diff --git a/CHANGELOG.md b/CHANGELOG.md
index 823120b..77287c9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -58,3 +58,4 @@
 0.7.25 - Enrichissement metadata des tokens, avec résolution locale limitée à SOL / WSOL, résolution des autres mints via comptes on-chain, Token-2022, Metaplex ou payloads DEX, et conservation explicite des cas non résolus  
 0.7.26 - Diagnostics locaux du pipeline persisté, correction de l’agrégation instruction-scoped des swaps Raydium, clarification des compteurs de replay/upsert, et validation qu’aucun trade candidate issu d’une transaction OK n’est perdu  
 0.7.27 - Validation multi-DEX et non-régression du pipeline sur Pump.fun, PumpSwap, Raydium CPMM et Raydium CLMM, avec corpus de tests, diagnostics de référence et garanties sur les événements non pricés  
+0.7.28 - nettoyer la couche DEX avant d’ajouter de nouveaux protocoles, sans modifier le transport HTTP/WS déjà stabilisé.  
diff --git a/Cargo.toml b/Cargo.toml
index e0b3c15..a429edd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.7.27"
+version = "0.7.28"
 edition = "2024"
 license = "MIT"
 repository = "https://git.sasedev.com/Sasedev/khadhroony-bobobot"
diff --git a/README.md b/README.md
index 3d75785..36b0ca0 100644
--- a/README.md
+++ b/README.md
@@ -2,256 +2,259 @@
 
 # khadhroony-bobobot
 
-Projet personnel Rust de détection, d’analyse de patterns et de trading/swap semi-automatisé de tokens et meme-tokens sur la blockchain Solana.
+`khadhroony-bobobot` est un workspace Rust destiné à la détection, au décodage, à l’analyse et, à terme, au trading semi-automatisé de tokens Solana.
+
+Le README précédent décrivait surtout l’état `0.3.1`. Ce fichier reflète l’état de reprise autour de `0.7.27` : le socle transport HTTP/WS, la résolution transactionnelle, le modèle SQLite, plusieurs connecteurs DEX, les candles, les signaux analytiques et l’application de démonstration existent déjà.
 
 ## 1. Objectif
 
-L’objectif du projet est de construire une application capable de :
+L’objectif opérationnel est de construire progressivement une application capable de :
 
-- détecter la création de tokens et de paires sur Solana,
-- suivre leur évolution technique et de marché,
-- collecter des informations utiles au filtrage,
-- analyser des patterns statistiques ou comportementaux,
-- préparer ensuite la gestion de wallets et les opérations de swap/trading.
+- détecter l’apparition de nouveaux tokens, pools, paires et listings sur Solana ;
+- identifier la première source de mint ou de lancement, même lorsque le token migre ensuite vers un autre DEX ;
+- décoder les transactions pertinentes des DEX et launch surfaces ciblés ;
+- séparer les swaps/candles des événements utiles seulement à l’analyse : liquidité, cycle de vie de pool, fees, rewards, administration, wallets observés ;
+- produire des métriques exploitables : prix, volume, candles/OHLCV, activité, bursts, déséquilibres buy/sell, signaux analytiques ;
+- préparer ensuite des règles déterministes de filtrage, d’achat, de vente, de stop-loss et de trailing stop ;
+- conserver une traçabilité locale suffisante pour rejouer, diagnostiquer et améliorer les décodeurs.
 
-Les cibles observées incluent notamment les DEX et protocoles tels que :
+Le but court terme n’est pas encore le live trading. Le but court terme est de fiabiliser le décodage multi-DEX et la matérialisation des objets métier nécessaires au trading.
 
-- Pump.fun
-- PumpSwap
-- Raydium
-- Meteora
-- Bags
-- FluxBeam
-- LaunchLab / LaunchBeam
-- Heaven
-- DexLab
-- Moonit
-- Zora
+## 2. Workspace
 
-La liste exacte pourra évoluer au fil du projet.
+Le workspace contient deux crates principales.
 
-## 2. Architecture générale
+| Crate | Rôle |
+|---|---|
+| `kb_lib` | Bibliothèque métier : configuration, tracing, clients réseau, pool HTTP, manager WS, résolution transactionnelle, décodage DEX, détection métier, persistance SQLite, backfill, metadata, candles, signaux analytiques. |
+| `kb_demo_app` | Application Tauri V2 de démonstration et d’inspection : fenêtres `Demo Ws`, `Demo Ws Manager`, `Demo Http`, `Demo Pipeline`, `Demo Pipeline 2`, graphiques candles et commandes de backfill/replay. |
 
-Le workspace Rust est organisé autour de deux sous-crates principales :
+La logique métier doit rester dans `kb_lib`. `kb_demo_app` doit rester une façade UI/Tauri et ne doit pas récupérer de logique Solana ou DEX profonde.
 
-- `kb_lib`
-- `kb_demo_app`
+## 3. État actuel autour de `0.7.27`
 
-### `kb_lib`
+### 3.1. Socle stabilisé à ne pas refactorer maintenant
 
-`kb_lib` porte la logique métier et technique :
+Ces éléments fonctionnent et ne sont pas bloquants pour les DEX. Ils ne doivent pas être remaniés dans la phase immédiate :
 
-- configuration JSON,
-- tracing,
-- constantes Solana,
-- clients réseau HTTP / WebSocket,
-- gestion future de gRPC Yellowstone,
-- persistance,
-- analyse de patterns,
-- gestion des wallets,
-- logique de détection et de filtrage.
+- `ws_client.rs` ;
+- `ws_manager.rs` ;
+- `http_client.rs` ;
+- `http_pool.rs` ;
+- couches JSON-RPC WS/HTTP déjà stabilisées ;
+- orchestration réseau utilisée par les fenêtres de démonstration.
+
+Ils pourront être améliorés plus tard, mais la priorité actuelle est le décodage DEX, les événements métier et les tables d’analyse.
+
+### 3.2. Pipeline métier existant
+
+Le pipeline `0.7.x` couvre déjà les étapes suivantes :
 
-### `kb_demo_app`
+1. réception d’observations via RPC WS ou backfill HTTP ;
+2. résolution des transactions via HTTP RPC ;
+3. projection transactionnelle normalisée en base ;
+4. décodage DEX dans `k_sol_dex_decoded_events` ;
+5. détection métier vers tokens, pools, paires, listings, origins et wallets observés ;
+6. matérialisation des trades exploitables ;
+7. agrégation pair metrics ;
+8. génération candles/OHLCV ;
+9. signaux analytiques simples ;
+10. inspection via l’application de démonstration.
+
+### 3.3. Connecteurs validés manuellement via l’application de démo
 
-`kb_demo_app` est l’application Demo Tauri V2 avec frontend TypeScript.
+Les connecteurs suivants ont déjà été testés via l’application de démonstration et doivent être verrouillés par corpus/replay avant d’ajouter de nouveaux DEX :
 
-Son rôle est de :
+- `pump_fun` ;
+- `pump_swap` ;
+- `raydium_cpmm` ;
+- `raydium_clmm`.
 
-- afficher l’interface utilisateur,
-- exposer les commandes Tauri,
-- déléguer la logique à `kb_lib`,
-- afficher les états, logs et événements remontés par la bibliothèque.
+### 3.4. Connecteurs déjà présents mais à consolider par corpus
+
+Les modules suivants existent ou sont partiellement représentés dans le code, mais doivent être consolidés par corpus local, invariants et documentation :
 
-Le crate expose une bibliothèque interne `kb_demo_app_lib` afin de limiter le couplage avec `main.rs` et de préparer une évolution mobile ultérieure.
+- `meteora_dbc` ;
+- `meteora_damm_v1` ;
+- `meteora_damm_v2` ;
+- `orca_whirlpools` ;
+- `fluxbeam` ;
+- `dexlab` ;
+- `raydium_amm_v4` legacy ;
+- launch origins déjà amorcées : `meteora_fun_launch`, `bags`, `moonit`.
 
-## 3. Contraintes techniques
+## 4. Matrice DEX et launch surfaces
 
-Le projet suit des contraintes strictes.
+La distinction importante est la suivante :
 
-### Contraintes de style et de structure
+- un **DEX effectif** permet de détecter et décoder des swaps, pools, liquidité et candles ;
+- une **launch surface** peut être la première source de mint ou de lancement, même si le token migre ensuite vers Raydium, Meteora ou un autre AMM ;
+- pour le trading, la première source de mint est une information de filtrage et de ciblage aussi importante que le DEX final.
 
-- Rust 2024.
-- Pas de `mod.rs`.
-- Les fichiers Rust commencent par une entête `// file: ...`.
-- Les fichiers `lib.rs` et `main.rs` activent `#![deny(unreachable_pub)]` et `#![warn(missing_docs)]`.
-- Les éléments publics sont documentés.
-- Les expositions publiques passent par la racine des crates.
-
-### Contraintes de code
-
-- pas de `anyhow`,
-- pas de `thiserror`,
-- pas de `?` dans le code applicatif,
-- pas de `unwrap` ni `expect` dans le code applicatif,
-- utilisation préférée de `match`, `if let Err`, `let Err = ... else`.
-
-Les tests unitaires peuvent utiliser `?`, `unwrap` et `expect` si nécessaire.
-
-### Contraintes d’import
-
-- pas de `use` sur les types/fonctions des crates externes,
-- seuls les imports de traits sont tolérés,
-- les appels doivent utiliser les chemins complets, par exemple `std::string::String` ou `tokio::sync::mpsc::Sender`.
-
-## 4. Configuration
-
-L’application utilisera un fichier `config.json`.
-
-La configuration devra à terme permettre de définir :
-
-- les endpoints HTTP,
-- les endpoints WebSocket,
-- leur nom logique,
-- les rôles affectés à chaque endpoint,
-- les limitations de débit,
-- les délais et timeouts,
-- les répertoires locaux,
-- la base SQLite,
-- le futur répertoire des wallets Solana,
-- les paramètres de tracing,
-- la politique de reconnexion.
-
-Chaque endpoint devra pouvoir être identifié et affecté à une tâche spécifique, par exemple :
-
-- réception des notifications de slots,
-- réception des program subscriptions,
-- réception des logs,
-- exécution des requêtes HTTP,
-- endpoint de secours.
-
-Cela permet de répartir la charge ou d’adapter le provider selon son niveau de service, ses limitations ou l’usage d’une API key.
-
-## 5. Tracing et logs
-
-Le tracing sera centralisé dans `kb_lib`.
-
-Le système devra supporter :
-
-- sortie console,
-- sortie fichier,
-- niveau configurable,
-- format de message configurable,
-- format temporel configurable,
-- ANSI console activable/désactivable,
-- comportement spécifique pour les tests.
-
-## 6. Clients réseau
-
-## 6.1. `WsClient`
-
-`kb_lib` devra contenir un `WsClient` asynchrone basé sur `tokio-tungstenite`.
-
-Exigences initiales :
-
-- client duplicable,
-- connexion à plusieurs serveurs WS RPC,
-- identifiants de requêtes incrémentaux par instance,
-- flux de lecture et flux d’écriture séparés,
-- séparation des réponses RPC et des notifications,
-- registre `subscribe` / `unsubscribe`,
-- tentative d’unsubscribe avant fermeture,
-- timeout pour ne pas bloquer le disconnect.
-
-Le client ne devra pas s’appuyer sur `solana-pubsub-client`, même si son comportement fonctionnel peut s’en inspirer.
-
-## 6.2. `HttpClient`
-
-`kb_lib` devra contenir un `HttpClient` asynchrone basé sur `reqwest`.
-
-Exigences initiales :
-
-- client duplicable,
-- connexion à plusieurs endpoints HTTP RPC,
-- limites de requêtes configurables,
-- profils par endpoint,
-- adaptation à des providers publics ou privés.
-
-Le client ne devra pas s’appuyer sur le `RpcClient` officiel de `solana-client`.
-
-## 6.3. `GrpcClient`
-
-Le support `GrpcClient` basé sur `yellowstone-grpc-client` et `yellowstone-grpc-proto` est prévu dans une phase ultérieure.
-
-## 7. Types et RPC
-
-Le projet cherchera à réutiliser autant que possible les types officiels fournis par l’écosystème Solana, notamment pour les payloads et surtout pour le parsing des réponses.
-
-Objectif :
-
-- limiter l’invention de structures approximatives,
-- réutiliser les types des crates officielles lorsque cela est pertinent,
-- encapsuler si besoin ces types dans une couche propre au projet.
-
-Le projet pourra embarquer son propre générateur de requêtes JSON-RPC 2.0 afin d’encapsuler proprement les appels HTTP et WS.
-
-## 8. Base de données
-
-Le stockage initial se fera dans SQLite.
-
-Cette première étape doit permettre :
-
-- de conserver l’historique observé,
-- de stocker des événements et états techniques,
-- de préparer l’analyse.
-
-Une migration vers PostgreSQL pourra être envisagée plus tard lorsque l’application aura stabilisé ses besoins.
-
-## 9. Frontend
-
-L’application Tauri démarrera avec une interface volontairement simple.
-
-### UI minimale prévue
-
-- un bouton ou toggle de connexion,
-- un bouton d’arrêt si nécessaire,
-- une zone de texte scrollable et en lecture seule,
-- affichage des messages reçus depuis `kb_lib`.
-
-Cette première UI servira surtout à valider :
-
-- l’initialisation,
-- le tracing,
-- la délégation vers `kb_lib`,
-- la remontée d’événements depuis les clients réseau.
-
-## 10. Constantes Solana
-
-Le projet devra réutiliser autant que possible les Program IDs et identifiants officiels fournis par les crates officielles au lieu de les recopier à la main.
-
-Exemples :
-
-- SPL Token
-- SPL Token-2022
-- Associated Token Account
-- Wrapped SOL mint
-- System Program
-- Compute Budget Program
-
-## 11. Génération de bindings TypeScript
-
-Les structures partagées entre Rust et le frontend devront être générées avec `ts-rs`.
-
-Le flux prévu est :
-
-```bash
-cargo test export_bindings
+### 4.1. Matrice de travail
+
+| Code cible | Type | Statut actuel | Prochaine action |
+|---|---:|---|---|
+| `pump_fun` | Launch + bonding curve | testé via démo | verrouiller corpus, invariants et documentation |
+| `pump_swap` | AMM / swap | testé via démo | verrouiller corpus, invariants et candles |
+| `raydium_cpmm` | AMM | testé via démo | verrouiller corpus, swaps et candles |
+| `raydium_clmm` | CLMM | testé via démo | verrouiller corpus, swaps et candles |
+| `raydium_launchlab` / `raydium_launchpad` | Launch surface + migration | manquant | ajouter comme origine de mint/lancement et migration vers Raydium |
+| `raydium_amm_v4` | AMM legacy | présent, à isoler | traiter après les autres Raydium avec corpus dédié |
+| `meteora_dbc` | Launch / bonding curve | présent, à consolider | corpus, lifecycle, migration et swaps exploitables |
+| `meteora_damm_v1` | AMM legacy | présent, à consolider | corpus et séparation swaps/liquidité/events |
+| `meteora_damm_v2` | AMM | présent, à consolider | corpus et séparation swaps/liquidité/events |
+| `meteora_dlmm` | DLMM | manquant | ajouter à la matrice, puis corpus avant décodage |
+| `orca_whirlpools` | CLMM | présent, à consolider | corpus fiable et validation des instructions utiles |
+| `fluxbeam` | DEX | présent, à consolider | corpus fiable avant validation |
+| `dexlab` | DEX | présent, à consolider | corpus fiable avant validation |
+| `bags` | Launch surface / attribution | amorcé | conserver comme origine de lancement, relier à Meteora si prouvé |
+| `letsbonk` / `bonk_fun` | Launch surface | manquant | ajouter comme origine LaunchLab/Raydium, pas comme AMM autonome tant que non prouvé |
+| `boop_fun` | Launch surface | manquant | ajouter comme origine de mint/lancement et migration |
+| `moonshot` / `moonit` | Launch surface | amorcé partiellement | remplacer les heuristiques faibles par corpus et règles prouvées |
+| `believe` | Launch surface | manquant | ajouter comme origine associée à Meteora DBC si les comptes l’attestent |
+| `heaven` | Launch + AMM candidat | manquant | ajouter corpus et déterminer séparation launch/swap |
+| `zora_solana` | À vérifier | écarté maintenant | ne pas intégrer avant preuve de programme Solana pertinent |
+
+## 5. Base de données
+
+SQLite reste le stockage local initial.
+
+Organisation actuelle à conserver :
+
+- `kb_lib/src/db/schema.rs` crée les tables et index ;
+- chaque table/index est créée dans une fonction dédiée ;
+- les requêtes sont sous `kb_lib/src/db/queries/` ;
+- les entités persistées sont sous `kb_lib/src/db/entities/` ;
+- les DTO applicatifs sont sous `kb_lib/src/db/dtos/`.
+
+`schema.rs` n’est donc pas un fichier métier à splitter immédiatement. Il reste acceptable tant qu’il garde uniquement la responsabilité de création de schéma.
+
+### 5.1. Tables existantes importantes
+
+Le modèle actuel contient déjà notamment :
+
+- transactions et instructions Solana normalisées ;
+- DEX connus ;
+- événements DEX décodés ;
+- tokens, pools, pool tokens, paires, listings ;
+- launch surfaces et attributions ;
+- pool origins ;
+- swaps et trade events ;
+- liquidity events ;
+- wallets, participations, holdings ;
+- candles ;
+- metrics et analytic signals ;
+- diagnostics locaux.
+
+### 5.2. Tables futures prioritaires
+
+Avant d’étendre trop agressivement les DEX, le modèle doit prévoir les cas non directement tradables :
+
+| Table cible | Rôle |
+|---|---|
+| `k_sol_transaction_classifications` | classifier les transactions connues, inconnues, partielles, échouées, non-DEX, DEX-candidates, launch-candidates. |
+| `k_sol_protocol_candidates` | conserver les programmes ou patterns suspects/récurrents qui ne correspondent pas encore à un DEX connu. |
+| `k_sol_pool_lifecycle_events` | matérialiser initialize/create/migrate/open/close/status events. |
+| `k_sol_fee_events` | conserver fees, creator fees, protocol fees, fund fees. |
+| `k_sol_reward_events` | conserver reward params, init rewards, collect rewards. |
+| `k_sol_pool_admin_events` | conserver changements de config, authority, pause/resume, paramètres de pool. |
+
+`k_sol_liquidity_events` existe déjà et doit être stabilisée/étendue plutôt que recréée sans nécessité.
+
+## 6. Politique de refactor actuelle
+
+Le code et la documentation sont vivants. Les refactors agressifs sont acceptables lorsque cela rend le pipeline plus propre et plus durable, à condition de respecter ces limites :
+
+- ne pas casser les fonctionnalités déjà validées ;
+- ne pas toucher pour le moment aux clients et managers réseau stabilisés ;
+- faire des étapes courtes, testables et rejouables ;
+- conserver les invariants de replay local ;
+- ne pas transformer un événement non price-action en trade/candle ;
+- documenter les nouveaux types publics avec une rustdoc utile mais pas surchargée ;
+- laisser `local_pipeline_diagnostics` servir d’outil temporaire de validation tant que les DEX ne sont pas stabilisés.
+
+Les fichiers à surveiller en priorité sont :
+
+| Fichier | Action recommandée |
+|---|---|
+| `kb_lib/src/dex_decode.rs` | extraire classification, catégories d’événements et enrichissement commun. |
+| `kb_lib/src/dex_detect.rs` | extraire helpers communs pool/pair/listing/origin/wallets et isoler les handlers par famille. |
+| `kb_lib/src/trade_aggregation.rs` | isoler extraction de montants, normalisation trade et pricing. |
+| `kb_lib/src/dex/*.rs` | homogénéiser les contrats de décodeurs sans forcer un gros trait prématuré. |
+
+## 7. Contraintes de code
+
+Contraintes maintenues :
+
+- Rust 2024 ;
+- pas de `mod.rs` ;
+- fichiers Rust avec entête `// file: ...` ;
+- fichiers `.toml` avec entête `# file: ...` ;
+- exposition centralisée via `lib.rs` ;
+- `#![deny(unreachable_pub)]` et `#![warn(missing_docs)]` dans les racines concernées ;
+- pas de `anyhow` ;
+- pas de `thiserror` ;
+- pas de `?`, `unwrap`, `expect` dans le code applicatif ;
+- usage privilégié de `match`, `if let Err`, `let Err = ... else` ;
+- imports externes limités, sauf traits lorsque nécessaire ;
+- tests unitaires et tests de replay maintenus.
+
+Les tests peuvent rester plus souples lorsque cela clarifie le test.
+
+## 8. Priorité immédiate
+
+La reprise doit suivre cet ordre :
+
+1. finir/verrouiller `0.7.27` sur `pump_fun`, `pump_swap`, `raydium_cpmm`, `raydium_clmm` ;
+2. démarrer `0.7.28` par un refactor commun DEX sans toucher au transport ;
+3. ajouter la matrice DEX documentée et les corpus de validation ;
+4. ajouter les tables de classification des transactions inconnues et protocol candidates ;
+5. matérialiser les événements non-trade : lifecycle, liquidité, fees, rewards, admin ;
+6. consolider Meteora, y compris `meteora_dlmm` dans la matrice ;
+7. ajouter les launch surfaces manquantes comme origines de mint : LaunchLab/Launchpad, LetsBonk/Bonk.fun, Boop.fun, Moonshot/Moonit, Believe ;
+8. traiter Heaven ;
+9. consolider Orca/FluxBeam/DexLab ;
+10. isoler Raydium AMM v4 legacy ;
+11. effectuer une validation DEX v1 consolidée ;
+12. reprendre ensuite l’UI analytique et les vues token/pair/pool.
+
+## 9. Fichiers utiles pour reprendre dans une nouvelle session
+
+Pour reprendre rapidement le codage dans une nouvelle session, fournir au minimum :
+
+- `README.md` ;
+- `ROADMAP.md` ;
+- `CHANGELOG.md` ;
+- `Cargo.toml` racine ;
+- `kb_lib/Cargo.toml` ;
+- `kb_lib/src/lib.rs` ;
+- `kb_lib/src/constants.rs` ;
+- `kb_lib/src/dex.rs` ;
+- `kb_lib/src/dex/*.rs` ;
+- `kb_lib/src/dex_decode.rs` ;
+- `kb_lib/src/dex_detect.rs` ;
+- `kb_lib/src/trade_aggregation.rs` ;
+- `kb_lib/src/pair_candle_aggregation.rs` ;
+- `kb_lib/src/local_pipeline_replay.rs` ;
+- `kb_lib/src/local_pipeline_validation.rs` ;
+- `kb_lib/src/local_pipeline_diagnostics.rs` ;
+- `kb_lib/src/db/schema.rs` ;
+- `kb_lib/src/db.rs` ;
+- `kb_lib/src/db/entities.rs` et `kb_lib/src/db/entities/*` ;
+- `kb_lib/src/db/dtos.rs` et `kb_lib/src/db/dtos/*` ;
+- `kb_lib/src/db/queries.rs` et `kb_lib/src/db/queries/*`.
+
+Ajouter `kb_demo_app/src/demo_pipeline*.rs` seulement si la tâche concerne l’UI ou les diagnostics affichés.
+
+## 10. Prompt court de reprise
+
+```text
+Je reprends le workspace Rust khadhroony-bobobot autour de la version 0.7.27.
+Objectif actuel : finaliser le pipeline DEX Solana avant trading.
+Ne pas toucher pour le moment à ws_client/ws_manager/http_client/http_pool : ils fonctionnent et sont non bloquants.
+Priorité : refactor DEX commun à partir de 0.7.28, matrice DEX, transactions inconnues/protocol candidates, événements non-trade, puis ajout/consolidation des DEX et launch surfaces.
+Respecter les contraintes : Rust 2024, pas de mod.rs, pas de anyhow/thiserror, pas de ?/unwrap/expect dans le code applicatif, rustdoc utile sur l’API publique.
+Les connecteurs à verrouiller avant extension sont pump_fun, pump_swap, raydium_cpmm et raydium_clmm.
+Les launch surfaces sont importantes comme première source de mint, même si le token migre ensuite vers Raydium/Meteora/autre.
 ```
-
-Exemple déjà présent :
-
-- `kb_demo_app/src/splash.rs`
-- `kb_demo_app/frontend/ts/bindings/SplashOrder.ts`
-
-## 12. État du projet
-
-voir `CHANGELOG.md`
-
-## 13. Feuille de route
-
-La feuille de route détaillée est disponible dans :
-
-- `ROADMAP.md`
-
-## 14. Licence
-
-Licence MIT.
diff --git a/ROADMAP.md b/ROADMAP.md
index 4b87cf2..008a748 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -749,9 +749,7 @@ Réalisé :
   - seuls les trade candidates issus de transactions échouées restent ignorés.
 
 ### 6.059. Version `0.7.27` — Validation multi-DEX des connecteurs déjà branchés
-Objectif : verrouiller la non-régression du pipeline actuel avant d’ajouter de nouveaux DEX ou d’ouvrir la phase d’analyse `0.8.x`.
-
-À faire :
+Réalisé :
 
 - rejouer des bases neuves de test pour `pump_fun`, `pump_swap`, `raydium_cpmm` et `raydium_clmm`,
 - ne pas ajouter de nouveau DEX dans cette version ; cette version sert uniquement à valider les connecteurs déjà branchés,
@@ -765,60 +763,147 @@ Objectif : verrouiller la non-régression du pipeline actuel avant d’ajouter d
 - conserver la tolérance aux événements DEX partiels tout en refusant les trades sans montant ou prix exploitable,
 - valider que les transactions échouées restent traçables dans les événements décodés sans produire de `k_sol_trade_events`.
 
-### 6.060. Version `0.7.28` — Matérialisation des événements liquidité et cycle de vie pool
-Objectif : exploiter les événements non buy/sell utiles à l’analyse et au trading semi-automatique sans les mélanger avec les trades/candles.
+### 6.060. Version `0.7.28` — Refactor DEX commun et préparation extension
+Réalisé :
+
+- ne pas toucher à `ws_client.rs`, `ws_manager.rs`, `http_client.rs`, `http_pool.rs` ni aux couches JSON-RPC déjà stabilisées,
+- extraire depuis `dex_decode.rs` les catégories communes d’événements : trade, candle candidate, liquidity candidate, fee candidate, reward candidate, admin candidate, pool lifecycle candidate,
+- créer une représentation interne documentée pour les familles d’événements DEX afin d’éviter les chaînes dispersées dans plusieurs fichiers,
+- clarifier la différence entre événement décodé, événement actionnable, trade candidate, candle candidate et événement conservé seulement pour analyse,
+- simplifier `dex_decode.rs` en gardant son rôle de service de persistance-orchestration,
+- simplifier `dex_detect.rs` en extrayant les helpers communs pool/pair/listing/origin/wallet quand cela réduit la duplication,
+- homogénéiser les contrats des modules `kb_lib/src/dex/*.rs` sans imposer trop tôt un trait générique lourd,
+- vérifier la rustdoc publique : utile, courte, orientée responsabilité ; supprimer la documentation redondante ou trop chargée,
+- conserver les tests verts et ajouter des tests de non-régression sur les catégories d’événements existantes.
+
+Contraintes :
+
+- refactor agressif autorisé si le résultat est plus propre,
+- chaque changement doit rester rejouable et testable,
+- aucun changement de comportement métier volontaire dans cette version,
+- aucun événement non price-action ne doit devenir un trade ou une candle.
+
+### 6.061. Version `0.7.29` — Matrice DEX, corpus et documentation de support
+Objectif : rendre explicite ce qui est validé, présent, partiel, manquant ou volontairement ignoré.
 
 À faire :
 
-- stabiliser ou ajouter la table `k_sol_liquidity_events`,
-- stabiliser ou ajouter la table `k_sol_pool_lifecycle_events`,
-- matérialiser les événements de type `increase_liquidity`, `decrease_liquidity`, `add_liquidity`, `remove_liquidity`, `open_position`, `close_position`, `initialize`, `create_pool`, `migrate` et assimilés,
-- rattacher chaque événement métier à `dex_id`, `pool_id`, `pair_id`, `transaction_id`, `decoded_event_id`, `signature` et `slot`,
-- conserver le `payload_json` source pour audit et extension future,
-- alimenter les diagnostics locaux avec les compteurs liquidité et cycle de vie,
-- garantir qu’un événement de liquidité ou de cycle de vie ne produit jamais de candle directement,
-- préparer les signaux futurs liés à la liquidité initiale, à l’ajout/retrait brutal de liquidité, aux migrations et aux changements de statut de pool.
+- ajouter et maintenir une matrice DEX dans `README.md` et `ROADMAP.md`,
+- distinguer clairement `DEX effectif`, `launch surface`, `pool origin`, `launch origin` et `migration target`,
+- documenter que les launch surfaces sont importantes comme première source de mint/lancement même lorsqu’un token migre ensuite vers un autre DEX,
+- constituer une liste de corpus par DEX/surface : signatures, pools, token mints, résultat attendu,
+- indiquer pour chaque protocole : statut, source de preuve, type d’événements couverts, tables alimentées, limites connues,
+- retirer `zora_solana` du phasage actif tant qu’aucun programme Solana pertinent n’est prouvé,
+- ajouter `meteora_dlmm` à la matrice comme variante Meteora manquante à couvrir plus tard,
+- préparer les diagnostics SQL de référence par protocole et par table métier.
 
-### 6.061. Version `0.7.29` — Matérialisation des événements fees, rewards et administration
-Objectif : conserver les événements non price-action utiles au risque, à l’analyse économique et à la traçabilité opérationnelle des pools.
+Matrice cible initiale :
+
+| Code cible | Type | Statut | Objectif immédiat |
+|---|---:|---|---|
+| `pump_fun` | launch + bonding curve | testé via démo | verrouiller corpus et invariants |
+| `pump_swap` | AMM / swap | testé via démo | verrouiller trades/candles |
+| `raydium_cpmm` | AMM | testé via démo | verrouiller trades/candles |
+| `raydium_clmm` | CLMM | testé via démo | verrouiller trades/candles |
+| `raydium_launchlab` / `raydium_launchpad` | launch surface | manquant | détecter mint, launch, migration |
+| `raydium_amm_v4` | AMM legacy | présent, à isoler | corpus dédié après autres DEX |
+| `meteora_dbc` | launch / bonding curve | présent, à consolider | lifecycle, migration, swaps utiles |
+| `meteora_damm_v1` | AMM legacy | présent, à consolider | corpus et séparation events |
+| `meteora_damm_v2` | AMM | présent, à consolider | corpus et séparation events |
+| `meteora_dlmm` | DLMM | manquant | ajouter corpus avant décodeur |
+| `orca_whirlpools` | CLMM | présent, à consolider | validation par corpus |
+| `fluxbeam` | DEX | présent, à consolider | validation par corpus |
+| `dexlab` | DEX | présent, à consolider | validation par corpus |
+| `bags` | launch surface | amorcé | attribution fiable, migration si prouvée |
+| `letsbonk` / `bonk_fun` | launch surface | manquant | origine LaunchLab/Raydium |
+| `boop_fun` | launch surface | manquant | origine mint/lancement/migration |
+| `moonshot` / `moonit` | launch surface | amorcé partiellement | corpus, éviter heuristique faible |
+| `believe` | launch surface | manquant | origine Meteora DBC si comptes probants |
+| `heaven` | launch + AMM candidat | manquant | corpus et séparation launch/swap |
+
+### 6.062. Version `0.7.30` — Transactions inconnues et protocol candidates
+Objectif : ne plus perdre les transactions utiles qui ne correspondent pas encore à un DEX connu.
 
 À faire :
 
-- ajouter ou stabiliser `k_sol_fee_events`,
-- ajouter ou stabiliser `k_sol_reward_events`,
-- ajouter ou stabiliser `k_sol_pool_admin_events`,
+- ajouter `k_sol_transaction_classifications`,
+- ajouter `k_sol_protocol_candidates`,
+- classifier les transactions résolues en catégories : known dex, known launch surface, unknown program, non-dex, failed transaction, partial decode, ignored technical transaction,
+- conserver les `program_id`, comptes, signatures, préfixes de `data`, logs et indices d’instructions utiles à l’analyse,
+- créer des requêtes de diagnostic pour repérer les programmes inconnus fréquents,
+- permettre de promouvoir plus tard un protocol candidate vers un vrai DEX/surface sans perdre l’historique,
+- garantir que ces tables n’alimentent jamais directement les trades/candles.
+
+### 6.063. Version `0.7.31` — Événements non-trade v1 : liquidité et cycle de vie pool
+Objectif : exploiter les événements utiles à l’analyse et au trading semi-automatique sans les mélanger avec les swaps/candles.
+
+À faire :
+
+- stabiliser et étendre `k_sol_liquidity_events` au lieu de la recréer inutilement,
+- ajouter `k_sol_pool_lifecycle_events`,
+- matérialiser les événements `initialize`, `create_pool`, `migrate`, `open_position`, `close_position`, `increase_liquidity`, `decrease_liquidity`, `add_liquidity`, `remove_liquidity` et assimilés,
+- rattacher chaque événement à `dex_id`, `pool_id`, `pair_id`, `transaction_id`, `decoded_event_id`, `signature` et `slot` lorsque les informations existent,
+- conserver le `payload_json` source pour audit,
+- alimenter les diagnostics locaux avec les compteurs liquidité/lifecycle,
+- garantir qu’un événement de liquidité ou de cycle de vie ne produit jamais de candle directement.
+
+### 6.064. Version `0.7.32` — Événements non-trade v2 : fees, rewards et administration
+Objectif : conserver les événements utiles au risque, au scoring, à l’économie du pool et à la traçabilité opérationnelle.
+
+À faire :
+
+- ajouter `k_sol_fee_events`,
+- ajouter `k_sol_reward_events`,
+- ajouter `k_sol_pool_admin_events`,
 - matérialiser les événements `collect_protocol_fee`, `collect_fund_fee`, `collect_creator_fee`, `collect_fee` et assimilés,
 - matérialiser les événements `set_reward_params`, `initialize_reward`, `collect_reward`, `update_reward_infos` et assimilés,
 - matérialiser les événements `set_config`, `update_config`, `set_authority`, `set_fee_rate`, `pause`, `resume` et assimilés,
-- rattacher chaque événement à la transaction, au decoded event, au pool, à la paire et aux wallets observés lorsque les comptes sont disponibles,
-- documenter clairement que ces événements sont utiles à l’analyse et au scoring mais ne sont ni des trades ni des candles.
+- rattacher ces événements aux transactions, decoded events, pools, paires et wallets observés lorsque les comptes le permettent,
+- documenter clairement que ces événements ne sont ni des trades ni des candles.
 
-### 6.062. Version `0.7.30` — Meteora : DBC / DAMM v1 / DAMM v2
-Objectif : ajouter ou stabiliser les connecteurs Meteora avec une séparation claire entre swaps, liquidité, fees, rewards et événements pool.
+### 6.065. Version `0.7.33` — Meteora : DBC / DAMM v1 / DAMM v2 / DLMM
+Objectif : consolider Meteora comme famille multi-programmes au lieu de traiter chaque variante comme un cas isolé incomplet.
 
 À faire :
 
-- vérifier les programmes et discriminants réellement utilisés pour `Meteora DBC`, `Meteora DAMM v1` et `Meteora DAMM v2`,
-- constituer un petit corpus local de pools et signatures fiables pour chaque variante,
-- décoder les créations de pool, swaps et événements de liquidité exploitables,
-- alimenter `k_sol_dex_decoded_events`, les tables métier pool/pair/listing et les nouvelles tables d’événements non-trade,
-- vérifier l’idempotence du replay local sur un corpus mixte Meteora,
-- documenter les limites connues des variantes insuffisamment couvertes par le corpus.
+- vérifier les programmes et discriminants réellement utilisés pour `Meteora DBC`, `Meteora DAMM v1`, `Meteora DAMM v2` et `Meteora DLMM`,
+- ajouter `meteora_dlmm` à la couverture cible seulement après corpus fiable,
+- constituer un corpus local par variante,
+- décoder les créations de pool, swaps, liquidités et événements lifecycle exploitables,
+- identifier les cas où `DBC` sert de launch origin avant migration vers un AMM,
+- alimenter `k_sol_dex_decoded_events`, les tables pool/pair/listing, les origins et les tables non-trade,
+- vérifier l’idempotence du replay local sur un corpus Meteora mixte,
+- documenter les limites connues des variantes insuffisamment couvertes.
 
-### 6.063. Version `0.7.31` — Launch DEX : LaunchLab / Fun Launch / Bags / Moonit
-Objectif : couvrir les surfaces de lancement et de migration de tokens sans confondre origine de lancement et protocole DEX final.
+### 6.066. Version `0.7.34` — Launch surfaces : LaunchLab, LetsBonk, Bags, Moonshot/Moonit, Boop.fun, Believe
+Objectif : détecter la première source de mint/lancement des tokens même lorsque le swap final se fait ailleurs.
 
 À faire :
 
-- ajouter ou stabiliser les mappings `LaunchLab`, `Fun Launch`, `Bags` et `Moonit`,
-- distinguer clairement launch origin, pool origin et DEX effectif,
-- détecter les créations de token, pools initiaux, migrations et listings dérivés,
+- ajouter ou stabiliser `raydium_launchlab` / `raydium_launchpad`,
+- ajouter `letsbonk` / `bonk_fun` comme surface d’origine rattachée à LaunchLab/Raydium si le corpus le prouve,
+- ajouter `boop_fun` comme surface d’origine et suivre ses migrations,
+- consolider `moonshot` / `moonit` avec corpus au lieu de simples heuristiques faibles,
+- consolider `bags` comme surface d’origine, notamment lorsque le token passe par Meteora DBC/DAMM,
+- ajouter `believe` comme surface d’origine associée à Meteora DBC si les comptes/authorities le prouvent,
+- distinguer `launch_origin`, `pool_origin`, `dex_effective` et `migration_target`,
 - rattacher les launch origins aux pools et paires lorsque les comptes permettent un matching fiable,
-- enrichir les diagnostics pour exposer les objets détectés par surface de lancement,
-- éviter les heuristiques trop larges lorsqu’un suffixe de mint ou un label externe ne suffit pas à prouver l’origine.
+- exposer les origins dans les diagnostics et l’UI d’inspection.
 
-### 6.064. Version `0.7.32` — Orca / FluxBeam / DexLab : corpus et validation ciblée
-Objectif : ajouter les connecteurs restants à partir de corpus locaux vérifiables et garder les décodeurs heuristiques isolés tant qu’ils ne sont pas prouvés.
+### 6.067. Version `0.7.35` — Heaven : corpus, launch et AMM
+Objectif : ajouter Heaven sans le classer trop tôt comme simple DEX ou simple launchpad.
+
+À faire :
+
+- vérifier le ou les programmes Heaven réellement observés sur mainnet,
+- constituer un corpus local de mints, pools et swaps Heaven,
+- séparer les événements de lancement des événements de swap,
+- ajouter les decoded events, launch origins, pool/pair/listing et trade events seulement lorsque les instructions sont prouvées,
+- documenter les limites si le corpus ne permet pas encore de matérialiser tous les événements,
+- vérifier que Heaven ne crée pas de candles invalides en cas d’événement de launch non pricé.
+
+### 6.068. Version `0.7.36` — Orca / FluxBeam / DexLab : corpus et validation ciblée
+Objectif : consolider les connecteurs déjà présents à partir de corpus locaux vérifiables.
 
 À faire :
 
@@ -829,32 +914,33 @@ Objectif : ajouter les connecteurs restants à partir de corpus locaux vérifiab
 - marquer explicitement les variantes partiellement supportées ou heuristiques,
 - rejouer les corpus plusieurs fois pour vérifier l’idempotence et l’absence de trades/candles invalides.
 
-### 6.065. Version `0.7.33` — Validation DEX v1 consolidée
-Objectif : rejouer tous les DEX supportés et valider les invariants du pipeline complet avant de traiter Raydium AMM v4 legacy séparément.
-
-À faire :
-
-- rejouer des bases neuves couvrant tous les connecteurs DEX supportés hors `raydium_amm_v4` legacy,
-- vérifier les compteurs globaux et par DEX : decoded events, trade events, liquidity events, lifecycle events, fee events, reward events, admin events, candles et analytic signals,
-- contrôler que chaque famille d’événements alimente uniquement les tables métier prévues,
-- vérifier les diagnostics bloquants et les samples d’anomalie,
-- documenter les corpus utilisés pour chaque DEX,
-- conserver une matrice de support par DEX, variante, instruction et type d’événement.
-
-### 6.066. Version `0.7.34` — Raydium AMM v4 legacy : corpus et validation ciblée
-Objectif : traiter le vrai Raydium AMM v4 historique après les autres DEX, afin de l’isoler correctement de `raydium_cpmm`, `raydium_clmm` et des labels Raydium génériques.
+### 6.069. Version `0.7.37` — Raydium AMM v4 legacy : corpus et validation ciblée
+Objectif : traiter le vrai Raydium AMM v4 historique après les autres Raydium, afin de l’isoler de `raydium_cpmm`, `raydium_clmm` et des labels Raydium génériques.
 
 À faire :
 
 - rechercher des pools réellement rattachés au programme `675kPX9MHTjS2zt1qfr1NYHuzeLXfQM9H24wFSUt1Mp8`,
-- constituer un petit corpus local de signatures/pools AMM v4 fiables pour les tests,
-- vérifier que les adresses issues de Dexscreener ou d’autres explorateurs ne sont pas seulement catégorisées globalement comme `Raydium`,
+- constituer un petit corpus local de signatures/pools AMM v4 fiables,
+- vérifier que les adresses issues d’explorateurs ne sont pas seulement catégorisées globalement comme `Raydium`,
 - ajouter des requêtes de diagnostic par `program_id`, `accounts_json` et préfixe `data_json`,
-- valider la prise en charge `initialize2` et identifier les instructions de swap AMM v4 à supporter si elles apparaissent dans les transactions testées,
-- renommer et stabiliser les fonctions internes autour de `raydium_amm_v4` afin d’éviter l’ambiguïté avec `raydium_cpmm` et `raydium_clmm`,
-- documenter les limites connues si le corpus AMM v4 reste trop faible.
+- valider `initialize2` et identifier les instructions de swap AMM v4 à supporter si elles apparaissent dans le corpus,
+- renommer/stabiliser les fonctions internes autour de `raydium_amm_v4` pour éviter l’ambiguïté avec `raydium_cpmm` et `raydium_clmm`,
+- documenter les limites connues si le corpus AMM v4 reste faible.
 
-### 6.067. Version `0.7.35` — `kb_demo_app` : overlays analytiques
+### 6.070. Version `0.7.38` — Validation DEX v1 consolidée
+Objectif : rejouer tous les DEX et launch surfaces supportés et valider les invariants du pipeline complet.
+
+À faire :
+
+- rejouer des bases neuves couvrant tous les connecteurs DEX supportés,
+- vérifier les compteurs globaux et par DEX : decoded events, trade events, liquidity events, lifecycle events, fee events, reward events, admin events, candles et analytic signals,
+- contrôler que chaque famille d’événements alimente uniquement les tables métier prévues,
+- vérifier les diagnostics bloquants et les samples d’anomalie,
+- documenter les corpus utilisés pour chaque DEX/surface,
+- conserver une matrice de support par DEX, variante, instruction et type d’événement,
+- verrouiller les invariants avant d’ouvrir l’analyse `0.8.x`.
+
+### 6.071. Version `0.7.39` — `kb_demo_app` : overlays analytiques
 Objectif : rendre visibles les signaux analytiques directement sur les graphes et vues de marché.
 
 À faire :
@@ -863,9 +949,9 @@ Objectif : rendre visibles les signaux analytiques directement sur les graphes e
 - ajouter des marqueurs pour `first_trade_seen`, `trade_burst_60s`, `buy_sell_imbalance_60s`, `price_jump_up_60s`, `price_jump_down_60s` et `volume_spike_60s`,
 - permettre le filtrage par type de signal et par sévérité,
 - afficher un panneau latéral listant les signaux liés à une paire et à un timeframe,
-- préparer l’extension future vers des indicateurs Ichimoku, Kumo, projections ABCD et égalités temps/prix sans les mélanger au pipeline de décodage DEX.
+- préparer l’extension future vers Ichimoku, Kumo, projections ABCD et égalités temps/prix sans les mélanger au pipeline de décodage DEX.
 
-### 6.068. Version `0.7.36` — `kb_demo_app` : vues consolidées token / pair / pool
+### 6.072. Version `0.7.40` — `kb_demo_app` : vues consolidées token / pair / pool
 Objectif : fournir une lecture métier plus confortable du modèle `0.7.x`.
 
 À faire :
@@ -873,11 +959,11 @@ Objectif : fournir une lecture métier plus confortable du modèle `0.7.x`.
 - ajouter une fiche token avec mint, programme token, metadata, pools, paires et historique de découverte,
 - ajouter une fiche paire avec base/quote, DEX, pool, métriques, candles, signaux et derniers trades,
 - ajouter une fiche pool avec composition, vaults, origine, première signature vue, programme DEX et statut de décodage,
-- relier dans l’UI les launch origins, pool origins, wallets observés, holdings observés, événements de liquidité, événements lifecycle, fees, rewards, admin, candles et analytic signals,
+- relier dans l’UI les launch origins, pool origins, wallets observés, holdings observés, événements de liquidité, lifecycle, fees, rewards, admin, candles et analytic signals,
 - préparer une navigation transversale entre objets techniques et objets métier,
 - rendre explicites les cas `tradeCount = null`, `lastPriceQuotePerBase = null`, tokens non enrichis et événements conservés uniquement pour analyse.
 
-### 6.069. Version `0.7.37` — Finition UI `0.7.x`
+### 6.073. Version `0.7.41` — Finition UI `0.7.x`
 Objectif : stabiliser la couche desktop de validation avant l’ouverture de `0.8.x`.
 
 À faire :
@@ -886,41 +972,52 @@ Objectif : stabiliser la couche desktop de validation avant l’ouverture de `0.
 - améliorer la navigation, les filtres et la pagination,
 - ajouter les derniers raffinements de confort et de lisibilité,
 - préparer une base UI suffisamment stable pour la future phase d’analyse et filtrage `0.8.x`,
-- vérifier que les commandes Tauri restent de simples façades vers `kb_lib` et ne récupèrent pas de logique métier.
+- vérifier que les commandes Tauri restent de simples façades vers `kb_lib`.
 
-### 6.070. Version `0.7.x` — Couverture DEX v1
-Objectif : structurer les connecteurs DEX autour d’un pipeline complet de résolution, décodage et normalisation métier.
+### 6.074. Version `0.7.x` — Couverture DEX v1
+Objectif : structurer les connecteurs DEX autour d’un pipeline complet de résolution, décodage, normalisation métier et classification des événements non-trade.
 
-Protocoles cibles :
+Protocoles et surfaces cibles :
 
-- Pump.fun
-- PumpSwap
-- Raydium CPMM
-- Raydium CLMM
-- Meteora DBC
-- Meteora DAMM v2
-- Meteora DAMM v1
-- LaunchLab / Fun Launch
-- Bags
-- Moonit
-- Orca
-- FluxBeam
-- DexLab
-- Raydium AMM v4 legacy
+- Pump.fun,
+- PumpSwap,
+- Raydium CPMM,
+- Raydium CLMM,
+- Raydium LaunchLab / Launchpad,
+- Raydium AMM v4 legacy,
+- Meteora DBC,
+- Meteora DAMM v1,
+- Meteora DAMM v2,
+- Meteora DLMM,
+- Orca Whirlpools,
+- FluxBeam,
+- DexLab,
+- Bags,
+- LetsBonk / Bonk.fun,
+- Boop.fun,
+- Moonshot / Moonit,
+- Believe,
+- Heaven.
+
+Hors périmètre immédiat :
+
+- `zora_solana`, tant qu’aucun programme Solana pertinent et exploitable n’est prouvé.
 
 Résultat attendu :
 
 - identification fiable des programmes et versions,
 - résolution des signatures pertinentes,
 - décodage des transactions utiles,
-- création d’objets métier riches pour tokens, pools, paires, listings, participants et holdings observés,
+- conservation des transactions inconnues ou candidates sans perte d’information,
+- création d’objets métier riches pour tokens, pools, paires, listings, participants, origins et holdings observés,
+- distinction claire entre première source de mint, launch origin, pool origin, DEX effectif et migration target,
 - enrichissement metadata des tokens découverts,
-- séparation claire entre événements candle/trade et événements utiles seulement à l’analyse, aux frais, à la liquidité, aux rewards, à l’administration ou au cycle de vie des pools,
+- séparation stricte entre événements candle/trade et événements utiles seulement à l’analyse,
 - matérialisation progressive des événements non-trade dans des tables métier dédiées,
 - préparation d’une détection temps réel hybride et d’un backfill ciblé compatible avec les mêmes objets métier,
-- préparation d’agrégats DEX plus riches, de candles / OHLCV et d’une UI d’inspection du pipeline `0.7.x`.
+- préparation d’agrégats DEX plus riches, de candles/OHLCV et d’une UI d’inspection du pipeline `0.7.x`.
 
-### 6.071. Version `0.8.x` — Analyse et filtrage
+### 6.075. Version `0.8.x` — Analyse et filtrage
 Objectif : transformer les événements bruts en signaux exploitables.
 
 À faire :
@@ -935,7 +1032,7 @@ Objectif : transformer les événements bruts en signaux exploitables.
 - outils de sélection manuelle de points ABC et projection d’un point D selon des règles temps/prix explicites,
 - séparation stricte entre signaux analytiques observés, projections hypothétiques et décisions de trading.
 
-### 6.072. Version `1.x.y` — Wallets et swap préparatoire
+### 6.076. Version `1.x.y` — Wallets et swap préparatoire
 Objectif : préparer la couche d’action.
 
 À faire :
@@ -946,7 +1043,7 @@ Objectif : préparer la couche d’action.
 - préparation d’ordres et de swaps,
 - simulation et garde-fous.
 
-### 6.073. Version `2.x.y` — Trading semi-automatisé
+### 6.077. Version `2.x.y` — Trading semi-automatisé
 Objectif : brancher l’analyse à l’action tout en gardant des garde-fous explicites.
 
 À faire :
@@ -957,7 +1054,7 @@ Objectif : brancher l’analyse à l’action tout en gardant des garde-fous exp
 - confirmations explicites ou semi-automatiques,
 - journaux d’exécution.
 
-### 6.074. Version `3.x.y` — Yellowstone gRPC
+### 6.078. Version `3.x.y` — Yellowstone gRPC
 Objectif : ajouter le connecteur gRPC dédié.
 
 À faire :
@@ -970,41 +1067,59 @@ Objectif : ajouter le connecteur gRPC dédié.
 ## 7. Organisation des modules ciblés
 
 ### 7.1. `kb_lib`
-Modules cibles à court terme :
+Modules stables à ne pas remanier dans la phase immédiate :
 
-- `error.rs`
-- `config.rs`
-- `tracing.rs`
-- `constants.rs`
-- `types.rs`
 - `ws_client.rs`
 - `ws_manager.rs`
 - `http_client.rs`
 - `http_pool.rs`
 - `json_rpc_ws.rs`
 - `solana_pubsub_ws.rs`
-- `detect.rs`
+
+Modules ciblés par le refactor et la consolidation DEX :
+
+- `dex.rs`
+- `dex/*.rs`
 - `dex_decode.rs`
 - `dex_detect.rs`
 - `trade_aggregation.rs`
 - `pair_candle_aggregation.rs`
 - `pair_analytic_signal.rs`
+- `launch_origin.rs`
+- `pool_origin.rs`
+- `wallet_observation.rs`
+- `wallet_holding_observation.rs`
 - `token_metadata.rs`
 - `local_pipeline_replay.rs`
+- `local_pipeline_validation.rs`
 - `local_pipeline_diagnostics.rs`
-- `db/entities/*`
-- `db/dtos/*`
-- `db/queries/*`
 
-### 7.2. `kb_demo_app`
+`local_pipeline_diagnostics.rs` est volontairement conservé comme outil temporaire de validation. Il pourra devenir obsolète ou être remplacé lorsque les tests DEX seront stabilisés. Il n’est pas prioritaire de le refactorer maintenant.
+
+### 7.2. Base de données
+
+Organisation de la couche DB à conserver :
+
+- `db/schema.rs` : création des tables et index uniquement ; chaque table ou index reste dans une fonction dédiée,
+- `db/entities/*` : entités proches des lignes persistées,
+- `db/dtos/*` : DTOs applicatifs,
+- `db/queries/*` : requêtes SQL regroupées par table ou usage,
+- `db/queries/local_pipeline_diagnostics.rs` : requêtes de diagnostic local, utiles pendant la validation DEX.
+
+`schema.rs` peut rester long tant qu’il reste strictement un fichier de schéma. Le split prioritaire concerne plutôt les responsabilités métier dans `dex_decode.rs`, `dex_detect.rs` et `trade_aggregation.rs`.
+
+### 7.3. `kb_demo_app`
 Responsabilités cibles :
 
 - lancement Tauri,
 - commandes UI,
 - affichage des états et messages,
 - réception des événements venant de `kb_lib`,
-- persistance future des préférences UI,
-- fenêtres de démonstration / diagnostic isolées.
+- fenêtres de démonstration / diagnostic isolées,
+- inspection du pipeline persisté,
+- affichage candles et futurs overlays analytiques.
+
+`kb_demo_app` ne doit pas contenir de logique métier DEX profonde.
 
 ## 8. Ligne de conduite sur le `WsClient`
 Le `WsClient` doit être conçu en plusieurs couches :
@@ -1048,7 +1163,7 @@ Le projet doit maintenir au minimum :
 - un `README.md` global,
 - un `ROADMAP.md` global,
 - un `CHANGELOG.md` global,
-- des `README.md` et `TODO.md` par crate à mesure de l’évolution,
+- des `README.md` et `TODO.md` par crate à mesure de l’évolution (surtout en version 1.0),
 - des tests unitaires robustes,
 - les bindings TS générés via `cargo test export_bindings` lorsque les types partagés évoluent.
 
@@ -1056,16 +1171,21 @@ Le projet doit maintenir au minimum :
 
 La priorité immédiate est désormais la suivante :
 
-1. terminer la validation `0.7.27` sur les connecteurs déjà branchés : `pump_fun`, `pump_swap`, `raydium_cpmm` et `raydium_clmm`, sans ajouter de nouveau DEX dans cette étape,
+1. terminer la validation `0.7.27` sur `pump_fun`, `pump_swap`, `raydium_cpmm` et `raydium_clmm`, sans ajouter de nouveau DEX dans cette étape,
 2. vérifier sur bases neuves et après replay local les invariants bloquants du pipeline : `diagnosticsClean = true`, `blockingIssueCount = 0`, aucun trade candidate exploitable perdu, aucun trade event invalide, aucun doublon réel par `decoded_event_id`, aucune candle dupliquée par bucket,
-3. documenter les requêtes SQL de diagnostic de référence et les résultats attendus pour les tables clés du pipeline,
-4. matérialiser ensuite les événements non buy/sell utiles au trading et à l’analyse : liquidité, cycle de vie des pools, fees, rewards et administration,
-5. garantir que ces événements non-trade restent séparés des `k_sol_trade_events` et des candles tout en restant rattachés aux transactions, decoded events, pools, pairs et wallets observés,
-6. ajouter ou stabiliser les autres DEX par lots vérifiables : Meteora, surfaces de lancement, Orca, FluxBeam et DexLab,
-7. traiter `raydium_amm_v4` legacy seulement après les autres DEX, avec un corpus dédié prouvant le programme `675kPX9MHTjS2zt1qfr1NYHuzeLXfQM9H24wFSUt1Mp8`,
-8. effectuer une validation DEX v1 consolidée sur tous les connecteurs supportés avant de considérer la couche DEX `0.7.x` comme stable,
-9. ajouter ensuite les overlays des signaux analytiques sur les candles,
-10. consolider les vues métier `token / pair / pool` dans `kb_demo_app`, y compris les événements liquidité, lifecycle, fees, rewards et admin,
-11. stabiliser l’ergonomie, les filtres, la pagination et la navigation de l’UI d’inspection,
-12. préparer ensuite l’ouverture de `0.8.x` pour l’analyse, les filtres, les patterns et les projections graphiques,
-13. préparer enfin Yellowstone gRPC comme extension de capacité, et non comme remplacement du socle HTTP / WS existant.
+3. démarrer `0.7.28` par le refactor DEX commun, sans toucher aux clients HTTP/WS ni aux managers réseau stabilisés,
+4. ajouter la matrice DEX et launch surfaces, avec statut, corpus, limites et prochaine action pour chaque protocole,
+5. ajouter les tables de classification des transactions inconnues et des protocol candidates afin de ne plus perdre les transactions utiles non encore décodables,
+6. matérialiser ensuite les événements non-trade : liquidité, cycle de vie des pools, fees, rewards et administration,
+7. garantir que ces événements non-trade restent séparés des `k_sol_trade_events` et des candles tout en restant rattachés aux transactions, decoded events, pools, pairs et wallets observés,
+8. consolider Meteora, y compris `meteora_dlmm`, après corpus fiable,
+9. ajouter les launch surfaces manquantes comme premières sources de mint/lancement : Raydium LaunchLab/Launchpad, LetsBonk/Bonk.fun, Boop.fun, Moonshot/Moonit, Believe et Bags,
+10. traiter Heaven avec séparation launch/swap,
+11. consolider Orca, FluxBeam et DexLab sur corpus,
+12. traiter `raydium_amm_v4` legacy seulement après les autres Raydium, avec corpus dédié prouvant le programme `675kPX9MHTjS2zt1qfr1NYHuzeLXfQM9H24wFSUt1Mp8`,
+13. effectuer une validation DEX v1 consolidée sur tous les connecteurs supportés avant de considérer la couche DEX `0.7.x` comme stable,
+14. ajouter ensuite les overlays des signaux analytiques sur les candles,
+15. consolider les vues métier `token / pair / pool` dans `kb_demo_app`, y compris les événements liquidité, lifecycle, fees, rewards et admin,
+16. stabiliser l’ergonomie, les filtres, la pagination et la navigation de l’UI d’inspection,
+17. préparer ensuite l’ouverture de `0.8.x` pour l’analyse, les filtres, les patterns et les projections graphiques,
+18. préparer enfin Yellowstone gRPC comme extension de capacité, et non comme remplacement du socle HTTP / WS existant.
diff --git a/kb_demo_app/frontend/demo_pipeline2.html b/kb_demo_app/frontend/demo_pipeline2.html
index 2f9d7ff..a8f3a01 100644
--- a/kb_demo_app/frontend/demo_pipeline2.html
+++ b/kb_demo_app/frontend/demo_pipeline2.html
@@ -29,11 +29,11 @@
                             <div class="accordion" id="demoPipeline2LeftAccordion">
                                 <div class="accordion-item border-0 shadow-sm mb-3">
                                     <h1 class="accordion-header" id="demoPipeline2CatalogHeading">
-                                        <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#demoPipeline2CatalogCollapse" aria-expanded="true" aria-controls="demoPipeline2CatalogCollapse">
+                                        <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#demoPipeline2CatalogCollapse" aria-expanded="false" aria-controls="demoPipeline2CatalogCollapse">
                                             Catalogue local
                                         </button>
                                     </h1>
-                                    <div id="demoPipeline2CatalogCollapse" class="accordion-collapse collapse show" aria-labelledby="demoPipeline2CatalogHeading" data-bs-parent="#demoPipeline2LeftAccordion">
+                                    <div id="demoPipeline2CatalogCollapse" class="accordion-collapse collapse" aria-labelledby="demoPipeline2CatalogHeading" data-bs-parent="#demoPipeline2LeftAccordion">
                                         <div class="accordion-body">
                                             <div class="d-flex gap-2 mb-3">
                                                 <button id="demoPipeline2RefreshCatalogButton" type="button" class="btn btn-primary">
@@ -175,6 +175,32 @@
                                     </div>
                                 </div>
 
+                                <div class="accordion-item border-0 shadow-sm mb-3">
+                                    <h2 class="accordion-header" id="demoPipeline2ProtocolCandidatesHeading">
+                                        <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#demoPipeline2ProtocolCandidatesCollapse" aria-expanded="false" aria-controls="demoPipeline2ProtocolCandidatesCollapse">
+                                            Protocol candidates
+                                        </button>
+                                    </h2>
+                                    <div id="demoPipeline2ProtocolCandidatesCollapse" class="accordion-collapse collapse" aria-labelledby="demoPipeline2ProtocolCandidatesHeading" data-bs-parent="#demoPipeline2LeftAccordion">
+                                        <div class="accordion-body">
+                                            <p class="small text-body-secondary mb-3">
+                                                Résume les programmes candidats par priorité : transaction_count, occurrence_count, dernier slot et dernière signature.
+                                            </p>
+
+                                            <div class="mb-3">
+                                                <label for="demoPipeline2ProtocolCandidateLimitInput" class="form-label">Summary limit</label>
+                                                <input id="demoPipeline2ProtocolCandidateLimitInput" type="number" min="1" step="1" class="form-control" value="50" />
+                                            </div>
+
+                                            <div class="d-flex gap-2">
+                                                <button id="demoPipeline2RefreshProtocolCandidatesButton" type="button" class="btn btn-outline-warning">
+                                                    Refresh protocol candidates
+                                                </button>
+                                            </div>
+                                        </div>
+                                    </div>
+                                </div>
+
                                 <div class="accordion-item border-0 shadow-sm">
                                     <h2 class="accordion-header" id="demoPipeline2CandlesControlHeading">
                                         <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#demoPipeline2CandlesControlCollapse" aria-expanded="false" aria-controls="demoPipeline2CandlesControlCollapse">
@@ -265,13 +291,26 @@
                                     </div>
                                 </div>
 
+                                <div class="accordion-item border-0 shadow-sm mb-3">
+                                    <h2 class="accordion-header" id="demoPipeline2ProtocolCandidateSummaryHeading">
+                                        <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#demoPipeline2ProtocolCandidateSummaryCollapse" aria-expanded="false" aria-controls="demoPipeline2ProtocolCandidateSummaryCollapse">
+                                            Protocol candidate summaries
+                                        </button>
+                                    </h2>
+                                    <div id="demoPipeline2ProtocolCandidateSummaryCollapse" class="accordion-collapse collapse" aria-labelledby="demoPipeline2ProtocolCandidateSummaryHeading" data-bs-parent="#demoPipeline2ContentAccordion">
+                                        <div class="accordion-body">
+                                            <textarea id="demoPipeline2ProtocolCandidateSummariesTextarea" class="form-control font-monospace" rows="16" readonly spellcheck="false"></textarea>
+                                        </div>
+                                    </div>
+                                </div>
+
                                 <div class="accordion-item border-0 shadow-sm mb-3">
                                     <h2 class="accordion-header" id="demoPipeline2ChartHeading">
-                                        <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#demoPipeline2ChartCollapse" aria-expanded="true" aria-controls="demoPipeline2ChartCollapse">
+                                        <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#demoPipeline2ChartCollapse" aria-expanded="false" aria-controls="demoPipeline2ChartCollapse">
                                             Candles / OHLCV
                                         </button>
                                     </h2>
-                                    <div id="demoPipeline2ChartCollapse" class="accordion-collapse collapse show" aria-labelledby="demoPipeline2ChartHeading" data-bs-parent="#demoPipeline2ContentAccordion">
+                                    <div id="demoPipeline2ChartCollapse" class="accordion-collapse collapse" aria-labelledby="demoPipeline2ChartHeading" data-bs-parent="#demoPipeline2ContentAccordion">
                                         <div class="accordion-body">
                                             <div class="d-flex flex-wrap justify-content-between align-items-center gap-3 mb-3">
                                                 <div id="demoPipeline2ChartMeta" class="small text-body-secondary">
diff --git a/kb_demo_app/frontend/ts/bindings/DemoPipeline2ProtocolCandidateSummaryPayload.ts b/kb_demo_app/frontend/ts/bindings/DemoPipeline2ProtocolCandidateSummaryPayload.ts
new file mode 100644
index 0000000..9a73c0c
--- /dev/null
+++ b/kb_demo_app/frontend/ts/bindings/DemoPipeline2ProtocolCandidateSummaryPayload.ts
@@ -0,0 +1,10 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Response payload for protocol candidate summary diagnostics.
+ */
+export type DemoPipeline2ProtocolCandidateSummaryPayload = { 
+/**
+ * Pretty JSON summary rows.
+ */
+summariesJson: string, };
diff --git a/kb_demo_app/frontend/ts/bindings/DemoPipeline2ProtocolCandidateSummaryRequest.ts b/kb_demo_app/frontend/ts/bindings/DemoPipeline2ProtocolCandidateSummaryRequest.ts
new file mode 100644
index 0000000..2c1a802
--- /dev/null
+++ b/kb_demo_app/frontend/ts/bindings/DemoPipeline2ProtocolCandidateSummaryRequest.ts
@@ -0,0 +1,10 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Request payload for protocol candidate summary diagnostics.
+ */
+export type DemoPipeline2ProtocolCandidateSummaryRequest = { 
+/**
+ * Maximum number of summary rows to return.
+ */
+limit: number, };
diff --git a/kb_demo_app/frontend/ts/demo_pipeline2.ts b/kb_demo_app/frontend/ts/demo_pipeline2.ts
index a961997..9e5ab3c 100644
--- a/kb_demo_app/frontend/ts/demo_pipeline2.ts
+++ b/kb_demo_app/frontend/ts/demo_pipeline2.ts
@@ -15,6 +15,8 @@ import type { DemoPipeline2PairCandlesRequest } from "./bindings/DemoPipeline2Pa
 import type { DemoPipeline2PairCandlesPayload } from "./bindings/DemoPipeline2PairCandlesPayload.ts";
 import type { DemoPipeline2LocalDiagnosticsPayload } from "./bindings/DemoPipeline2LocalDiagnosticsPayload.ts";
 import type { DemoPipeline2LocalValidationPayload } from "./bindings/DemoPipeline2LocalValidationPayload.ts";
+import { DemoPipeline2ProtocolCandidateSummaryRequest } from './bindings/DemoPipeline2ProtocolCandidateSummaryRequest.ts';
+import { DemoPipeline2ProtocolCandidateSummaryPayload } from './bindings/DemoPipeline2ProtocolCandidateSummaryPayload.ts';
 
 (window as Window & typeof globalThis & { bootstrap?: typeof bootstrap }).bootstrap = bootstrap;
 (window as Window & typeof globalThis & { ResizeObserver?: typeof ResizeObserver }).ResizeObserver = ResizeObserver;
@@ -354,6 +356,9 @@ document.addEventListener("DOMContentLoaded", async () => {
     const diagnoseLocalPipelineButton = document.querySelector<HTMLButtonElement>("#demoPipeline2DiagnoseLocalPipelineButton");
     const validateLocalPipelineButton = document.querySelector<HTMLButtonElement>("#demoPipeline2ValidateLocalPipelineButton");
 
+    const protocolCandidateLimitInput = document.querySelector<HTMLInputElement>("#demoPipeline2ProtocolCandidateLimitInput");
+    const refreshProtocolCandidatesButton = document.querySelector<HTMLButtonElement>("#demoPipeline2RefreshProtocolCandidatesButton");
+
     const pairSelect = document.querySelector<HTMLSelectElement>("#demoPipeline2PairSelect");
     const timeframeSelect = document.querySelector<HTMLSelectElement>("#demoPipeline2TimeframeSelect");
     const customTimeframeInput = document.querySelector<HTMLInputElement>("#demoPipeline2CustomTimeframeInput");
@@ -366,6 +371,8 @@ document.addEventListener("DOMContentLoaded", async () => {
     const localDiagnosticsTextarea = document.querySelector<HTMLTextAreaElement>("#demoPipeline2LocalDiagnosticsTextarea");
     const localValidationTextarea = document.querySelector<HTMLTextAreaElement>("#demoPipeline2LocalValidationTextarea");
 
+    const protocolCandidateSummariesTextarea = document.querySelector<HTMLTextAreaElement>("#demoPipeline2ProtocolCandidateSummariesTextarea");
+
     const clearLogButton = document.querySelector<HTMLButtonElement>("#demoPipeline2ClearLogButton");
     const logTextarea = document.querySelector<HTMLTextAreaElement>("#demoPipeline2LogTextarea");
 
@@ -388,6 +395,8 @@ document.addEventListener("DOMContentLoaded", async () => {
         !replayLocalPipelineButton ||
         !diagnoseLocalPipelineButton ||
         !validateLocalPipelineButton ||
+        !protocolCandidateLimitInput ||
+        !refreshProtocolCandidatesButton ||
         !pairSelect ||
         !timeframeSelect ||
         !customTimeframeInput ||
@@ -396,6 +405,7 @@ document.addEventListener("DOMContentLoaded", async () => {
         !backfillSummaryTextarea ||
         !localDiagnosticsTextarea ||
         !localValidationTextarea ||
+        !protocolCandidateSummariesTextarea ||
         !chartElement ||
         !chartMeta ||
         !clearLogButton ||
@@ -644,6 +654,45 @@ document.addEventListener("DOMContentLoaded", async () => {
         }
     });
 
+    refreshProtocolCandidatesButton.addEventListener("click", async () => {
+        const limit = readPositiveIntegerInput(
+            protocolCandidateLimitInput,
+            logTextarea,
+            "protocolCandidateSummaryLimit",
+        );
+        if (limit === undefined) {
+            return;
+        }
+
+        appendLogLine(
+            logTextarea,
+            `[ui] loading protocol candidate summaries with limit '${limit.toString()}'`,
+        );
+
+        const request: DemoPipeline2ProtocolCandidateSummaryRequest = {
+            limit,
+        };
+
+        try {
+            const payload = await invoke<DemoPipeline2ProtocolCandidateSummaryPayload>(
+                "demo_pipeline2_get_protocol_candidate_summaries",
+                { request },
+            );
+
+            protocolCandidateSummariesTextarea.value = payload.summariesJson;
+
+            appendLogLine(
+                logTextarea,
+                "[ui] protocol candidate summaries loaded",
+            );
+        } catch (error) {
+            appendLogLine(
+                logTextarea,
+                `[ui] protocol candidate summary error: ${String(error)}`,
+            );
+        }
+    });
+
     loadCandlesButton.addEventListener("click", async () => {
         const pairIdText = pairSelect.value.trim();
         if (pairIdText === "") {
diff --git a/kb_demo_app/package.json b/kb_demo_app/package.json
index d3e1010..c106621 100644
--- a/kb_demo_app/package.json
+++ b/kb_demo_app/package.json
@@ -1,7 +1,7 @@
 {
     "name": "kb-demo-app",
     "private": true,
-    "version": "0.7.27",
+    "version": "0.7.28",
     "type": "module",
     "scripts": {
         "dev": "vite",
diff --git a/kb_demo_app/src/demo_pipeline2.rs b/kb_demo_app/src/demo_pipeline2.rs
index 74e6380..d3f2083 100644
--- a/kb_demo_app/src/demo_pipeline2.rs
+++ b/kb_demo_app/src/demo_pipeline2.rs
@@ -10,6 +10,34 @@
 use tauri::Manager;
 use ts_rs::TS;
 
+
+/// Request payload for protocol candidate summary diagnostics.
+#[derive(Clone, Debug, serde::Deserialize, ts_rs::TS)]
+#[ts(
+    export,
+    export_to = "../frontend/ts/bindings/DemoPipeline2ProtocolCandidateSummaryRequest.ts"
+)]
+#[serde(rename_all = "camelCase")]
+pub(crate) struct DemoPipeline2ProtocolCandidateSummaryRequest {
+    /// Maximum number of summary rows to return.
+    pub limit: u32,
+}
+
+/// Response payload for protocol candidate summary diagnostics.
+#[derive(Clone, Debug, serde::Serialize, ts_rs::TS)]
+#[ts(
+    export,
+    export_to = "../frontend/ts/bindings/DemoPipeline2ProtocolCandidateSummaryPayload.ts"
+)]
+#[serde(rename_all = "camelCase")]
+pub(crate) struct DemoPipeline2ProtocolCandidateSummaryPayload {
+    /// Pretty JSON summary rows.
+    pub summaries_json: std::string::String,
+}
+
+
+
+
 /// Local diagnostics payload returned to the UI.
 #[derive(Clone, Debug, serde::Serialize, TS)]
 #[ts(
@@ -690,6 +718,42 @@ pub(crate) struct DemoPipeline2PairCandlesPayload {
     pub candles_json: std::string::String,
 }
 
+/// Lists protocol candidate summaries ordered by investigation priority.
+#[tauri::command]
+pub(crate) async fn demo_pipeline2_get_protocol_candidate_summaries(
+    state: tauri::State<'_, crate::AppState>,
+    request: DemoPipeline2ProtocolCandidateSummaryRequest,
+) -> Result<DemoPipeline2ProtocolCandidateSummaryPayload, std::string::String> {
+    if request.limit == 0 {
+        return Err("protocol candidate summary limit must be > 0".to_string());
+    }
+    let summaries_result = kb_lib::query_protocol_candidate_summaries_list_by_priority(
+        state.database.as_ref(),
+        request.limit,
+    )
+    .await;
+    let summaries = match summaries_result {
+        Ok(summaries) => summaries,
+        Err(error) => {
+            return Err(format!(
+                "cannot list protocol candidate summaries with limit '{}': {}",
+                request.limit, error
+            ));
+        },
+    };
+    let summaries_json_result = serde_json::to_string_pretty(&summaries);
+    let summaries_json = match summaries_json_result {
+        Ok(summaries_json) => summaries_json,
+        Err(error) => {
+            return Err(format!(
+                "cannot serialize protocol candidate summaries: {}",
+                error
+            ));
+        },
+    };
+    return Ok(DemoPipeline2ProtocolCandidateSummaryPayload { summaries_json });
+}
+
 /// Runs local pipeline diagnostics from persisted data only.
 #[tauri::command]
 pub(crate) async fn demo_pipeline2_diagnose_local_pipeline(
diff --git a/kb_demo_app/src/lib.rs b/kb_demo_app/src/lib.rs
index 02d9c23..45d151d 100644
--- a/kb_demo_app/src/lib.rs
+++ b/kb_demo_app/src/lib.rs
@@ -153,6 +153,7 @@ pub async fn run() -> Result<(), kb_lib::Error> {
         crate::demo_pipeline2::demo_pipeline2_replay_local_pipeline,
         crate::demo_pipeline2::demo_pipeline2_diagnose_local_pipeline,
         crate::demo_pipeline2::demo_pipeline2_validate_local_pipeline,
+        crate::demo_pipeline2::demo_pipeline2_get_protocol_candidate_summaries,
     ]);
     tauri_builder = tauri_builder.plugin(tracing_builder.build::<tauri::Wry>());
     tauri_builder = tauri_builder.setup(|app| {
diff --git a/kb_demo_app/tauri.conf.json b/kb_demo_app/tauri.conf.json
index 048d32c..5e77a71 100644
--- a/kb_demo_app/tauri.conf.json
+++ b/kb_demo_app/tauri.conf.json
@@ -1,7 +1,7 @@
 {
     "$schema": "https://schema.tauri.app/config/2",
     "productName": "kb-demo-app",
-    "version": "0.7.27",
+    "version": "0.7.28",
     "identifier": "com.sasedev.kb-demo-app",
     "build": {
         "beforeDevCommand": "npm run dev",
diff --git a/kb_lib/src/constants.rs b/kb_lib/src/constants.rs
index 3c4aab2..7e686df 100644
--- a/kb_lib/src/constants.rs
+++ b/kb_lib/src/constants.rs
@@ -14,17 +14,134 @@ pub const SPL_TOKEN_2022_PROGRAM_ID: &str = "TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqC
 /// @see solana_sdk::pubkey::Pubkey = spl_associated_token_account_interface::program::ID
 pub const ASSOCIATED_TOKEN_PROGRAM_ID: &str = "ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL";
 
-/// Wrapped SOL mint identifier. ("So11111111111111111111111111111111111111112").
-/// @see solana_sdk::pubkey::Pubkey = spl_token_interface::native_mint::ID
-pub const WSOL_MINT_ID: &str = "So11111111111111111111111111111111111111112";
+/// Address Lookup Table program identifier. ("AddressLookupTab1e1111111111111111111111111").
+/// @see solana_sdk_ids::address_lookup_table::ID
+pub const ADDRESS_LOOKUP_TABLE_PROGRAM_ID: &str = "AddressLookupTab1e1111111111111111111111111";
+
+/// BPF Loader program identifier. ("BPFLoader1111111111111111111111111111111111").
+/// @see solana_sdk_ids::bpf_loader_deprecated::ID
+pub const BPF_LOADER_DEPRECATED_PROGRAM_ID: &str = "BPFLoader1111111111111111111111111111111111";
+
+/// BPF Loader program identifier. ("BPFLoaderUpgradeab1e11111111111111111111111").
+/// @see solana_sdk_ids::bpf_loader_upgradeable::ID
+pub const BPF_LOADER_UPGRADEABLE_PROGRAM_ID: &str = "BPFLoaderUpgradeab1e11111111111111111111111";
+
+/// Compute Budget program identifier. ("ComputeBudget111111111111111111111111111111").
+/// @see solana_sdk_ids::compute_budget::ID
+pub const COMPUTE_BUDGET_PROGRAM_ID: &str = "ComputeBudget111111111111111111111111111111";
+
+/// Config program identifier. ("Config1111111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey =  solana_sdk_ids::config::ID
+pub const CONFIG_PROGRAM_ID: &str = "Config1111111111111111111111111111111111111";
+
+/// ED25519 program identifier. ("Ed25519SigVerify111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey =  solana_sdk_ids::ed25519_program::ID
+pub const ED25519_PROGRAM_ID: &str = "Ed25519SigVerify111111111111111111111111111";
+
+/// Feature program identifier. ("Feature111111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey =  solana_sdk_ids::feature::ID
+pub const FEATURE_PROGRAM_ID: &str = "Feature111111111111111111111111111111111111";
+
+/// Incinerator program identifier. ("1nc1nerator11111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::incinerator::ID
+pub const INCINERATOR_PROGRAM_ID: &str = "1nc1nerator11111111111111111111111111111111";
+
+/// Loader V4 program identifier. ("LoaderV411111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::loader_v4::ID
+pub const LOADER_V4_PROGRAM_ID: &str = "LoaderV411111111111111111111111111111111111";
+
+/// Native Loader program identifier. ("NativeLoader1111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::native_loader::ID
+pub const NATIVE_LOADER_PROGRAM_ID: &str = "NativeLoader1111111111111111111111111111111";
+
+/// Secp256k1 program identifier. ("KeccakSecp256k11111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::secp256k1_program::ID
+pub const SECP256K1_PROGRAM_ID: &str = "KeccakSecp256k11111111111111111111111111111";
+
+/// Secp256r1 program identifier. ("Secp256r1SigVerify1111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::secp256r1_program::ID
+pub const SECP256R1_PROGRAM_ID: &str = "Secp256r1SigVerify1111111111111111111111111";
+
+/// Stake program identifier. ("Stake11111111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::stake::ID
+pub const STAKE_PROGRAM_ID: &str = "Stake11111111111111111111111111111111111111";
+
+/// Stake Config program identifier. ("StakeConfig11111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::stake::config::ID
+pub const STAKE_CONFIG_PROGRAM_ID: &str = "StakeConfig11111111111111111111111111111111";
 
 /// System program identifier. ("11111111111111111111111111111111").
 /// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::system_program::ID
 pub const SYSTEM_PROGRAM_ID: &str = "11111111111111111111111111111111";
 
-/// Compute Budget program identifier. ("ComputeBudget111111111111111111111111111111").
-/// @see solana_sdk_ids::compute_budget::ID
-pub const COMPUTE_BUDGET_PROGRAM_ID: &str = "ComputeBudget111111111111111111111111111111";
+/// Vote program identifier. ("Vote111111111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::vote::ID
+pub const VOTE_PROGRAM_ID: &str = "Vote111111111111111111111111111111111111111";
+
+/// Sysvar program identifier. ("Sysvar1111111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::ID
+pub const SYSVAR_PROGRAM_ID: &str = "Sysvar1111111111111111111111111111111111111";
+
+/// Sysvar Clock program identifier. ("SysvarC1ock11111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::clock::ID
+pub const SYSVAR_CLOCK_PROGRAM_ID: &str = "SysvarC1ock11111111111111111111111111111111";
+
+/// Sysvar Epoch Rewards program identifier. ("SysvarEpochRewards1111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::epoch_rewards::ID
+pub const SYSVAR_EPOCH_REWARDS_PROGRAM_ID: &str = "SysvarEpochRewards1111111111111111111111111";
+
+/// Sysvar Epoch Schedule program identifier. ("SysvarEpochSchedu1e111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::epoch_schedule::ID
+pub const SYSVAR_EPOCH_SCHEDULE_PROGRAM_ID: &str = "SysvarEpochSchedu1e111111111111111111111111";
+
+/// Sysvar Fees program identifier. ("SysvarFees111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::fees::ID
+pub const SYSVAR_FEES_PROGRAM_ID: &str = "SysvarFees111111111111111111111111111111111";
+
+/// Sysvar Instructions program identifier. ("Sysvar1nstructions1111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::instructions::ID
+pub const SYSVAR_INSTRUCTIONS_PROGRAM_ID: &str = "Sysvar1nstructions1111111111111111111111111";
+
+/// Sysvar Last Restart Slot program identifier. ("SysvarLastRestartS1ot1111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::last_restart_slot::ID
+pub const SYSVAR_LAST_RESTART_SLOT_PROGRAM_ID: &str = "SysvarLastRestartS1ot1111111111111111111111";
+
+/// Sysvar Recent Blockhashes program identifier. ("SysvarRecentB1ockHashes11111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::recent_blockhashes::ID
+pub const SYSVAR_RECENT_BLOCKHASHES_PROGRAM_ID: &str =
+    "SysvarRecentB1ockHashes11111111111111111111";
+
+/// Sysvar Rent program identifier. ("SysvarRent111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::rent::ID
+pub const SYSVAR_RENT_PROGRAM_ID: &str = "SysvarRent111111111111111111111111111111111";
+
+/// Sysvar Rewards program identifier. ("SysvarRewards111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::rewards::ID
+pub const SYSVAR_REWARDS_PROGRAM_ID: &str = "SysvarRewards111111111111111111111111111111";
+
+/// Sysvar Slot Hashes program identifier. ("SysvarS1otHashes111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::slot_hashes::ID
+pub const SYSVAR_SLOT_HASHES_PROGRAM_ID: &str = "SysvarS1otHashes111111111111111111111111111";
+
+/// Sysvar Slot History program identifier. ("SysvarS1otHistory11111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::slot_history::ID
+pub const SYSVAR_SLOT_HISTORY_PROGRAM_ID: &str = "SysvarS1otHistory11111111111111111111111111";
+
+/// Sysvar Stake History program identifier. ("SysvarStakeHistory1111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::stake_history::ID
+pub const SYSVAR_STAKE_HISTORY_PROGRAM_ID: &str = "SysvarStakeHistory1111111111111111111111111";
+
+/// Zk Token Proof program identifier. ("ZkTokenProof1111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::zk_token_proof_program::ID
+pub const ZK_TOKEN_PROOF_PROGRAM_ID: &str = "ZkTokenProof1111111111111111111111111111111";
+
+/// Zk El Gamal Proof program identifier. ("ZkE1Gama1Proof11111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::zk_elgamal_proof_program::ID
+pub const ZK_ELGAMAL_PROOF_PROGRAM_ID: &str = "ZkE1Gama1Proof11111111111111111111111111111";
+
+/// Wrapped SOL mint identifier. ("So11111111111111111111111111111111111111112").
+/// @see solana_sdk::pubkey::Pubkey = spl_token_interface::native_mint::ID
+pub const WSOL_MINT_ID: &str = "So11111111111111111111111111111111111111112";
 
 /// DexLab Swap/Pool program id. ("DSwpgjMvXhtGn6BsbqmacdBZyfLj6jSWf3HJpdJtmg6N").
 pub const DEXLAB_PROGRAM_ID: &str = "DSwpgjMvXhtGn6BsbqmacdBZyfLj6jSWf3HJpdJtmg6N";
@@ -41,6 +158,11 @@ pub const METEORA_DAMM_V2_PROGRAM_ID: &str = "cpamdpZCGKUy5JxQXB4dcpGPiikHawvSWA
 /// Meteora DBC program id. ("dbcij3LWUppWqq96dh6gJWwBifmcGfLSB5D4DuSMaqN").
 pub const METEORA_DBC_PROGRAM_ID: &str = "dbcij3LWUppWqq96dh6gJWwBifmcGfLSB5D4DuSMaqN";
 
+/// Meteora DLMM program id. ("LBUZKhRxPF3XUpBCjp4YzTKgLccjZhTSDM9YuVaPwxo").
+///
+/// DLMM = Dynamic Liquidity Market Maker.
+pub const METEORA_DLMM_PROGRAM_ID: &str = "LBUZKhRxPF3XUpBCjp4YzTKgLccjZhTSDM9YuVaPwxo";
+
 /// Orca Whirlpools program id. ("whirLbMiicVdio4qvUfM5KAg6Ct8VwpYzGff3uctyCc").
 pub const ORCA_WHIRLPOOLS_PROGRAM_ID: &str = "whirLbMiicVdio4qvUfM5KAg6Ct8VwpYzGff3uctyCc";
 
@@ -58,3 +180,18 @@ pub const RAYDIUM_CLMM_PROGRAM_ID: &str = "CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7gr
 
 /// Raydium CPMM mainnet program id. ("CPMMoo8L3F4NbTegBCKVNunggL7H1ZpdTHKxQB5qKP1C").
 pub const RAYDIUM_CPMM_PROGRAM_ID: &str = "CPMMoo8L3F4NbTegBCKVNunggL7H1ZpdTHKxQB5qKP1C";
+
+/// Raydium LaunchLab program id. ("LanMV9sAd7wArD4vJFi2qDdfnVhFxYSUg6eADduJ3uj").
+pub const RAYDIUM_LAUNCHLAB_PROGRAM_ID: &str = "LanMV9sAd7wArD4vJFi2qDdfnVhFxYSUg6eADduJ3uj";
+
+/// Raydium AMM routing program id. ("routeUGWgWzqBWFcrCfv8tritsqukccJPu3q5GPP3xS").
+pub const RAYDIUM_AMM_ROUTING_PROGRAM_ID: &str = "routeUGWgWzqBWFcrCfv8tritsqukccJPu3q5GPP3xS";
+
+/// Raydium Stable Swap AMM program id, deprecated. ("5quBtoiQqxF9Jv6KYKctB59NT3gtJD2Y65kdnB1Uev3h").
+pub const RAYDIUM_STABLE_SWAP_AMM_PROGRAM_ID: &str = "5quBtoiQqxF9Jv6KYKctB59NT3gtJD2Y65kdnB1Uev3h";
+
+/// Known Solana arbitrage/sandwich bot program id observed in local corpus.
+///
+/// This is not treated as a DEX program. It is used only to tag protocol
+/// candidates with `candidate_surface = "arbitrage_bot"`.
+pub const ARBITRAGE_BOT_6MWVT_PROGRAM_ID: &str = "6MWVTis8rmmk6Vt9zmAJJbmb3VuLpzoQ1aHH4N6wQEGh";
diff --git a/kb_lib/src/db.rs b/kb_lib/src/db.rs
index e2e7b94..b68063a 100644
--- a/kb_lib/src/db.rs
+++ b/kb_lib/src/db.rs
@@ -50,11 +50,14 @@ pub use dtos::PoolDto;
 pub use dtos::PoolListingDto;
 pub use dtos::PoolOriginDto;
 pub use dtos::PoolTokenDto;
+pub use dtos::ProtocolCandidateDto;
+pub use dtos::ProtocolCandidateSummaryDto;
 pub use dtos::SwapDto;
 pub use dtos::TokenBurnEventDto;
 pub use dtos::TokenDto;
 pub use dtos::TokenMintEventDto;
 pub use dtos::TradeEventDto;
+pub use dtos::TransactionClassificationDto;
 pub use dtos::WalletDto;
 pub use dtos::WalletHoldingDto;
 pub use dtos::WalletParticipationDto;
@@ -82,11 +85,14 @@ pub use entities::PoolEntity;
 pub use entities::PoolListingEntity;
 pub use entities::PoolOriginEntity;
 pub use entities::PoolTokenEntity;
+pub use entities::ProtocolCandidateEntity;
+pub use entities::ProtocolCandidateSummaryEntity;
 pub use entities::SwapEntity;
 pub use entities::TokenBurnEventEntity;
 pub use entities::TokenEntity;
 pub use entities::TokenMintEventEntity;
 pub use entities::TradeEventEntity;
+pub use entities::TransactionClassificationEntity;
 pub use entities::WalletEntity;
 pub use entities::WalletHoldingEntity;
 pub use entities::WalletParticipationEntity;
@@ -172,6 +178,12 @@ pub use queries::query_pool_tokens_upsert;
 pub use queries::query_pools_get_by_address;
 pub use queries::query_pools_list;
 pub use queries::query_pools_upsert;
+pub use queries::query_protocol_candidate_summaries_list_by_priority;
+pub use queries::query_protocol_candidates_delete_by_transaction_id;
+pub use queries::query_protocol_candidates_insert;
+pub use queries::query_protocol_candidates_list_by_program_id;
+pub use queries::query_protocol_candidates_list_by_transaction_id;
+pub use queries::query_protocol_candidates_list_recent;
 pub use queries::query_swaps_list_recent;
 pub use queries::query_swaps_upsert;
 pub use queries::query_token_burn_events_list_recent;
@@ -187,6 +199,10 @@ pub use queries::query_trade_events_get_by_decoded_event_id;
 pub use queries::query_trade_events_list_by_pair_id;
 pub use queries::query_trade_events_list_by_transaction_id;
 pub use queries::query_trade_events_upsert;
+pub use queries::query_transaction_classifications_get_by_signature;
+pub use queries::query_transaction_classifications_get_by_transaction_id;
+pub use queries::query_transaction_classifications_list_recent;
+pub use queries::query_transaction_classifications_upsert;
 pub use queries::query_wallet_holdings_get_by_wallet_and_token;
 pub use queries::query_wallet_holdings_list_by_wallet_id;
 pub use queries::query_wallet_holdings_upsert;
diff --git a/kb_lib/src/db/dtos.rs b/kb_lib/src/db/dtos.rs
index 0262d7d..e2b5677 100644
--- a/kb_lib/src/db/dtos.rs
+++ b/kb_lib/src/db/dtos.rs
@@ -27,11 +27,14 @@ mod pool;
 mod pool_listing;
 mod pool_origin;
 mod pool_token;
+mod protocol_candidate;
+mod protocol_candidate_summary;
 mod swap;
 mod token;
 mod token_burn_event;
 mod token_mint_event;
 mod trade_event;
+mod transaction_classification;
 mod wallet;
 mod wallet_holding;
 mod wallet_participation;
@@ -82,11 +85,14 @@ pub use pool::PoolDto;
 pub use pool_listing::PoolListingDto;
 pub use pool_origin::PoolOriginDto;
 pub use pool_token::PoolTokenDto;
+pub use protocol_candidate::ProtocolCandidateDto;
+pub use protocol_candidate_summary::ProtocolCandidateSummaryDto;
 pub use swap::SwapDto;
 pub use token::TokenDto;
 pub use token_burn_event::TokenBurnEventDto;
 pub use token_mint_event::TokenMintEventDto;
 pub use trade_event::TradeEventDto;
+pub use transaction_classification::TransactionClassificationDto;
 pub use wallet::WalletDto;
 pub use wallet_holding::WalletHoldingDto;
 pub use wallet_participation::WalletParticipationDto;
diff --git a/kb_lib/src/db/dtos/protocol_candidate.rs b/kb_lib/src/db/dtos/protocol_candidate.rs
new file mode 100644
index 0000000..856aaf0
--- /dev/null
+++ b/kb_lib/src/db/dtos/protocol_candidate.rs
@@ -0,0 +1,114 @@
+// file: kb_lib/src/db/dtos/protocol_candidate.rs
+
+//! Protocol candidate DTO.
+
+/// Application-facing protocol candidate DTO.
+///
+/// A protocol candidate records a program/instruction that should be inspected
+/// later because it may correspond to an unsupported DEX, launch surface,
+/// migration path or protocol-specific non-trade event.
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
+pub struct ProtocolCandidateDto {
+    /// Optional numeric primary key.
+    pub id: std::option::Option<i64>,
+    /// Related chain transaction id.
+    pub transaction_id: i64,
+    /// Optional related chain instruction id.
+    pub instruction_id: std::option::Option<i64>,
+    /// Transaction signature.
+    pub signature: std::string::String,
+    /// Optional Solana slot.
+    pub slot: std::option::Option<u64>,
+    /// Program id observed in the transaction instruction.
+    pub program_id: std::string::String,
+    /// Optional program name hint from parsed transaction data.
+    pub program_name_hint: std::option::Option<std::string::String>,
+    /// Optional candidate protocol code.
+    pub candidate_protocol: std::option::Option<std::string::String>,
+    /// Optional candidate surface code.
+    pub candidate_surface: std::option::Option<std::string::String>,
+    /// Human-readable reason.
+    pub reason: std::string::String,
+    /// Serialized JSON evidence.
+    pub evidence_json: std::string::String,
+    /// Creation timestamp.
+    pub created_at: chrono::DateTime<chrono::Utc>,
+}
+
+impl ProtocolCandidateDto {
+    /// Creates a protocol candidate DTO.
+    #[allow(clippy::too_many_arguments)]
+    pub fn new(
+        transaction_id: i64,
+        instruction_id: std::option::Option<i64>,
+        signature: std::string::String,
+        slot: std::option::Option<u64>,
+        program_id: std::string::String,
+        program_name_hint: std::option::Option<std::string::String>,
+        candidate_protocol: std::option::Option<std::string::String>,
+        candidate_surface: std::option::Option<std::string::String>,
+        reason: std::string::String,
+        evidence_json: std::string::String,
+    ) -> Self {
+        return Self {
+            id: None,
+            transaction_id,
+            instruction_id,
+            signature,
+            slot,
+            program_id,
+            program_name_hint,
+            candidate_protocol,
+            candidate_surface,
+            reason,
+            evidence_json,
+            created_at: chrono::Utc::now(),
+        };
+    }
+}
+
+impl TryFrom<crate::ProtocolCandidateEntity> for ProtocolCandidateDto {
+    type Error = crate::Error;
+
+    fn try_from(entity: crate::ProtocolCandidateEntity) -> Result<Self, Self::Error> {
+        let slot = match entity.slot {
+            Some(slot) => {
+                let slot_result = u64::try_from(slot);
+                match slot_result {
+                    Ok(slot) => Some(slot),
+                    Err(error) => {
+                        return Err(crate::Error::Db(format!(
+                            "cannot convert protocol candidate slot '{}' to u64: {}",
+                            slot, error
+                        )));
+                    },
+                }
+            },
+            None => None,
+        };
+        let created_at_result = chrono::DateTime::parse_from_rfc3339(&entity.created_at);
+        let created_at = match created_at_result {
+            Ok(created_at) => created_at.with_timezone(&chrono::Utc),
+            Err(error) => {
+                return Err(crate::Error::Db(format!(
+                    "cannot parse protocol candidate created_at '{}': {}",
+                    entity.created_at, error
+                )));
+            },
+        };
+        return Ok(Self {
+            id: Some(entity.id),
+            transaction_id: entity.transaction_id,
+            instruction_id: entity.instruction_id,
+            signature: entity.signature,
+            slot,
+            program_id: entity.program_id,
+            program_name_hint: entity.program_name_hint,
+            candidate_protocol: entity.candidate_protocol,
+            candidate_surface: entity.candidate_surface,
+            reason: entity.reason,
+            evidence_json: entity.evidence_json,
+            created_at,
+        });
+    }
+}
diff --git a/kb_lib/src/db/dtos/protocol_candidate_summary.rs b/kb_lib/src/db/dtos/protocol_candidate_summary.rs
new file mode 100644
index 0000000..b8bdc22
--- /dev/null
+++ b/kb_lib/src/db/dtos/protocol_candidate_summary.rs
@@ -0,0 +1,96 @@
+// file: kb_lib/src/db/dtos/protocol_candidate_summary.rs
+
+//! Protocol candidate summary DTO.
+
+/// Aggregated protocol candidate diagnostic row.
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
+pub struct ProtocolCandidateSummaryDto {
+    /// Program id observed in protocol candidates.
+    pub program_id: std::string::String,
+    /// Optional program name hint.
+    pub program_name_hint: std::option::Option<std::string::String>,
+    /// Optional candidate protocol.
+    pub candidate_protocol: std::option::Option<std::string::String>,
+    /// Optional candidate surface.
+    pub candidate_surface: std::option::Option<std::string::String>,
+    /// Candidate reason.
+    pub reason: std::string::String,
+    /// Number of candidate rows.
+    pub occurrence_count: u64,
+    /// Number of distinct transactions.
+    pub transaction_count: u64,
+    /// Latest observed slot.
+    pub last_slot: std::option::Option<u64>,
+    /// Latest candidate row id in this group.
+    pub latest_candidate_id: i64,
+    /// Latest signature in this group.
+    pub latest_signature: std::string::String,
+    /// Latest candidate creation timestamp.
+    pub latest_created_at: chrono::DateTime<chrono::Utc>,
+}
+
+impl TryFrom<crate::ProtocolCandidateSummaryEntity> for ProtocolCandidateSummaryDto {
+    type Error = crate::Error;
+
+    fn try_from(entity: crate::ProtocolCandidateSummaryEntity) -> Result<Self, Self::Error> {
+        let occurrence_count_result = u64::try_from(entity.occurrence_count);
+        let occurrence_count = match occurrence_count_result {
+            Ok(occurrence_count) => occurrence_count,
+            Err(error) => {
+                return Err(crate::Error::Db(format!(
+                    "cannot convert protocol candidate occurrence_count '{}' to u64: {}",
+                    entity.occurrence_count, error
+                )));
+            },
+        };
+        let transaction_count_result = u64::try_from(entity.transaction_count);
+        let transaction_count = match transaction_count_result {
+            Ok(transaction_count) => transaction_count,
+            Err(error) => {
+                return Err(crate::Error::Db(format!(
+                    "cannot convert protocol candidate transaction_count '{}' to u64: {}",
+                    entity.transaction_count, error
+                )));
+            },
+        };
+        let last_slot = match entity.last_slot {
+            Some(last_slot) => {
+                let slot_result = u64::try_from(last_slot);
+                match slot_result {
+                    Ok(slot) => Some(slot),
+                    Err(error) => {
+                        return Err(crate::Error::Db(format!(
+                            "cannot convert protocol candidate last_slot '{}' to u64: {}",
+                            last_slot, error
+                        )));
+                    },
+                }
+            },
+            None => None,
+        };
+        let latest_created_at_result =
+            chrono::DateTime::parse_from_rfc3339(entity.latest_created_at.as_str());
+        let latest_created_at = match latest_created_at_result {
+            Ok(latest_created_at) => latest_created_at.with_timezone(&chrono::Utc),
+            Err(error) => {
+                return Err(crate::Error::Db(format!(
+                    "cannot parse protocol candidate latest_created_at '{}': {}",
+                    entity.latest_created_at, error
+                )));
+            },
+        };
+        return Ok(Self {
+            program_id: entity.program_id,
+            program_name_hint: entity.program_name_hint,
+            candidate_protocol: entity.candidate_protocol,
+            candidate_surface: entity.candidate_surface,
+            reason: entity.reason,
+            occurrence_count,
+            transaction_count,
+            last_slot,
+            latest_candidate_id: entity.latest_candidate_id,
+            latest_signature: entity.latest_signature,
+            latest_created_at,
+        });
+    }
+}
diff --git a/kb_lib/src/db/dtos/transaction_classification.rs b/kb_lib/src/db/dtos/transaction_classification.rs
new file mode 100644
index 0000000..9661852
--- /dev/null
+++ b/kb_lib/src/db/dtos/transaction_classification.rs
@@ -0,0 +1,130 @@
+// file: kb_lib/src/db/dtos/transaction_classification.rs
+
+//! Transaction classification DTO.
+
+/// Application-facing transaction classification DTO.
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
+pub struct TransactionClassificationDto {
+    /// Optional numeric primary key.
+    pub id: std::option::Option<i64>,
+    /// Related chain transaction id.
+    pub transaction_id: i64,
+    /// Transaction signature.
+    pub signature: std::string::String,
+    /// Optional Solana slot.
+    pub slot: std::option::Option<u64>,
+    /// Stable classification kind.
+    pub classification_kind: std::string::String,
+    /// Optional primary protocol name.
+    pub primary_protocol: std::option::Option<std::string::String>,
+    /// Optional primary program id.
+    pub primary_program_id: std::option::Option<std::string::String>,
+    /// Confidence level from 0 to 100.
+    pub confidence_level: i16,
+    /// Human-readable reason.
+    pub reason: std::string::String,
+    /// Serialized JSON evidence.
+    pub evidence_json: std::string::String,
+    /// Creation timestamp.
+    pub created_at: chrono::DateTime<chrono::Utc>,
+    /// Update timestamp.
+    pub updated_at: chrono::DateTime<chrono::Utc>,
+}
+
+impl TransactionClassificationDto {
+    /// Creates a new transaction classification DTO.
+    #[allow(clippy::too_many_arguments)]
+    pub fn new(
+        transaction_id: i64,
+        signature: std::string::String,
+        slot: std::option::Option<u64>,
+        classification_kind: std::string::String,
+        primary_protocol: std::option::Option<std::string::String>,
+        primary_program_id: std::option::Option<std::string::String>,
+        confidence_level: i16,
+        reason: std::string::String,
+        evidence_json: std::string::String,
+    ) -> Self {
+        let now = chrono::Utc::now();
+        return Self {
+            id: None,
+            transaction_id,
+            signature,
+            slot,
+            classification_kind,
+            primary_protocol,
+            primary_program_id,
+            confidence_level,
+            reason,
+            evidence_json,
+            created_at: now,
+            updated_at: now,
+        };
+    }
+}
+
+impl TryFrom<crate::TransactionClassificationEntity> for TransactionClassificationDto {
+    type Error = crate::Error;
+
+    fn try_from(entity: crate::TransactionClassificationEntity) -> Result<Self, Self::Error> {
+        let slot = match entity.slot {
+            Some(slot) => {
+                let slot_result = u64::try_from(slot);
+                match slot_result {
+                    Ok(slot) => Some(slot),
+                    Err(error) => {
+                        return Err(crate::Error::Db(format!(
+                            "cannot convert transaction classification slot '{}' to u64: {}",
+                            slot, error
+                        )));
+                    },
+                }
+            },
+            None => None,
+        };
+        let created_at_result = chrono::DateTime::parse_from_rfc3339(&entity.created_at);
+        let created_at = match created_at_result {
+            Ok(created_at) => created_at.with_timezone(&chrono::Utc),
+            Err(error) => {
+                return Err(crate::Error::Db(format!(
+                    "cannot parse transaction classification created_at '{}': {}",
+                    entity.created_at, error
+                )));
+            },
+        };
+        let updated_at_result = chrono::DateTime::parse_from_rfc3339(&entity.updated_at);
+        let updated_at = match updated_at_result {
+            Ok(updated_at) => updated_at.with_timezone(&chrono::Utc),
+            Err(error) => {
+                return Err(crate::Error::Db(format!(
+                    "cannot parse transaction classification updated_at '{}': {}",
+                    entity.updated_at, error
+                )));
+            },
+        };
+        let confidence_level_result = i16::try_from(entity.confidence_level);
+        let confidence_level = match confidence_level_result {
+            Ok(confidence_level) => confidence_level,
+            Err(error) => {
+                return Err(crate::Error::Db(format!(
+                    "cannot convert transaction classification confidence_level '{}' to i16: {}",
+                    entity.confidence_level, error
+                )));
+            },
+        };
+        return Ok(Self {
+            id: Some(entity.id),
+            transaction_id: entity.transaction_id,
+            signature: entity.signature,
+            slot,
+            classification_kind: entity.classification_kind,
+            primary_protocol: entity.primary_protocol,
+            primary_program_id: entity.primary_program_id,
+            confidence_level,
+            reason: entity.reason,
+            evidence_json: entity.evidence_json,
+            created_at,
+            updated_at,
+        });
+    }
+}
diff --git a/kb_lib/src/db/entities.rs b/kb_lib/src/db/entities.rs
index 0e10997..bd39c94 100644
--- a/kb_lib/src/db/entities.rs
+++ b/kb_lib/src/db/entities.rs
@@ -28,11 +28,14 @@ mod pool;
 mod pool_listing;
 mod pool_origin;
 mod pool_token;
+mod protocol_candidate;
+mod protocol_candidate_summary;
 mod swap;
 mod token;
 mod token_burn_event;
 mod token_mint_event;
 mod trade_event;
+mod transaction_classification;
 mod wallet;
 mod wallet_holding;
 mod wallet_participation;
@@ -61,11 +64,14 @@ pub use pool::PoolEntity;
 pub use pool_listing::PoolListingEntity;
 pub use pool_origin::PoolOriginEntity;
 pub use pool_token::PoolTokenEntity;
+pub use protocol_candidate::ProtocolCandidateEntity;
+pub use protocol_candidate_summary::ProtocolCandidateSummaryEntity;
 pub use swap::SwapEntity;
 pub use token::TokenEntity;
 pub use token_burn_event::TokenBurnEventEntity;
 pub use token_mint_event::TokenMintEventEntity;
 pub use trade_event::TradeEventEntity;
+pub use transaction_classification::TransactionClassificationEntity;
 pub use wallet::WalletEntity;
 pub use wallet_holding::WalletHoldingEntity;
 pub use wallet_participation::WalletParticipationEntity;
diff --git a/kb_lib/src/db/entities/protocol_candidate.rs b/kb_lib/src/db/entities/protocol_candidate.rs
new file mode 100644
index 0000000..c30eaee
--- /dev/null
+++ b/kb_lib/src/db/entities/protocol_candidate.rs
@@ -0,0 +1,32 @@
+// file: kb_lib/src/db/entities/protocol_candidate.rs
+
+//! Protocol candidate entity.
+
+/// Persisted protocol candidate row.
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize, sqlx::FromRow)]
+pub struct ProtocolCandidateEntity {
+    /// Numeric primary key.
+    pub id: i64,
+    /// Related chain transaction id.
+    pub transaction_id: i64,
+    /// Optional related chain instruction id.
+    pub instruction_id: std::option::Option<i64>,
+    /// Transaction signature.
+    pub signature: std::string::String,
+    /// Optional Solana slot.
+    pub slot: std::option::Option<i64>,
+    /// Program id observed in the transaction instruction.
+    pub program_id: std::string::String,
+    /// Optional program name hint from parsed transaction data.
+    pub program_name_hint: std::option::Option<std::string::String>,
+    /// Optional candidate protocol code.
+    pub candidate_protocol: std::option::Option<std::string::String>,
+    /// Optional candidate surface code.
+    pub candidate_surface: std::option::Option<std::string::String>,
+    /// Human-readable reason.
+    pub reason: std::string::String,
+    /// Serialized JSON evidence.
+    pub evidence_json: std::string::String,
+    /// Creation timestamp encoded as RFC3339 UTC text.
+    pub created_at: std::string::String,
+}
diff --git a/kb_lib/src/db/entities/protocol_candidate_summary.rs b/kb_lib/src/db/entities/protocol_candidate_summary.rs
new file mode 100644
index 0000000..5717436
--- /dev/null
+++ b/kb_lib/src/db/entities/protocol_candidate_summary.rs
@@ -0,0 +1,30 @@
+// file: kb_lib/src/db/entities/protocol_candidate_summary.rs
+
+//! Protocol candidate summary entity.
+
+/// Aggregated protocol candidate diagnostic row.
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize, sqlx::FromRow)]
+pub struct ProtocolCandidateSummaryEntity {
+    /// Program id observed in protocol candidates.
+    pub program_id: std::string::String,
+    /// Optional program name hint.
+    pub program_name_hint: std::option::Option<std::string::String>,
+    /// Optional candidate protocol.
+    pub candidate_protocol: std::option::Option<std::string::String>,
+    /// Optional candidate surface.
+    pub candidate_surface: std::option::Option<std::string::String>,
+    /// Candidate reason.
+    pub reason: std::string::String,
+    /// Number of candidate rows.
+    pub occurrence_count: i64,
+    /// Number of distinct transactions.
+    pub transaction_count: i64,
+    /// Latest observed slot.
+    pub last_slot: std::option::Option<i64>,
+    /// Latest candidate row id in this group.
+    pub latest_candidate_id: i64,
+    /// Latest signature in this group.
+    pub latest_signature: std::string::String,
+    /// Latest candidate creation timestamp encoded as RFC3339 UTC text.
+    pub latest_created_at: std::string::String,
+}
diff --git a/kb_lib/src/db/entities/transaction_classification.rs b/kb_lib/src/db/entities/transaction_classification.rs
new file mode 100644
index 0000000..3c18aa9
--- /dev/null
+++ b/kb_lib/src/db/entities/transaction_classification.rs
@@ -0,0 +1,32 @@
+// file: kb_lib/src/db/entities/transaction_classification.rs
+
+//! Transaction classification entity.
+
+/// Persisted transaction classification row.
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize, sqlx::FromRow)]
+pub struct TransactionClassificationEntity {
+    /// Numeric primary key.
+    pub id: i64,
+    /// Related chain transaction id.
+    pub transaction_id: i64,
+    /// Transaction signature.
+    pub signature: std::string::String,
+    /// Optional Solana slot.
+    pub slot: std::option::Option<i64>,
+    /// Stable classification kind.
+    pub classification_kind: std::string::String,
+    /// Optional primary protocol name.
+    pub primary_protocol: std::option::Option<std::string::String>,
+    /// Optional primary program id.
+    pub primary_program_id: std::option::Option<std::string::String>,
+    /// Confidence level from 0 to 100.
+    pub confidence_level: i64,
+    /// Human-readable reason.
+    pub reason: std::string::String,
+    /// Serialized JSON evidence.
+    pub evidence_json: std::string::String,
+    /// Creation timestamp encoded as RFC3339 UTC text.
+    pub created_at: std::string::String,
+    /// Update timestamp encoded as RFC3339 UTC text.
+    pub updated_at: std::string::String,
+}
diff --git a/kb_lib/src/db/queries.rs b/kb_lib/src/db/queries.rs
index d5e054f..557d3df 100644
--- a/kb_lib/src/db/queries.rs
+++ b/kb_lib/src/db/queries.rs
@@ -27,11 +27,13 @@ mod pool;
 mod pool_listing;
 mod pool_origin;
 mod pool_token;
+mod protocol_candidate;
 mod swap;
 mod token;
 mod token_burn_event;
 mod token_mint_event;
 mod trade_event;
+mod transaction_classification;
 mod wallet;
 mod wallet_holding;
 mod wallet_participation;
@@ -118,6 +120,12 @@ pub use pool_origin::query_pool_origins_list;
 pub use pool_origin::query_pool_origins_upsert;
 pub use pool_token::query_pool_tokens_list_by_pool_id;
 pub use pool_token::query_pool_tokens_upsert;
+pub use protocol_candidate::query_protocol_candidate_summaries_list_by_priority;
+pub use protocol_candidate::query_protocol_candidates_delete_by_transaction_id;
+pub use protocol_candidate::query_protocol_candidates_insert;
+pub use protocol_candidate::query_protocol_candidates_list_by_program_id;
+pub use protocol_candidate::query_protocol_candidates_list_by_transaction_id;
+pub use protocol_candidate::query_protocol_candidates_list_recent;
 pub use swap::query_swaps_list_recent;
 pub use swap::query_swaps_upsert;
 pub use token::query_tokens_get_by_id;
@@ -133,6 +141,10 @@ pub use trade_event::query_trade_events_get_by_decoded_event_id;
 pub use trade_event::query_trade_events_list_by_pair_id;
 pub use trade_event::query_trade_events_list_by_transaction_id;
 pub use trade_event::query_trade_events_upsert;
+pub use transaction_classification::query_transaction_classifications_get_by_signature;
+pub use transaction_classification::query_transaction_classifications_get_by_transaction_id;
+pub use transaction_classification::query_transaction_classifications_list_recent;
+pub use transaction_classification::query_transaction_classifications_upsert;
 pub use wallet::query_wallets_get_by_address;
 pub use wallet::query_wallets_list;
 pub use wallet::query_wallets_upsert;
diff --git a/kb_lib/src/db/queries/protocol_candidate.rs b/kb_lib/src/db/queries/protocol_candidate.rs
new file mode 100644
index 0000000..b62afa6
--- /dev/null
+++ b/kb_lib/src/db/queries/protocol_candidate.rs
@@ -0,0 +1,337 @@
+// file: kb_lib/src/db/queries/protocol_candidate.rs
+
+//! Queries for `k_sol_protocol_candidates`.
+
+/// Inserts one protocol candidate row.
+pub async fn query_protocol_candidates_insert(
+    database: &crate::Database,
+    dto: &crate::ProtocolCandidateDto,
+) -> Result<i64, crate::Error> {
+    let slot_i64 = match dto.slot {
+        Some(slot) => {
+            let slot_result = i64::try_from(slot);
+            match slot_result {
+                Ok(slot) => Some(slot),
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot convert protocol candidate slot '{}' to i64: {}",
+                        slot, error
+                    )));
+                },
+            }
+        },
+        None => None,
+    };
+    match database.connection() {
+        crate::DatabaseConnection::Sqlite(pool) => {
+            let query_result = sqlx::query(
+                r#"
+INSERT INTO k_sol_protocol_candidates (
+    transaction_id,
+    instruction_id,
+    signature,
+    slot,
+    program_id,
+    program_name_hint,
+    candidate_protocol,
+    candidate_surface,
+    reason,
+    evidence_json,
+    created_at
+)
+VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                "#,
+            )
+            .bind(dto.transaction_id)
+            .bind(dto.instruction_id)
+            .bind(dto.signature.clone())
+            .bind(slot_i64)
+            .bind(dto.program_id.clone())
+            .bind(dto.program_name_hint.clone())
+            .bind(dto.candidate_protocol.clone())
+            .bind(dto.candidate_surface.clone())
+            .bind(dto.reason.clone())
+            .bind(dto.evidence_json.clone())
+            .bind(dto.created_at.to_rfc3339())
+            .execute(pool)
+            .await;
+            match query_result {
+                Ok(query_result) => return Ok(query_result.last_insert_rowid()),
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot insert k_sol_protocol_candidates on sqlite: {}",
+                        error
+                    )));
+                },
+            }
+        },
+    }
+}
+
+/// Deletes protocol candidates for one transaction.
+///
+/// This is useful before recomputing candidates for a replayed transaction.
+pub async fn query_protocol_candidates_delete_by_transaction_id(
+    database: &crate::Database,
+    transaction_id: i64,
+) -> Result<u64, crate::Error> {
+    match database.connection() {
+        crate::DatabaseConnection::Sqlite(pool) => {
+            let query_result = sqlx::query(
+                r#"
+DELETE FROM k_sol_protocol_candidates
+WHERE transaction_id = ?
+                "#,
+            )
+            .bind(transaction_id)
+            .execute(pool)
+            .await;
+            match query_result {
+                Ok(query_result) => return Ok(query_result.rows_affected()),
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot delete k_sol_protocol_candidates for transaction_id '{}' on sqlite: {}",
+                        transaction_id, error
+                    )));
+                },
+            }
+        },
+    }
+}
+
+/// Lists protocol candidates for one transaction.
+pub async fn query_protocol_candidates_list_by_transaction_id(
+    database: &crate::Database,
+    transaction_id: i64,
+) -> Result<std::vec::Vec<crate::ProtocolCandidateDto>, crate::Error> {
+    match database.connection() {
+        crate::DatabaseConnection::Sqlite(pool) => {
+            let query_result = sqlx::query_as::<sqlx::Sqlite, crate::ProtocolCandidateEntity>(
+                r#"
+SELECT
+    id,
+    transaction_id,
+    instruction_id,
+    signature,
+    slot,
+    program_id,
+    program_name_hint,
+    candidate_protocol,
+    candidate_surface,
+    reason,
+    evidence_json,
+    created_at
+FROM k_sol_protocol_candidates
+WHERE transaction_id = ?
+ORDER BY id ASC
+                "#,
+            )
+            .bind(transaction_id)
+            .fetch_all(pool)
+            .await;
+            let entities = match query_result {
+                Ok(entities) => entities,
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot list k_sol_protocol_candidates for transaction_id '{}' on sqlite: {}",
+                        transaction_id, error
+                    )));
+                },
+            };
+            return protocol_candidate_entities_to_dtos(entities);
+        },
+    }
+}
+
+/// Lists protocol candidates for one program id.
+pub async fn query_protocol_candidates_list_by_program_id(
+    database: &crate::Database,
+    program_id: &str,
+    limit: u32,
+) -> Result<std::vec::Vec<crate::ProtocolCandidateDto>, crate::Error> {
+    if limit == 0 {
+        return Ok(std::vec::Vec::new());
+    }
+    match database.connection() {
+        crate::DatabaseConnection::Sqlite(pool) => {
+            let query_result = sqlx::query_as::<sqlx::Sqlite, crate::ProtocolCandidateEntity>(
+                r#"
+SELECT
+    id,
+    transaction_id,
+    instruction_id,
+    signature,
+    slot,
+    program_id,
+    program_name_hint,
+    candidate_protocol,
+    candidate_surface,
+    reason,
+    evidence_json,
+    created_at
+FROM k_sol_protocol_candidates
+WHERE program_id = ?
+ORDER BY id DESC
+LIMIT ?
+                "#,
+            )
+            .bind(program_id.to_string())
+            .bind(i64::from(limit))
+            .fetch_all(pool)
+            .await;
+            let entities = match query_result {
+                Ok(entities) => entities,
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot list k_sol_protocol_candidates for program_id '{}' on sqlite: {}",
+                        program_id, error
+                    )));
+                },
+            };
+            return protocol_candidate_entities_to_dtos(entities);
+        },
+    }
+}
+
+/// Lists recent protocol candidates ordered from newest to oldest.
+pub async fn query_protocol_candidates_list_recent(
+    database: &crate::Database,
+    limit: u32,
+) -> Result<std::vec::Vec<crate::ProtocolCandidateDto>, crate::Error> {
+    if limit == 0 {
+        return Ok(std::vec::Vec::new());
+    }
+    match database.connection() {
+        crate::DatabaseConnection::Sqlite(pool) => {
+            let query_result = sqlx::query_as::<sqlx::Sqlite, crate::ProtocolCandidateEntity>(
+                r#"
+SELECT
+    id,
+    transaction_id,
+    instruction_id,
+    signature,
+    slot,
+    program_id,
+    program_name_hint,
+    candidate_protocol,
+    candidate_surface,
+    reason,
+    evidence_json,
+    created_at
+FROM k_sol_protocol_candidates
+ORDER BY id DESC
+LIMIT ?
+                "#,
+            )
+            .bind(i64::from(limit))
+            .fetch_all(pool)
+            .await;
+            let entities = match query_result {
+                Ok(entities) => entities,
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot list recent k_sol_protocol_candidates on sqlite: {}",
+                        error
+                    )));
+                },
+            };
+            return protocol_candidate_entities_to_dtos(entities);
+        },
+    }
+}
+
+fn protocol_candidate_entities_to_dtos(
+    entities: std::vec::Vec<crate::ProtocolCandidateEntity>,
+) -> Result<std::vec::Vec<crate::ProtocolCandidateDto>, crate::Error> {
+    let mut dtos = std::vec::Vec::new();
+    for entity in entities {
+        let dto_result = crate::ProtocolCandidateDto::try_from(entity);
+        let dto = match dto_result {
+            Ok(dto) => dto,
+            Err(error) => return Err(error),
+        };
+        dtos.push(dto);
+    }
+    return Ok(dtos);
+}
+
+/// Lists protocol candidate summaries ordered by investigation priority.
+pub async fn query_protocol_candidate_summaries_list_by_priority(
+    database: &crate::Database,
+    limit: u32,
+) -> Result<std::vec::Vec<crate::ProtocolCandidateSummaryDto>, crate::Error> {
+    if limit == 0 {
+        return Ok(std::vec::Vec::new());
+    }
+    match database.connection() {
+        crate::DatabaseConnection::Sqlite(pool) => {
+            let query_result =
+                sqlx::query_as::<sqlx::Sqlite, crate::ProtocolCandidateSummaryEntity>(
+                    r#"
+WITH grouped AS (
+    SELECT
+        program_id,
+        program_name_hint,
+        candidate_protocol,
+        candidate_surface,
+        reason,
+        COUNT(*) AS occurrence_count,
+        COUNT(DISTINCT signature) AS transaction_count,
+        MAX(slot) AS last_slot,
+        MAX(id) AS latest_candidate_id
+    FROM k_sol_protocol_candidates
+    GROUP BY
+        program_id,
+        program_name_hint,
+        candidate_protocol,
+        candidate_surface,
+        reason
+)
+SELECT
+    grouped.program_id,
+    grouped.program_name_hint,
+    grouped.candidate_protocol,
+    grouped.candidate_surface,
+    grouped.reason,
+    grouped.occurrence_count,
+    grouped.transaction_count,
+    grouped.last_slot,
+    grouped.latest_candidate_id,
+    latest.signature AS latest_signature,
+    latest.created_at AS latest_created_at
+FROM grouped
+JOIN k_sol_protocol_candidates latest
+    ON latest.id = grouped.latest_candidate_id
+ORDER BY
+    grouped.transaction_count DESC,
+    grouped.occurrence_count DESC,
+    grouped.last_slot DESC,
+    grouped.latest_candidate_id DESC
+LIMIT ?
+                    "#,
+                )
+                .bind(i64::from(limit))
+                .fetch_all(pool)
+                .await;
+            let entities = match query_result {
+                Ok(entities) => entities,
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot list k_sol_protocol_candidates summaries on sqlite: {}",
+                        error
+                    )));
+                },
+            };
+            let mut dtos = std::vec::Vec::new();
+            for entity in entities {
+                let dto_result = crate::ProtocolCandidateSummaryDto::try_from(entity);
+                let dto = match dto_result {
+                    Ok(dto) => dto,
+                    Err(error) => return Err(error),
+                };
+                dtos.push(dto);
+            }
+            return Ok(dtos);
+        },
+    }
+}
diff --git a/kb_lib/src/db/queries/transaction_classification.rs b/kb_lib/src/db/queries/transaction_classification.rs
new file mode 100644
index 0000000..5e8b3df
--- /dev/null
+++ b/kb_lib/src/db/queries/transaction_classification.rs
@@ -0,0 +1,263 @@
+// file: kb_lib/src/db/queries/transaction_classification.rs
+
+//! Queries for `k_sol_transaction_classifications`.
+
+/// Inserts or updates one transaction classification row.
+pub async fn query_transaction_classifications_upsert(
+    database: &crate::Database,
+    dto: &crate::TransactionClassificationDto,
+) -> Result<i64, crate::Error> {
+    let slot_i64 = match dto.slot {
+        Some(slot) => {
+            let slot_result = i64::try_from(slot);
+            match slot_result {
+                Ok(slot) => Some(slot),
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot convert transaction classification slot '{}' to i64: {}",
+                        slot, error
+                    )));
+                },
+            }
+        },
+        None => None,
+    };
+    match database.connection() {
+        crate::DatabaseConnection::Sqlite(pool) => {
+            let query_result = sqlx::query(
+                r#"
+INSERT INTO k_sol_transaction_classifications (
+    transaction_id,
+    signature,
+    slot,
+    classification_kind,
+    primary_protocol,
+    primary_program_id,
+    confidence_level,
+    reason,
+    evidence_json,
+    created_at,
+    updated_at
+)
+VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+ON CONFLICT(transaction_id) DO UPDATE SET
+    signature = excluded.signature,
+    slot = excluded.slot,
+    classification_kind = excluded.classification_kind,
+    primary_protocol = excluded.primary_protocol,
+    primary_program_id = excluded.primary_program_id,
+    confidence_level = excluded.confidence_level,
+    reason = excluded.reason,
+    evidence_json = excluded.evidence_json,
+    updated_at = excluded.updated_at
+                "#,
+            )
+            .bind(dto.transaction_id)
+            .bind(dto.signature.clone())
+            .bind(slot_i64)
+            .bind(dto.classification_kind.clone())
+            .bind(dto.primary_protocol.clone())
+            .bind(dto.primary_program_id.clone())
+            .bind(i64::from(dto.confidence_level))
+            .bind(dto.reason.clone())
+            .bind(dto.evidence_json.clone())
+            .bind(dto.created_at.to_rfc3339())
+            .bind(dto.updated_at.to_rfc3339())
+            .execute(pool)
+            .await;
+            if let Err(error) = query_result {
+                return Err(crate::Error::Db(format!(
+                    "cannot upsert k_sol_transaction_classifications on sqlite: {}",
+                    error
+                )));
+            }
+
+            let id_result = sqlx::query_scalar::<sqlx::Sqlite, i64>(
+                r#"
+SELECT id
+FROM k_sol_transaction_classifications
+WHERE transaction_id = ?
+LIMIT 1
+                "#,
+            )
+            .bind(dto.transaction_id)
+            .fetch_one(pool)
+            .await;
+            match id_result {
+                Ok(id) => return Ok(id),
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot fetch k_sol_transaction_classifications id for transaction_id '{}' on sqlite: {}",
+                        dto.transaction_id, error
+                    )));
+                },
+            }
+        },
+    }
+}
+
+/// Reads one transaction classification by transaction id.
+pub async fn query_transaction_classifications_get_by_transaction_id(
+    database: &crate::Database,
+    transaction_id: i64,
+) -> Result<std::option::Option<crate::TransactionClassificationDto>, crate::Error> {
+    match database.connection() {
+        crate::DatabaseConnection::Sqlite(pool) => {
+            let query_result =
+                sqlx::query_as::<sqlx::Sqlite, crate::TransactionClassificationEntity>(
+                    r#"
+SELECT
+    id,
+    transaction_id,
+    signature,
+    slot,
+    classification_kind,
+    primary_protocol,
+    primary_program_id,
+    confidence_level,
+    reason,
+    evidence_json,
+    created_at,
+    updated_at
+FROM k_sol_transaction_classifications
+WHERE transaction_id = ?
+LIMIT 1
+                    "#,
+                )
+                .bind(transaction_id)
+                .fetch_optional(pool)
+                .await;
+            let entity_option = match query_result {
+                Ok(entity_option) => entity_option,
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot fetch k_sol_transaction_classifications for transaction_id '{}' on sqlite: {}",
+                        transaction_id, error
+                    )));
+                },
+            };
+            match entity_option {
+                Some(entity) => {
+                    let dto_result = crate::TransactionClassificationDto::try_from(entity);
+                    match dto_result {
+                        Ok(dto) => return Ok(Some(dto)),
+                        Err(error) => return Err(error),
+                    }
+                },
+                None => return Ok(None),
+            }
+        },
+    }
+}
+
+/// Reads one transaction classification by signature.
+pub async fn query_transaction_classifications_get_by_signature(
+    database: &crate::Database,
+    signature: &str,
+) -> Result<std::option::Option<crate::TransactionClassificationDto>, crate::Error> {
+    match database.connection() {
+        crate::DatabaseConnection::Sqlite(pool) => {
+            let query_result =
+                sqlx::query_as::<sqlx::Sqlite, crate::TransactionClassificationEntity>(
+                    r#"
+SELECT
+    id,
+    transaction_id,
+    signature,
+    slot,
+    classification_kind,
+    primary_protocol,
+    primary_program_id,
+    confidence_level,
+    reason,
+    evidence_json,
+    created_at,
+    updated_at
+FROM k_sol_transaction_classifications
+WHERE signature = ?
+LIMIT 1
+                    "#,
+                )
+                .bind(signature.to_string())
+                .fetch_optional(pool)
+                .await;
+            let entity_option = match query_result {
+                Ok(entity_option) => entity_option,
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot fetch k_sol_transaction_classifications for signature '{}' on sqlite: {}",
+                        signature, error
+                    )));
+                },
+            };
+            match entity_option {
+                Some(entity) => {
+                    let dto_result = crate::TransactionClassificationDto::try_from(entity);
+                    match dto_result {
+                        Ok(dto) => return Ok(Some(dto)),
+                        Err(error) => return Err(error),
+                    }
+                },
+                None => return Ok(None),
+            }
+        },
+    }
+}
+
+/// Lists recent transaction classifications ordered from newest to oldest.
+pub async fn query_transaction_classifications_list_recent(
+    database: &crate::Database,
+    limit: u32,
+) -> Result<std::vec::Vec<crate::TransactionClassificationDto>, crate::Error> {
+    if limit == 0 {
+        return Ok(std::vec::Vec::new());
+    }
+    match database.connection() {
+        crate::DatabaseConnection::Sqlite(pool) => {
+            let query_result =
+                sqlx::query_as::<sqlx::Sqlite, crate::TransactionClassificationEntity>(
+                    r#"
+SELECT
+    id,
+    transaction_id,
+    signature,
+    slot,
+    classification_kind,
+    primary_protocol,
+    primary_program_id,
+    confidence_level,
+    reason,
+    evidence_json,
+    created_at,
+    updated_at
+FROM k_sol_transaction_classifications
+ORDER BY id DESC
+LIMIT ?
+                    "#,
+                )
+                .bind(i64::from(limit))
+                .fetch_all(pool)
+                .await;
+            let entities = match query_result {
+                Ok(entities) => entities,
+                Err(error) => {
+                    return Err(crate::Error::Db(format!(
+                        "cannot list k_sol_transaction_classifications on sqlite: {}",
+                        error
+                    )));
+                },
+            };
+            let mut dtos = std::vec::Vec::new();
+            for entity in entities {
+                let dto_result = crate::TransactionClassificationDto::try_from(entity);
+                let dto = match dto_result {
+                    Ok(dto) => dto,
+                    Err(error) => return Err(error),
+                };
+
+                dtos.push(dto);
+            }
+            return Ok(dtos);
+        },
+    }
+}
diff --git a/kb_lib/src/db/schema.rs b/kb_lib/src/db/schema.rs
index 84efdb1..4d5f3bc 100644
--- a/kb_lib/src/db/schema.rs
+++ b/kb_lib/src/db/schema.rs
@@ -230,6 +230,94 @@ pub(crate) async fn ensure_schema(database: &crate::Database) -> Result<(), crat
             if let Err(error) = result {
                 return Err(error);
             }
+            let result = create_tbl_transaction_classifications(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_uix_transaction_classifications_transaction_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_transaction_classifications_kind(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_tbl_protocol_candidates(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_protocol_candidates_transaction_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_protocol_candidates_program_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_tbl_pool_lifecycle_events(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_pool_lifecycle_events_transaction_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_pool_lifecycle_events_pool_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_uix_pool_lifecycle_events_decoded_event_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_tbl_fee_events(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_fee_events_transaction_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_fee_events_pool_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_uix_fee_events_decoded_event_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_tbl_reward_events(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_reward_events_transaction_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_reward_events_pool_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_uix_reward_events_decoded_event_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_tbl_pool_admin_events(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_pool_admin_events_transaction_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_idx_pool_admin_events_pool_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
+            let result = create_uix_pool_admin_events_decoded_event_id(pool).await;
+            if let Err(error) = result {
+                return Err(error);
+            }
             let result = create_tbl_launch_surfaces(pool).await;
             if let Err(error) = result {
                 return Err(error);
@@ -1878,3 +1966,413 @@ ON k_sol_pair_analytic_signals(pair_id)
     )
     .await;
 }
+
+/// Creates `k_sol_transaction_classifications`.
+async fn create_tbl_transaction_classifications(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_tbl_transaction_classifications",
+        r#"
+CREATE TABLE IF NOT EXISTS k_sol_transaction_classifications (
+    id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    transaction_id INTEGER NOT NULL,
+    signature TEXT NOT NULL,
+    slot INTEGER NULL,
+    classification_kind TEXT NOT NULL,
+    primary_protocol TEXT NULL,
+    primary_program_id TEXT NULL,
+    confidence_level INTEGER NOT NULL,
+    reason TEXT NOT NULL,
+    evidence_json TEXT NOT NULL,
+    created_at TEXT NOT NULL,
+    updated_at TEXT NOT NULL
+)
+        "#,
+    )
+    .await;
+}
+
+/// Creates unique index on `k_sol_transaction_classifications(transaction_id)`.
+async fn create_uix_transaction_classifications_transaction_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_uix_transaction_classifications_transaction_id",
+        r#"
+CREATE UNIQUE INDEX IF NOT EXISTS uix_transaction_classifications_transaction_id
+ON k_sol_transaction_classifications (transaction_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_transaction_classifications(classification_kind)`.
+async fn create_idx_transaction_classifications_kind(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_transaction_classifications_kind",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_transaction_classifications_kind
+ON k_sol_transaction_classifications (classification_kind)
+        "#,
+    )
+    .await;
+}
+
+/// Creates `k_sol_protocol_candidates`.
+async fn create_tbl_protocol_candidates(pool: &sqlx::SqlitePool) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_tbl_protocol_candidates",
+        r#"
+CREATE TABLE IF NOT EXISTS k_sol_protocol_candidates (
+    id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    transaction_id INTEGER NOT NULL,
+    instruction_id INTEGER NULL,
+    signature TEXT NOT NULL,
+    slot INTEGER NULL,
+    program_id TEXT NOT NULL,
+    program_name_hint TEXT NULL,
+    candidate_protocol TEXT NULL,
+    candidate_surface TEXT NULL,
+    reason TEXT NOT NULL,
+    evidence_json TEXT NOT NULL,
+    created_at TEXT NOT NULL
+)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_protocol_candidates(transaction_id)`.
+async fn create_idx_protocol_candidates_transaction_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_protocol_candidates_transaction_id",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_protocol_candidates_transaction_id
+ON k_sol_protocol_candidates (transaction_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_protocol_candidates(program_id)`.
+async fn create_idx_protocol_candidates_program_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_protocol_candidates_program_id",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_protocol_candidates_program_id
+ON k_sol_protocol_candidates (program_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates `k_sol_pool_lifecycle_events`.
+async fn create_tbl_pool_lifecycle_events(pool: &sqlx::SqlitePool) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_tbl_pool_lifecycle_events",
+        r#"
+CREATE TABLE IF NOT EXISTS k_sol_pool_lifecycle_events (
+    id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    transaction_id INTEGER NOT NULL,
+    decoded_event_id INTEGER NULL,
+    dex_id INTEGER NULL,
+    pool_id INTEGER NULL,
+    pair_id INTEGER NULL,
+    signature TEXT NOT NULL,
+    slot INTEGER NULL,
+    protocol_name TEXT NOT NULL,
+    program_id TEXT NOT NULL,
+    event_kind TEXT NOT NULL,
+    pool_account TEXT NULL,
+    token_a_mint TEXT NULL,
+    token_b_mint TEXT NULL,
+    payload_json TEXT NOT NULL,
+    executed_at TEXT NOT NULL,
+    created_at TEXT NOT NULL
+)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_pool_lifecycle_events(transaction_id)`.
+async fn create_idx_pool_lifecycle_events_transaction_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_pool_lifecycle_events_transaction_id",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_pool_lifecycle_events_transaction_id
+ON k_sol_pool_lifecycle_events (transaction_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_pool_lifecycle_events(pool_id)`.
+async fn create_idx_pool_lifecycle_events_pool_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_pool_lifecycle_events_pool_id",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_pool_lifecycle_events_pool_id
+ON k_sol_pool_lifecycle_events (pool_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates partial unique index on `k_sol_pool_lifecycle_events(decoded_event_id)`.
+async fn create_uix_pool_lifecycle_events_decoded_event_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_uix_pool_lifecycle_events_decoded_event_id",
+        r#"
+CREATE UNIQUE INDEX IF NOT EXISTS uix_pool_lifecycle_events_decoded_event_id
+ON k_sol_pool_lifecycle_events (decoded_event_id)
+WHERE decoded_event_id IS NOT NULL
+        "#,
+    )
+    .await;
+}
+
+/// Creates `k_sol_fee_events`.
+async fn create_tbl_fee_events(pool: &sqlx::SqlitePool) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_tbl_fee_events",
+        r#"
+CREATE TABLE IF NOT EXISTS k_sol_fee_events (
+    id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    transaction_id INTEGER NOT NULL,
+    decoded_event_id INTEGER NULL,
+    dex_id INTEGER NULL,
+    pool_id INTEGER NULL,
+    pair_id INTEGER NULL,
+    signature TEXT NOT NULL,
+    slot INTEGER NULL,
+    protocol_name TEXT NOT NULL,
+    program_id TEXT NOT NULL,
+    event_kind TEXT NOT NULL,
+    pool_account TEXT NULL,
+    actor_wallet TEXT NULL,
+    fee_token_mint TEXT NULL,
+    fee_amount_raw TEXT NULL,
+    payload_json TEXT NOT NULL,
+    executed_at TEXT NOT NULL,
+    created_at TEXT NOT NULL
+)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_fee_events(transaction_id)`.
+async fn create_idx_fee_events_transaction_id(pool: &sqlx::SqlitePool) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_fee_events_transaction_id",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_fee_events_transaction_id
+ON k_sol_fee_events (transaction_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_fee_events(pool_id)`.
+async fn create_idx_fee_events_pool_id(pool: &sqlx::SqlitePool) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_fee_events_pool_id",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_fee_events_pool_id
+ON k_sol_fee_events (pool_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates partial unique index on `k_sol_fee_events(decoded_event_id)`.
+async fn create_uix_fee_events_decoded_event_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_uix_fee_events_decoded_event_id",
+        r#"
+CREATE UNIQUE INDEX IF NOT EXISTS uix_fee_events_decoded_event_id
+ON k_sol_fee_events (decoded_event_id)
+WHERE decoded_event_id IS NOT NULL
+        "#,
+    )
+    .await;
+}
+
+/// Creates `k_sol_reward_events`.
+async fn create_tbl_reward_events(pool: &sqlx::SqlitePool) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_tbl_reward_events",
+        r#"
+CREATE TABLE IF NOT EXISTS k_sol_reward_events (
+    id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    transaction_id INTEGER NOT NULL,
+    decoded_event_id INTEGER NULL,
+    dex_id INTEGER NULL,
+    pool_id INTEGER NULL,
+    pair_id INTEGER NULL,
+    signature TEXT NOT NULL,
+    slot INTEGER NULL,
+    protocol_name TEXT NOT NULL,
+    program_id TEXT NOT NULL,
+    event_kind TEXT NOT NULL,
+    pool_account TEXT NULL,
+    actor_wallet TEXT NULL,
+    reward_token_mint TEXT NULL,
+    reward_amount_raw TEXT NULL,
+    payload_json TEXT NOT NULL,
+    executed_at TEXT NOT NULL,
+    created_at TEXT NOT NULL
+)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_reward_events(transaction_id)`.
+async fn create_idx_reward_events_transaction_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_reward_events_transaction_id",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_reward_events_transaction_id
+ON k_sol_reward_events (transaction_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_reward_events(pool_id)`.
+async fn create_idx_reward_events_pool_id(pool: &sqlx::SqlitePool) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_reward_events_pool_id",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_reward_events_pool_id
+ON k_sol_reward_events (pool_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates partial unique index on `k_sol_reward_events(decoded_event_id)`.
+async fn create_uix_reward_events_decoded_event_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_uix_reward_events_decoded_event_id",
+        r#"
+CREATE UNIQUE INDEX IF NOT EXISTS uix_reward_events_decoded_event_id
+ON k_sol_reward_events (decoded_event_id)
+WHERE decoded_event_id IS NOT NULL
+        "#,
+    )
+    .await;
+}
+
+/// Creates `k_sol_pool_admin_events`.
+async fn create_tbl_pool_admin_events(pool: &sqlx::SqlitePool) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_tbl_pool_admin_events",
+        r#"
+CREATE TABLE IF NOT EXISTS k_sol_pool_admin_events (
+    id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    transaction_id INTEGER NOT NULL,
+    decoded_event_id INTEGER NULL,
+    dex_id INTEGER NULL,
+    pool_id INTEGER NULL,
+    pair_id INTEGER NULL,
+    signature TEXT NOT NULL,
+    slot INTEGER NULL,
+    protocol_name TEXT NOT NULL,
+    program_id TEXT NOT NULL,
+    event_kind TEXT NOT NULL,
+    pool_account TEXT NULL,
+    actor_wallet TEXT NULL,
+    admin_action TEXT NULL,
+    payload_json TEXT NOT NULL,
+    executed_at TEXT NOT NULL,
+    created_at TEXT NOT NULL
+)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_pool_admin_events(transaction_id)`.
+async fn create_idx_pool_admin_events_transaction_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_pool_admin_events_transaction_id",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_pool_admin_events_transaction_id
+ON k_sol_pool_admin_events (transaction_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates index on `k_sol_pool_admin_events(pool_id)`.
+async fn create_idx_pool_admin_events_pool_id(pool: &sqlx::SqlitePool) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_idx_pool_admin_events_pool_id",
+        r#"
+CREATE INDEX IF NOT EXISTS idx_pool_admin_events_pool_id
+ON k_sol_pool_admin_events (pool_id)
+        "#,
+    )
+    .await;
+}
+
+/// Creates partial unique index on `k_sol_pool_admin_events(decoded_event_id)`.
+async fn create_uix_pool_admin_events_decoded_event_id(
+    pool: &sqlx::SqlitePool,
+) -> Result<(), crate::Error> {
+    return execute_sqlite_schema_statement(
+        pool,
+        "create_uix_pool_admin_events_decoded_event_id",
+        r#"
+CREATE UNIQUE INDEX IF NOT EXISTS uix_pool_admin_events_decoded_event_id
+ON k_sol_pool_admin_events (decoded_event_id)
+WHERE decoded_event_id IS NOT NULL
+        "#,
+    )
+    .await;
+}
diff --git a/kb_lib/src/detect/solana_ws.rs b/kb_lib/src/detect/solana_ws.rs
index 69a9364..643e587 100644
--- a/kb_lib/src/detect/solana_ws.rs
+++ b/kb_lib/src/detect/solana_ws.rs
@@ -155,8 +155,8 @@ impl SolanaWsDetectionService {
             Some(token_program) => token_program,
             None => return Ok(None),
         };
-        if token_program != crate::SPL_TOKEN_PROGRAM_ID.to_string()
-            && token_program != crate::SPL_TOKEN_2022_PROGRAM_ID.to_string()
+        if token_program.as_str() != crate::SPL_TOKEN_PROGRAM_ID
+            && token_program.as_str() != crate::SPL_TOKEN_2022_PROGRAM_ID
         {
             return Ok(None);
         }
@@ -181,7 +181,7 @@ impl SolanaWsDetectionService {
         let slot =
             extract_slot_from_result(notification.method.as_str(), &notification.params.result);
         let payload = build_notification_payload(notification);
-        let is_quote_token = mint == crate::WSOL_MINT_ID.to_string();
+        let is_quote_token = mint.as_str() == crate::WSOL_MINT_ID;
         let input = crate::DetectionTokenCandidateInput::new(
             mint,
             None,
@@ -230,8 +230,8 @@ impl SolanaWsDetectionService {
             Some(owner) => owner,
             None => return Ok(None),
         };
-        if owner == crate::SPL_TOKEN_PROGRAM_ID.to_string()
-            || owner == crate::SPL_TOKEN_2022_PROGRAM_ID.to_string()
+        if owner.as_str() == crate::SPL_TOKEN_PROGRAM_ID
+            || owner.as_str() == crate::SPL_TOKEN_2022_PROGRAM_ID
         {
             return Ok(None);
         }
@@ -603,10 +603,10 @@ fn build_signal_kind_for_notification(
                 }
                 let owner_option = extract_account_owner(account_value);
                 if let Some(owner) = owner_option {
-                    if owner == crate::SPL_TOKEN_PROGRAM_ID.to_string() {
+                    if owner.as_str() == crate::SPL_TOKEN_PROGRAM_ID {
                         return "signal.account_notification.spl_token".to_string();
                     }
-                    if owner == crate::SPL_TOKEN_2022_PROGRAM_ID.to_string() {
+                    if owner.as_str() == crate::SPL_TOKEN_2022_PROGRAM_ID {
                         return "signal.account_notification.spl_token_2022".to_string();
                     }
                 }
@@ -650,10 +650,10 @@ fn build_signal_kind_for_notification(
                 Some(owner) => owner,
                 None => return "signal.program_notification.generic".to_string(),
             };
-            if owner == crate::SPL_TOKEN_PROGRAM_ID.to_string() {
+            if owner.as_str() == crate::SPL_TOKEN_PROGRAM_ID {
                 return "signal.program_notification.spl_token".to_string();
             }
-            if owner == crate::SPL_TOKEN_2022_PROGRAM_ID.to_string() {
+            if owner.as_str() == crate::SPL_TOKEN_2022_PROGRAM_ID {
                 return "signal.program_notification.spl_token_2022".to_string();
             }
             return "signal.program_notification.generic".to_string();
diff --git a/kb_lib/src/dex_catalog.rs b/kb_lib/src/dex_catalog.rs
new file mode 100644
index 0000000..ee204e7
--- /dev/null
+++ b/kb_lib/src/dex_catalog.rs
@@ -0,0 +1,295 @@
+// file: kb_lib/src/dex_catalog.rs
+
+//! Internal DEX catalog and persistence helpers.
+//!
+//! This module centralizes known DEX metadata used by detection,
+//! decoding and future launch-surface integrations.
+//!
+//! It does not decode instructions and does not classify events.
+
+/// Static metadata for one known DEX entry.
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub(crate) struct DexCatalogItem {
+    /// Stable internal DEX code.
+    pub(crate) code: &'static str,
+    /// Human-readable DEX name.
+    pub(crate) name: &'static str,
+    /// Main Solana program id.
+    pub(crate) program_id: std::option::Option<&'static str>,
+    /// Optional router program id.
+    pub(crate) router_program_id: std::option::Option<&'static str>,
+    /// Whether this DEX is currently enabled for detection.
+    pub(crate) is_enabled: bool,
+}
+
+/// Returns metadata for one known DEX or launch-backed swap surface.
+pub(crate) fn dex_catalog_item_by_code(
+    code: &str,
+) -> std::option::Option<crate::dex_catalog::DexCatalogItem> {
+    match code {
+        "raydium" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "raydium",
+                name: "Raydium AMM v4",
+                program_id: Some(crate::RAYDIUM_AMM_V4_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        "raydium_cpmm" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "raydium_cpmm",
+                name: "Raydium CPMM",
+                program_id: Some(crate::RAYDIUM_CPMM_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        "raydium_clmm" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "raydium_clmm",
+                name: "Raydium CLMM",
+                program_id: Some(crate::RAYDIUM_CLMM_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        "pump_fun" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "pump_fun",
+                name: "Pump.fun",
+                program_id: Some(crate::PUMP_FUN_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        "pump_swap" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "pump_swap",
+                name: "PumpSwap",
+                program_id: Some(crate::PUMP_SWAP_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        "meteora_dbc" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "meteora_dbc",
+                name: "Meteora DBC",
+                program_id: Some(crate::METEORA_DBC_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        "meteora_damm_v1" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "meteora_damm_v1",
+                name: "Meteora DAMM v1",
+                program_id: Some(crate::METEORA_DAMM_V1_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        "meteora_damm_v2" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "meteora_damm_v2",
+                name: "Meteora DAMM v2",
+                program_id: Some(crate::METEORA_DAMM_V2_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        "orca_whirlpools" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "orca_whirlpools",
+                name: "Orca Whirlpools",
+                program_id: Some(crate::ORCA_WHIRLPOOLS_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        "fluxbeam" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "fluxbeam",
+                name: "FluxBeam",
+                program_id: Some(crate::FLUXBEAM_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        "dexlab" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "dexlab",
+                name: "DexLab Swap/Pool",
+                program_id: Some(crate::DEXLAB_PROGRAM_ID),
+                router_program_id: None,
+                is_enabled: true,
+            });
+        },
+        // Planned launch/swap surfaces.
+        //
+        // These entries are intentionally present before decoder support so that
+        // the roadmap can evolve without duplicating DEX metadata later.
+        //
+        // Program ids should be filled only after validation against live
+        // transactions and official or otherwise trustworthy references.
+        "raydium_launchlab" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "raydium_launchlab",
+                name: "Raydium LaunchLab",
+                program_id: None,
+                router_program_id: None,
+                is_enabled: false,
+            });
+        },
+        "letsbonk" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "letsbonk",
+                name: "LetsBonk / Bonk.fun",
+                program_id: None,
+                router_program_id: None,
+                is_enabled: false,
+            });
+        },
+        "boop_fun" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "boop_fun",
+                name: "Boop.fun",
+                program_id: None,
+                router_program_id: None,
+                is_enabled: false,
+            });
+        },
+        "moonshot" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "moonshot",
+                name: "Moonshot",
+                program_id: None,
+                router_program_id: None,
+                is_enabled: false,
+            });
+        },
+        "believe" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "believe",
+                name: "Believe",
+                program_id: None,
+                router_program_id: None,
+                is_enabled: false,
+            });
+        },
+        "heaven" => {
+            return Some(crate::dex_catalog::DexCatalogItem {
+                code: "heaven",
+                name: "Heaven",
+                program_id: None,
+                router_program_id: None,
+                is_enabled: false,
+            });
+        },
+        _ => return None,
+    }
+}
+
+/// Ensures that one known DEX exists in storage and returns its internal id.
+pub(crate) async fn ensure_known_dex(
+    database: &crate::Database,
+    code: &str,
+) -> Result<i64, crate::Error> {
+    let dex_result = crate::query_dexs_get_by_code(database, code).await;
+    let dex_option = match dex_result {
+        Ok(dex_option) => dex_option,
+        Err(error) => return Err(error),
+    };
+    match dex_option {
+        Some(dex) => match dex.id {
+            Some(dex_id) => return Ok(dex_id),
+            None => {
+                return Err(crate::Error::InvalidState(format!("{} dex has no internal id", code)));
+            },
+        },
+        None => {
+            let catalog_item_option = crate::dex_catalog::dex_catalog_item_by_code(code);
+            let catalog_item = match catalog_item_option {
+                Some(catalog_item) => catalog_item,
+                None => {
+                    return Err(crate::Error::InvalidState(format!(
+                        "unknown dex catalog code '{}'",
+                        code
+                    )));
+                },
+            };
+            let program_id = match catalog_item.program_id {
+                Some(program_id) => Some(program_id.to_string()),
+                None => None,
+            };
+            let router_program_id = match catalog_item.router_program_id {
+                Some(router_program_id) => Some(router_program_id.to_string()),
+                None => None,
+            };
+            let dex_dto = crate::DexDto::new(
+                catalog_item.code.to_string(),
+                catalog_item.name.to_string(),
+                program_id,
+                router_program_id,
+                catalog_item.is_enabled,
+            );
+            return crate::query_dexs_upsert(database, &dex_dto).await;
+        },
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn known_active_dexes_are_available_from_catalog() {
+        let codes = [
+            "raydium",
+            "raydium_cpmm",
+            "raydium_clmm",
+            "pump_fun",
+            "pump_swap",
+            "meteora_dbc",
+            "meteora_damm_v1",
+            "meteora_damm_v2",
+            "orca_whirlpools",
+            "fluxbeam",
+            "dexlab",
+        ];
+
+        for code in codes {
+            let item_option = crate::dex_catalog::dex_catalog_item_by_code(code);
+            let item = match item_option {
+                Some(item) => item,
+                None => {
+                    panic!("expected known dex catalog item for '{}'", code);
+                },
+            };
+            assert_eq!(item.code, code);
+            assert!(item.is_enabled);
+            assert!(item.program_id.is_some());
+        }
+    }
+
+    #[test]
+    fn planned_launch_surfaces_are_present_but_disabled() {
+        let codes = ["raydium_launchlab", "letsbonk", "boop_fun", "moonshot", "believe", "heaven"];
+        for code in codes {
+            let item_option = crate::dex_catalog::dex_catalog_item_by_code(code);
+            let item = match item_option {
+                Some(item) => item,
+                None => {
+                    panic!("expected planned launch surface catalog item for '{}'", code);
+                },
+            };
+            assert_eq!(item.code, code);
+            assert!(!item.is_enabled);
+        }
+    }
+
+    #[test]
+    fn unknown_dex_code_is_not_silently_accepted() {
+        let item_option = crate::dex_catalog::dex_catalog_item_by_code("zora_solana");
+        assert!(item_option.is_none());
+    }
+}
diff --git a/kb_lib/src/dex_decode.rs b/kb_lib/src/dex_decode.rs
index da8503b..5bbd0f8 100644
--- a/kb_lib/src/dex_decode.rs
+++ b/kb_lib/src/dex_decode.rs
@@ -37,233 +37,145 @@ impl DexDecodeService {
         };
     }
 
-    async fn decode_and_persist_raydium_clmm_events(
-        &self,
-        transaction: &crate::ChainTransactionDto,
-        instructions: &[crate::ChainInstructionDto],
-    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
-        let mut persisted = std::vec::Vec::new();
-        for instruction in instructions {
-            let program_id = match instruction.program_id.as_ref() {
-                Some(program_id) => program_id,
-                None => continue,
-            };
-            if program_id.as_str() != crate::RAYDIUM_CLMM_PROGRAM_ID {
-                continue;
-            }
-            let data_json = match instruction.data_json.as_ref() {
-                Some(data_json) => data_json,
-                None => continue,
-            };
-            let decoded_events = crate::decode_raydium_clmm_instruction(
-                instruction.accounts_json.as_str(),
-                data_json.as_str(),
-            );
-            for decoded_event in &decoded_events {
-                let persist_result =
-                    self.persist_raydium_clmm_event(transaction, instruction, decoded_event).await;
-                let persisted_event = match persist_result {
-                    Ok(persisted_event) => persisted_event,
-                    Err(error) => return Err(error),
-                };
-                persisted.push(persisted_event);
-            }
-        }
-        return Ok(persisted);
-    }
-
     /// Decodes one projected transaction and persists the decoded events.
     pub async fn decode_transaction_by_signature(
         &self,
         signature: &str,
     ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
-        let transaction_result =
-            crate::query_chain_transactions_get_by_signature(self.database.as_ref(), signature)
-                .await;
-        let transaction_option = match transaction_result {
-            Ok(transaction_option) => transaction_option,
-            Err(error) => return Err(error),
-        };
-        let transaction = match transaction_option {
-            Some(transaction) => transaction,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "cannot decode unknown chain transaction '{}'",
-                    signature
-                )));
-            },
-        };
-        let transaction_id_option = transaction.id;
-        let transaction_id = match transaction_id_option {
-            Some(transaction_id) => transaction_id,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "chain transaction '{}' has no internal id",
-                    signature
-                )));
-            },
-        };
-        let instructions_result = crate::query_chain_instructions_list_by_transaction_id(
+        let context_result = crate::dex_decode_context::load_dex_decode_transaction_context(
             self.database.as_ref(),
-            transaction_id,
+            signature,
         )
         .await;
-        let instructions = match instructions_result {
-            Ok(instructions) => instructions,
+        let context = match context_result {
+            Ok(context) => context,
             Err(error) => return Err(error),
         };
+        let transaction = context.transaction;
+        let instructions = context.instructions;
         let mut persisted = std::vec::Vec::new();
-        let raydium_decoded_result =
-            self.raydium_amm_v4_decoder.decode_transaction(&transaction, &instructions);
-        let raydium_decoded = match raydium_decoded_result {
-            Ok(raydium_decoded) => raydium_decoded,
-            Err(error) => return Err(error),
-        };
-        for decoded_event in &raydium_decoded {
-            let persist_result =
-                self.persist_raydium_amm_v4_event(&transaction, decoded_event).await;
-            let persisted_event = match persist_result {
-                Ok(persisted_event) => persisted_event,
-                Err(error) => return Err(error),
-            };
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_raydium_amm_v4_events(&transaction, &instructions).await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
-        let raydium_cpmm_persisted_result =
-            self.decode_and_persist_raydium_cpmm_events(&transaction, &instructions).await;
-        let raydium_cpmm_persisted = match raydium_cpmm_persisted_result {
-            Ok(raydium_cpmm_persisted) => raydium_cpmm_persisted,
-            Err(error) => return Err(error),
-        };
-        for persisted_event in raydium_cpmm_persisted {
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_raydium_cpmm_events(&transaction, &instructions).await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
-        let raydium_clmm_persisted_result =
-            self.decode_and_persist_raydium_clmm_events(&transaction, &instructions).await;
-        let raydium_clmm_persisted = match raydium_clmm_persisted_result {
-            Ok(raydium_clmm_persisted) => raydium_clmm_persisted,
-            Err(error) => return Err(error),
-        };
-        for persisted_event in raydium_clmm_persisted {
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_raydium_clmm_events(&transaction, &instructions).await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
-        let pump_fun_decoded_result =
-            self.pump_fun_decoder.decode_transaction(&transaction, &instructions);
-        let pump_fun_decoded = match pump_fun_decoded_result {
-            Ok(pump_fun_decoded) => pump_fun_decoded,
-            Err(error) => return Err(error),
-        };
-        for decoded_event in &pump_fun_decoded {
-            let persist_result = self.persist_pump_fun_event(&transaction, decoded_event).await;
-            let persisted_event = match persist_result {
-                Ok(persisted_event) => persisted_event,
-                Err(error) => return Err(error),
-            };
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_pump_fun_events(&transaction, &instructions).await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
-        let pump_swap_decoded_result =
-            self.pump_swap_decoder.decode_transaction(&transaction, &instructions);
-        let pump_swap_decoded = match pump_swap_decoded_result {
-            Ok(pump_swap_decoded) => pump_swap_decoded,
-            Err(error) => return Err(error),
-        };
-        for decoded_event in &pump_swap_decoded {
-            let persist_result = self.persist_pump_swap_event(&transaction, decoded_event).await;
-            let persisted_event = match persist_result {
-                Ok(persisted_event) => persisted_event,
-                Err(error) => return Err(error),
-            };
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_pump_swap_events(&transaction, &instructions).await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
-        let meteora_dbc_decoded_result =
-            self.meteora_dbc_decoder.decode_transaction(&transaction, &instructions);
-        let meteora_dbc_decoded = match meteora_dbc_decoded_result {
-            Ok(meteora_dbc_decoded) => meteora_dbc_decoded,
-            Err(error) => return Err(error),
-        };
-        for decoded_event in &meteora_dbc_decoded {
-            let persist_result = self.persist_meteora_dbc_event(&transaction, decoded_event).await;
-            let persisted_event = match persist_result {
-                Ok(persisted_event) => persisted_event,
-                Err(error) => return Err(error),
-            };
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_meteora_dbc_events(&transaction, &instructions).await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
-        let meteora_damm_v2_decoded_result =
-            self.meteora_damm_v2_decoder.decode_transaction(&transaction, &instructions);
-        let meteora_damm_v2_decoded = match meteora_damm_v2_decoded_result {
-            Ok(meteora_damm_v2_decoded) => meteora_damm_v2_decoded,
-            Err(error) => return Err(error),
-        };
-        for decoded_event in &meteora_damm_v2_decoded {
-            let persist_result =
-                self.persist_meteora_damm_v2_event(&transaction, decoded_event).await;
-            let persisted_event = match persist_result {
-                Ok(persisted_event) => persisted_event,
-                Err(error) => return Err(error),
-            };
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_meteora_damm_v2_events(&transaction, &instructions)
+                .await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
-        let meteora_damm_v1_decoded_result =
-            self.meteora_damm_v1_decoder.decode_transaction(&transaction, &instructions);
-        let meteora_damm_v1_decoded = match meteora_damm_v1_decoded_result {
-            Ok(meteora_damm_v1_decoded) => meteora_damm_v1_decoded,
-            Err(error) => return Err(error),
-        };
-        for decoded_event in &meteora_damm_v1_decoded {
-            let persist_result =
-                self.persist_meteora_damm_v1_event(&transaction, decoded_event).await;
-            let persisted_event = match persist_result {
-                Ok(persisted_event) => persisted_event,
-                Err(error) => return Err(error),
-            };
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_meteora_damm_v1_events(&transaction, &instructions)
+                .await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
-        let orca_whirlpools_decoded_result =
-            self.orca_whirlpools_decoder.decode_transaction(&transaction, &instructions);
-        let orca_whirlpools_decoded = match orca_whirlpools_decoded_result {
-            Ok(orca_whirlpools_decoded) => orca_whirlpools_decoded,
-            Err(error) => return Err(error),
-        };
-        for decoded_event in &orca_whirlpools_decoded {
-            let persist_result =
-                self.persist_orca_whirlpools_event(&transaction, decoded_event).await;
-            let persisted_event = match persist_result {
-                Ok(persisted_event) => persisted_event,
-                Err(error) => return Err(error),
-            };
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_orca_whirlpools_events(&transaction, &instructions)
+                .await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
-        let fluxbeam_decoded_result =
-            self.fluxbeam_decoder.decode_transaction(&transaction, &instructions);
-        let fluxbeam_decoded = match fluxbeam_decoded_result {
-            Ok(fluxbeam_decoded) => fluxbeam_decoded,
-            Err(error) => return Err(error),
-        };
-        for decoded_event in &fluxbeam_decoded {
-            let persist_result = self.persist_fluxbeam_event(&transaction, decoded_event).await;
-            let persisted_event = match persist_result {
-                Ok(persisted_event) => persisted_event,
-                Err(error) => return Err(error),
-            };
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_fluxbeam_events(&transaction, &instructions).await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
-        let dexlab_decoded_result =
-            self.dexlab_decoder.decode_transaction(&transaction, &instructions);
-        let dexlab_decoded = match dexlab_decoded_result {
-            Ok(dexlab_decoded) => dexlab_decoded,
-            Err(error) => return Err(error),
-        };
-        for decoded_event in &dexlab_decoded {
-            let persist_result = self.persist_dexlab_event(&transaction, decoded_event).await;
-            let persisted_event = match persist_result {
-                Ok(persisted_event) => persisted_event,
-                Err(error) => return Err(error),
-            };
-            persisted.push(persisted_event);
+        let append_result = append_persisted_events_result(
+            &mut persisted,
+            self.decode_and_persist_dexlab_events(&transaction, &instructions).await,
+        );
+        if let Err(error) = append_result {
+            return Err(error);
         }
         return Ok(persisted);
     }
 
+    async fn materialize_named_dex_event(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        transaction_id: i64,
+        instruction_id: i64,
+        protocol_name: &str,
+        program_id: std::string::String,
+        event_kind: &str,
+        pool_account: std::option::Option<std::string::String>,
+        market_account: std::option::Option<std::string::String>,
+        token_a_mint: std::option::Option<std::string::String>,
+        token_b_mint: std::option::Option<std::string::String>,
+        lp_mint: std::option::Option<std::string::String>,
+        payload_json: serde_json::Value,
+    ) -> Result<crate::DexDecodedEventDto, crate::Error> {
+        let input = crate::dex_decoded_event_materialization::DexDecodedEventMaterializationInput {
+            database: self.database.as_ref(),
+            persistence: &self.persistence,
+            transaction,
+            transaction_id,
+            instruction_id: Some(instruction_id),
+            protocol_name: protocol_name.to_string(),
+            program_id,
+            event_kind: event_kind.to_string(),
+            pool_account,
+            market_account,
+            token_a_mint,
+            token_b_mint,
+            lp_mint,
+            enrichment_payload_json: payload_json.clone(),
+            observation_payload_json: payload_json,
+            observation_kind: format!("dex.{event_kind}"),
+            signal_kind: format!("signal.dex.{event_kind}"),
+            missing_after_upsert_message: "decoded event disappeared after upsert".to_string(),
+        };
+        return crate::dex_decoded_event_materialization::materialize_dex_decoded_event(input)
+            .await;
+    }
+
     async fn persist_dexlab_event(
         &self,
         transaction: &crate::ChainTransactionDto,
@@ -271,190 +183,40 @@ impl DexDecodeService {
     ) -> Result<crate::DexDecodedEventDto, crate::Error> {
         match decoded_event {
             crate::DexlabDecodedEvent::CreatePool(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "dexlab",
-                    "dexlab.create_pool",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "dexlab.create_pool",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "dexlab".to_string(),
-                    event.program_id.clone(),
-                    "dexlab.create_pool".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    None,
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "dexlab.create_pool",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.dexlab.create_pool".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.dexlab.create_pool".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "dexlab",
+                        event.program_id.clone(),
+                        "dexlab.create_pool",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        None,
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
             crate::DexlabDecodedEvent::Swap(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "dexlab",
-                    "dexlab.swap",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "dexlab.swap",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "dexlab".to_string(),
-                    event.program_id.clone(),
-                    "dexlab.swap".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    None,
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "dexlab.swap",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.dexlab.swap".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.dexlab.swap".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "dexlab",
+                        event.program_id.clone(),
+                        "dexlab.swap",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        None,
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
         }
     }
@@ -466,190 +228,40 @@ impl DexDecodeService {
     ) -> Result<crate::DexDecodedEventDto, crate::Error> {
         match decoded_event {
             crate::FluxbeamDecodedEvent::CreatePool(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "fluxbeam",
-                    "fluxbeam.create_pool",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "fluxbeam.create_pool",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "fluxbeam".to_string(),
-                    event.program_id.clone(),
-                    "fluxbeam.create_pool".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    event.lp_mint.clone(),
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "fluxbeam.create_pool",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.fluxbeam.create_pool".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.fluxbeam.create_pool".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "fluxbeam",
+                        event.program_id.clone(),
+                        "fluxbeam.create_pool",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        event.lp_mint.clone(),
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
             crate::FluxbeamDecodedEvent::Swap(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "fluxbeam",
-                    "fluxbeam.swap",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "fluxbeam.swap",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "fluxbeam".to_string(),
-                    event.program_id.clone(),
-                    "fluxbeam.swap".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    None,
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "fluxbeam.swap",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.fluxbeam.swap".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.fluxbeam.swap".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "fluxbeam",
+                        event.program_id.clone(),
+                        "fluxbeam.swap",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        None,
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
         }
     }
@@ -661,190 +273,40 @@ impl DexDecodeService {
     ) -> Result<crate::DexDecodedEventDto, crate::Error> {
         match decoded_event {
             crate::OrcaWhirlpoolsDecodedEvent::CreatePool(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "orca_whirlpools",
-                    "orca_whirlpools.create_pool",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "orca_whirlpools.create_pool",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "orca_whirlpools".to_string(),
-                    event.program_id.clone(),
-                    "orca_whirlpools.create_pool".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    event.config_account.clone(),
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "orca_whirlpools.create_pool",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.orca_whirlpools.create_pool".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.orca_whirlpools.create_pool".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "orca_whirlpools",
+                        event.program_id.clone(),
+                        "orca_whirlpools.create_pool",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        event.config_account.clone(),
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
             crate::OrcaWhirlpoolsDecodedEvent::Swap(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "orca_whirlpools",
-                    "orca_whirlpools.swap",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "orca_whirlpools.swap",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "orca_whirlpools".to_string(),
-                    event.program_id.clone(),
-                    "orca_whirlpools.swap".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    None,
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "orca_whirlpools.swap",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.orca_whirlpools.swap".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.orca_whirlpools.swap".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "orca_whirlpools",
+                        event.program_id.clone(),
+                        "orca_whirlpools.swap",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        None,
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
         }
     }
@@ -856,190 +318,40 @@ impl DexDecodeService {
     ) -> Result<crate::DexDecodedEventDto, crate::Error> {
         match decoded_event {
             crate::MeteoraDammV1DecodedEvent::CreatePool(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "meteora_damm_v1",
-                    "meteora_damm_v1.create_pool",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v1.create_pool",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v1".to_string(),
-                    event.program_id.clone(),
-                    "meteora_damm_v1.create_pool".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    event.config_account.clone(),
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v1.create_pool",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.meteora_damm_v1.create_pool".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.meteora_damm_v1.create_pool".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "meteora_damm_v1",
+                        event.program_id.clone(),
+                        "meteora_damm_v1.create_pool",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        event.config_account.clone(),
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
             crate::MeteoraDammV1DecodedEvent::Swap(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "meteora_damm_v1",
-                    "meteora_damm_v1.swap",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v1.swap",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v1".to_string(),
-                    event.program_id.clone(),
-                    "meteora_damm_v1.swap".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    None,
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v1.swap",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.meteora_damm_v1.swap".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.meteora_damm_v1.swap".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "meteora_damm_v1",
+                        event.program_id.clone(),
+                        "meteora_damm_v1.swap",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        None,
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
         }
     }
@@ -1051,190 +363,40 @@ impl DexDecodeService {
     ) -> Result<crate::DexDecodedEventDto, crate::Error> {
         match decoded_event {
             crate::MeteoraDammV2DecodedEvent::CreatePool(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "meteora_damm_v2",
-                    "meteora_damm_v2.create_pool",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v2.create_pool",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v2".to_string(),
-                    event.program_id.clone(),
-                    "meteora_damm_v2.create_pool".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    event.config_account.clone(),
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v2.create_pool",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.meteora_damm_v2.create_pool".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.meteora_damm_v2.create_pool".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "meteora_damm_v2",
+                        event.program_id.clone(),
+                        "meteora_damm_v2.create_pool",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        event.config_account.clone(),
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
             crate::MeteoraDammV2DecodedEvent::Swap(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "meteora_damm_v2",
-                    "meteora_damm_v2.swap",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v2.swap",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v2".to_string(),
-                    event.program_id.clone(),
-                    "meteora_damm_v2.swap".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    None,
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_damm_v2.swap",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.meteora_damm_v2.swap".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.meteora_damm_v2.swap".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "meteora_damm_v2",
+                        event.program_id.clone(),
+                        "meteora_damm_v2.swap",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        None,
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
         }
     }
@@ -1246,190 +408,40 @@ impl DexDecodeService {
     ) -> Result<crate::DexDecodedEventDto, crate::Error> {
         match decoded_event {
             crate::MeteoraDbcDecodedEvent::CreatePool(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "meteora_dbc",
-                    "meteora_dbc.create_pool",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_dbc.create_pool",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_dbc".to_string(),
-                    event.program_id.clone(),
-                    "meteora_dbc.create_pool".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    event.config_account.clone(),
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_dbc.create_pool",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.meteora_dbc.create_pool".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.meteora_dbc.create_pool".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "meteora_dbc",
+                        event.program_id.clone(),
+                        "meteora_dbc.create_pool",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        event.config_account.clone(),
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
             crate::MeteoraDbcDecodedEvent::Swap(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "meteora_dbc",
-                    "meteora_dbc.swap",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_dbc.swap",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_dbc".to_string(),
-                    event.program_id.clone(),
-                    "meteora_dbc.swap".to_string(),
-                    event.pool_account.clone(),
-                    None,
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    None,
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "meteora_dbc.swap",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.meteora_dbc.swap".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.meteora_dbc.swap".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "meteora_dbc",
+                        event.program_id.clone(),
+                        "meteora_dbc.swap",
+                        event.pool_account.clone(),
+                        None,
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        None,
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
         }
     }
@@ -1441,136 +453,26 @@ impl DexDecodeService {
     ) -> Result<crate::DexDecodedEventDto, crate::Error> {
         match decoded_event {
             crate::RaydiumAmmV4DecodedEvent::Initialize2Pool(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "raydium_amm_v4",
-                    "raydium_amm_v4.initialize2_pool",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "raydium_amm_v4.initialize2_pool",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "raydium_amm_v4".to_string(),
-                    event.program_id.clone(),
-                    "raydium_amm_v4.initialize2_pool".to_string(),
-                    event.pool_account.clone(),
-                    event.lp_mint.clone(),
-                    event.token_a_mint.clone(),
-                    event.token_b_mint.clone(),
-                    event.market_account.clone(),
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "raydium_amm_v4.initialize2_pool",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.raydium_amm_v4.initialize2_pool".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.raydium_amm_v4.initialize2_pool".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "raydium_amm_v4",
+                        event.program_id.clone(),
+                        "raydium_amm_v4.initialize2_pool",
+                        event.pool_account.clone(),
+                        event.market_account.clone(),
+                        event.token_a_mint.clone(),
+                        event.token_b_mint.clone(),
+                        event.lp_mint.clone(),
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
         }
     }
 
-    async fn decode_and_persist_raydium_cpmm_events(
-        &self,
-        transaction: &crate::ChainTransactionDto,
-        instructions: &[crate::ChainInstructionDto],
-    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
-        let mut persisted = std::vec::Vec::new();
-        for instruction in instructions {
-            let program_id = match instruction.program_id.as_ref() {
-                Some(program_id) => program_id,
-                None => continue,
-            };
-            if program_id.as_str() != crate::RAYDIUM_CPMM_PROGRAM_ID {
-                continue;
-            }
-            let data_json = match instruction.data_json.as_ref() {
-                Some(data_json) => data_json,
-                None => continue,
-            };
-            let decoded_events = crate::decode_raydium_cpmm_instruction(
-                instruction.accounts_json.as_str(),
-                data_json.as_str(),
-            );
-            for decoded_event in &decoded_events {
-                let persist_result =
-                    self.persist_raydium_cpmm_event(transaction, instruction, decoded_event).await;
-                let persisted_event = match persist_result {
-                    Ok(persisted_event) => persisted_event,
-                    Err(error) => return Err(error),
-                };
-                persisted.push(persisted_event);
-            }
-        }
-        return Ok(persisted);
-    }
-
     async fn persist_raydium_clmm_event(
         &self,
         transaction: &crate::ChainTransactionDto,
@@ -1604,107 +506,31 @@ impl DexDecodeService {
                 ));
             },
         };
-        let payload_json_result = enrich_serialized_dex_decoded_payload(
+        let payload_value_result = enriched_raydium_payload_value(
             "raydium_clmm",
             event_kind.as_str(),
             raw_payload_json.as_str(),
         );
-        let payload_json = match payload_json_result {
-            Ok(payload_json) => payload_json,
+        let payload_value = match payload_value_result {
+            Ok(payload_value) => payload_value,
             Err(error) => return Err(error),
         };
-        let existing_result = crate::query_dex_decoded_events_get_by_key(
-            self.database.as_ref(),
-            transaction_id,
-            Some(instruction_id),
-            event_kind.as_str(),
-        )
-        .await;
-        let existing_option = match existing_result {
-            Ok(existing_option) => existing_option,
-            Err(error) => return Err(error),
-        };
-        let already_present = existing_option.is_some();
-        let dto = crate::DexDecodedEventDto::new(
-            transaction_id,
-            Some(instruction_id),
-            "raydium_clmm".to_string(),
-            crate::RAYDIUM_CLMM_PROGRAM_ID.to_string(),
-            event_kind.clone(),
-            Some(decoded_event.pool_account().to_string()),
-            None,
-            Some(decoded_event.base_mint().to_string()),
-            Some(decoded_event.quote_mint().to_string()),
-            None,
-            payload_json.clone(),
-        );
-        let upsert_result =
-            crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-        if let Err(error) = upsert_result {
-            return Err(error);
-        }
-        let fetched_result = crate::query_dex_decoded_events_get_by_key(
-            self.database.as_ref(),
-            transaction_id,
-            Some(instruction_id),
-            event_kind.as_str(),
-        )
-        .await;
-        let fetched_option = match fetched_result {
-            Ok(fetched_option) => fetched_option,
-            Err(error) => return Err(error),
-        };
-        let fetched = match fetched_option {
-            Some(fetched) => fetched,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded raydium clmm event disappeared after upsert".to_string(),
-                ));
-            },
-        };
-        if !already_present {
-            let payload_value_result =
-                serde_json::from_str::<serde_json::Value>(payload_json.as_str());
-            let payload_value = match payload_value_result {
-                Ok(payload_value) => payload_value,
-                Err(error) => {
-                    return Err(crate::Error::Json(format!(
-                        "cannot parse raydium clmm payload after serialization: {}",
-                        error
-                    )));
-                },
-            };
-            let observation_result = self
-                .persistence
-                .record_observation(&crate::DetectionObservationInput::new(
-                    format!("dex.{}", event_kind),
-                    crate::ObservationSourceKind::HttpRpc,
-                    transaction.source_endpoint_name.clone(),
-                    transaction.signature.clone(),
-                    transaction.slot,
-                    payload_value.clone(),
-                ))
-                .await;
-            let observation_id = match observation_result {
-                Ok(observation_id) => observation_id,
-                Err(error) => return Err(error),
-            };
-            let signal_result = self
-                .persistence
-                .record_signal(&crate::DetectionSignalInput::new(
-                    format!("signal.dex.{}", event_kind),
-                    crate::AnalysisSignalSeverity::Low,
-                    transaction.signature.clone(),
-                    Some(observation_id),
-                    None,
-                    payload_value,
-                ))
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(fetched);
+        return self
+            .materialize_named_dex_event(
+                transaction,
+                transaction_id,
+                instruction_id,
+                "raydium_clmm",
+                crate::RAYDIUM_CLMM_PROGRAM_ID.to_string(),
+                event_kind.as_str(),
+                Some(decoded_event.pool_account().to_string()),
+                None,
+                Some(decoded_event.base_mint().to_string()),
+                Some(decoded_event.quote_mint().to_string()),
+                None,
+                payload_value,
+            )
+            .await;
     }
 
     async fn persist_raydium_cpmm_event(
@@ -1740,107 +566,31 @@ impl DexDecodeService {
                 ));
             },
         };
-        let payload_json_result = enrich_serialized_dex_decoded_payload(
+        let payload_value_result = enriched_raydium_payload_value(
             "raydium_cpmm",
             event_kind.as_str(),
             raw_payload_json.as_str(),
         );
-        let payload_json = match payload_json_result {
-            Ok(payload_json) => payload_json,
+        let payload_value = match payload_value_result {
+            Ok(payload_value) => payload_value,
             Err(error) => return Err(error),
         };
-        let existing_result = crate::query_dex_decoded_events_get_by_key(
-            self.database.as_ref(),
-            transaction_id,
-            Some(instruction_id),
-            event_kind.as_str(),
-        )
-        .await;
-        let existing_option = match existing_result {
-            Ok(existing_option) => existing_option,
-            Err(error) => return Err(error),
-        };
-        let already_present = existing_option.is_some();
-        let dto = crate::DexDecodedEventDto::new(
-            transaction_id,
-            Some(instruction_id),
-            "raydium_cpmm".to_string(),
-            crate::RAYDIUM_CPMM_PROGRAM_ID.to_string(),
-            event_kind.clone(),
-            Some(decoded_event.pool_account().to_string()),
-            None,
-            Some(decoded_event.base_mint().to_string()),
-            Some(decoded_event.quote_mint().to_string()),
-            None,
-            payload_json.clone(),
-        );
-        let upsert_result =
-            crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-        if let Err(error) = upsert_result {
-            return Err(error);
-        }
-        let fetched_result = crate::query_dex_decoded_events_get_by_key(
-            self.database.as_ref(),
-            transaction_id,
-            Some(instruction_id),
-            event_kind.as_str(),
-        )
-        .await;
-        let fetched_option = match fetched_result {
-            Ok(fetched_option) => fetched_option,
-            Err(error) => return Err(error),
-        };
-        let fetched = match fetched_option {
-            Some(fetched) => fetched,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded raydium cpmm event disappeared after upsert".to_string(),
-                ));
-            },
-        };
-        if !already_present {
-            let payload_value_result =
-                serde_json::from_str::<serde_json::Value>(payload_json.as_str());
-            let payload_value = match payload_value_result {
-                Ok(payload_value) => payload_value,
-                Err(error) => {
-                    return Err(crate::Error::Json(format!(
-                        "cannot parse raydium cpmm payload after serialization: {}",
-                        error
-                    )));
-                },
-            };
-            let observation_result = self
-                .persistence
-                .record_observation(&crate::DetectionObservationInput::new(
-                    format!("dex.{}", event_kind),
-                    crate::ObservationSourceKind::HttpRpc,
-                    transaction.source_endpoint_name.clone(),
-                    transaction.signature.clone(),
-                    transaction.slot,
-                    payload_value.clone(),
-                ))
-                .await;
-            let observation_id = match observation_result {
-                Ok(observation_id) => observation_id,
-                Err(error) => return Err(error),
-            };
-            let signal_result = self
-                .persistence
-                .record_signal(&crate::DetectionSignalInput::new(
-                    format!("signal.dex.{}", event_kind),
-                    crate::AnalysisSignalSeverity::Low,
-                    transaction.signature.clone(),
-                    Some(observation_id),
-                    None,
-                    payload_value,
-                ))
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(fetched);
+        return self
+            .materialize_named_dex_event(
+                transaction,
+                transaction_id,
+                instruction_id,
+                "raydium_cpmm",
+                crate::RAYDIUM_CPMM_PROGRAM_ID.to_string(),
+                event_kind.as_str(),
+                Some(decoded_event.pool_account().to_string()),
+                None,
+                Some(decoded_event.base_mint().to_string()),
+                Some(decoded_event.quote_mint().to_string()),
+                None,
+                payload_value,
+            )
+            .await;
     }
 
     async fn persist_pump_fun_event(
@@ -1850,97 +600,22 @@ impl DexDecodeService {
     ) -> Result<crate::DexDecodedEventDto, crate::Error> {
         match decoded_event {
             crate::PumpFunDecodedEvent::CreateV2Token(event) => {
-                let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-                    "pump_fun",
-                    "pump_fun.create_v2_token",
-                    event.payload_json.clone(),
-                );
-                let payload_json = match payload_json_result {
-                    Ok(payload_json) => payload_json,
-                    Err(error) => return Err(error),
-                };
-                let existing_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "pump_fun.create_v2_token",
-                )
-                .await;
-                let existing_option = match existing_result {
-                    Ok(existing_option) => existing_option,
-                    Err(error) => return Err(error),
-                };
-                let already_present = existing_option.is_some();
-                let dto = crate::DexDecodedEventDto::new(
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "pump_fun".to_string(),
-                    event.program_id.clone(),
-                    "pump_fun.create_v2_token".to_string(),
-                    event.bonding_curve.clone(),
-                    None,
-                    event.mint.clone(),
-                    Some(crate::WSOL_MINT_ID.to_string()),
-                    event.associated_bonding_curve.clone(),
-                    payload_json,
-                );
-                let upsert_result =
-                    crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-                if let Err(error) = upsert_result {
-                    return Err(error);
-                }
-                let fetched_result = crate::query_dex_decoded_events_get_by_key(
-                    self.database.as_ref(),
-                    event.transaction_id,
-                    Some(event.instruction_id),
-                    "pump_fun.create_v2_token",
-                )
-                .await;
-                let fetched_option = match fetched_result {
-                    Ok(fetched_option) => fetched_option,
-                    Err(error) => return Err(error),
-                };
-                let fetched = match fetched_option {
-                    Some(fetched) => fetched,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "decoded event disappeared after upsert".to_string(),
-                        ));
-                    },
-                };
-                if !already_present {
-                    let payload_value = event.payload_json.clone();
-                    let observation_result = self
-                        .persistence
-                        .record_observation(&crate::DetectionObservationInput::new(
-                            "dex.pump_fun.create_v2_token".to_string(),
-                            crate::ObservationSourceKind::HttpRpc,
-                            transaction.source_endpoint_name.clone(),
-                            transaction.signature.clone(),
-                            transaction.slot,
-                            payload_value.clone(),
-                        ))
-                        .await;
-                    let observation_id = match observation_result {
-                        Ok(observation_id) => observation_id,
-                        Err(error) => return Err(error),
-                    };
-                    let signal_result = self
-                        .persistence
-                        .record_signal(&crate::DetectionSignalInput::new(
-                            "signal.dex.pump_fun.create_v2_token".to_string(),
-                            crate::AnalysisSignalSeverity::Low,
-                            transaction.signature.clone(),
-                            Some(observation_id),
-                            None,
-                            payload_value,
-                        ))
-                        .await;
-                    if let Err(error) = signal_result {
-                        return Err(error);
-                    }
-                }
-                return Ok(fetched);
+                return self
+                    .materialize_named_dex_event(
+                        transaction,
+                        event.transaction_id,
+                        event.instruction_id,
+                        "pump_fun",
+                        event.program_id.clone(),
+                        "pump_fun.create_v2_token",
+                        event.bonding_curve.clone(),
+                        None,
+                        event.mint.clone(),
+                        Some(crate::WSOL_MINT_ID.to_string()),
+                        event.associated_bonding_curve.clone(),
+                        event.payload_json.clone(),
+                    )
+                    .await;
             },
             crate::PumpFunDecodedEvent::BuyTrade(event) => {
                 return self
@@ -1975,97 +650,29 @@ impl DexDecodeService {
         signal_kind: &str,
         observation_kind: &str,
     ) -> Result<crate::DexDecodedEventDto, crate::Error> {
-        let payload_json_result = enrich_and_serialize_dex_decoded_payload(
-            "pump_fun",
-            event_kind,
-            event.payload_json.clone(),
-        );
-        let payload_json = match payload_json_result {
-            Ok(payload_json) => payload_json,
-            Err(error) => return Err(error),
+        let input = crate::dex_decoded_event_materialization::DexDecodedEventMaterializationInput {
+            database: self.database.as_ref(),
+            persistence: &self.persistence,
+            transaction,
+            transaction_id: event.transaction_id,
+            instruction_id: Some(event.instruction_id),
+            protocol_name: "pump_fun".to_string(),
+            program_id: event.program_id.clone(),
+            event_kind: event_kind.to_string(),
+            pool_account: event.bonding_curve.clone(),
+            market_account: None,
+            token_a_mint: event.mint.clone(),
+            token_b_mint: Some(crate::WSOL_MINT_ID.to_string()),
+            lp_mint: event.associated_bonding_curve.clone(),
+            enrichment_payload_json: event.payload_json.clone(),
+            observation_payload_json: event.payload_json.clone(),
+            observation_kind: observation_kind.to_string(),
+            signal_kind: signal_kind.to_string(),
+            missing_after_upsert_message: "decoded pump.fun trade event disappeared after upsert"
+                .to_string(),
         };
-        let existing_result = crate::query_dex_decoded_events_get_by_key(
-            self.database.as_ref(),
-            event.transaction_id,
-            Some(event.instruction_id),
-            event_kind,
-        )
-        .await;
-        let existing_option = match existing_result {
-            Ok(existing_option) => existing_option,
-            Err(error) => return Err(error),
-        };
-        let already_present = existing_option.is_some();
-        let dto = crate::DexDecodedEventDto::new(
-            event.transaction_id,
-            Some(event.instruction_id),
-            "pump_fun".to_string(),
-            event.program_id.clone(),
-            event_kind.to_string(),
-            event.bonding_curve.clone(),
-            None,
-            event.mint.clone(),
-            Some(crate::WSOL_MINT_ID.to_string()),
-            event.associated_bonding_curve.clone(),
-            payload_json,
-        );
-        let upsert_result =
-            crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-        if let Err(error) = upsert_result {
-            return Err(error);
-        }
-        let fetched_result = crate::query_dex_decoded_events_get_by_key(
-            self.database.as_ref(),
-            event.transaction_id,
-            Some(event.instruction_id),
-            event_kind,
-        )
-        .await;
-        let fetched_option = match fetched_result {
-            Ok(fetched_option) => fetched_option,
-            Err(error) => return Err(error),
-        };
-        let fetched = match fetched_option {
-            Some(fetched) => fetched,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded pump.fun trade event disappeared after upsert".to_string(),
-                ));
-            },
-        };
-        if !already_present {
-            let payload_value = event.payload_json.clone();
-            let observation_result = self
-                .persistence
-                .record_observation(&crate::DetectionObservationInput::new(
-                    observation_kind.to_string(),
-                    crate::ObservationSourceKind::HttpRpc,
-                    transaction.source_endpoint_name.clone(),
-                    transaction.signature.clone(),
-                    transaction.slot,
-                    payload_value.clone(),
-                ))
-                .await;
-            let observation_id = match observation_result {
-                Ok(observation_id) => observation_id,
-                Err(error) => return Err(error),
-            };
-            let signal_result = self
-                .persistence
-                .record_signal(&crate::DetectionSignalInput::new(
-                    signal_kind.to_string(),
-                    crate::AnalysisSignalSeverity::Low,
-                    transaction.signature.clone(),
-                    Some(observation_id),
-                    None,
-                    payload_value,
-                ))
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(fetched);
+        return crate::dex_decoded_event_materialization::materialize_dex_decoded_event(input)
+            .await;
     }
 
     async fn persist_pump_swap_event(
@@ -2107,326 +714,346 @@ impl DexDecodeService {
         signal_kind: &str,
         observation_kind: &str,
     ) -> Result<crate::DexDecodedEventDto, crate::Error> {
-        let payload_value = prepare_pump_swap_trade_payload_for_classification(event);
-        let payload_json_result =
-            enrich_and_serialize_dex_decoded_payload("pump_swap", event_kind, payload_value);
-        let payload_json = match payload_json_result {
-            Ok(payload_json) => payload_json,
-            Err(error) => return Err(error),
+        let enrichment_payload_json = prepare_pump_swap_trade_payload_for_classification(event);
+        let input = crate::dex_decoded_event_materialization::DexDecodedEventMaterializationInput {
+            database: self.database.as_ref(),
+            persistence: &self.persistence,
+            transaction,
+            transaction_id: event.transaction_id,
+            instruction_id: Some(event.instruction_id),
+            protocol_name: "pump_swap".to_string(),
+            program_id: event.program_id.clone(),
+            event_kind: event_kind.to_string(),
+            pool_account: event.pool_account.clone(),
+            market_account: None,
+            token_a_mint: event.token_a_mint.clone(),
+            token_b_mint: event.token_b_mint.clone(),
+            lp_mint: event.pool_v2.clone(),
+            enrichment_payload_json,
+            observation_payload_json: event.payload_json.clone(),
+            observation_kind: observation_kind.to_string(),
+            signal_kind: signal_kind.to_string(),
+            missing_after_upsert_message: "decoded event disappeared after upsert".to_string(),
         };
-        let existing_result = crate::query_dex_decoded_events_get_by_key(
-            self.database.as_ref(),
-            event.transaction_id,
-            Some(event.instruction_id),
-            event_kind,
-        )
-        .await;
-        let existing_option = match existing_result {
-            Ok(existing_option) => existing_option,
-            Err(error) => return Err(error),
-        };
-        let already_present = existing_option.is_some();
-        let dto = crate::DexDecodedEventDto::new(
-            event.transaction_id,
-            Some(event.instruction_id),
-            "pump_swap".to_string(),
-            event.program_id.clone(),
-            event_kind.to_string(),
-            event.pool_account.clone(),
-            None,
-            event.token_a_mint.clone(),
-            event.token_b_mint.clone(),
-            event.pool_v2.clone(),
-            payload_json,
-        );
-        let upsert_result =
-            crate::query_dex_decoded_events_upsert(self.database.as_ref(), &dto).await;
-        if let Err(error) = upsert_result {
-            return Err(error);
-        }
-        let fetched_result = crate::query_dex_decoded_events_get_by_key(
-            self.database.as_ref(),
-            event.transaction_id,
-            Some(event.instruction_id),
-            event_kind,
-        )
-        .await;
-        let fetched_option = match fetched_result {
-            Ok(fetched_option) => fetched_option,
-            Err(error) => return Err(error),
-        };
-        let fetched = match fetched_option {
-            Some(fetched) => fetched,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded event disappeared after upsert".to_string(),
-                ));
-            },
-        };
-        if !already_present {
-            let payload_value = event.payload_json.clone();
-            let observation_result = self
-                .persistence
-                .record_observation(&crate::DetectionObservationInput::new(
-                    observation_kind.to_string(),
-                    crate::ObservationSourceKind::HttpRpc,
-                    transaction.source_endpoint_name.clone(),
-                    transaction.signature.clone(),
-                    transaction.slot,
-                    payload_value.clone(),
-                ))
-                .await;
-            let observation_id = match observation_result {
-                Ok(observation_id) => observation_id,
-                Err(error) => return Err(error),
+        return crate::dex_decoded_event_materialization::materialize_dex_decoded_event(input)
+            .await;
+    }
+
+    async fn decode_and_persist_raydium_cpmm_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let mut persisted = std::vec::Vec::new();
+        for instruction in instructions {
+            let program_id = match instruction.program_id.as_ref() {
+                Some(program_id) => program_id,
+                None => continue,
             };
-            let signal_result = self
-                .persistence
-                .record_signal(&crate::DetectionSignalInput::new(
-                    signal_kind.to_string(),
-                    crate::AnalysisSignalSeverity::Low,
-                    transaction.signature.clone(),
-                    Some(observation_id),
-                    None,
-                    payload_value,
-                ))
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
+            if program_id.as_str() != crate::RAYDIUM_CPMM_PROGRAM_ID {
+                continue;
+            }
+            let data_json = match instruction.data_json.as_ref() {
+                Some(data_json) => data_json,
+                None => continue,
+            };
+            let decoded_events = crate::decode_raydium_cpmm_instruction(
+                instruction.accounts_json.as_str(),
+                data_json.as_str(),
+            );
+            for decoded_event in &decoded_events {
+                let persist_result =
+                    self.persist_raydium_cpmm_event(transaction, instruction, decoded_event).await;
+                let persisted_event = match persist_result {
+                    Ok(persisted_event) => persisted_event,
+                    Err(error) => return Err(error),
+                };
+                persisted.push(persisted_event);
             }
         }
-        return Ok(fetched);
+        return Ok(persisted);
+    }
+
+    async fn decode_and_persist_raydium_clmm_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let mut persisted = std::vec::Vec::new();
+        for instruction in instructions {
+            let program_id = match instruction.program_id.as_ref() {
+                Some(program_id) => program_id,
+                None => continue,
+            };
+            if program_id.as_str() != crate::RAYDIUM_CLMM_PROGRAM_ID {
+                continue;
+            }
+            let data_json = match instruction.data_json.as_ref() {
+                Some(data_json) => data_json,
+                None => continue,
+            };
+            let decoded_events = crate::decode_raydium_clmm_instruction(
+                instruction.accounts_json.as_str(),
+                data_json.as_str(),
+            );
+            for decoded_event in &decoded_events {
+                let persist_result =
+                    self.persist_raydium_clmm_event(transaction, instruction, decoded_event).await;
+                let persisted_event = match persist_result {
+                    Ok(persisted_event) => persisted_event,
+                    Err(error) => return Err(error),
+                };
+                persisted.push(persisted_event);
+            }
+        }
+        return Ok(persisted);
+    }
+
+    async fn decode_and_persist_raydium_amm_v4_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let decoded_result =
+            self.raydium_amm_v4_decoder.decode_transaction(transaction, instructions);
+        let decoded_events = match decoded_result {
+            Ok(decoded_events) => decoded_events,
+            Err(error) => return Err(error),
+        };
+        let mut persisted = std::vec::Vec::new();
+        for decoded_event in &decoded_events {
+            let persist_result =
+                self.persist_raydium_amm_v4_event(transaction, decoded_event).await;
+            let persisted_event = match persist_result {
+                Ok(persisted_event) => persisted_event,
+                Err(error) => return Err(error),
+            };
+            persisted.push(persisted_event);
+        }
+        return Ok(persisted);
+    }
+
+    async fn decode_and_persist_pump_fun_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let decoded_result = self.pump_fun_decoder.decode_transaction(transaction, instructions);
+        let decoded_events = match decoded_result {
+            Ok(decoded_events) => decoded_events,
+            Err(error) => return Err(error),
+        };
+        let mut persisted = std::vec::Vec::new();
+        for decoded_event in &decoded_events {
+            let persist_result = self.persist_pump_fun_event(transaction, decoded_event).await;
+            let persisted_event = match persist_result {
+                Ok(persisted_event) => persisted_event,
+                Err(error) => return Err(error),
+            };
+            persisted.push(persisted_event);
+        }
+        return Ok(persisted);
+    }
+
+    async fn decode_and_persist_pump_swap_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let decoded_result = self.pump_swap_decoder.decode_transaction(transaction, instructions);
+        let decoded_events = match decoded_result {
+            Ok(decoded_events) => decoded_events,
+            Err(error) => return Err(error),
+        };
+        let mut persisted = std::vec::Vec::new();
+        for decoded_event in &decoded_events {
+            let persist_result = self.persist_pump_swap_event(transaction, decoded_event).await;
+            let persisted_event = match persist_result {
+                Ok(persisted_event) => persisted_event,
+                Err(error) => return Err(error),
+            };
+
+            persisted.push(persisted_event);
+        }
+        return Ok(persisted);
+    }
+
+    async fn decode_and_persist_meteora_dbc_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let decoded_result = self.meteora_dbc_decoder.decode_transaction(transaction, instructions);
+        let decoded_events = match decoded_result {
+            Ok(decoded_events) => decoded_events,
+            Err(error) => return Err(error),
+        };
+        let mut persisted = std::vec::Vec::new();
+        for decoded_event in &decoded_events {
+            let persist_result = self.persist_meteora_dbc_event(transaction, decoded_event).await;
+            let persisted_event = match persist_result {
+                Ok(persisted_event) => persisted_event,
+                Err(error) => return Err(error),
+            };
+            persisted.push(persisted_event);
+        }
+        return Ok(persisted);
+    }
+
+    async fn decode_and_persist_meteora_damm_v1_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let decoded_result =
+            self.meteora_damm_v1_decoder.decode_transaction(transaction, instructions);
+        let decoded_events = match decoded_result {
+            Ok(decoded_events) => decoded_events,
+            Err(error) => return Err(error),
+        };
+        let mut persisted = std::vec::Vec::new();
+        for decoded_event in &decoded_events {
+            let persist_result =
+                self.persist_meteora_damm_v1_event(transaction, decoded_event).await;
+            let persisted_event = match persist_result {
+                Ok(persisted_event) => persisted_event,
+                Err(error) => return Err(error),
+            };
+            persisted.push(persisted_event);
+        }
+        return Ok(persisted);
+    }
+
+    async fn decode_and_persist_meteora_damm_v2_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let decoded_result =
+            self.meteora_damm_v2_decoder.decode_transaction(transaction, instructions);
+        let decoded_events = match decoded_result {
+            Ok(decoded_events) => decoded_events,
+            Err(error) => return Err(error),
+        };
+        let mut persisted = std::vec::Vec::new();
+        for decoded_event in &decoded_events {
+            let persist_result =
+                self.persist_meteora_damm_v2_event(transaction, decoded_event).await;
+            let persisted_event = match persist_result {
+                Ok(persisted_event) => persisted_event,
+                Err(error) => return Err(error),
+            };
+            persisted.push(persisted_event);
+        }
+        return Ok(persisted);
+    }
+
+    async fn decode_and_persist_orca_whirlpools_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let decoded_result =
+            self.orca_whirlpools_decoder.decode_transaction(transaction, instructions);
+        let decoded_events = match decoded_result {
+            Ok(decoded_events) => decoded_events,
+            Err(error) => return Err(error),
+        };
+        let mut persisted = std::vec::Vec::new();
+        for decoded_event in &decoded_events {
+            let persist_result =
+                self.persist_orca_whirlpools_event(transaction, decoded_event).await;
+            let persisted_event = match persist_result {
+                Ok(persisted_event) => persisted_event,
+                Err(error) => return Err(error),
+            };
+            persisted.push(persisted_event);
+        }
+        return Ok(persisted);
+    }
+
+    async fn decode_and_persist_fluxbeam_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let decoded_result = self.fluxbeam_decoder.decode_transaction(transaction, instructions);
+        let decoded_events = match decoded_result {
+            Ok(decoded_events) => decoded_events,
+            Err(error) => return Err(error),
+        };
+        let mut persisted = std::vec::Vec::new();
+        for decoded_event in &decoded_events {
+            let persist_result = self.persist_fluxbeam_event(transaction, decoded_event).await;
+            let persisted_event = match persist_result {
+                Ok(persisted_event) => persisted_event,
+                Err(error) => return Err(error),
+            };
+            persisted.push(persisted_event);
+        }
+        return Ok(persisted);
+    }
+
+    async fn decode_and_persist_dexlab_events(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        instructions: &[crate::ChainInstructionDto],
+    ) -> Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error> {
+        let decoded_result = self.dexlab_decoder.decode_transaction(transaction, instructions);
+        let decoded_events = match decoded_result {
+            Ok(decoded_events) => decoded_events,
+            Err(error) => return Err(error),
+        };
+        let mut persisted = std::vec::Vec::new();
+        for decoded_event in &decoded_events {
+            let persist_result = self.persist_dexlab_event(transaction, decoded_event).await;
+            let persisted_event = match persist_result {
+                Ok(persisted_event) => persisted_event,
+                Err(error) => return Err(error),
+            };
+            persisted.push(persisted_event);
+        }
+        return Ok(persisted);
     }
 }
 
-// Classifies a DEX event kind into a stable business category.
-fn classify_dex_event_category(event_kind: &str) -> &'static str {
-    if is_dex_reward_event_kind(event_kind) {
-        return "reward";
+fn append_persisted_events(
+    target: &mut std::vec::Vec<crate::DexDecodedEventDto>,
+    source: std::vec::Vec<crate::DexDecodedEventDto>,
+) {
+    for persisted_event in source {
+        target.push(persisted_event);
     }
-    if is_dex_fee_event_kind(event_kind) {
-        return "fee";
-    }
-    if is_dex_liquidity_event_kind(event_kind) {
-        return "liquidity";
-    }
-    if is_dex_pool_lifecycle_event_kind(event_kind) {
-        return "pool_lifecycle";
-    }
-    if is_dex_admin_event_kind(event_kind) {
-        return "admin";
-    }
-    if is_dex_trade_event_kind(event_kind) {
-        return "trade";
-    }
-    return "unknown";
 }
 
-// Returns true when the event kind represents a swap-like event.
-fn is_dex_trade_event_kind(event_kind: &str) -> bool {
-    if event_kind.ends_with(".buy") {
-        return true;
-    }
-    if event_kind.ends_with(".sell") {
-        return true;
-    }
-    if event_kind.ends_with(".swap") {
-        return true;
-    }
-    if event_kind.contains(".swap_") {
-        return true;
-    }
-    return false;
-}
-
-// Returns true when the event kind can directly produce a candle candidate.
-fn is_dex_candle_candidate_event_kind(event_kind: &str) -> bool {
-    if event_kind.contains("router") {
-        return false;
-    }
-    if event_kind.contains("route") {
-        return false;
-    }
-    return is_dex_trade_event_kind(event_kind);
-}
-
-// Returns true for liquidity lifecycle changes that must not become candles.
-fn is_dex_liquidity_event_kind(event_kind: &str) -> bool {
-    if event_kind.contains(".deposit") {
-        return true;
-    }
-    if event_kind.contains(".withdraw") {
-        return true;
-    }
-    if event_kind.contains(".increase_liquidity") {
-        return true;
-    }
-    if event_kind.contains(".decrease_liquidity") {
-        return true;
-    }
-    if event_kind.contains(".open_position") {
-        return true;
-    }
-    if event_kind.contains(".close_position") {
-        return true;
-    }
-    return false;
-}
-
-// Returns true for fee collection events.
-fn is_dex_fee_event_kind(event_kind: &str) -> bool {
-    if event_kind.contains("collect_creator_fee") {
-        return true;
-    }
-    if event_kind.contains("collect_protocol_fee") {
-        return true;
-    }
-    if event_kind.contains("collect_fund_fee") {
-        return true;
-    }
-    if event_kind.contains("collect_fee") {
-        return true;
-    }
-    return false;
-}
-
-// Returns true for reward/incentive events.
-fn is_dex_reward_event_kind(event_kind: &str) -> bool {
-    if event_kind.contains("reward") {
-        return true;
-    }
-    if event_kind.contains("emission") {
-        return true;
-    }
-    return false;
-}
-
-// Returns true for pool creation / initialization / migration events.
-fn is_dex_pool_lifecycle_event_kind(event_kind: &str) -> bool {
-    if event_kind.contains(".initialize") {
-        return true;
-    }
-    if event_kind.contains(".initialize_with_permission") {
-        return true;
-    }
-    if event_kind.contains(".create_pool") {
-        return true;
-    }
-    if event_kind.contains(".create_v2_token") {
-        return true;
-    }
-    if event_kind.contains(".migrate") {
-        return true;
-    }
-    return false;
-}
-
-// Returns true for admin/config/permission changes.
-fn is_dex_admin_event_kind(event_kind: &str) -> bool {
-    if event_kind.contains("admin") {
-        return true;
-    }
-    if event_kind.contains("config") {
-        return true;
-    }
-    if event_kind.contains("permission") {
-        return true;
-    }
-    if event_kind.contains("set_") {
-        return true;
-    }
-    if event_kind.contains("update_") {
-        return true;
-    }
-    return false;
-}
-
-// Enriches a decoded payload with non-destructive classification metadata.
-fn enrich_dex_decoded_payload(
-    protocol_name: &str,
-    event_kind: &str,
-    payload_json: serde_json::Value,
-) -> serde_json::Value {
-    let event_category = classify_dex_event_category(event_kind);
-    let trade_candidate = is_dex_trade_event_kind(event_kind);
-    let candle_candidate = is_dex_candle_candidate_event_kind(event_kind);
-    let mut object = match payload_json {
-        serde_json::Value::Object(object) => object,
-        other => {
-            let mut object = serde_json::Map::new();
-            object.insert("rawPayload".to_owned(), other);
-            object
-        },
+fn append_persisted_events_result(
+    target: &mut std::vec::Vec<crate::DexDecodedEventDto>,
+    source_result: Result<std::vec::Vec<crate::DexDecodedEventDto>, crate::Error>,
+) -> Result<(), crate::Error> {
+    let source = match source_result {
+        Ok(source) => source,
+        Err(error) => return Err(error),
     };
-    json_insert_string_if_missing(&mut object, "protocolName", protocol_name);
-    json_insert_string_if_missing(&mut object, "eventKind", event_kind);
-    json_insert_string_if_missing(&mut object, "eventCategory", event_category);
-    json_insert_bool_if_missing(&mut object, "tradeCandidate", trade_candidate);
-    json_insert_bool_if_missing(&mut object, "candleCandidate", candle_candidate);
-    json_insert_i64_if_missing(&mut object, "eventClassificationVersion", 1);
-    if !trade_candidate {
-        json_insert_string_if_missing(&mut object, "skipTradeReason", "non_trade_event");
-    } else if !candle_candidate {
-        json_insert_string_if_missing(
-            &mut object,
-            "skipCandleReason",
-            "route_or_multihop_event_requires_leg_resolution",
-        );
-    }
-    return serde_json::Value::Object(object);
+    append_persisted_events(target, source);
+    return Ok(());
 }
 
-// Inserts a string JSON property without overriding existing decoded data.
-fn json_insert_string_if_missing(
-    object: &mut serde_json::Map<String, serde_json::Value>,
-    key: &str,
-    value: &str,
-) {
-    if object.contains_key(key) {
-        return;
-    }
-    object.insert(key.to_owned(), serde_json::Value::String(value.to_owned()));
-}
-
-// Inserts a bool JSON property without overriding existing decoded data.
-fn json_insert_bool_if_missing(
-    object: &mut serde_json::Map<String, serde_json::Value>,
-    key: &str,
-    value: bool,
-) {
-    if object.contains_key(key) {
-        return;
-    }
-    object.insert(key.to_owned(), serde_json::Value::Bool(value));
-}
-
-// Inserts an i64 JSON property without overriding existing decoded data.
-fn json_insert_i64_if_missing(
-    object: &mut serde_json::Map<String, serde_json::Value>,
-    key: &str,
-    value: i64,
-) {
-    if object.contains_key(key) {
-        return;
-    }
-    object.insert(key.to_owned(), serde_json::Value::Number(serde_json::Number::from(value)));
-}
-fn enrich_and_serialize_dex_decoded_payload(
+fn enriched_raydium_payload_value(
     protocol_name: &str,
     event_kind: &str,
-    payload_json: serde_json::Value,
-) -> Result<String, crate::Error> {
-    let enriched_payload = enrich_dex_decoded_payload(protocol_name, event_kind, payload_json);
-    let payload_json_result = serde_json::to_string(&enriched_payload);
-    match payload_json_result {
-        Ok(payload_json) => return Ok(payload_json),
+    raw_payload_json: &str,
+) -> Result<serde_json::Value, crate::Error> {
+    let payload_value_result = serde_json::from_str::<serde_json::Value>(raw_payload_json);
+    let payload_value = match payload_value_result {
+        Ok(payload_value) => payload_value,
         Err(error) => {
             return Err(crate::Error::Json(format!(
-                "cannot serialize enriched decoded payload for '{}': {}",
-                event_kind, error
+                "cannot parse decoded {} payload for '{}': {}",
+                protocol_name, event_kind, error
             )));
         },
-    }
+    };
+    return Ok(crate::enrich_dex_decoded_payload(protocol_name, event_kind, payload_value));
 }
 
 // Marks incomplete PumpSwap decoded trades as non-materializable candidates before generic
@@ -2459,24 +1086,6 @@ fn prepare_pump_swap_trade_payload_for_classification(
     return serde_json::Value::Object(object);
 }
 
-fn enrich_serialized_dex_decoded_payload(
-    protocol_name: &str,
-    event_kind: &str,
-    payload_json: &str,
-) -> Result<String, crate::Error> {
-    let payload_value_result = serde_json::from_str::<serde_json::Value>(payload_json);
-    let payload_value = match payload_value_result {
-        Ok(payload_value) => payload_value,
-        Err(error) => {
-            return Err(crate::Error::Json(format!(
-                "cannot parse decoded payload for '{}': {}",
-                event_kind, error
-            )));
-        },
-    };
-    return enrich_and_serialize_dex_decoded_payload(protocol_name, event_kind, payload_value);
-}
-
 #[cfg(test)]
 mod tests {
 
@@ -3185,32 +1794,53 @@ mod tests {
 
     #[test]
     fn classifies_swap_events_as_trade_candidates() {
-        assert_eq!(super::classify_dex_event_category("raydium_cpmm.swap_base_input"), "trade");
-        assert_eq!(super::classify_dex_event_category("raydium_cpmm.swap_base_output"), "trade");
-        assert_eq!(super::classify_dex_event_category("raydium_clmm.swap"), "trade");
-        assert_eq!(super::classify_dex_event_category("raydium_clmm.swap_v2"), "trade");
-        assert_eq!(super::classify_dex_event_category("pump_fun.buy"), "trade");
-        assert!(super::is_dex_trade_event_kind("raydium_cpmm.swap_base_input"));
-        assert!(super::is_dex_candle_candidate_event_kind("raydium_cpmm.swap_base_input"));
+        assert_eq!(
+            crate::classify_dex_event_category_code("raydium_cpmm.swap_base_input"),
+            "trade"
+        );
+        assert_eq!(
+            crate::classify_dex_event_category_code("raydium_cpmm.swap_base_output"),
+            "trade"
+        );
+        assert_eq!(crate::classify_dex_event_category_code("raydium_clmm.swap"), "trade");
+        assert_eq!(crate::classify_dex_event_category_code("raydium_clmm.swap_v2"), "trade");
+        assert_eq!(crate::classify_dex_event_category_code("pump_fun.buy"), "trade");
+        assert!(crate::is_dex_trade_event_kind("raydium_cpmm.swap_base_input"));
+        assert!(crate::is_dex_candle_candidate_event_kind("raydium_cpmm.swap_base_input"));
     }
 
     #[test]
     fn classifies_router_swap_as_trade_but_not_direct_candle_candidate() {
-        assert_eq!(super::classify_dex_event_category("raydium_clmm.swap_router_base_in"), "trade");
-        assert!(super::is_dex_trade_event_kind("raydium_clmm.swap_router_base_in"));
-        assert!(!super::is_dex_candle_candidate_event_kind("raydium_clmm.swap_router_base_in"));
+        assert_eq!(
+            crate::classify_dex_event_category_code("raydium_clmm.swap_router_base_in"),
+            "trade"
+        );
+        assert!(crate::is_dex_trade_event_kind("raydium_clmm.swap_router_base_in"));
+        assert!(!crate::is_dex_candle_candidate_event_kind("raydium_clmm.swap_router_base_in"));
     }
 
     #[test]
     fn classifies_fee_reward_liquidity_and_lifecycle_events() {
-        assert_eq!(super::classify_dex_event_category("raydium_cpmm.collect_creator_fee"), "fee");
-        assert_eq!(super::classify_dex_event_category("raydium_clmm.collect_protocol_fee"), "fee");
-        assert_eq!(super::classify_dex_event_category("raydium_clmm.set_reward_params"), "reward");
         assert_eq!(
-            super::classify_dex_event_category("raydium_clmm.increase_liquidity_v2"),
+            crate::classify_dex_event_category_code("raydium_cpmm.collect_creator_fee"),
+            "fee"
+        );
+        assert_eq!(
+            crate::classify_dex_event_category_code("raydium_clmm.collect_protocol_fee"),
+            "fee"
+        );
+        assert_eq!(
+            crate::classify_dex_event_category_code("raydium_clmm.set_reward_params"),
+            "reward"
+        );
+        assert_eq!(
+            crate::classify_dex_event_category_code("raydium_clmm.increase_liquidity_v2"),
             "liquidity"
         );
-        assert_eq!(super::classify_dex_event_category("raydium_cpmm.initialize"), "pool_lifecycle");
+        assert_eq!(
+            crate::classify_dex_event_category_code("raydium_cpmm.initialize"),
+            "pool_lifecycle"
+        );
     }
 
     #[test]
@@ -3219,7 +1849,7 @@ mod tests {
             "eventCategory": "custom",
             "amountIn": "10"
         });
-        let enriched_payload = super::enrich_dex_decoded_payload(
+        let enriched_payload = crate::enrich_dex_decoded_payload(
             "raydium_cpmm",
             "raydium_cpmm.swap_base_input",
             payload_json,
@@ -3250,7 +1880,7 @@ mod tests {
     #[test]
     fn enriches_non_object_payload_as_raw_payload() {
         let payload_json = serde_json::Value::String("raw".to_owned());
-        let enriched_payload = super::enrich_dex_decoded_payload(
+        let enriched_payload = crate::enrich_dex_decoded_payload(
             "raydium_clmm",
             "raydium_clmm.collect_protocol_fee",
             payload_json,
diff --git a/kb_lib/src/dex_decode_context.rs b/kb_lib/src/dex_decode_context.rs
new file mode 100644
index 0000000..b6d2cdb
--- /dev/null
+++ b/kb_lib/src/dex_decode_context.rs
@@ -0,0 +1,55 @@
+// file: kb_lib/src/dex_decode_context.rs
+
+//! Transaction context loading for DEX decoding.
+//!
+//! This module loads the persisted transaction and projected instructions
+//! required by `DexDecodeService`.
+
+/// Transaction context required by DEX decoding.
+pub(crate) struct DexDecodeTransactionContext {
+    /// Persisted chain transaction.
+    pub(crate) transaction: crate::ChainTransactionDto,
+    /// Projected transaction instructions.
+    pub(crate) instructions: std::vec::Vec<crate::ChainInstructionDto>,
+}
+
+/// Loads the transaction and its projected instructions for DEX decoding.
+pub(crate) async fn load_dex_decode_transaction_context(
+    database: &crate::Database,
+    signature: &str,
+) -> Result<crate::dex_decode_context::DexDecodeTransactionContext, crate::Error> {
+    let transaction_result =
+        crate::query_chain_transactions_get_by_signature(database, signature).await;
+    let transaction_option = match transaction_result {
+        Ok(transaction_option) => transaction_option,
+        Err(error) => return Err(error),
+    };
+    let transaction = match transaction_option {
+        Some(transaction) => transaction,
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "cannot decode unknown chain transaction '{}'",
+                signature
+            )));
+        },
+    };
+    let transaction_id = match transaction.id {
+        Some(transaction_id) => transaction_id,
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "chain transaction '{}' has no internal id",
+                signature
+            )));
+        },
+    };
+    let instructions_result =
+        crate::query_chain_instructions_list_by_transaction_id(database, transaction_id).await;
+    let instructions = match instructions_result {
+        Ok(instructions) => instructions,
+        Err(error) => return Err(error),
+    };
+    return Ok(crate::dex_decode_context::DexDecodeTransactionContext {
+        transaction,
+        instructions,
+    });
+}
diff --git a/kb_lib/src/dex_decoded_event_materialization.rs b/kb_lib/src/dex_decoded_event_materialization.rs
new file mode 100644
index 0000000..6401a69
--- /dev/null
+++ b/kb_lib/src/dex_decoded_event_materialization.rs
@@ -0,0 +1,140 @@
+// file: kb_lib/src/dex_decoded_event_materialization.rs
+
+//! Decoded DEX event materialization helpers.
+//!
+//! This module centralizes persistence of decoded DEX events:
+//! payload enrichment, upsert, fetch-after-upsert, observation recording
+//! and signal recording.
+
+/// Input required to persist one decoded DEX event.
+pub(crate) struct DexDecodedEventMaterializationInput<'a> {
+    /// Database connection.
+    pub(crate) database: &'a crate::Database,
+    /// Detection persistence service.
+    pub(crate) persistence: &'a crate::DetectionPersistenceService,
+    /// Parent transaction.
+    pub(crate) transaction: &'a crate::ChainTransactionDto,
+    /// Internal transaction id.
+    pub(crate) transaction_id: i64,
+    /// Optional internal instruction id.
+    pub(crate) instruction_id: std::option::Option<i64>,
+    /// Stable protocol name.
+    pub(crate) protocol_name: std::string::String,
+    /// Program id that produced the event.
+    pub(crate) program_id: std::string::String,
+    /// Stable decoded event kind.
+    pub(crate) event_kind: std::string::String,
+    /// Optional pool account.
+    pub(crate) pool_account: std::option::Option<std::string::String>,
+    /// Optional market account.
+    pub(crate) market_account: std::option::Option<std::string::String>,
+    /// Optional token A mint.
+    pub(crate) token_a_mint: std::option::Option<std::string::String>,
+    /// Optional token B mint.
+    pub(crate) token_b_mint: std::option::Option<std::string::String>,
+    /// Optional LP mint or protocol-specific secondary mint.
+    pub(crate) lp_mint: std::option::Option<std::string::String>,
+    /// Payload used for classification enrichment and DB storage.
+    pub(crate) enrichment_payload_json: serde_json::Value,
+    /// Payload recorded in the detection observation.
+    pub(crate) observation_payload_json: serde_json::Value,
+    /// Detection observation kind.
+    pub(crate) observation_kind: std::string::String,
+    /// Detection signal kind.
+    pub(crate) signal_kind: std::string::String,
+    /// Diagnostic message emitted when fetch-after-upsert fails.
+    pub(crate) missing_after_upsert_message: std::string::String,
+}
+
+/// Persists one decoded DEX event and records its first-seen observation/signal.
+pub(crate) async fn materialize_dex_decoded_event(
+    input: crate::dex_decoded_event_materialization::DexDecodedEventMaterializationInput<'_>,
+) -> Result<crate::DexDecodedEventDto, crate::Error> {
+    let payload_json_result = crate::enrich_and_serialize_dex_decoded_payload(
+        input.protocol_name.as_str(),
+        input.event_kind.as_str(),
+        input.enrichment_payload_json,
+    );
+    let payload_json = match payload_json_result {
+        Ok(payload_json) => payload_json,
+        Err(error) => return Err(error),
+    };
+    let existing_result = crate::query_dex_decoded_events_get_by_key(
+        input.database,
+        input.transaction_id,
+        input.instruction_id,
+        input.event_kind.as_str(),
+    )
+    .await;
+    let existing_option = match existing_result {
+        Ok(existing_option) => existing_option,
+        Err(error) => return Err(error),
+    };
+    let already_present = existing_option.is_some();
+    let dto = crate::DexDecodedEventDto::new(
+        input.transaction_id,
+        input.instruction_id,
+        input.protocol_name,
+        input.program_id,
+        input.event_kind.clone(),
+        input.pool_account,
+        input.market_account,
+        input.token_a_mint,
+        input.token_b_mint,
+        input.lp_mint,
+        payload_json,
+    );
+    let upsert_result = crate::query_dex_decoded_events_upsert(input.database, &dto).await;
+    if let Err(error) = upsert_result {
+        return Err(error);
+    }
+    let fetched_result = crate::query_dex_decoded_events_get_by_key(
+        input.database,
+        input.transaction_id,
+        input.instruction_id,
+        input.event_kind.as_str(),
+    )
+    .await;
+    let fetched_option = match fetched_result {
+        Ok(fetched_option) => fetched_option,
+        Err(error) => return Err(error),
+    };
+    let fetched = match fetched_option {
+        Some(fetched) => fetched,
+        None => {
+            return Err(crate::Error::InvalidState(input.missing_after_upsert_message));
+        },
+    };
+    if !already_present {
+        let observation_result = input
+            .persistence
+            .record_observation(&crate::DetectionObservationInput::new(
+                input.observation_kind,
+                crate::ObservationSourceKind::HttpRpc,
+                input.transaction.source_endpoint_name.clone(),
+                input.transaction.signature.clone(),
+                input.transaction.slot,
+                input.observation_payload_json.clone(),
+            ))
+            .await;
+        let observation_id = match observation_result {
+            Ok(observation_id) => observation_id,
+            Err(error) => return Err(error),
+        };
+        let signal_result = input
+            .persistence
+            .record_signal(&crate::DetectionSignalInput::new(
+                input.signal_kind,
+                crate::AnalysisSignalSeverity::Low,
+                input.transaction.signature.clone(),
+                Some(observation_id),
+                None,
+                input.observation_payload_json,
+            ))
+            .await;
+        if let Err(error) = signal_result {
+            return Err(error);
+        }
+    }
+    return Ok(fetched);
+}
diff --git a/kb_lib/src/dex_detect.rs b/kb_lib/src/dex_detect.rs
index dc11355..ceef9db 100644
--- a/kb_lib/src/dex_detect.rs
+++ b/kb_lib/src/dex_detect.rs
@@ -79,231 +79,63 @@ impl DexDetectService {
         };
         let mut detection_results = std::vec::Vec::new();
         for decoded_event in &decoded_events {
-            if decoded_event.protocol_name == "raydium_amm_v4"
-                && decoded_event.event_kind == "raydium_amm_v4.initialize2_pool"
-            {
-                let detect_result =
-                    self.detect_raydium_initialize2_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "raydium_cpmm"
-                && (decoded_event.event_kind == "raydium_cpmm.swap_base_input"
-                    || decoded_event.event_kind == "raydium_cpmm.swap_base_output")
-            {
-                let detect_result =
-                    self.detect_raydium_cpmm_trade(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "raydium_clmm"
-                && decoded_event.event_kind == "raydium_clmm.swap_v2"
-            {
-                let detect_result =
-                    self.detect_raydium_clmm_trade(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "pump_fun"
-                && decoded_event.event_kind == "pump_fun.create_v2_token"
-            {
-                let detect_result =
-                    self.detect_pump_fun_create_v2_token(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "pump_fun"
-                && decoded_event.event_kind == "pump_fun.buy"
-            {
-                let detect_result = self.detect_pump_fun_trade(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "pump_fun"
-                && decoded_event.event_kind == "pump_fun.sell"
-            {
-                let detect_result = self.detect_pump_fun_trade(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "pump_swap"
-                && (decoded_event.event_kind == "pump_swap.buy"
-                    || decoded_event.event_kind == "pump_swap.sell")
-                && (decoded_event.pool_account.is_none()
-                    || decoded_event.token_a_mint.is_none()
-                    || decoded_event.token_b_mint.is_none())
-            {
-                tracing::trace!(
-                    decoded_event_id = ?decoded_event.id,
-                    event_kind = %decoded_event.event_kind,
-                    pool_account = ?decoded_event.pool_account,
-                    "skipping incomplete pump_swap decoded event during detection"
-                );
-                continue;
-            }
-            if decoded_event.protocol_name == "pump_swap"
-                && decoded_event.event_kind == "pump_swap.buy"
-            {
-                let detect_result = self.detect_pump_swap_trade(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "pump_swap"
-                && decoded_event.event_kind == "pump_swap.sell"
-            {
-                let detect_result = self.detect_pump_swap_trade(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "meteora_dbc"
-                && decoded_event.event_kind == "meteora_dbc.create_pool"
-            {
-                let detect_result = self.detect_meteora_dbc_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "meteora_dbc"
-                && decoded_event.event_kind == "meteora_dbc.swap"
-            {
-                let detect_result = self.detect_meteora_dbc_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "meteora_damm_v2"
-                && decoded_event.event_kind == "meteora_damm_v2.create_pool"
-            {
-                let detect_result =
-                    self.detect_meteora_damm_v2_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "meteora_damm_v2"
-                && decoded_event.event_kind == "meteora_damm_v2.swap"
-            {
-                let detect_result =
-                    self.detect_meteora_damm_v2_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "meteora_damm_v1"
-                && decoded_event.event_kind == "meteora_damm_v1.create_pool"
-            {
-                let detect_result =
-                    self.detect_meteora_damm_v1_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "meteora_damm_v1"
-                && decoded_event.event_kind == "meteora_damm_v1.swap"
-            {
-                let detect_result =
-                    self.detect_meteora_damm_v1_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "orca_whirlpools"
-                && decoded_event.event_kind == "orca_whirlpools.create_pool"
-            {
-                let detect_result =
-                    self.detect_orca_whirlpools_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "orca_whirlpools"
-                && decoded_event.event_kind == "orca_whirlpools.swap"
-            {
-                let detect_result =
-                    self.detect_orca_whirlpools_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "fluxbeam"
-                && decoded_event.event_kind == "fluxbeam.create_pool"
-            {
-                let detect_result = self.detect_fluxbeam_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "fluxbeam"
-                && decoded_event.event_kind == "fluxbeam.swap"
-            {
-                let detect_result = self.detect_fluxbeam_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "dexlab"
-                && decoded_event.event_kind == "dexlab.create_pool"
-            {
-                let detect_result = self.detect_dexlab_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
-            if decoded_event.protocol_name == "dexlab" && decoded_event.event_kind == "dexlab.swap"
-            {
-                let detect_result = self.detect_dexlab_pool(&transaction, decoded_event).await;
-                let detect_result = match detect_result {
-                    Ok(detect_result) => detect_result,
-                    Err(error) => return Err(error),
-                };
-                detection_results.push(detect_result);
-            }
+            let route_option = crate::dex_detection_route::dex_detection_route(decoded_event);
+            let route = match route_option {
+                Some(route) => route,
+                None => continue,
+            };
+            let detect_result = match route {
+                crate::dex_detection_route::DexDetectionRoute::RaydiumAmmV4Initialize2Pool => {
+                    self.detect_raydium_initialize2_pool(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::RaydiumCpmmTrade => {
+                    self.detect_raydium_cpmm_trade(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::RaydiumClmmTrade => {
+                    self.detect_raydium_clmm_trade(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::PumpFunCreateV2Token => {
+                    self.detect_pump_fun_create_v2_token(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::PumpFunTrade => {
+                    self.detect_pump_fun_trade(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::PumpSwapTrade => {
+                    self.detect_pump_swap_trade(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::SkipIncompletePumpSwapTrade => {
+                    tracing::trace!(
+                        decoded_event_id = ?decoded_event.id,
+                        event_kind = %decoded_event.event_kind,
+                        pool_account = ?decoded_event.pool_account,
+                        "skipping incomplete pump_swap decoded event during detection"
+                    );
+                    continue;
+                },
+                crate::dex_detection_route::DexDetectionRoute::MeteoraDbcPool => {
+                    self.detect_meteora_dbc_pool(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::MeteoraDammV2Pool => {
+                    self.detect_meteora_damm_v2_pool(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::MeteoraDammV1Pool => {
+                    self.detect_meteora_damm_v1_pool(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::OrcaWhirlpoolsPool => {
+                    self.detect_orca_whirlpools_pool(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::FluxbeamPool => {
+                    self.detect_fluxbeam_pool(&transaction, decoded_event).await
+                },
+                crate::dex_detection_route::DexDetectionRoute::DexlabPool => {
+                    self.detect_dexlab_pool(&transaction, decoded_event).await
+                },
+            };
+            let detect_result = match detect_result {
+                Ok(detect_result) => detect_result,
+                Err(error) => return Err(error),
+            };
+            detection_results.push(detect_result);
         }
         return Ok(detection_results);
     }
@@ -313,263 +145,51 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id_option = decoded_event.id;
-        let decoded_event_id = match decoded_event_id_option {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_raydium_dex().await;
+        let dex_id_result =
+            crate::dex_catalog::ensure_known_dex(self.database.as_ref(), "raydium").await;
         let dex_id = match dex_id_result {
             Ok(dex_id) => dex_id,
             Err(error) => return Err(error),
         };
-        let pool_address_option = decoded_event.pool_account.clone();
-        let pool_address = match pool_address_option {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_a_mint_option = decoded_event.token_a_mint.clone();
-        let token_a_mint = match token_a_mint_option {
-            Some(token_a_mint) => token_a_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_b_mint_option = decoded_event.token_b_mint.clone();
-        let token_b_mint = match token_b_mint_option {
-            Some(token_b_mint) => token_b_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let lp_mint = decoded_event.lp_mint.clone();
-        let base_is_token_a = choose_base_quote_order(token_a_mint.as_str(), token_b_mint.as_str());
-        let base_mint = if base_is_token_a { token_a_mint.clone() } else { token_b_mint.clone() };
-        let quote_mint = if base_is_token_a { token_b_mint.clone() } else { token_a_mint.clone() };
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
-            Err(error) => return Err(error),
-        };
-        let lp_token_id = match lp_mint.clone() {
-            Some(lp_mint) => {
-                let lp_token_id_result = self.ensure_token(lp_mint.as_str()).await;
-                match lp_token_id_result {
-                    Ok(lp_token_id) => Some(lp_token_id),
-                    Err(error) => return Err(error),
-                }
-            },
-            None => None,
-        };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
-            Err(error) => return Err(error),
-        };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => {
-                let pool_id_option = pool.id;
-                match pool_id_option {
-                    Some(pool_id) => pool_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pool '{}' has no internal id",
-                            pool.address
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::Amm,
-                    crate::PoolStatus::Active,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-        let pair_id = match existing_pair_option {
-            Some(pair) => {
-                let pair_id_option = pair.id;
-                match pair_id_option {
-                    Some(pair_id) => pair_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pair for pool '{}' has no internal id",
-                            pool_id
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pair_dto = crate::PairDto::new(
-                    dex_id,
-                    pool_id,
-                    base_token_id,
-                    quote_token_id,
-                    pair_symbol,
-                );
-                let upsert_result =
-                    crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-                match upsert_result {
-                    Ok(pair_id) => pair_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
+        let input_result =
+            crate::dex_pool_materialization::DexPoolMaterializationInput::from_decoded_event(
+                decoded_event,
+                dex_id,
+                crate::PoolKind::Amm,
+                crate::PoolStatus::Active,
+                crate::dex_pool_materialization::DexPoolTokenOrder::ChooseBaseQuoteFromTokenAB,
                 None,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
-            return Err(error);
-        }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
                 None,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        if let Some(lp_token_id) = lp_token_id {
-            let upsert_lp_pool_token_result = crate::query_pool_tokens_upsert(
-                self.database.as_ref(),
-                &crate::PoolTokenDto::new(
-                    pool_id,
-                    lp_token_id,
-                    crate::PoolTokenRole::LpMint,
-                    None,
-                    None,
-                ),
-            )
-            .await;
-            if let Err(error) = upsert_lp_pool_token_result {
-                return Err(error);
-            }
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
+                transaction.source_endpoint_name.clone(),
+            );
+        let input = match input_result {
+            Ok(input) => input,
             Err(error) => return Err(error),
         };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
+        let detection_result =
+            crate::dex_pool_materialization::materialize_dex_pool(self.database.as_ref(), &input)
+                .await;
+        let detection_result = match detection_result {
+            Ok(detection_result) => detection_result,
+            Err(error) => return Err(error),
         };
         let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
         let payload_value = match payload_value_result {
             Ok(payload_value) => payload_value,
             Err(error) => return Err(error),
         };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
+        let signal_result = self
+            .record_pool_detection_signals(
+                transaction,
+                "signal.dex",
+                &detection_result,
+                payload_value,
+            )
+            .await;
+        if let Err(error) = signal_result {
+            return Err(error);
         }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return Ok(detection_result);
     }
 
     async fn detect_pump_fun_create_v2_token(
@@ -577,228 +197,60 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id_option = decoded_event.id;
-        let decoded_event_id = match decoded_event_id_option {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_pump_fun_dex().await;
+        let dex_id_result =
+            crate::dex_catalog::ensure_known_dex(self.database.as_ref(), "pump_fun").await;
         let dex_id = match dex_id_result {
             Ok(dex_id) => dex_id,
             Err(error) => return Err(error),
         };
-        let pool_address_option = decoded_event.pool_account.clone();
-        let pool_address = match pool_address_option {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_mint_option = decoded_event.token_a_mint.clone();
-        let token_mint = match token_mint_option {
-            Some(token_mint) => token_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let quote_mint = crate::WSOL_MINT_ID.to_string();
-        let base_is_token_a = choose_base_quote_order(token_mint.as_str(), quote_mint.as_str());
-        let base_mint = if base_is_token_a { token_mint.clone() } else { quote_mint.clone() };
-        let quote_mint_ordered =
-            if base_is_token_a { quote_mint.clone() } else { token_mint.clone() };
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
+        let token_mint_result =
+            crate::dex_pool_materialization::required_token_a_mint(decoded_event);
+        let token_mint = match token_mint_result {
+            Ok(token_mint) => token_mint,
             Err(error) => return Err(error),
         };
-        let quote_token_id_result = self.ensure_token(quote_mint_ordered.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
-            Err(error) => return Err(error),
-        };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
-            Err(error) => return Err(error),
-        };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => {
-                let pool_id_option = pool.id;
-                match pool_id_option {
-                    Some(pool_id) => pool_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pool '{}' has no internal id",
-                            pool.address
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::BondingCurve,
-                    crate::PoolStatus::Pending,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint_ordered.as_str());
-        let pair_id = match existing_pair_option {
-            Some(pair) => {
-                let pair_id_option = pair.id;
-                match pair_id_option {
-                    Some(pair_id) => pair_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pair for pool '{}' has no internal id",
-                            pool_id
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pair_dto = crate::PairDto::new(
-                    dex_id,
-                    pool_id,
-                    base_token_id,
-                    quote_token_id,
-                    pair_symbol,
-                );
-                let upsert_result =
-                    crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-                match upsert_result {
-                    Ok(pair_id) => pair_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
+        let input_result =
+            crate::dex_pool_materialization::DexPoolMaterializationInput::from_decoded_event_with_mints(
+                decoded_event,
+                dex_id,
+                token_mint,
+                crate::WSOL_MINT_ID.to_string(),
+                decoded_event.lp_mint.clone(),
+                crate::PoolKind::BondingCurve,
+                crate::PoolStatus::Pending,
+                crate::dex_pool_materialization::DexPoolTokenOrder::ChooseBaseQuoteFromTokenAB,
                 None,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
-            return Err(error);
-        }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
                 None,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
+                transaction.source_endpoint_name.clone(),
+            );
+        let input = match input_result {
+            Ok(input) => input,
             Err(error) => return Err(error),
         };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
+        let detection_result =
+            crate::dex_pool_materialization::materialize_dex_pool(self.database.as_ref(), &input)
+                .await;
+        let detection_result = match detection_result {
+            Ok(detection_result) => detection_result,
+            Err(error) => return Err(error),
         };
         let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
         let payload_value = match payload_value_result {
             Ok(payload_value) => payload_value,
             Err(error) => return Err(error),
         };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.pump_fun.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
+        let signal_result = self
+            .record_pool_detection_signals(
+                transaction,
+                "signal.dex.pump_fun",
+                &detection_result,
+                payload_value,
+            )
+            .await;
+        if let Err(error) = signal_result {
+            return Err(error);
         }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.pump_fun.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.pump_fun.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return Ok(detection_result);
     }
 
     async fn detect_pump_fun_trade(
@@ -806,58 +258,12 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id_option = decoded_event.id;
-        let decoded_event_id = match decoded_event_id_option {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_pump_fun_dex().await;
+        let dex_id_result =
+            crate::dex_catalog::ensure_known_dex(self.database.as_ref(), "pump_fun").await;
         let dex_id = match dex_id_result {
             Ok(dex_id) => dex_id,
             Err(error) => return Err(error),
         };
-        let pool_address_option = decoded_event.pool_account.clone();
-        let pool_address = match pool_address_option {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_a_mint_option = decoded_event.token_a_mint.clone();
-        let token_a_mint = match token_a_mint_option {
-            Some(token_a_mint) => token_a_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_b_mint_option = decoded_event.token_b_mint.clone();
-        let token_b_mint = match token_b_mint_option {
-            Some(token_b_mint) => token_b_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let base_is_token_a = choose_base_quote_order(token_a_mint.as_str(), token_b_mint.as_str());
-        let base_mint = if base_is_token_a { token_a_mint.clone() } else { token_b_mint.clone() };
-        let quote_mint = if base_is_token_a { token_b_mint.clone() } else { token_a_mint.clone() };
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
         let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
         let payload_value = match payload_value_result {
             Ok(payload_value) => payload_value,
@@ -866,168 +272,40 @@ impl DexDetectService {
         let vault_addresses = extract_pump_fun_vault_addresses(&payload_value);
         let token_a_vault_address = vault_addresses.0;
         let token_b_vault_address = vault_addresses.1;
-
-        let base_vault_address = if base_is_token_a {
-            token_a_vault_address.clone()
-        } else {
-            token_b_vault_address.clone()
-        };
-        let quote_vault_address = if base_is_token_a {
-            token_b_vault_address.clone()
-        } else {
-            token_a_vault_address.clone()
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
+        let input_result =
+            crate::dex_pool_materialization::DexPoolMaterializationInput::from_decoded_event(
+                decoded_event,
+                dex_id,
+                crate::PoolKind::BondingCurve,
+                crate::PoolStatus::Active,
+                crate::dex_pool_materialization::DexPoolTokenOrder::ChooseBaseQuoteFromTokenAB,
+                token_a_vault_address,
+                token_b_vault_address,
+                transaction.source_endpoint_name.clone(),
+            );
+        let input = match input_result {
+            Ok(input) => input,
             Err(error) => return Err(error),
         };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
+        let detection_result =
+            crate::dex_pool_materialization::materialize_dex_pool(self.database.as_ref(), &input)
+                .await;
+        let detection_result = match detection_result {
+            Ok(detection_result) => detection_result,
             Err(error) => return Err(error),
         };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => {
-                let pool_id_option = pool.id;
-                match pool_id_option {
-                    Some(pool_id) => pool_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pool '{}' has no internal id",
-                            pool.address
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::BondingCurve,
-                    crate::PoolStatus::Active,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-        let pair_dto =
-            crate::PairDto::new(dex_id, pool_id, base_token_id, quote_token_id, pair_symbol);
-        let pair_id_result = crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-        let pair_id = match pair_id_result {
-            Ok(pair_id) => pair_id,
-            Err(error) => return Err(error),
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
-                base_vault_address,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
+        let signal_result = self
+            .record_pool_detection_signals(
+                transaction,
+                "signal.dex.pump_fun",
+                &detection_result,
+                payload_value,
+            )
+            .await;
+        if let Err(error) = signal_result {
             return Err(error);
         }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
-                quote_vault_address,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
-            Err(error) => return Err(error),
-        };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.pump_fun.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.pump_fun.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.pump_fun.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return Ok(detection_result);
     }
 
     async fn detect_pump_swap_trade(
@@ -1035,58 +313,12 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id_option = decoded_event.id;
-        let decoded_event_id = match decoded_event_id_option {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_pump_swap_dex().await;
+        let dex_id_result =
+            crate::dex_catalog::ensure_known_dex(self.database.as_ref(), "pump_swap").await;
         let dex_id = match dex_id_result {
             Ok(dex_id) => dex_id,
             Err(error) => return Err(error),
         };
-        let pool_address_option = decoded_event.pool_account.clone();
-        let pool_address = match pool_address_option {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_a_mint_option = decoded_event.token_a_mint.clone();
-        let token_a_mint = match token_a_mint_option {
-            Some(token_a_mint) => token_a_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_b_mint_option = decoded_event.token_b_mint.clone();
-        let token_b_mint = match token_b_mint_option {
-            Some(token_b_mint) => token_b_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let base_is_token_a = choose_base_quote_order(token_a_mint.as_str(), token_b_mint.as_str());
-        let base_mint = if base_is_token_a { token_a_mint.clone() } else { token_b_mint.clone() };
-        let quote_mint = if base_is_token_a { token_b_mint.clone() } else { token_a_mint.clone() };
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
         let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
         let payload_value = match payload_value_result {
             Ok(payload_value) => payload_value,
@@ -1095,168 +327,40 @@ impl DexDetectService {
         let vault_addresses = extract_pump_swap_vault_addresses(&payload_value);
         let token_a_vault_address = vault_addresses.0;
         let token_b_vault_address = vault_addresses.1;
-
-        let base_vault_address = if base_is_token_a {
-            token_a_vault_address.clone()
-        } else {
-            token_b_vault_address.clone()
-        };
-        let quote_vault_address = if base_is_token_a {
-            token_b_vault_address.clone()
-        } else {
-            token_a_vault_address.clone()
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
+        let input_result =
+            crate::dex_pool_materialization::DexPoolMaterializationInput::from_decoded_event(
+                decoded_event,
+                dex_id,
+                crate::PoolKind::Amm,
+                crate::PoolStatus::Active,
+                crate::dex_pool_materialization::DexPoolTokenOrder::ChooseBaseQuoteFromTokenAB,
+                token_a_vault_address,
+                token_b_vault_address,
+                transaction.source_endpoint_name.clone(),
+            );
+        let input = match input_result {
+            Ok(input) => input,
             Err(error) => return Err(error),
         };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
+        let detection_result =
+            crate::dex_pool_materialization::materialize_dex_pool(self.database.as_ref(), &input)
+                .await;
+        let detection_result = match detection_result {
+            Ok(detection_result) => detection_result,
             Err(error) => return Err(error),
         };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => {
-                let pool_id_option = pool.id;
-                match pool_id_option {
-                    Some(pool_id) => pool_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pool '{}' has no internal id",
-                            pool.address
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::Amm,
-                    crate::PoolStatus::Active,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-        let pair_dto =
-            crate::PairDto::new(dex_id, pool_id, base_token_id, quote_token_id, pair_symbol);
-        let pair_id_result = crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-        let pair_id = match pair_id_result {
-            Ok(pair_id) => pair_id,
-            Err(error) => return Err(error),
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
-                base_vault_address,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
+        let signal_result = self
+            .record_pool_detection_signals(
+                transaction,
+                "signal.dex.pump_swap",
+                &detection_result,
+                payload_value,
+            )
+            .await;
+        if let Err(error) = signal_result {
             return Err(error);
         }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
-                quote_vault_address,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
-            Err(error) => return Err(error),
-        };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.pump_swap.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.pump_swap.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.pump_swap.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return Ok(detection_result);
     }
 
     async fn detect_meteora_dbc_pool(
@@ -1264,236 +368,16 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id_option = decoded_event.id;
-        let decoded_event_id = match decoded_event_id_option {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_meteora_dbc_dex().await;
-        let dex_id = match dex_id_result {
-            Ok(dex_id) => dex_id,
-            Err(error) => return Err(error),
-        };
-        let pool_address_option = decoded_event.pool_account.clone();
-        let pool_address = match pool_address_option {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_a_mint_option = decoded_event.token_a_mint.clone();
-        let token_a_mint = match token_a_mint_option {
-            Some(token_a_mint) => token_a_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_b_mint_option = decoded_event.token_b_mint.clone();
-        let token_b_mint = match token_b_mint_option {
-            Some(token_b_mint) => token_b_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let base_is_token_a = choose_base_quote_order(token_a_mint.as_str(), token_b_mint.as_str());
-        let base_mint = if base_is_token_a { token_a_mint.clone() } else { token_b_mint.clone() };
-        let quote_mint = if base_is_token_a { token_b_mint.clone() } else { token_a_mint.clone() };
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
-            Err(error) => return Err(error),
-        };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
-            Err(error) => return Err(error),
-        };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => {
-                let pool_id_option = pool.id;
-                match pool_id_option {
-                    Some(pool_id) => pool_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pool '{}' has no internal id",
-                            pool.address
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::BondingCurve,
-                    crate::PoolStatus::Pending,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-        let pair_id = match existing_pair_option {
-            Some(pair) => {
-                let pair_id_option = pair.id;
-                match pair_id_option {
-                    Some(pair_id) => pair_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pair for pool '{}' has no internal id",
-                            pool_id
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pair_dto = crate::PairDto::new(
-                    dex_id,
-                    pool_id,
-                    base_token_id,
-                    quote_token_id,
-                    pair_symbol,
-                );
-                let upsert_result =
-                    crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-                match upsert_result {
-                    Ok(pair_id) => pair_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
-                None,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
-            return Err(error);
-        }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
-                None,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
-            Err(error) => return Err(error),
-        };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
-        let payload_value = match payload_value_result {
-            Ok(payload_value) => payload_value,
-            Err(error) => return Err(error),
-        };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.meteora_dbc.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.meteora_dbc.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.meteora_dbc.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return self
+            .detect_materialized_pool_from_decoded_event(
+                transaction,
+                decoded_event,
+                "meteora_dbc",
+                crate::PoolKind::BondingCurve,
+                crate::PoolStatus::Pending,
+                "signal.dex.meteora_dbc",
+            )
+            .await;
     }
 
     async fn detect_meteora_damm_v2_pool(
@@ -1501,236 +385,16 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id_option = decoded_event.id;
-        let decoded_event_id = match decoded_event_id_option {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_meteora_damm_v2_dex().await;
-        let dex_id = match dex_id_result {
-            Ok(dex_id) => dex_id,
-            Err(error) => return Err(error),
-        };
-        let pool_address_option = decoded_event.pool_account.clone();
-        let pool_address = match pool_address_option {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_a_mint_option = decoded_event.token_a_mint.clone();
-        let token_a_mint = match token_a_mint_option {
-            Some(token_a_mint) => token_a_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_b_mint_option = decoded_event.token_b_mint.clone();
-        let token_b_mint = match token_b_mint_option {
-            Some(token_b_mint) => token_b_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let base_is_token_a = choose_base_quote_order(token_a_mint.as_str(), token_b_mint.as_str());
-        let base_mint = if base_is_token_a { token_a_mint.clone() } else { token_b_mint.clone() };
-        let quote_mint = if base_is_token_a { token_b_mint.clone() } else { token_a_mint.clone() };
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
-            Err(error) => return Err(error),
-        };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
-            Err(error) => return Err(error),
-        };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => {
-                let pool_id_option = pool.id;
-                match pool_id_option {
-                    Some(pool_id) => pool_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pool '{}' has no internal id",
-                            pool.address
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::Amm,
-                    crate::PoolStatus::Active,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-        let pair_id = match existing_pair_option {
-            Some(pair) => {
-                let pair_id_option = pair.id;
-                match pair_id_option {
-                    Some(pair_id) => pair_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pair for pool '{}' has no internal id",
-                            pool_id
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pair_dto = crate::PairDto::new(
-                    dex_id,
-                    pool_id,
-                    base_token_id,
-                    quote_token_id,
-                    pair_symbol,
-                );
-                let upsert_result =
-                    crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-                match upsert_result {
-                    Ok(pair_id) => pair_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
-                None,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
-            return Err(error);
-        }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
-                None,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
-            Err(error) => return Err(error),
-        };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
-        let payload_value = match payload_value_result {
-            Ok(payload_value) => payload_value,
-            Err(error) => return Err(error),
-        };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.meteora_damm_v2.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.meteora_damm_v2.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.meteora_damm_v2.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return self
+            .detect_materialized_pool_from_decoded_event(
+                transaction,
+                decoded_event,
+                "meteora_damm_v2",
+                crate::PoolKind::Amm,
+                crate::PoolStatus::Active,
+                "signal.dex.meteora_damm_v2",
+            )
+            .await;
     }
 
     async fn detect_meteora_damm_v1_pool(
@@ -1738,236 +402,16 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id_option = decoded_event.id;
-        let decoded_event_id = match decoded_event_id_option {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_meteora_damm_v1_dex().await;
-        let dex_id = match dex_id_result {
-            Ok(dex_id) => dex_id,
-            Err(error) => return Err(error),
-        };
-        let pool_address_option = decoded_event.pool_account.clone();
-        let pool_address = match pool_address_option {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_a_mint_option = decoded_event.token_a_mint.clone();
-        let token_a_mint = match token_a_mint_option {
-            Some(token_a_mint) => token_a_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_b_mint_option = decoded_event.token_b_mint.clone();
-        let token_b_mint = match token_b_mint_option {
-            Some(token_b_mint) => token_b_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let base_is_token_a = choose_base_quote_order(token_a_mint.as_str(), token_b_mint.as_str());
-        let base_mint = if base_is_token_a { token_a_mint.clone() } else { token_b_mint.clone() };
-        let quote_mint = if base_is_token_a { token_b_mint.clone() } else { token_a_mint.clone() };
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
-            Err(error) => return Err(error),
-        };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
-            Err(error) => return Err(error),
-        };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => {
-                let pool_id_option = pool.id;
-                match pool_id_option {
-                    Some(pool_id) => pool_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pool '{}' has no internal id",
-                            pool.address
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::Amm,
-                    crate::PoolStatus::Active,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-        let pair_id = match existing_pair_option {
-            Some(pair) => {
-                let pair_id_option = pair.id;
-                match pair_id_option {
-                    Some(pair_id) => pair_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pair for pool '{}' has no internal id",
-                            pool_id
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pair_dto = crate::PairDto::new(
-                    dex_id,
-                    pool_id,
-                    base_token_id,
-                    quote_token_id,
-                    pair_symbol,
-                );
-                let upsert_result =
-                    crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-                match upsert_result {
-                    Ok(pair_id) => pair_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
-                None,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
-            return Err(error);
-        }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
-                None,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
-            Err(error) => return Err(error),
-        };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
-        let payload_value = match payload_value_result {
-            Ok(payload_value) => payload_value,
-            Err(error) => return Err(error),
-        };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.meteora_damm_v1.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.meteora_damm_v1.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.meteora_damm_v1.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return self
+            .detect_materialized_pool_from_decoded_event(
+                transaction,
+                decoded_event,
+                "meteora_damm_v1",
+                crate::PoolKind::Amm,
+                crate::PoolStatus::Active,
+                "signal.dex.meteora_damm_v1",
+            )
+            .await;
     }
 
     async fn detect_orca_whirlpools_pool(
@@ -1975,236 +419,16 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id_option = decoded_event.id;
-        let decoded_event_id = match decoded_event_id_option {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_orca_whirlpools_dex().await;
-        let dex_id = match dex_id_result {
-            Ok(dex_id) => dex_id,
-            Err(error) => return Err(error),
-        };
-        let pool_address_option = decoded_event.pool_account.clone();
-        let pool_address = match pool_address_option {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_a_mint_option = decoded_event.token_a_mint.clone();
-        let token_a_mint = match token_a_mint_option {
-            Some(token_a_mint) => token_a_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_b_mint_option = decoded_event.token_b_mint.clone();
-        let token_b_mint = match token_b_mint_option {
-            Some(token_b_mint) => token_b_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let base_is_token_a = choose_base_quote_order(token_a_mint.as_str(), token_b_mint.as_str());
-        let base_mint = if base_is_token_a { token_a_mint.clone() } else { token_b_mint.clone() };
-        let quote_mint = if base_is_token_a { token_b_mint.clone() } else { token_a_mint.clone() };
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
-            Err(error) => return Err(error),
-        };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
-            Err(error) => return Err(error),
-        };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => {
-                let pool_id_option = pool.id;
-                match pool_id_option {
-                    Some(pool_id) => pool_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pool '{}' has no internal id",
-                            pool.address
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::Clmm,
-                    crate::PoolStatus::Active,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-        let pair_id = match existing_pair_option {
-            Some(pair) => {
-                let pair_id_option = pair.id;
-                match pair_id_option {
-                    Some(pair_id) => pair_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pair for pool '{}' has no internal id",
-                            pool_id
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pair_dto = crate::PairDto::new(
-                    dex_id,
-                    pool_id,
-                    base_token_id,
-                    quote_token_id,
-                    pair_symbol,
-                );
-                let upsert_result =
-                    crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-                match upsert_result {
-                    Ok(pair_id) => pair_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
-                None,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
-            return Err(error);
-        }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
-                None,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
-            Err(error) => return Err(error),
-        };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
-        let payload_value = match payload_value_result {
-            Ok(payload_value) => payload_value,
-            Err(error) => return Err(error),
-        };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.orca_whirlpools.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.orca_whirlpools.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.orca_whirlpools.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return self
+            .detect_materialized_pool_from_decoded_event(
+                transaction,
+                decoded_event,
+                "orca_whirlpools",
+                crate::PoolKind::Clmm,
+                crate::PoolStatus::Active,
+                "signal.dex.orca_whirlpools",
+            )
+            .await;
     }
 
     async fn detect_fluxbeam_pool(
@@ -2212,236 +436,16 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id_option = decoded_event.id;
-        let decoded_event_id = match decoded_event_id_option {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_fluxbeam_dex().await;
-        let dex_id = match dex_id_result {
-            Ok(dex_id) => dex_id,
-            Err(error) => return Err(error),
-        };
-        let pool_address_option = decoded_event.pool_account.clone();
-        let pool_address = match pool_address_option {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_a_mint_option = decoded_event.token_a_mint.clone();
-        let token_a_mint = match token_a_mint_option {
-            Some(token_a_mint) => token_a_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_b_mint_option = decoded_event.token_b_mint.clone();
-        let token_b_mint = match token_b_mint_option {
-            Some(token_b_mint) => token_b_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let base_is_token_a = choose_base_quote_order(token_a_mint.as_str(), token_b_mint.as_str());
-        let base_mint = if base_is_token_a { token_a_mint.clone() } else { token_b_mint.clone() };
-        let quote_mint = if base_is_token_a { token_b_mint.clone() } else { token_a_mint.clone() };
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
-            Err(error) => return Err(error),
-        };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
-            Err(error) => return Err(error),
-        };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => {
-                let pool_id_option = pool.id;
-                match pool_id_option {
-                    Some(pool_id) => pool_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pool '{}' has no internal id",
-                            pool.address
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::Amm,
-                    crate::PoolStatus::Active,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-        let pair_id = match existing_pair_option {
-            Some(pair) => {
-                let pair_id_option = pair.id;
-                match pair_id_option {
-                    Some(pair_id) => pair_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pair for pool '{}' has no internal id",
-                            pool_id
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pair_dto = crate::PairDto::new(
-                    dex_id,
-                    pool_id,
-                    base_token_id,
-                    quote_token_id,
-                    pair_symbol,
-                );
-                let upsert_result =
-                    crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-                match upsert_result {
-                    Ok(pair_id) => pair_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
-                None,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
-            return Err(error);
-        }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
-                None,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
-            Err(error) => return Err(error),
-        };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
-        let payload_value = match payload_value_result {
-            Ok(payload_value) => payload_value,
-            Err(error) => return Err(error),
-        };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.fluxbeam.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.fluxbeam.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.fluxbeam.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return self
+            .detect_materialized_pool_from_decoded_event(
+                transaction,
+                decoded_event,
+                "fluxbeam",
+                crate::PoolKind::Amm,
+                crate::PoolStatus::Active,
+                "signal.dex.fluxbeam",
+            )
+            .await;
     }
 
     async fn detect_dexlab_pool(
@@ -2449,236 +453,16 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id_option = decoded_event.id;
-        let decoded_event_id = match decoded_event_id_option {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_dexlab_dex().await;
-        let dex_id = match dex_id_result {
-            Ok(dex_id) => dex_id,
-            Err(error) => return Err(error),
-        };
-        let pool_address_option = decoded_event.pool_account.clone();
-        let pool_address = match pool_address_option {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_a_mint_option = decoded_event.token_a_mint.clone();
-        let token_a_mint = match token_a_mint_option {
-            Some(token_a_mint) => token_a_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let token_b_mint_option = decoded_event.token_b_mint.clone();
-        let token_b_mint = match token_b_mint_option {
-            Some(token_b_mint) => token_b_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let base_is_token_a = choose_base_quote_order(token_a_mint.as_str(), token_b_mint.as_str());
-        let base_mint = if base_is_token_a { token_a_mint.clone() } else { token_b_mint.clone() };
-        let quote_mint = if base_is_token_a { token_b_mint.clone() } else { token_a_mint.clone() };
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
-            Err(error) => return Err(error),
-        };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
-            Err(error) => return Err(error),
-        };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => {
-                let pool_id_option = pool.id;
-                match pool_id_option {
-                    Some(pool_id) => pool_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pool '{}' has no internal id",
-                            pool.address
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::Amm,
-                    crate::PoolStatus::Active,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-        let pair_id = match existing_pair_option {
-            Some(pair) => {
-                let pair_id_option = pair.id;
-                match pair_id_option {
-                    Some(pair_id) => pair_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(format!(
-                            "pair for pool '{}' has no internal id",
-                            pool_id
-                        )));
-                    },
-                }
-            },
-            None => {
-                let pair_dto = crate::PairDto::new(
-                    dex_id,
-                    pool_id,
-                    base_token_id,
-                    quote_token_id,
-                    pair_symbol,
-                );
-                let upsert_result =
-                    crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-                match upsert_result {
-                    Ok(pair_id) => pair_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
-                None,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
-            return Err(error);
-        }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
-                None,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
-            Err(error) => return Err(error),
-        };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
-        let payload_value = match payload_value_result {
-            Ok(payload_value) => payload_value,
-            Err(error) => return Err(error),
-        };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.dexlab.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.dexlab.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.dexlab.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return self
+            .detect_materialized_pool_from_decoded_event(
+                transaction,
+                decoded_event,
+                "dexlab",
+                crate::PoolKind::Amm,
+                crate::PoolStatus::Active,
+                "signal.dex.dexlab",
+            )
+            .await;
     }
 
     async fn detect_raydium_clmm_trade(
@@ -2686,46 +470,12 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id = match decoded_event.id {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_raydium_clmm_dex().await;
+        let dex_id_result =
+            crate::dex_catalog::ensure_known_dex(self.database.as_ref(), "raydium_clmm").await;
         let dex_id = match dex_id_result {
             Ok(dex_id) => dex_id,
             Err(error) => return Err(error),
         };
-        let pool_address = match decoded_event.pool_account.clone() {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let base_mint = match decoded_event.token_a_mint.clone() {
-            Some(base_mint) => base_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let quote_mint = match decoded_event.token_b_mint.clone() {
-            Some(quote_mint) => quote_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
         let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
         let payload_value = match payload_value_result {
             Ok(payload_value) => payload_value,
@@ -2733,161 +483,40 @@ impl DexDetectService {
         };
         let base_vault_address = extract_payload_string_field(&payload_value, "base_vault");
         let quote_vault_address = extract_payload_string_field(&payload_value, "quote_vault");
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
-            Err(error) => return Err(error),
-        };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
-            Err(error) => return Err(error),
-        };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => match pool.id {
-                Some(pool_id) => pool_id,
-                None => {
-                    return Err(crate::Error::InvalidState(format!(
-                        "pool '{}' has no internal id",
-                        pool.address
-                    )));
-                },
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::Clmm,
-                    crate::PoolStatus::Active,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-
-        let pair_dto =
-            crate::PairDto::new(dex_id, pool_id, base_token_id, quote_token_id, pair_symbol);
-        let pair_id_result = crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-        let pair_id = match pair_id_result {
-            Ok(pair_id) => pair_id,
-            Err(error) => return Err(error),
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
+        let input_result =
+            crate::dex_pool_materialization::DexPoolMaterializationInput::from_decoded_event(
+                decoded_event,
+                dex_id,
+                crate::PoolKind::Clmm,
+                crate::PoolStatus::Active,
+                crate::dex_pool_materialization::DexPoolTokenOrder::AlreadyBaseQuote,
                 base_vault_address,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
-            return Err(error);
-        }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
                 quote_vault_address,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
-            return Err(error);
-        }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
+                transaction.source_endpoint_name.clone(),
+            );
+        let input = match input_result {
+            Ok(input) => input,
             Err(error) => return Err(error),
         };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
+        let detection_result =
+            crate::dex_pool_materialization::materialize_dex_pool(self.database.as_ref(), &input)
+                .await;
+        let detection_result = match detection_result {
+            Ok(detection_result) => detection_result,
+            Err(error) => return Err(error),
         };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.raydium_clmm.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
+        let signal_result = self
+            .record_pool_detection_signals(
+                transaction,
+                "signal.dex.raydium_clmm",
+                &detection_result,
+                payload_value,
+            )
+            .await;
+        if let Err(error) = signal_result {
+            return Err(error);
         }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.raydium_clmm.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.raydium_clmm.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return Ok(detection_result);
     }
 
     async fn detect_raydium_cpmm_trade(
@@ -2895,46 +524,12 @@ impl DexDetectService {
         transaction: &crate::ChainTransactionDto,
         decoded_event: &crate::DexDecodedEventDto,
     ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
-        let decoded_event_id = match decoded_event.id {
-            Some(decoded_event_id) => decoded_event_id,
-            None => {
-                return Err(crate::Error::InvalidState(
-                    "decoded dex event has no internal id".to_string(),
-                ));
-            },
-        };
-        let dex_id_result = self.ensure_raydium_cpmm_dex().await;
+        let dex_id_result =
+            crate::dex_catalog::ensure_known_dex(self.database.as_ref(), "raydium_cpmm").await;
         let dex_id = match dex_id_result {
             Ok(dex_id) => dex_id,
             Err(error) => return Err(error),
         };
-        let pool_address = match decoded_event.pool_account.clone() {
-            Some(pool_address) => pool_address,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no pool_account",
-                    decoded_event_id
-                )));
-            },
-        };
-        let base_mint = match decoded_event.token_a_mint.clone() {
-            Some(base_mint) => base_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_a_mint",
-                    decoded_event_id
-                )));
-            },
-        };
-        let quote_mint = match decoded_event.token_b_mint.clone() {
-            Some(quote_mint) => quote_mint,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "decoded event '{}' has no token_b_mint",
-                    decoded_event_id
-                )));
-            },
-        };
         let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
         let payload_value = match payload_value_result {
             Ok(payload_value) => payload_value,
@@ -2942,522 +537,96 @@ impl DexDetectService {
         };
         let base_vault_address = extract_payload_string_field(&payload_value, "base_vault");
         let quote_vault_address = extract_payload_string_field(&payload_value, "quote_vault");
-        let base_token_id_result = self.ensure_token(base_mint.as_str()).await;
-        let base_token_id = match base_token_id_result {
-            Ok(base_token_id) => base_token_id,
-            Err(error) => return Err(error),
-        };
-        let quote_token_id_result = self.ensure_token(quote_mint.as_str()).await;
-        let quote_token_id = match quote_token_id_result {
-            Ok(quote_token_id) => quote_token_id,
-            Err(error) => return Err(error),
-        };
-        let existing_pool_result =
-            crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str()).await;
-        let existing_pool_option = match existing_pool_result {
-            Ok(existing_pool_option) => existing_pool_option,
-            Err(error) => return Err(error),
-        };
-        let created_pool = existing_pool_option.is_none();
-        let pool_id = match existing_pool_option {
-            Some(pool) => match pool.id {
-                Some(pool_id) => pool_id,
-                None => {
-                    return Err(crate::Error::InvalidState(format!(
-                        "pool '{}' has no internal id",
-                        pool.address
-                    )));
-                },
-            },
-            None => {
-                let pool_dto = crate::PoolDto::new(
-                    dex_id,
-                    pool_address.clone(),
-                    crate::PoolKind::Amm,
-                    crate::PoolStatus::Active,
-                );
-                let upsert_result =
-                    crate::query_pools_upsert(self.database.as_ref(), &pool_dto).await;
-                match upsert_result {
-                    Ok(pool_id) => pool_id,
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        let existing_pair_result =
-            crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_pair_option = match existing_pair_result {
-            Ok(existing_pair_option) => existing_pair_option,
-            Err(error) => return Err(error),
-        };
-        let created_pair = existing_pair_option.is_none();
-        let pair_symbol = build_pair_symbol(base_mint.as_str(), quote_mint.as_str());
-        let pair_dto =
-            crate::PairDto::new(dex_id, pool_id, base_token_id, quote_token_id, pair_symbol);
-        let pair_id_result = crate::query_pairs_upsert(self.database.as_ref(), &pair_dto).await;
-        let pair_id = match pair_id_result {
-            Ok(pair_id) => pair_id,
-            Err(error) => return Err(error),
-        };
-        let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                base_token_id,
-                crate::PoolTokenRole::Base,
+        let input_result =
+            crate::dex_pool_materialization::DexPoolMaterializationInput::from_decoded_event(
+                decoded_event,
+                dex_id,
+                crate::PoolKind::Amm,
+                crate::PoolStatus::Active,
+                crate::dex_pool_materialization::DexPoolTokenOrder::AlreadyBaseQuote,
                 base_vault_address,
-                Some(0),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_base_pool_token_result {
-            return Err(error);
-        }
-        let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
-            self.database.as_ref(),
-            &crate::PoolTokenDto::new(
-                pool_id,
-                quote_token_id,
-                crate::PoolTokenRole::Quote,
                 quote_vault_address,
-                Some(1),
-            ),
-        )
-        .await;
-        if let Err(error) = upsert_quote_pool_token_result {
+                transaction.source_endpoint_name.clone(),
+            );
+        let input = match input_result {
+            Ok(input) => input,
+            Err(error) => return Err(error),
+        };
+        let detection_result =
+            crate::dex_pool_materialization::materialize_dex_pool(self.database.as_ref(), &input)
+                .await;
+        let detection_result = match detection_result {
+            Ok(detection_result) => detection_result,
+            Err(error) => return Err(error),
+        };
+        let signal_result = self
+            .record_pool_detection_signals(
+                transaction,
+                "signal.dex.raydium_cpmm",
+                &detection_result,
+                payload_value,
+            )
+            .await;
+        if let Err(error) = signal_result {
             return Err(error);
         }
-        let existing_listing_result =
-            crate::query_pool_listings_get_by_pool_id(self.database.as_ref(), pool_id).await;
-        let existing_listing_option = match existing_listing_result {
-            Ok(existing_listing_option) => existing_listing_option,
-            Err(error) => return Err(error),
-        };
-        let created_listing = existing_listing_option.is_none();
-        let pool_listing_id = match existing_listing_option {
-            Some(pool_listing) => pool_listing.id,
-            None => {
-                let listing_id_result = self
-                    .upsert_pool_listing_from_decoded_event(dex_id, pool_id, pair_id, transaction)
-                    .await;
-                match listing_id_result {
-                    Ok(listing_id) => Some(listing_id),
-                    Err(error) => return Err(error),
-                }
-            },
-        };
-        if created_pool {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.raydium_cpmm.new_pool",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_pair {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.raydium_cpmm.new_pair",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value.clone(),
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        if created_listing {
-            let signal_result = self
-                .record_detection_signal(
-                    transaction,
-                    "signal.dex.raydium_cpmm.first_listing_seen",
-                    crate::AnalysisSignalSeverity::Low,
-                    payload_value,
-                )
-                .await;
-            if let Err(error) = signal_result {
-                return Err(error);
-            }
-        }
-        return Ok(crate::DexPoolDetectionResult {
-            decoded_event_id,
-            dex_id,
-            pool_id,
-            pair_id,
-            pool_listing_id,
-            created_pool,
-            created_pair,
-            created_listing,
-        });
+        return Ok(detection_result);
     }
 
-    async fn ensure_raydium_cpmm_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result =
-            crate::query_dexs_get_by_code(self.database.as_ref(), "raydium_cpmm").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "raydium_cpmm dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "raydium_cpmm".to_string(),
-                    "Raydium CPMM".to_string(),
-                    Some(crate::RAYDIUM_CPMM_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_raydium_clmm_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result =
-            crate::query_dexs_get_by_code(self.database.as_ref(), "raydium_clmm").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "raydium_clmm dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "raydium_clmm".to_string(),
-                    "Raydium CLMM".to_string(),
-                    Some(crate::RAYDIUM_CLMM_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_dexlab_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result = crate::query_dexs_get_by_code(self.database.as_ref(), "dexlab").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "dexlab dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "dexlab".to_string(),
-                    "DexLab Swap/Pool".to_string(),
-                    Some(crate::DEXLAB_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_fluxbeam_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result = crate::query_dexs_get_by_code(self.database.as_ref(), "fluxbeam").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "fluxbeam dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "fluxbeam".to_string(),
-                    "FluxBeam".to_string(),
-                    Some(crate::FLUXBEAM_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_orca_whirlpools_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result =
-            crate::query_dexs_get_by_code(self.database.as_ref(), "orca_whirlpools").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "orca_whirlpools dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "orca_whirlpools".to_string(),
-                    "Orca Whirlpools".to_string(),
-                    Some(crate::ORCA_WHIRLPOOLS_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_meteora_damm_v1_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result =
-            crate::query_dexs_get_by_code(self.database.as_ref(), "meteora_damm_v1").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "meteora_damm_v1 dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "meteora_damm_v1".to_string(),
-                    "Meteora DAMM v1".to_string(),
-                    Some(crate::METEORA_DAMM_V1_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_meteora_damm_v2_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result =
-            crate::query_dexs_get_by_code(self.database.as_ref(), "meteora_damm_v2").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "meteora_damm_v2 dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "meteora_damm_v2".to_string(),
-                    "Meteora DAMM v2".to_string(),
-                    Some(crate::METEORA_DAMM_V2_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_meteora_dbc_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result = crate::query_dexs_get_by_code(self.database.as_ref(), "meteora_dbc").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "meteora_dbc dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "meteora_dbc".to_string(),
-                    "Meteora DBC".to_string(),
-                    Some(crate::METEORA_DBC_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_pump_swap_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result = crate::query_dexs_get_by_code(self.database.as_ref(), "pump_swap").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "pump_swap dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "pump_swap".to_string(),
-                    "PumpSwap".to_string(),
-                    Some(crate::PUMP_SWAP_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_pump_fun_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result = crate::query_dexs_get_by_code(self.database.as_ref(), "pump_fun").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "pump_fun dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "pump_fun".to_string(),
-                    "Pump.fun".to_string(),
-                    Some(crate::PUMP_FUN_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_raydium_dex(&self) -> Result<i64, crate::Error> {
-        let dex_result = crate::query_dexs_get_by_code(self.database.as_ref(), "raydium").await;
-        let dex_option = match dex_result {
-            Ok(dex_option) => dex_option,
-            Err(error) => return Err(error),
-        };
-        match dex_option {
-            Some(dex) => match dex.id {
-                Some(dex_id) => return Ok(dex_id),
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "raydium dex has no internal id".to_string(),
-                    ));
-                },
-            },
-            None => {
-                let dex_dto = crate::DexDto::new(
-                    "raydium".to_string(),
-                    "Raydium".to_string(),
-                    Some(crate::RAYDIUM_AMM_V4_PROGRAM_ID.to_string()),
-                    None,
-                    true,
-                );
-                return crate::query_dexs_upsert(self.database.as_ref(), &dex_dto).await;
-            },
-        }
-    }
-
-    async fn ensure_token(&self, mint: &str) -> Result<i64, crate::Error> {
-        let token_result = crate::query_tokens_get_by_mint(self.database.as_ref(), mint).await;
-        let token_option = match token_result {
-            Ok(token_option) => token_option,
-            Err(error) => return Err(error),
-        };
-        match token_option {
-            Some(token) => match token.id {
-                Some(token_id) => return Ok(token_id),
-                None => {
-                    return Err(crate::Error::InvalidState(format!(
-                        "token '{}' has no internal id",
-                        mint
-                    )));
-                },
-            },
-            None => {
-                let token_dto = crate::TokenDto::new(
-                    mint.to_string(),
-                    None,
-                    None,
-                    None,
-                    crate::SPL_TOKEN_PROGRAM_ID.to_string(),
-                    is_quote_mint(mint),
-                );
-                return crate::query_tokens_upsert(self.database.as_ref(), &token_dto).await;
-            },
-        }
-    }
-
-    async fn upsert_pool_listing_from_decoded_event(
+    async fn detect_materialized_pool_from_decoded_event(
         &self,
-        dex_id: i64,
-        pool_id: i64,
-        pair_id: i64,
         transaction: &crate::ChainTransactionDto,
-    ) -> Result<i64, crate::Error> {
-        let listing_dto = crate::PoolListingDto::new(
-            dex_id,
-            pool_id,
-            Some(pair_id),
-            crate::ObservationSourceKind::Dex,
-            transaction.source_endpoint_name.clone(),
-            None,
-            None,
-            None,
-        );
-        return crate::query_pool_listings_upsert(self.database.as_ref(), &listing_dto).await;
+        decoded_event: &crate::DexDecodedEventDto,
+        dex_code: &str,
+        pool_kind: crate::PoolKind,
+        pool_status: crate::PoolStatus,
+        signal_prefix: &str,
+    ) -> Result<crate::DexPoolDetectionResult, crate::Error> {
+        let dex_id_result =
+            crate::dex_catalog::ensure_known_dex(self.database.as_ref(), dex_code).await;
+        let dex_id = match dex_id_result {
+            Ok(dex_id) => dex_id,
+            Err(error) => return Err(error),
+        };
+        let input_result =
+            crate::dex_pool_materialization::DexPoolMaterializationInput::from_decoded_event(
+                decoded_event,
+                dex_id,
+                pool_kind,
+                pool_status,
+                crate::dex_pool_materialization::DexPoolTokenOrder::ChooseBaseQuoteFromTokenAB,
+                None,
+                None,
+                transaction.source_endpoint_name.clone(),
+            );
+        let input = match input_result {
+            Ok(input) => input,
+            Err(error) => return Err(error),
+        };
+        let detection_result =
+            crate::dex_pool_materialization::materialize_dex_pool(self.database.as_ref(), &input)
+                .await;
+        let detection_result = match detection_result {
+            Ok(detection_result) => detection_result,
+            Err(error) => return Err(error),
+        };
+        let payload_value_result = parse_payload_json(decoded_event.payload_json.as_str());
+        let payload_value = match payload_value_result {
+            Ok(payload_value) => payload_value,
+            Err(error) => return Err(error),
+        };
+        let signal_result = self
+            .record_pool_detection_signals(
+                transaction,
+                signal_prefix,
+                &detection_result,
+                payload_value,
+            )
+            .await;
+        if let Err(error) = signal_result {
+            return Err(error);
+        }
+        return Ok(detection_result);
     }
 
     async fn record_detection_signal(
@@ -3494,44 +663,58 @@ impl DexDetectService {
             ))
             .await;
     }
-}
 
-fn is_quote_mint(mint: &str) -> bool {
-    return mint == crate::WSOL_MINT_ID;
-}
-
-fn choose_base_quote_order(token_a_mint: &str, token_b_mint: &str) -> bool {
-    let token_a_is_quote = is_quote_mint(token_a_mint);
-    let token_b_is_quote = is_quote_mint(token_b_mint);
-    if token_a_is_quote && !token_b_is_quote {
-        return false;
+    async fn record_pool_detection_signals(
+        &self,
+        transaction: &crate::ChainTransactionDto,
+        signal_prefix: &str,
+        detection_result: &crate::DexPoolDetectionResult,
+        payload: serde_json::Value,
+    ) -> Result<(), crate::Error> {
+        if detection_result.created_pool {
+            let signal_kind = format!("{signal_prefix}.new_pool");
+            let signal_result = self
+                .record_detection_signal(
+                    transaction,
+                    signal_kind.as_str(),
+                    crate::AnalysisSignalSeverity::Low,
+                    payload.clone(),
+                )
+                .await;
+            if let Err(error) = signal_result {
+                return Err(error);
+            }
+        }
+        if detection_result.created_pair {
+            let signal_kind = format!("{signal_prefix}.new_pair");
+            let signal_result = self
+                .record_detection_signal(
+                    transaction,
+                    signal_kind.as_str(),
+                    crate::AnalysisSignalSeverity::Low,
+                    payload.clone(),
+                )
+                .await;
+            if let Err(error) = signal_result {
+                return Err(error);
+            }
+        }
+        if detection_result.created_listing {
+            let signal_kind = format!("{signal_prefix}.first_listing_seen");
+            let signal_result = self
+                .record_detection_signal(
+                    transaction,
+                    signal_kind.as_str(),
+                    crate::AnalysisSignalSeverity::Low,
+                    payload,
+                )
+                .await;
+            if let Err(error) = signal_result {
+                return Err(error);
+            }
+        }
+        return Ok(());
     }
-    if token_b_is_quote && !token_a_is_quote {
-        return true;
-    }
-    return true;
-}
-
-fn build_pair_symbol(
-    base_mint: &str,
-    quote_mint: &str,
-) -> std::option::Option<std::string::String> {
-    let base_symbol = symbol_hint_from_mint(base_mint);
-    let quote_symbol = symbol_hint_from_mint(quote_mint);
-
-    match (base_symbol, quote_symbol) {
-        (Some(base_symbol), Some(quote_symbol)) => {
-            return Some(format!("{base_symbol}/{quote_symbol}"));
-        },
-        _ => return None,
-    }
-}
-
-fn symbol_hint_from_mint(symbol_hint_from_mint: &str) -> std::option::Option<std::string::String> {
-    if symbol_hint_from_mint == crate::WSOL_MINT_ID {
-        return Some("WSOL".to_string());
-    }
-    return None;
 }
 
 fn parse_payload_json(payload_json: &str) -> Result<serde_json::Value, crate::Error> {
diff --git a/kb_lib/src/dex_detection_route.rs b/kb_lib/src/dex_detection_route.rs
new file mode 100644
index 0000000..42f7ec3
--- /dev/null
+++ b/kb_lib/src/dex_detection_route.rs
@@ -0,0 +1,131 @@
+// file: kb_lib/src/dex_detection_route.rs
+
+//! Routing from decoded DEX events to business-level detection handlers.
+
+/// Internal route selected for one decoded DEX event.
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub(crate) enum DexDetectionRoute {
+    /// Raydium AMM v4 initialize2 pool route.
+    RaydiumAmmV4Initialize2Pool,
+    /// Raydium CPMM trade route.
+    RaydiumCpmmTrade,
+    /// Raydium CLMM trade route.
+    RaydiumClmmTrade,
+    /// Pump.fun create token route.
+    PumpFunCreateV2Token,
+    /// Pump.fun trade route.
+    PumpFunTrade,
+    /// PumpSwap trade route.
+    PumpSwapTrade,
+    /// Incomplete PumpSwap event route.
+    SkipIncompletePumpSwapTrade,
+    /// Meteora DBC pool route.
+    MeteoraDbcPool,
+    /// Meteora DAMM v2 pool route.
+    MeteoraDammV2Pool,
+    /// Meteora DAMM v1 pool route.
+    MeteoraDammV1Pool,
+    /// Orca Whirlpools pool route.
+    OrcaWhirlpoolsPool,
+    /// FluxBeam pool route.
+    FluxbeamPool,
+    /// DexLab pool route.
+    DexlabPool,
+}
+
+/// Selects the business-level detection route for one decoded DEX event.
+pub(crate) fn dex_detection_route(
+    decoded_event: &crate::DexDecodedEventDto,
+) -> std::option::Option<crate::dex_detection_route::DexDetectionRoute> {
+    match (decoded_event.protocol_name.as_str(), decoded_event.event_kind.as_str()) {
+        ("raydium_amm_v4", "raydium_amm_v4.initialize2_pool") => {
+            return Some(
+                crate::dex_detection_route::DexDetectionRoute::RaydiumAmmV4Initialize2Pool,
+            );
+        },
+        ("raydium_cpmm", "raydium_cpmm.swap_base_input") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::RaydiumCpmmTrade);
+        },
+        ("raydium_cpmm", "raydium_cpmm.swap_base_output") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::RaydiumCpmmTrade);
+        },
+        ("raydium_clmm", "raydium_clmm.swap_v2") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::RaydiumClmmTrade);
+        },
+        ("pump_fun", "pump_fun.create_v2_token") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::PumpFunCreateV2Token);
+        },
+        ("pump_fun", "pump_fun.buy") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::PumpFunTrade);
+        },
+        ("pump_fun", "pump_fun.sell") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::PumpFunTrade);
+        },
+        ("pump_swap", "pump_swap.buy") => {
+            if crate::dex_detection_route::is_incomplete_pump_swap_decoded_event(decoded_event) {
+                return Some(
+                    crate::dex_detection_route::DexDetectionRoute::SkipIncompletePumpSwapTrade,
+                );
+            }
+            return Some(crate::dex_detection_route::DexDetectionRoute::PumpSwapTrade);
+        },
+        ("pump_swap", "pump_swap.sell") => {
+            if crate::dex_detection_route::is_incomplete_pump_swap_decoded_event(decoded_event) {
+                return Some(
+                    crate::dex_detection_route::DexDetectionRoute::SkipIncompletePumpSwapTrade,
+                );
+            }
+            return Some(crate::dex_detection_route::DexDetectionRoute::PumpSwapTrade);
+        },
+        ("meteora_dbc", "meteora_dbc.create_pool") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::MeteoraDbcPool);
+        },
+        ("meteora_dbc", "meteora_dbc.swap") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::MeteoraDbcPool);
+        },
+        ("meteora_damm_v2", "meteora_damm_v2.create_pool") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::MeteoraDammV2Pool);
+        },
+        ("meteora_damm_v2", "meteora_damm_v2.swap") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::MeteoraDammV2Pool);
+        },
+        ("meteora_damm_v1", "meteora_damm_v1.create_pool") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::MeteoraDammV1Pool);
+        },
+        ("meteora_damm_v1", "meteora_damm_v1.swap") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::MeteoraDammV1Pool);
+        },
+        ("orca_whirlpools", "orca_whirlpools.create_pool") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::OrcaWhirlpoolsPool);
+        },
+        ("orca_whirlpools", "orca_whirlpools.swap") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::OrcaWhirlpoolsPool);
+        },
+        ("fluxbeam", "fluxbeam.create_pool") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::FluxbeamPool);
+        },
+        ("fluxbeam", "fluxbeam.swap") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::FluxbeamPool);
+        },
+        ("dexlab", "dexlab.create_pool") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::DexlabPool);
+        },
+        ("dexlab", "dexlab.swap") => {
+            return Some(crate::dex_detection_route::DexDetectionRoute::DexlabPool);
+        },
+        _ => return None,
+    }
+}
+
+fn is_incomplete_pump_swap_decoded_event(decoded_event: &crate::DexDecodedEventDto) -> bool {
+    if decoded_event.pool_account.is_none() {
+        return true;
+    }
+    if decoded_event.token_a_mint.is_none() {
+        return true;
+    }
+    if decoded_event.token_b_mint.is_none() {
+        return true;
+    }
+    return false;
+}
diff --git a/kb_lib/src/dex_event_classification.rs b/kb_lib/src/dex_event_classification.rs
new file mode 100644
index 0000000..2da9dca
--- /dev/null
+++ b/kb_lib/src/dex_event_classification.rs
@@ -0,0 +1,509 @@
+// file: kb_lib/src/dex_event_classification.rs
+
+//! Shared DEX event classification and decoded-payload enrichment.
+//!
+//! This module contains deterministic helpers used by DEX decoding,
+//! trade aggregation and future non-trade event materialization.
+//!
+//! It intentionally does not decode protocol instructions and does not
+//! perform database access.
+
+/// Stable business category assigned to one decoded DEX event kind.
+#[derive(Debug, Copy, Clone, Eq, PartialEq, serde::Serialize, serde::Deserialize)]
+pub enum DexEventCategory {
+    /// Swap-like event that can potentially become a normalized trade.
+    Trade,
+    /// Liquidity deposit, withdraw, position open or position close event.
+    Liquidity,
+    /// Fee collection event.
+    Fee,
+    /// Reward or emission event.
+    Reward,
+    /// Pool creation, initialization or migration event.
+    PoolLifecycle,
+    /// Protocol administration, configuration or permission update event.
+    Admin,
+    /// Event kind that is not classified yet.
+    Unknown,
+}
+
+impl DexEventCategory {
+    /// Returns the stable string code persisted inside decoded payload metadata.
+    pub fn as_str(self) -> &'static str {
+        match self {
+            Self::Trade => return "trade",
+            Self::Liquidity => return "liquidity",
+            Self::Fee => return "fee",
+            Self::Reward => return "reward",
+            Self::PoolLifecycle => return "pool_lifecycle",
+            Self::Admin => return "admin",
+            Self::Unknown => return "unknown",
+        }
+    }
+}
+
+/// Classifies a DEX event kind into a stable business category.
+pub fn classify_dex_event_category(event_kind: &str) -> DexEventCategory {
+    if is_dex_reward_event_kind(event_kind) {
+        return DexEventCategory::Reward;
+    }
+    if is_dex_fee_event_kind(event_kind) {
+        return DexEventCategory::Fee;
+    }
+    if is_dex_liquidity_event_kind(event_kind) {
+        return DexEventCategory::Liquidity;
+    }
+    if is_dex_pool_lifecycle_event_kind(event_kind) {
+        return DexEventCategory::PoolLifecycle;
+    }
+    if is_dex_admin_event_kind(event_kind) {
+        return DexEventCategory::Admin;
+    }
+    if is_dex_trade_event_kind(event_kind) {
+        return DexEventCategory::Trade;
+    }
+    return DexEventCategory::Unknown;
+}
+
+/// Classifies a DEX event kind and returns the persisted category code.
+pub fn classify_dex_event_category_code(event_kind: &str) -> &'static str {
+    return classify_dex_event_category(event_kind).as_str();
+}
+
+/// Returns true when the event kind represents a swap-like event.
+pub fn is_dex_trade_event_kind(event_kind: &str) -> bool {
+    if event_kind.ends_with(".buy") {
+        return true;
+    }
+    if event_kind.ends_with(".sell") {
+        return true;
+    }
+    if event_kind.ends_with(".swap") {
+        return true;
+    }
+    if event_kind.contains(".swap_") {
+        return true;
+    }
+    if event_kind.ends_with(".exact_input") {
+        return true;
+    }
+    if event_kind.ends_with(".exact_output") {
+        return true;
+    }
+    return false;
+}
+
+/// Returns true when the event kind can directly produce a candle candidate.
+pub fn is_dex_candle_candidate_event_kind(event_kind: &str) -> bool {
+    if event_kind.contains("router") {
+        return false;
+    }
+    if event_kind.contains("route") {
+        return false;
+    }
+    return is_dex_trade_event_kind(event_kind);
+}
+
+/// Returns true for liquidity lifecycle changes that must not become candles.
+pub fn is_dex_liquidity_event_kind(event_kind: &str) -> bool {
+    if event_kind.contains(".deposit") {
+        return true;
+    }
+    if event_kind.contains(".withdraw") {
+        return true;
+    }
+    if event_kind.contains(".increase_liquidity") {
+        return true;
+    }
+    if event_kind.contains(".decrease_liquidity") {
+        return true;
+    }
+    if event_kind.contains(".open_position") {
+        return true;
+    }
+    if event_kind.contains(".close_position") {
+        return true;
+    }
+    return false;
+}
+
+/// Returns true for fee collection events.
+pub fn is_dex_fee_event_kind(event_kind: &str) -> bool {
+    if event_kind.contains("collect_creator_fee") {
+        return true;
+    }
+    if event_kind.contains("collect_protocol_fee") {
+        return true;
+    }
+    if event_kind.contains("collect_fund_fee") {
+        return true;
+    }
+    if event_kind.contains("collect_fee") {
+        return true;
+    }
+    return false;
+}
+
+/// Returns true for reward or incentive events.
+pub fn is_dex_reward_event_kind(event_kind: &str) -> bool {
+    if event_kind.contains("reward") {
+        return true;
+    }
+    if event_kind.contains("emission") {
+        return true;
+    }
+    return false;
+}
+
+/// Returns true for pool creation, initialization or migration events.
+pub fn is_dex_pool_lifecycle_event_kind(event_kind: &str) -> bool {
+    if event_kind.contains(".initialize") {
+        return true;
+    }
+    if event_kind.contains(".initialize_with_permission") {
+        return true;
+    }
+    if event_kind.contains(".create_pool") {
+        return true;
+    }
+    if event_kind.contains(".create_v2_token") {
+        return true;
+    }
+    if event_kind.contains(".migrate") {
+        return true;
+    }
+    return false;
+}
+
+/// Returns true for admin, configuration or permission changes.
+pub fn is_dex_admin_event_kind(event_kind: &str) -> bool {
+    if event_kind.contains("admin") {
+        return true;
+    }
+    if event_kind.contains("config") {
+        return true;
+    }
+    if event_kind.contains("permission") {
+        return true;
+    }
+    if event_kind.contains("set_") {
+        return true;
+    }
+    if event_kind.contains("update_") {
+        return true;
+    }
+    return false;
+}
+
+/// Returns true when a decoded payload is marked as a trade candidate.
+///
+/// Explicit payload metadata wins over event-kind inference. This allows
+/// incomplete decoded events, such as incomplete PumpSwap trades, to opt out.
+pub fn is_decoded_event_trade_candidate(event_kind: &str, payload: &serde_json::Value) -> bool {
+    let trade_candidate_option =
+        extract_top_level_bool_by_candidate_keys(payload, &["tradeCandidate", "trade_candidate"]);
+    if let Some(trade_candidate) = trade_candidate_option {
+        return trade_candidate;
+    }
+    let event_category_option =
+        extract_string_by_candidate_keys(payload, &["eventCategory", "event_category"]);
+    if let Some(event_category) = event_category_option {
+        return event_category.as_str() == DexEventCategory::Trade.as_str();
+    }
+    return is_dex_trade_event_kind(event_kind);
+}
+
+/// Returns true when a decoded payload can be materialized as a candle candidate.
+pub fn is_decoded_event_candle_candidate(event_kind: &str, payload: &serde_json::Value) -> bool {
+    let candle_candidate_option =
+        extract_top_level_bool_by_candidate_keys(payload, &["candleCandidate", "candle_candidate"]);
+    if let Some(candle_candidate) = candle_candidate_option {
+        return candle_candidate;
+    }
+    if !is_decoded_event_trade_candidate(event_kind, payload) {
+        return false;
+    }
+    return is_dex_candle_candidate_event_kind(event_kind);
+}
+
+/// Enriches a decoded payload with non-destructive classification metadata.
+pub fn enrich_dex_decoded_payload(
+    protocol_name: &str,
+    event_kind: &str,
+    payload_json: serde_json::Value,
+) -> serde_json::Value {
+    let event_category = classify_dex_event_category_code(event_kind);
+    let trade_candidate = is_dex_trade_event_kind(event_kind);
+    let candle_candidate = is_dex_candle_candidate_event_kind(event_kind);
+    let mut object = match payload_json {
+        serde_json::Value::Object(object) => object,
+        other => {
+            let mut object = serde_json::Map::new();
+            object.insert("rawPayload".to_owned(), other);
+            object
+        },
+    };
+    json_insert_string_if_missing(&mut object, "protocolName", protocol_name);
+    json_insert_string_if_missing(&mut object, "eventKind", event_kind);
+    json_insert_string_if_missing(&mut object, "eventCategory", event_category);
+    json_insert_bool_if_missing(&mut object, "tradeCandidate", trade_candidate);
+    json_insert_bool_if_missing(&mut object, "candleCandidate", candle_candidate);
+    json_insert_i64_if_missing(&mut object, "eventClassificationVersion", 1);
+    if !trade_candidate {
+        json_insert_string_if_missing(&mut object, "skipTradeReason", "non_trade_event");
+    } else if !candle_candidate {
+        json_insert_string_if_missing(
+            &mut object,
+            "skipCandleReason",
+            "route_or_multihop_event_requires_leg_resolution",
+        );
+    }
+    return serde_json::Value::Object(object);
+}
+
+/// Enriches a decoded payload and serializes it as JSON.
+pub fn enrich_and_serialize_dex_decoded_payload(
+    protocol_name: &str,
+    event_kind: &str,
+    payload_json: serde_json::Value,
+) -> Result<std::string::String, crate::Error> {
+    let enriched_payload = enrich_dex_decoded_payload(protocol_name, event_kind, payload_json);
+    let payload_json_result = serde_json::to_string(&enriched_payload);
+    match payload_json_result {
+        Ok(payload_json) => return Ok(payload_json),
+        Err(error) => {
+            return Err(crate::Error::Json(format!(
+                "cannot serialize enriched decoded payload for '{}': {}",
+                event_kind, error
+            )));
+        },
+    }
+}
+
+/// Parses, enriches and serializes a decoded payload.
+pub fn enrich_serialized_dex_decoded_payload(
+    protocol_name: &str,
+    event_kind: &str,
+    payload_json: &str,
+) -> Result<std::string::String, crate::Error> {
+    let payload_value_result = serde_json::from_str::<serde_json::Value>(payload_json);
+    let payload_value = match payload_value_result {
+        Ok(payload_value) => payload_value,
+        Err(error) => {
+            return Err(crate::Error::Json(format!(
+                "cannot parse decoded payload for '{}': {}",
+                event_kind, error
+            )));
+        },
+    };
+    return enrich_and_serialize_dex_decoded_payload(protocol_name, event_kind, payload_value);
+}
+
+fn json_insert_string_if_missing(
+    object: &mut serde_json::Map<std::string::String, serde_json::Value>,
+    key: &str,
+    value: &str,
+) {
+    if object.contains_key(key) {
+        return;
+    }
+    object.insert(key.to_owned(), serde_json::Value::String(value.to_owned()));
+}
+
+fn json_insert_bool_if_missing(
+    object: &mut serde_json::Map<std::string::String, serde_json::Value>,
+    key: &str,
+    value: bool,
+) {
+    if object.contains_key(key) {
+        return;
+    }
+    object.insert(key.to_owned(), serde_json::Value::Bool(value));
+}
+
+fn json_insert_i64_if_missing(
+    object: &mut serde_json::Map<std::string::String, serde_json::Value>,
+    key: &str,
+    value: i64,
+) {
+    if object.contains_key(key) {
+        return;
+    }
+    object.insert(key.to_owned(), serde_json::Value::Number(serde_json::Number::from(value)));
+}
+
+fn extract_top_level_bool_by_candidate_keys(
+    payload: &serde_json::Value,
+    candidate_keys: &[&str],
+) -> std::option::Option<bool> {
+    let object = match payload.as_object() {
+        Some(object) => object,
+        None => return None,
+    };
+    for candidate_key in candidate_keys {
+        let value_option = object.get(*candidate_key);
+        let value = match value_option {
+            Some(value) => value,
+            None => continue,
+        };
+        if let Some(value_bool) = value.as_bool() {
+            return Some(value_bool);
+        }
+        if let Some(value_i64) = value.as_i64() {
+            return Some(value_i64 != 0);
+        }
+        if let Some(value_u64) = value.as_u64() {
+            return Some(value_u64 != 0);
+        }
+        if let Some(value_text) = value.as_str() {
+            let normalized = value_text.trim().to_ascii_lowercase();
+            if normalized.as_str() == "true" {
+                return Some(true);
+            }
+            if normalized.as_str() == "false" {
+                return Some(false);
+            }
+            if normalized.as_str() == "1" {
+                return Some(true);
+            }
+            if normalized.as_str() == "0" {
+                return Some(false);
+            }
+        }
+    }
+    return None;
+}
+
+fn extract_string_by_candidate_keys(
+    value: &serde_json::Value,
+    candidate_keys: &[&str],
+) -> std::option::Option<std::string::String> {
+    if let Some(object) = value.as_object() {
+        for candidate_key in candidate_keys {
+            let direct_option = object.get(*candidate_key);
+            if let Some(direct) = direct_option {
+                let direct_text_option = direct.as_str();
+                if let Some(direct_text) = direct_text_option {
+                    return Some(direct_text.to_string());
+                }
+            }
+        }
+        for nested_value in object.values() {
+            let nested_result = extract_string_by_candidate_keys(nested_value, candidate_keys);
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+        return None;
+    }
+    if let Some(array) = value.as_array() {
+        for nested_value in array {
+            let nested_result = extract_string_by_candidate_keys(nested_value, candidate_keys);
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+    }
+
+    return None;
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn classifies_swap_events_as_trade_candidates() {
+        assert_eq!(
+            super::classify_dex_event_category_code("raydium_cpmm.swap_base_input"),
+            "trade"
+        );
+        assert_eq!(
+            super::classify_dex_event_category_code("raydium_cpmm.swap_base_output"),
+            "trade"
+        );
+        assert_eq!(super::classify_dex_event_category_code("raydium_clmm.swap"), "trade");
+        assert_eq!(super::classify_dex_event_category_code("raydium_clmm.swap_v2"), "trade");
+        assert_eq!(super::classify_dex_event_category_code("raydium_clmm.exact_output"), "trade");
+        assert_eq!(super::classify_dex_event_category_code("pump_fun.buy"), "trade");
+        assert!(super::is_dex_trade_event_kind("raydium_cpmm.swap_base_input"));
+        assert!(super::is_dex_candle_candidate_event_kind("raydium_cpmm.swap_base_input"));
+    }
+
+    #[test]
+    fn classifies_router_swap_as_trade_but_not_direct_candle_candidate() {
+        assert_eq!(
+            super::classify_dex_event_category_code("raydium_clmm.swap_router_base_in"),
+            "trade"
+        );
+        assert!(super::is_dex_trade_event_kind("raydium_clmm.swap_router_base_in"));
+        assert!(!super::is_dex_candle_candidate_event_kind("raydium_clmm.swap_router_base_in"));
+    }
+
+    #[test]
+    fn classifies_fee_reward_liquidity_and_lifecycle_events() {
+        assert_eq!(
+            super::classify_dex_event_category_code("raydium_cpmm.collect_creator_fee"),
+            "fee"
+        );
+        assert_eq!(
+            super::classify_dex_event_category_code("raydium_clmm.collect_protocol_fee"),
+            "fee"
+        );
+        assert_eq!(
+            super::classify_dex_event_category_code("raydium_clmm.set_reward_params"),
+            "reward"
+        );
+        assert_eq!(
+            super::classify_dex_event_category_code("raydium_clmm.increase_liquidity_v2"),
+            "liquidity"
+        );
+        assert_eq!(
+            super::classify_dex_event_category_code("raydium_cpmm.initialize"),
+            "pool_lifecycle"
+        );
+    }
+
+    #[test]
+    fn enriched_payload_keeps_existing_fields() {
+        let payload_json = serde_json::json!({
+            "eventCategory": "custom",
+            "amountIn": "10"
+        });
+        let enriched_payload = super::enrich_dex_decoded_payload(
+            "raydium_cpmm",
+            "raydium_cpmm.swap_base_input",
+            payload_json,
+        );
+
+        let object_option = enriched_payload.as_object();
+        let object = match object_option {
+            Some(object) => object,
+            None => {
+                panic!("expected enriched payload object");
+            },
+        };
+        assert_eq!(
+            object.get("eventCategory"),
+            Some(&serde_json::Value::String("custom".to_owned()))
+        );
+        assert_eq!(
+            object.get("protocolName"),
+            Some(&serde_json::Value::String("raydium_cpmm".to_owned()))
+        );
+        assert_eq!(
+            object.get("eventKind"),
+            Some(&serde_json::Value::String("raydium_cpmm.swap_base_input".to_owned()))
+        );
+        assert_eq!(object.get("tradeCandidate"), Some(&serde_json::Value::Bool(true)));
+        assert_eq!(object.get("candleCandidate"), Some(&serde_json::Value::Bool(true)));
+    }
+
+    #[test]
+    fn decoded_event_payload_candidate_flags_win_over_event_kind() {
+        let payload_json = serde_json::json!({
+            "tradeCandidate": false,
+            "candleCandidate": false
+        });
+        assert!(!super::is_decoded_event_trade_candidate("pump_swap.buy", &payload_json));
+        assert!(!super::is_decoded_event_candle_candidate("pump_swap.buy", &payload_json));
+    }
+}
diff --git a/kb_lib/src/dex_pool_materialization.rs b/kb_lib/src/dex_pool_materialization.rs
new file mode 100644
index 0000000..ee862f1
--- /dev/null
+++ b/kb_lib/src/dex_pool_materialization.rs
@@ -0,0 +1,662 @@
+// file: kb_lib/src/dex_pool_materialization.rs
+
+//! Shared DEX pool materialization helpers.
+//!
+//! This module persists normalized pool, pair, pool token and pool listing
+//! records from decoded DEX events.
+//!
+//! It intentionally does not decode instructions and does not record analysis
+//! signals. Detection services remain responsible for deciding which signals
+//! to emit.
+
+/// Token ordering strategy used when materializing a decoded DEX pool.
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub(crate) enum DexPoolTokenOrder {
+    /// `token_a_mint` is already the base token and `token_b_mint` is already the quote token.
+    AlreadyBaseQuote,
+    /// Base/quote order should be chosen from token A/B using known quote-token hints.
+    ChooseBaseQuoteFromTokenAB,
+}
+
+/// Input required to materialize a normalized DEX pool.
+#[derive(Debug, Clone)]
+pub(crate) struct DexPoolMaterializationInput {
+    /// Parent decoded event id.
+    pub(crate) decoded_event_id: i64,
+    /// Internal DEX id.
+    pub(crate) dex_id: i64,
+    /// Pool account address.
+    pub(crate) pool_address: std::string::String,
+    /// Token A mint, or already-base mint depending on `token_order`.
+    pub(crate) token_a_mint: std::string::String,
+    /// Token B mint, or already-quote mint depending on `token_order`.
+    pub(crate) token_b_mint: std::string::String,
+    /// Optional LP mint.
+    pub(crate) lp_mint: std::option::Option<std::string::String>,
+    /// Optional token A vault address, or base vault when `token_order` is `AlreadyBaseQuote`.
+    pub(crate) token_a_vault_address: std::option::Option<std::string::String>,
+    /// Optional token B vault address, or quote vault when `token_order` is `AlreadyBaseQuote`.
+    pub(crate) token_b_vault_address: std::option::Option<std::string::String>,
+    /// Pool kind to persist.
+    pub(crate) pool_kind: crate::PoolKind,
+    /// Pool status to persist.
+    pub(crate) pool_status: crate::PoolStatus,
+    /// Token ordering strategy.
+    pub(crate) token_order: crate::dex_pool_materialization::DexPoolTokenOrder,
+    /// Listing source kind.
+    pub(crate) listing_source_kind: crate::ObservationSourceKind,
+    /// Optional source endpoint logical name.
+    pub(crate) source_endpoint_name: std::option::Option<std::string::String>,
+}
+
+impl DexPoolMaterializationInput {
+    /// Creates a materialization input from a decoded event requiring pool and two token mints.
+    pub(crate) fn from_decoded_event(
+        decoded_event: &crate::DexDecodedEventDto,
+        dex_id: i64,
+        pool_kind: crate::PoolKind,
+        pool_status: crate::PoolStatus,
+        token_order: crate::dex_pool_materialization::DexPoolTokenOrder,
+        token_a_vault_address: std::option::Option<std::string::String>,
+        token_b_vault_address: std::option::Option<std::string::String>,
+        source_endpoint_name: std::option::Option<std::string::String>,
+    ) -> Result<Self, crate::Error> {
+        let decoded_event_id_result =
+            crate::dex_pool_materialization::required_decoded_event_id(decoded_event);
+        let decoded_event_id = match decoded_event_id_result {
+            Ok(decoded_event_id) => decoded_event_id,
+            Err(error) => return Err(error),
+        };
+        let pool_address_result =
+            crate::dex_pool_materialization::required_pool_account(decoded_event);
+        let pool_address = match pool_address_result {
+            Ok(pool_address) => pool_address,
+            Err(error) => return Err(error),
+        };
+        let token_a_mint_result =
+            crate::dex_pool_materialization::required_token_a_mint(decoded_event);
+        let token_a_mint = match token_a_mint_result {
+            Ok(token_a_mint) => token_a_mint,
+            Err(error) => return Err(error),
+        };
+        let token_b_mint_result =
+            crate::dex_pool_materialization::required_token_b_mint(decoded_event);
+        let token_b_mint = match token_b_mint_result {
+            Ok(token_b_mint) => token_b_mint,
+            Err(error) => return Err(error),
+        };
+        return Ok(Self {
+            decoded_event_id,
+            dex_id,
+            pool_address,
+            token_a_mint,
+            token_b_mint,
+            lp_mint: decoded_event.lp_mint.clone(),
+            token_a_vault_address,
+            token_b_vault_address,
+            pool_kind,
+            pool_status,
+            token_order,
+            listing_source_kind: crate::ObservationSourceKind::Dex,
+            source_endpoint_name,
+        });
+    }
+
+    /// Creates a materialization input from a decoded event and explicit token mints.
+    ///
+    /// This is used by launch or bonding-curve events where the decoded event
+    /// may expose only the launched token mint and the quote mint is inferred
+    /// by the detector.
+    pub(crate) fn from_decoded_event_with_mints(
+        decoded_event: &crate::DexDecodedEventDto,
+        dex_id: i64,
+        token_a_mint: std::string::String,
+        token_b_mint: std::string::String,
+        lp_mint: std::option::Option<std::string::String>,
+        pool_kind: crate::PoolKind,
+        pool_status: crate::PoolStatus,
+        token_order: crate::dex_pool_materialization::DexPoolTokenOrder,
+        token_a_vault_address: std::option::Option<std::string::String>,
+        token_b_vault_address: std::option::Option<std::string::String>,
+        source_endpoint_name: std::option::Option<std::string::String>,
+    ) -> Result<Self, crate::Error> {
+        let decoded_event_id_result =
+            crate::dex_pool_materialization::required_decoded_event_id(decoded_event);
+        let decoded_event_id = match decoded_event_id_result {
+            Ok(decoded_event_id) => decoded_event_id,
+            Err(error) => return Err(error),
+        };
+        let pool_address_result =
+            crate::dex_pool_materialization::required_pool_account(decoded_event);
+        let pool_address = match pool_address_result {
+            Ok(pool_address) => pool_address,
+            Err(error) => return Err(error),
+        };
+        return Ok(Self {
+            decoded_event_id,
+            dex_id,
+            pool_address,
+            token_a_mint,
+            token_b_mint,
+            lp_mint,
+            token_a_vault_address,
+            token_b_vault_address,
+            pool_kind,
+            pool_status,
+            token_order,
+            listing_source_kind: crate::ObservationSourceKind::Dex,
+            source_endpoint_name,
+        });
+    }
+}
+
+/// Returns the decoded event id or fails with a stable diagnostic.
+pub(crate) fn required_decoded_event_id(
+    decoded_event: &crate::DexDecodedEventDto,
+) -> Result<i64, crate::Error> {
+    match decoded_event.id {
+        Some(decoded_event_id) => return Ok(decoded_event_id),
+        None => {
+            return Err(crate::Error::InvalidState(
+                "decoded dex event has no internal id".to_string(),
+            ));
+        },
+    }
+}
+
+/// Returns the pool account or fails with a stable diagnostic.
+pub(crate) fn required_pool_account(
+    decoded_event: &crate::DexDecodedEventDto,
+) -> Result<std::string::String, crate::Error> {
+    let decoded_event_id_result =
+        crate::dex_pool_materialization::required_decoded_event_id(decoded_event);
+    let decoded_event_id = match decoded_event_id_result {
+        Ok(decoded_event_id) => decoded_event_id,
+        Err(error) => return Err(error),
+    };
+    match decoded_event.pool_account.clone() {
+        Some(pool_account) => return Ok(pool_account),
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "decoded event '{}' has no pool_account",
+                decoded_event_id
+            )));
+        },
+    }
+}
+
+/// Returns token A mint or fails with a stable diagnostic.
+pub(crate) fn required_token_a_mint(
+    decoded_event: &crate::DexDecodedEventDto,
+) -> Result<std::string::String, crate::Error> {
+    let decoded_event_id_result =
+        crate::dex_pool_materialization::required_decoded_event_id(decoded_event);
+    let decoded_event_id = match decoded_event_id_result {
+        Ok(decoded_event_id) => decoded_event_id,
+        Err(error) => return Err(error),
+    };
+    match decoded_event.token_a_mint.clone() {
+        Some(token_a_mint) => return Ok(token_a_mint),
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "decoded event '{}' has no token_a_mint",
+                decoded_event_id
+            )));
+        },
+    }
+}
+
+/// Returns token B mint or fails with a stable diagnostic.
+pub(crate) fn required_token_b_mint(
+    decoded_event: &crate::DexDecodedEventDto,
+) -> Result<std::string::String, crate::Error> {
+    let decoded_event_id_result =
+        crate::dex_pool_materialization::required_decoded_event_id(decoded_event);
+    let decoded_event_id = match decoded_event_id_result {
+        Ok(decoded_event_id) => decoded_event_id,
+        Err(error) => return Err(error),
+    };
+    match decoded_event.token_b_mint.clone() {
+        Some(token_b_mint) => return Ok(token_b_mint),
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "decoded event '{}' has no token_b_mint",
+                decoded_event_id
+            )));
+        },
+    }
+}
+
+/// Persists pool, pair, pool tokens and listing, returning the materialized ids.
+pub(crate) async fn materialize_dex_pool(
+    database: &crate::Database,
+    input: &crate::dex_pool_materialization::DexPoolMaterializationInput,
+) -> Result<crate::DexPoolDetectionResult, crate::Error> {
+    let ordered_tokens = crate::dex_pool_materialization::ordered_pool_tokens_from_input(input);
+    let base_token_id_result =
+        crate::dex_pool_materialization::ensure_token(database, ordered_tokens.base_mint.as_str())
+            .await;
+    let base_token_id = match base_token_id_result {
+        Ok(base_token_id) => base_token_id,
+        Err(error) => return Err(error),
+    };
+    let quote_token_id_result =
+        crate::dex_pool_materialization::ensure_token(database, ordered_tokens.quote_mint.as_str())
+            .await;
+    let quote_token_id = match quote_token_id_result {
+        Ok(quote_token_id) => quote_token_id,
+        Err(error) => return Err(error),
+    };
+    let lp_token_id = match input.lp_mint.clone() {
+        Some(lp_mint) => {
+            let lp_token_id_result =
+                crate::dex_pool_materialization::ensure_token(database, lp_mint.as_str()).await;
+            match lp_token_id_result {
+                Ok(lp_token_id) => Some(lp_token_id),
+                Err(error) => return Err(error),
+            }
+        },
+        None => None,
+    };
+    let pool_result = crate::dex_pool_materialization::ensure_pool(database, input).await;
+    let pool_materialization = match pool_result {
+        Ok(pool_materialization) => pool_materialization,
+        Err(error) => return Err(error),
+    };
+    let pair_result = crate::dex_pool_materialization::ensure_pair(
+        database,
+        input.dex_id,
+        pool_materialization.pool_id,
+        base_token_id,
+        quote_token_id,
+        ordered_tokens.base_mint.as_str(),
+        ordered_tokens.quote_mint.as_str(),
+    )
+    .await;
+    let pair_materialization = match pair_result {
+        Ok(pair_materialization) => pair_materialization,
+        Err(error) => return Err(error),
+    };
+    let upsert_base_pool_token_result = crate::query_pool_tokens_upsert(
+        database,
+        &crate::PoolTokenDto::new(
+            pool_materialization.pool_id,
+            base_token_id,
+            crate::PoolTokenRole::Base,
+            ordered_tokens.base_vault_address,
+            Some(0),
+        ),
+    )
+    .await;
+    if let Err(error) = upsert_base_pool_token_result {
+        return Err(error);
+    }
+    let upsert_quote_pool_token_result = crate::query_pool_tokens_upsert(
+        database,
+        &crate::PoolTokenDto::new(
+            pool_materialization.pool_id,
+            quote_token_id,
+            crate::PoolTokenRole::Quote,
+            ordered_tokens.quote_vault_address,
+            Some(1),
+        ),
+    )
+    .await;
+    if let Err(error) = upsert_quote_pool_token_result {
+        return Err(error);
+    }
+    if let Some(lp_token_id) = lp_token_id {
+        let upsert_lp_pool_token_result = crate::query_pool_tokens_upsert(
+            database,
+            &crate::PoolTokenDto::new(
+                pool_materialization.pool_id,
+                lp_token_id,
+                crate::PoolTokenRole::LpMint,
+                None,
+                None,
+            ),
+        )
+        .await;
+        if let Err(error) = upsert_lp_pool_token_result {
+            return Err(error);
+        }
+    }
+    let listing_result = crate::dex_pool_materialization::ensure_pool_listing(
+        database,
+        input,
+        pool_materialization.pool_id,
+        pair_materialization.pair_id,
+    )
+    .await;
+    let listing_materialization = match listing_result {
+        Ok(listing_materialization) => listing_materialization,
+        Err(error) => return Err(error),
+    };
+    return Ok(crate::DexPoolDetectionResult {
+        decoded_event_id: input.decoded_event_id,
+        dex_id: input.dex_id,
+        pool_id: pool_materialization.pool_id,
+        pair_id: pair_materialization.pair_id,
+        pool_listing_id: listing_materialization.pool_listing_id,
+        created_pool: pool_materialization.created_pool,
+        created_pair: pair_materialization.created_pair,
+        created_listing: listing_materialization.created_listing,
+    });
+}
+
+#[derive(Debug, Clone)]
+struct OrderedPoolTokens {
+    base_mint: std::string::String,
+    quote_mint: std::string::String,
+    base_vault_address: std::option::Option<std::string::String>,
+    quote_vault_address: std::option::Option<std::string::String>,
+}
+
+fn ordered_pool_tokens_from_input(
+    input: &crate::dex_pool_materialization::DexPoolMaterializationInput,
+) -> OrderedPoolTokens {
+    match input.token_order {
+        crate::dex_pool_materialization::DexPoolTokenOrder::AlreadyBaseQuote => {
+            return OrderedPoolTokens {
+                base_mint: input.token_a_mint.clone(),
+                quote_mint: input.token_b_mint.clone(),
+                base_vault_address: input.token_a_vault_address.clone(),
+                quote_vault_address: input.token_b_vault_address.clone(),
+            };
+        },
+        crate::dex_pool_materialization::DexPoolTokenOrder::ChooseBaseQuoteFromTokenAB => {
+            let base_is_token_a = crate::dex_pool_materialization::choose_base_quote_order(
+                input.token_a_mint.as_str(),
+                input.token_b_mint.as_str(),
+            );
+            let base_mint = if base_is_token_a {
+                input.token_a_mint.clone()
+            } else {
+                input.token_b_mint.clone()
+            };
+            let quote_mint = if base_is_token_a {
+                input.token_b_mint.clone()
+            } else {
+                input.token_a_mint.clone()
+            };
+            let base_vault_address = if base_is_token_a {
+                input.token_a_vault_address.clone()
+            } else {
+                input.token_b_vault_address.clone()
+            };
+            let quote_vault_address = if base_is_token_a {
+                input.token_b_vault_address.clone()
+            } else {
+                input.token_a_vault_address.clone()
+            };
+            return OrderedPoolTokens {
+                base_mint,
+                quote_mint,
+                base_vault_address,
+                quote_vault_address,
+            };
+        },
+    }
+}
+
+async fn ensure_pool(
+    database: &crate::Database,
+    input: &crate::dex_pool_materialization::DexPoolMaterializationInput,
+) -> Result<PoolMaterialization, crate::Error> {
+    let existing_pool_result =
+        crate::query_pools_get_by_address(database, input.pool_address.as_str()).await;
+    let existing_pool_option = match existing_pool_result {
+        Ok(existing_pool_option) => existing_pool_option,
+        Err(error) => return Err(error),
+    };
+    let created_pool = existing_pool_option.is_none();
+    let pool_id = match existing_pool_option {
+        Some(pool) => match pool.id {
+            Some(pool_id) => pool_id,
+            None => {
+                return Err(crate::Error::InvalidState(format!(
+                    "pool '{}' has no internal id",
+                    pool.address
+                )));
+            },
+        },
+        None => {
+            let pool_dto = crate::PoolDto::new(
+                input.dex_id,
+                input.pool_address.clone(),
+                input.pool_kind,
+                input.pool_status,
+            );
+            let upsert_result = crate::query_pools_upsert(database, &pool_dto).await;
+            match upsert_result {
+                Ok(pool_id) => pool_id,
+                Err(error) => return Err(error),
+            }
+        },
+    };
+    return Ok(PoolMaterialization { pool_id, created_pool });
+}
+
+async fn ensure_pair(
+    database: &crate::Database,
+    dex_id: i64,
+    pool_id: i64,
+    base_token_id: i64,
+    quote_token_id: i64,
+    base_mint: &str,
+    quote_mint: &str,
+) -> Result<PairMaterialization, crate::Error> {
+    let existing_pair_result = crate::query_pairs_get_by_pool_id(database, pool_id).await;
+    let existing_pair_option = match existing_pair_result {
+        Ok(existing_pair_option) => existing_pair_option,
+        Err(error) => return Err(error),
+    };
+    let created_pair = existing_pair_option.is_none();
+    let pair_symbol = crate::dex_pool_materialization::build_pair_symbol(base_mint, quote_mint);
+    let pair_id = match existing_pair_option {
+        Some(pair) => match pair.id {
+            Some(pair_id) => pair_id,
+            None => {
+                return Err(crate::Error::InvalidState(format!(
+                    "pair for pool '{}' has no internal id",
+                    pool_id
+                )));
+            },
+        },
+        None => {
+            let pair_dto =
+                crate::PairDto::new(dex_id, pool_id, base_token_id, quote_token_id, pair_symbol);
+            let upsert_result = crate::query_pairs_upsert(database, &pair_dto).await;
+            match upsert_result {
+                Ok(pair_id) => pair_id,
+                Err(error) => return Err(error),
+            }
+        },
+    };
+    return Ok(PairMaterialization { pair_id, created_pair });
+}
+
+async fn ensure_pool_listing(
+    database: &crate::Database,
+    input: &crate::dex_pool_materialization::DexPoolMaterializationInput,
+    pool_id: i64,
+    pair_id: i64,
+) -> Result<ListingMaterialization, crate::Error> {
+    let existing_listing_result =
+        crate::query_pool_listings_get_by_pool_id(database, pool_id).await;
+    let existing_listing_option = match existing_listing_result {
+        Ok(existing_listing_option) => existing_listing_option,
+        Err(error) => return Err(error),
+    };
+    let created_listing = existing_listing_option.is_none();
+    let pool_listing_id = match existing_listing_option {
+        Some(pool_listing) => pool_listing.id,
+        None => {
+            let listing_dto = crate::PoolListingDto::new(
+                input.dex_id,
+                pool_id,
+                Some(pair_id),
+                input.listing_source_kind,
+                input.source_endpoint_name.clone(),
+                None,
+                None,
+                None,
+            );
+            let upsert_result = crate::query_pool_listings_upsert(database, &listing_dto).await;
+            match upsert_result {
+                Ok(listing_id) => Some(listing_id),
+                Err(error) => return Err(error),
+            }
+        },
+    };
+    return Ok(ListingMaterialization { pool_listing_id, created_listing });
+}
+
+async fn ensure_token(database: &crate::Database, mint: &str) -> Result<i64, crate::Error> {
+    let token_result = crate::query_tokens_get_by_mint(database, mint).await;
+    let token_option = match token_result {
+        Ok(token_option) => token_option,
+        Err(error) => return Err(error),
+    };
+    match token_option {
+        Some(token) => match token.id {
+            Some(token_id) => return Ok(token_id),
+            None => {
+                return Err(crate::Error::InvalidState(format!(
+                    "token '{}' has no internal id",
+                    mint
+                )));
+            },
+        },
+        None => {
+            let token_dto = crate::TokenDto::new(
+                mint.to_string(),
+                None,
+                None,
+                None,
+                crate::SPL_TOKEN_PROGRAM_ID.to_string(),
+                crate::dex_pool_materialization::is_quote_mint(mint),
+            );
+            return crate::query_tokens_upsert(database, &token_dto).await;
+        },
+    }
+}
+
+#[derive(Debug, Clone)]
+struct PoolMaterialization {
+    pool_id: i64,
+    created_pool: bool,
+}
+
+#[derive(Debug, Clone)]
+struct PairMaterialization {
+    pair_id: i64,
+    created_pair: bool,
+}
+
+#[derive(Debug, Clone)]
+struct ListingMaterialization {
+    pool_listing_id: std::option::Option<i64>,
+    created_listing: bool,
+}
+
+fn is_quote_mint(mint: &str) -> bool {
+    return mint == crate::WSOL_MINT_ID;
+}
+
+fn choose_base_quote_order(token_a_mint: &str, token_b_mint: &str) -> bool {
+    let token_a_is_quote = crate::dex_pool_materialization::is_quote_mint(token_a_mint);
+    let token_b_is_quote = crate::dex_pool_materialization::is_quote_mint(token_b_mint);
+    if token_a_is_quote && !token_b_is_quote {
+        return false;
+    }
+    if token_b_is_quote && !token_a_is_quote {
+        return true;
+    }
+    return true;
+}
+
+fn build_pair_symbol(
+    base_mint: &str,
+    quote_mint: &str,
+) -> std::option::Option<std::string::String> {
+    let base_symbol = crate::dex_pool_materialization::symbol_hint_from_mint(base_mint);
+    let quote_symbol = crate::dex_pool_materialization::symbol_hint_from_mint(quote_mint);
+    match (base_symbol, quote_symbol) {
+        (Some(base_symbol), Some(quote_symbol)) => {
+            return Some(format!("{base_symbol}/{quote_symbol}"));
+        },
+        _ => return None,
+    }
+}
+
+fn symbol_hint_from_mint(mint: &str) -> std::option::Option<std::string::String> {
+    if mint == crate::WSOL_MINT_ID {
+        return Some("WSOL".to_string());
+    }
+    return None;
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn quote_token_is_moved_to_quote_side_when_order_is_chosen() {
+        let input = crate::dex_pool_materialization::DexPoolMaterializationInput {
+            decoded_event_id: 1,
+            dex_id: 2,
+            pool_address: "Pool111".to_string(),
+            token_a_mint: crate::WSOL_MINT_ID.to_string(),
+            token_b_mint: "TokenB111".to_string(),
+            lp_mint: None,
+            token_a_vault_address: Some("VaultA111".to_string()),
+            token_b_vault_address: Some("VaultB111".to_string()),
+            pool_kind: crate::PoolKind::Amm,
+            pool_status: crate::PoolStatus::Active,
+            token_order:
+                crate::dex_pool_materialization::DexPoolTokenOrder::ChooseBaseQuoteFromTokenAB,
+            listing_source_kind: crate::ObservationSourceKind::Dex,
+            source_endpoint_name: Some("test".to_string()),
+        };
+        let ordered = super::ordered_pool_tokens_from_input(&input);
+        assert_eq!(ordered.base_mint, "TokenB111");
+        assert_eq!(ordered.quote_mint, crate::WSOL_MINT_ID);
+        assert_eq!(ordered.base_vault_address, Some("VaultB111".to_string()));
+        assert_eq!(ordered.quote_vault_address, Some("VaultA111".to_string()));
+    }
+
+    #[test]
+    fn already_base_quote_order_is_preserved() {
+        let input = crate::dex_pool_materialization::DexPoolMaterializationInput {
+            decoded_event_id: 1,
+            dex_id: 2,
+            pool_address: "Pool111".to_string(),
+            token_a_mint: crate::WSOL_MINT_ID.to_string(),
+            token_b_mint: "TokenB111".to_string(),
+            lp_mint: None,
+            token_a_vault_address: Some("BaseVault111".to_string()),
+            token_b_vault_address: Some("QuoteVault111".to_string()),
+            pool_kind: crate::PoolKind::Amm,
+            pool_status: crate::PoolStatus::Active,
+            token_order: crate::dex_pool_materialization::DexPoolTokenOrder::AlreadyBaseQuote,
+            listing_source_kind: crate::ObservationSourceKind::Dex,
+            source_endpoint_name: Some("test".to_string()),
+        };
+        let ordered = super::ordered_pool_tokens_from_input(&input);
+        assert_eq!(ordered.base_mint, crate::WSOL_MINT_ID);
+        assert_eq!(ordered.quote_mint, "TokenB111");
+        assert_eq!(ordered.base_vault_address, Some("BaseVault111".to_string()));
+        assert_eq!(ordered.quote_vault_address, Some("QuoteVault111".to_string()));
+    }
+
+    #[test]
+    fn pair_symbol_is_none_when_only_one_symbol_is_known() {
+        let pair_symbol = super::build_pair_symbol(crate::WSOL_MINT_ID, "TokenB111");
+        assert_eq!(pair_symbol, None);
+    }
+
+    #[test]
+    fn wsol_symbol_hint_is_known() {
+        let symbol = super::symbol_hint_from_mint(crate::WSOL_MINT_ID);
+        assert_eq!(symbol, Some("WSOL".to_string()));
+    }
+}
diff --git a/kb_lib/src/lib.rs b/kb_lib/src/lib.rs
index 9fe9bc4..ebfb38a 100644
--- a/kb_lib/src/lib.rs
+++ b/kb_lib/src/lib.rs
@@ -23,10 +23,22 @@ mod db;
 mod detect;
 /// DEX-specific transaction decoders.
 mod dex;
+/// Internal known DEX catalog.
+mod dex_catalog;
 /// Persistence-oriented DEX decoding service.
 mod dex_decode;
+/// Transaction context loading for DEX decoding.
+mod dex_decode_context;
+/// Decoded DEX event materialization helpers.
+mod dex_decoded_event_materialization;
 /// Business-level detection built from decoded DEX events.
 mod dex_detect;
+/// Decoded DEX event to business-detection routing.
+mod dex_detection_route;
+/// Shared DEX event classification and decoded-payload enrichment helpers.
+mod dex_event_classification;
+/// Shared DEX pool materialization helpers.
+mod dex_pool_materialization;
 /// Shared error type for `kb_lib`.
 mod error;
 /// Generic asynchronous HTTP JSON-RPC client.
@@ -55,6 +67,8 @@ mod pair_candle_query;
 mod pair_symbol;
 /// Cross-DEX pool-origin recording service.
 mod pool_origin;
+/// Protocol candidate recording.
+mod protocol_candidate_recording;
 /// Typed Solana WebSocket PubSub helpers built on top of the generic JSON-RPC transport.
 mod solana_pubsub_ws;
 /// Historical token backfill service.
@@ -65,6 +79,22 @@ mod token_metadata;
 mod tracing;
 /// Cross-DEX trade aggregation service.
 mod trade_aggregation;
+/// Database context loading for trade aggregation.
+mod trade_aggregation_context;
+/// Trade amount resolution orchestration.
+mod trade_amount_resolution;
+/// Trade-event materialization.
+mod trade_event_materialization;
+/// Trade metric update and pricing helpers.
+mod trade_metric_update;
+/// PumpSwap trade amount recovery helpers.
+mod trade_pump_swap_amounts;
+/// Trade-side resolution helpers.
+mod trade_side_resolution;
+/// Solana transaction/meta trade amount extraction helpers.
+mod trade_solana_amounts;
+/// Transaction classification service.
+mod transaction_classification;
 /// Projection of resolved transactions into normalized internal DB tables.
 mod tx_model;
 /// Transaction resolution pipeline.
@@ -104,46 +134,143 @@ pub use config::SolanaConfig;
 pub use config::SqliteDatabaseConfig;
 /// WebSocket endpoint configuration.
 pub use config::WsEndpointConfig;
+/// Address Lookup Table program identifier. ("AddressLookupTab1e1111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey =  solana_sdk_ids::address_lookup_table::ID
+pub use constants::ADDRESS_LOOKUP_TABLE_PROGRAM_ID;
+/// Arbitrage Bot (6MWVT) / Arbitrage or Sandwich Bot. ("6MWVTis8rmmk6Vt9zmAJJbmb3VuLpzoQ1aHH4N6wQEGh").
+pub use constants::ARBITRAGE_BOT_6MWVT_PROGRAM_ID;
 /// Associated Token Account program identifier. ("ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL").
 /// @see solana_sdk::pubkey::Pubkey = spl_associated_token_account_interface::program::ID
 pub use constants::ASSOCIATED_TOKEN_PROGRAM_ID;
+/// BPF Loader program identifier. ("BPFLoader1111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey =  solana_sdk_ids::bpf_loader_deprecated::ID
+pub use constants::BPF_LOADER_DEPRECATED_PROGRAM_ID;
+/// BPF Loader program identifier. ("BPFLoaderUpgradeab1e11111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey =  solana_sdk_ids::bpf_loader_upgradeable::ID
+pub use constants::BPF_LOADER_UPGRADEABLE_PROGRAM_ID;
 /// Compute Budget program identifier. ("ComputeBudget111111111111111111111111111111").
-/// @see solana_sdk_ids::compute_budget::ID
+/// @see solana_sdk::pubkey::Pubkey =  solana_sdk_ids::compute_budget::ID
 pub use constants::COMPUTE_BUDGET_PROGRAM_ID;
+/// Config program identifier. ("Config1111111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey =  solana_sdk_ids::config::ID
+pub use constants::CONFIG_PROGRAM_ID;
 /// DexLab Swap/Pool program id. ("DSwpgjMvXhtGn6BsbqmacdBZyfLj6jSWf3HJpdJtmg6N").
 pub use constants::DEXLAB_PROGRAM_ID;
+/// ED25519 program identifier. ("Ed25519SigVerify111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey =  solana_sdk_ids::ed25519_program::ID
+pub use constants::ED25519_PROGRAM_ID;
+/// Feature program identifier. ("Feature111111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey =  solana_sdk_ids::feature::ID
+pub use constants::FEATURE_PROGRAM_ID;
 /// FluxBeam program id. ("FLUXubRmkEi2q6K3Y9kBPg9248ggaZVsoSFhtJHSrm1X").
 pub use constants::FLUXBEAM_PROGRAM_ID;
+/// Incinerator program identifier. ("1nc1nerator11111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::incinerator::ID
+pub use constants::INCINERATOR_PROGRAM_ID;
+/// Loader V4 program identifier. ("LoaderV411111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::loader_v4::ID
+pub use constants::LOADER_V4_PROGRAM_ID;
 /// Meteora DAMM v1 program id. ("Eo7WjKq67rjJQSZxS6z3YkapzY3eMj6Xy8X5EQVn5UaB").
 pub use constants::METEORA_DAMM_V1_PROGRAM_ID;
 /// Meteora DAMM v2 program id. ("cpamdpZCGKUy5JxQXB4dcpGPiikHawvSWAd6mEn1sGG").
 pub use constants::METEORA_DAMM_V2_PROGRAM_ID;
 /// Meteora DBC program id. ("dbcij3LWUppWqq96dh6gJWwBifmcGfLSB5D4DuSMaqN").
 pub use constants::METEORA_DBC_PROGRAM_ID;
+/// Meteora DLMM program id. ("LBUZKhRxPF3XUpBCjp4YzTKgLccjZhTSDM9YuVaPwxo").
+pub use constants::METEORA_DLMM_PROGRAM_ID;
+/// Native Loader program identifier. ("NativeLoader1111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::native_loader::ID
+pub use constants::NATIVE_LOADER_PROGRAM_ID;
 /// Orca Whirlpools program id. ("whirLbMiicVdio4qvUfM5KAg6Ct8VwpYzGff3uctyCc").
 pub use constants::ORCA_WHIRLPOOLS_PROGRAM_ID;
 /// Pump.fun program id. ("6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P").
 pub use constants::PUMP_FUN_PROGRAM_ID;
 /// PumpSwap / PumpAMM program id. ("pAMMBay6oceH9fJKBRHGP5D4bD4sWpmSwMn52FMfXEA").
 pub use constants::PUMP_SWAP_PROGRAM_ID;
+/// Raydium AMM routing program id. ("routeUGWgWzqBWFcrCfv8tritsqukccJPu3q5GPP3xS").
+pub use constants::RAYDIUM_AMM_ROUTING_PROGRAM_ID;
 /// Raydium AmmV4 program id. ("675kPX9MHTjS2zt1qfr1NYHuzeLXfQM9H24wFSUt1Mp8").
 pub use constants::RAYDIUM_AMM_V4_PROGRAM_ID;
 /// Raydium CLMM program id. ("CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7grrKgrWqK").
 pub use constants::RAYDIUM_CLMM_PROGRAM_ID;
 /// Raydium CPMM mainnet program id. ("CPMMoo8L3F4NbTegBCKVNunggL7H1ZpdTHKxQB5qKP1C").
 pub use constants::RAYDIUM_CPMM_PROGRAM_ID;
+/// Raydium LaunchLab program id. ("LanMV9sAd7wArD4vJFi2qDdfnVhFxYSUg6eADduJ3uj").
+pub use constants::RAYDIUM_LAUNCHLAB_PROGRAM_ID;
+/// Raydium Stable Swap AMM program id, deprecated. ("5quBtoiQqxF9Jv6KYKctB59NT3gtJD2Y65kdnB1Uev3h").
+pub use constants::RAYDIUM_STABLE_SWAP_AMM_PROGRAM_ID;
+/// Secp256k1 program identifier. ("KeccakSecp256k11111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::secp256k1_program::ID
+pub use constants::SECP256K1_PROGRAM_ID;
+/// Secp256r1 program identifier. ("Secp256r1SigVerify1111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::secp256r1_program::ID
+pub use constants::SECP256R1_PROGRAM_ID;
 /// SPL Token-2022 program identifier. ("TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb").
 /// @see solana_sdk::pubkey::Pubkey = spl_token_2022_interface::ID
 pub use constants::SPL_TOKEN_2022_PROGRAM_ID;
 /// SPL Token program identifier. ("TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA").
 /// @see solana_sdk::pubkey::Pubkey = spl_token_interface::ID
 pub use constants::SPL_TOKEN_PROGRAM_ID;
+/// Stake Config program identifier. ("StakeConfig11111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::stake::config::ID
+pub use constants::STAKE_CONFIG_PROGRAM_ID;
+/// Stake program identifier. ("Stake11111111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::stake::ID
+pub use constants::STAKE_PROGRAM_ID;
 /// System program identifier. ("11111111111111111111111111111111").
 /// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::system_program::ID
 pub use constants::SYSTEM_PROGRAM_ID;
+/// Sysvar Clock program identifier. ("SysvarC1ock11111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::clock::ID
+pub use constants::SYSVAR_CLOCK_PROGRAM_ID;
+/// Sysvar Epoch Rewards program identifier. ("SysvarEpochRewards1111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::epoch_rewards::ID
+pub use constants::SYSVAR_EPOCH_REWARDS_PROGRAM_ID;
+/// Sysvar Epoch Schedule program identifier. ("SysvarEpochSchedu1e111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::epoch_schedule::ID
+pub use constants::SYSVAR_EPOCH_SCHEDULE_PROGRAM_ID;
+/// Sysvar Fees program identifier. ("SysvarFees111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::fees::ID
+pub use constants::SYSVAR_FEES_PROGRAM_ID;
+/// Sysvar Instructions program identifier. ("Sysvar1nstructions1111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::instructions::ID
+pub use constants::SYSVAR_INSTRUCTIONS_PROGRAM_ID;
+/// Sysvar Last Restart Slot program identifier. ("SysvarLastRestartS1ot1111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::last_restart_slot::ID
+pub use constants::SYSVAR_LAST_RESTART_SLOT_PROGRAM_ID;
+/// Sysvar program identifier. ("Sysvar1111111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::ID
+pub use constants::SYSVAR_PROGRAM_ID;
+/// Sysvar Recent Blockhashes program identifier. ("SysvarRecentB1ockHashes11111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::recent_blockhashes::ID
+pub use constants::SYSVAR_RECENT_BLOCKHASHES_PROGRAM_ID;
+/// Sysvar Rent program identifier. ("SysvarRent111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::rent::ID
+pub use constants::SYSVAR_RENT_PROGRAM_ID;
+/// Sysvar Rewards program identifier. ("SysvarRewards111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::rewards::ID
+pub use constants::SYSVAR_REWARDS_PROGRAM_ID;
+/// Sysvar Slot Hashes program identifier. ("SysvarS1otHashes111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::slot_hashes::ID
+pub use constants::SYSVAR_SLOT_HASHES_PROGRAM_ID;
+/// Sysvar Slot History program identifier. ("SysvarS1otHistory11111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::slot_history::ID
+pub use constants::SYSVAR_SLOT_HISTORY_PROGRAM_ID;
+/// Sysvar Stake History program identifier. ("SysvarStakeHistory1111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::sysvar::stake_history::ID
+pub use constants::SYSVAR_STAKE_HISTORY_PROGRAM_ID;
+/// Vote program identifier. ("Vote111111111111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::vote::ID
+pub use constants::VOTE_PROGRAM_ID;
 /// Wrapped SOL mint identifier. ("So11111111111111111111111111111111111111112").
 /// @see solana_sdk::pubkey::Pubkey = spl_token_interface::native_mint::ID
 pub use constants::WSOL_MINT_ID;
+/// Zk El Gamal Proof program identifier. ("ZkE1Gama1Proof11111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::zk_elgamal_proof_program::ID
+pub use constants::ZK_ELGAMAL_PROOF_PROGRAM_ID;
+/// Zk Token Proof program identifier. ("ZkTokenProof1111111111111111111111111111111").
+/// @see solana_sdk::pubkey::Pubkey = solana_sdk_ids::zk_token_proof_program::ID
+pub use constants::ZK_TOKEN_PROOF_PROGRAM_ID;
 /// Application-facing analysis signal DTO.
 pub use db::AnalysisSignalDto;
 /// Persisted analysis signal row.
@@ -284,6 +411,18 @@ pub use db::PoolTokenDto;
 pub use db::PoolTokenEntity;
 /// Role of one token inside a normalized pool.
 pub use db::PoolTokenRole;
+/// Application-facing protocol candidate DTO.
+///
+/// A protocol candidate records a program/instruction that should be inspected
+/// later because it may correspond to an unsupported DEX, launch surface,
+/// migration path or protocol-specific non-trade event.
+pub use db::ProtocolCandidateDto;
+/// Persisted protocol candidate row.
+pub use db::ProtocolCandidateEntity;
+/// Aggregated protocol candidate diagnostic row.
+pub use db::ProtocolCandidateSummaryDto;
+/// Aggregated protocol candidate diagnostic row.
+pub use db::ProtocolCandidateSummaryEntity;
 /// Application-facing normalized swap DTO.
 pub use db::SwapDto;
 /// Persisted normalized swap row.
@@ -306,6 +445,10 @@ pub use db::TokenMintEventEntity;
 pub use db::TradeEventDto;
 /// Persisted trade-event row.
 pub use db::TradeEventEntity;
+/// Application-facing transaction classification DTO.
+pub use db::TransactionClassificationDto;
+/// Persisted transaction classification row.
+pub use db::TransactionClassificationEntity;
 /// Application-facing wallet DTO.
 pub use db::WalletDto;
 /// Persisted wallet row.
@@ -482,6 +625,20 @@ pub use db::query_pools_get_by_address;
 pub use db::query_pools_list;
 /// Inserts or updates one normalized pool row by address.
 pub use db::query_pools_upsert;
+/// Lists protocol candidate summaries ordered by investigation priority.
+pub use db::query_protocol_candidate_summaries_list_by_priority;
+/// Deletes protocol candidates for one transaction.
+///
+/// This is useful before recomputing candidates for a replayed transaction.
+pub use db::query_protocol_candidates_delete_by_transaction_id;
+/// Inserts one protocol candidate row.
+pub use db::query_protocol_candidates_insert;
+/// Lists protocol candidates for one program id.
+pub use db::query_protocol_candidates_list_by_program_id;
+/// Lists protocol candidates for one transaction.
+pub use db::query_protocol_candidates_list_by_transaction_id;
+/// Lists recent protocol candidates ordered from newest to oldest.
+pub use db::query_protocol_candidates_list_recent;
 /// Lists recent swaps ordered from newest to oldest.
 pub use db::query_swaps_list_recent;
 /// Inserts or updates one normalized swap row.
@@ -512,6 +669,14 @@ pub use db::query_trade_events_list_by_pair_id;
 pub use db::query_trade_events_list_by_transaction_id;
 /// Inserts or updates one trade-event row and returns its stable internal id.
 pub use db::query_trade_events_upsert;
+/// Reads one transaction classification by signature.
+pub use db::query_transaction_classifications_get_by_signature;
+/// Reads one transaction classification by transaction id.
+pub use db::query_transaction_classifications_get_by_transaction_id;
+/// Lists recent transaction classifications ordered from newest to oldest.
+pub use db::query_transaction_classifications_list_recent;
+/// Inserts or updates one transaction classification row.
+pub use db::query_transaction_classifications_upsert;
 /// Returns one wallet-holding row identified by `(wallet_id, token_id)`, if it exists.
 pub use db::query_wallet_holdings_get_by_wallet_and_token;
 /// Lists wallet-holding rows for one wallet id.
@@ -644,6 +809,36 @@ pub use dex_decode::DexDecodeService;
 pub use dex_detect::DexDetectService;
 /// Result of one business-level DEX pool detection.
 pub use dex_detect::DexPoolDetectionResult;
+/// Stable DEX event business category.
+pub use dex_event_classification::DexEventCategory;
+/// Classifies a DEX event kind into a stable category.
+pub use dex_event_classification::classify_dex_event_category;
+/// Classifies a DEX event kind and returns its persisted category code.
+pub use dex_event_classification::classify_dex_event_category_code;
+/// Enriches and serializes a decoded DEX payload.
+pub use dex_event_classification::enrich_and_serialize_dex_decoded_payload;
+/// Enriches a decoded DEX payload with classification metadata.
+pub use dex_event_classification::enrich_dex_decoded_payload;
+/// Parses, enriches and serializes a decoded DEX payload.
+pub use dex_event_classification::enrich_serialized_dex_decoded_payload;
+/// Returns true when a decoded payload is a candle candidate.
+pub use dex_event_classification::is_decoded_event_candle_candidate;
+/// Returns true when a decoded payload is a trade candidate.
+pub use dex_event_classification::is_decoded_event_trade_candidate;
+/// Returns true for admin/config/permission DEX events.
+pub use dex_event_classification::is_dex_admin_event_kind;
+/// Returns true when a DEX event kind can directly feed candle materialization.
+pub use dex_event_classification::is_dex_candle_candidate_event_kind;
+/// Returns true for fee collection DEX events.
+pub use dex_event_classification::is_dex_fee_event_kind;
+/// Returns true for liquidity lifecycle DEX events.
+pub use dex_event_classification::is_dex_liquidity_event_kind;
+/// Returns true for pool lifecycle DEX events.
+pub use dex_event_classification::is_dex_pool_lifecycle_event_kind;
+/// Returns true for reward or emission DEX events.
+pub use dex_event_classification::is_dex_reward_event_kind;
+/// Returns true for swap-like DEX events.
+pub use dex_event_classification::is_dex_trade_event_kind;
 /// Global error type used by the `kb_lib` crate.
 ///
 /// The project intentionally avoids `anyhow` and `thiserror`, so this
@@ -793,6 +988,8 @@ pub use tracing::init_tracing;
 pub use trade_aggregation::TradeAggregationResult;
 /// Trade-aggregation service.
 pub use trade_aggregation::TradeAggregationService;
+/// Service used to classify projected Solana transactions.
+pub use transaction_classification::TransactionClassificationService;
 /// Service projecting resolved transaction JSON into internal chain tables.
 pub use tx_model::TransactionModelService;
 /// Result of one transaction resolution pass.
diff --git a/kb_lib/src/local_pipeline_replay.rs b/kb_lib/src/local_pipeline_replay.rs
index a78d73a..80cfbd1 100644
--- a/kb_lib/src/local_pipeline_replay.rs
+++ b/kb_lib/src/local_pipeline_replay.rs
@@ -63,6 +63,10 @@ pub struct LocalPipelineReplayResult {
     /// This is a replay write/result counter, not the number of distinct rows
     /// currently persisted in the analytic signal table.
     pub analytic_signal_upsert_count: usize,
+    /// Total transaction classification rows upserted during replay.
+    pub transaction_classification_count: usize,
+    /// Number of transactions that produced a classification error.
+    pub transaction_classification_error_count: usize,
     /// Number of token metadata rows updated after replay.
     pub token_metadata_updated_count: usize,
     /// Number of pair symbols updated after replay.
@@ -122,6 +126,8 @@ impl LocalPipelineReplayService {
         let pair_candle_aggregation =
             crate::PairCandleAggregationService::new(self.database.clone());
         let pair_analytic_signal = crate::PairAnalyticSignalService::new(self.database.clone());
+        let transaction_classification =
+            crate::TransactionClassificationService::new(self.database.clone());
         let mut result = LocalPipelineReplayResult {
             selected_transaction_count: signatures.len(),
             ..Default::default()
@@ -209,6 +215,22 @@ impl LocalPipelineReplayService {
                     );
                 },
             }
+            let classification_result = transaction_classification
+                .classify_transaction_by_signature(signature.as_str())
+                .await;
+            match classification_result {
+                Ok(_) => {
+                    result.transaction_classification_count += 1;
+                },
+                Err(error) => {
+                    result.transaction_classification_error_count += 1;
+                    tracing::warn!(
+                        signature = %signature,
+                        error = %error,
+                        "local pipeline replay transaction classification step failed"
+                    );
+                },
+            }
             result.replayed_transaction_count += 1;
         }
         if config.refresh_missing_token_metadata {
diff --git a/kb_lib/src/protocol_candidate_recording.rs b/kb_lib/src/protocol_candidate_recording.rs
new file mode 100644
index 0000000..67d4777
--- /dev/null
+++ b/kb_lib/src/protocol_candidate_recording.rs
@@ -0,0 +1,530 @@
+// file: kb_lib/src/protocol_candidate_recording.rs
+
+//! Protocol candidate recording.
+//!
+//! This module records candidate protocol/program instructions for transactions
+//! that were not fully decoded by the current DEX decoders.
+
+/// Input used to record protocol candidates for one classified transaction.
+pub(crate) struct ProtocolCandidateRecordingInput<'a> {
+    /// Database connection.
+    pub(crate) database: &'a crate::Database,
+    /// Persisted transaction.
+    pub(crate) transaction: &'a crate::ChainTransactionDto,
+    /// Internal transaction id.
+    pub(crate) transaction_id: i64,
+    /// Projected instructions for the transaction.
+    pub(crate) instructions: &'a [crate::ChainInstructionDto],
+    /// Persisted classification kind.
+    pub(crate) classification_kind: &'a str,
+}
+
+/// Records protocol candidates for one classified transaction.
+///
+/// Existing candidates for the same transaction are deleted first so replay is
+/// deterministic.
+pub(crate) async fn record_protocol_candidates_for_classification(
+    input: crate::protocol_candidate_recording::ProtocolCandidateRecordingInput<'_>,
+) -> Result<usize, crate::Error> {
+    let delete_result = crate::query_protocol_candidates_delete_by_transaction_id(
+        input.database,
+        input.transaction_id,
+    )
+    .await;
+    if let Err(error) = delete_result {
+        return Err(error);
+    }
+    let candidate_specs =
+        crate::protocol_candidate_recording::build_protocol_candidate_specs_for_classification(
+            input.transaction,
+            input.transaction_id,
+            input.instructions,
+            input.classification_kind,
+        );
+    let mut inserted_count = 0_usize;
+    for candidate_spec in candidate_specs {
+        let dto = crate::ProtocolCandidateDto::new(
+            input.transaction_id,
+            candidate_spec.instruction_id,
+            input.transaction.signature.clone(),
+            input.transaction.slot,
+            candidate_spec.program_id,
+            candidate_spec.program_name_hint,
+            candidate_spec.candidate_protocol,
+            candidate_spec.candidate_surface,
+            candidate_spec.reason,
+            candidate_spec.evidence_json,
+        );
+        let insert_result = crate::query_protocol_candidates_insert(input.database, &dto).await;
+        match insert_result {
+            Ok(_) => {
+                inserted_count += 1;
+            },
+            Err(error) => return Err(error),
+        }
+    }
+    return Ok(inserted_count);
+}
+
+struct ProtocolCandidateSpec {
+    instruction_id: std::option::Option<i64>,
+    program_id: std::string::String,
+    program_name_hint: std::option::Option<std::string::String>,
+    candidate_protocol: std::option::Option<std::string::String>,
+    candidate_surface: std::option::Option<std::string::String>,
+    reason: std::string::String,
+    evidence_json: std::string::String,
+}
+
+fn build_protocol_candidate_specs_for_classification(
+    transaction: &crate::ChainTransactionDto,
+    transaction_id: i64,
+    instructions: &[crate::ChainInstructionDto],
+    classification_kind: &str,
+) -> std::vec::Vec<ProtocolCandidateSpec> {
+    if classification_kind == "known_dex_program_unclassified" {
+        return build_known_dex_program_candidate_specs(transaction, transaction_id, instructions);
+    }
+    if classification_kind == "unknown_or_unclassified" {
+        return build_unknown_program_candidate_specs(transaction, transaction_id, instructions);
+    }
+    return std::vec::Vec::new();
+}
+
+fn build_known_dex_program_candidate_specs(
+    transaction: &crate::ChainTransactionDto,
+    transaction_id: i64,
+    instructions: &[crate::ChainInstructionDto],
+) -> std::vec::Vec<ProtocolCandidateSpec> {
+    let mut specs = std::vec::Vec::new();
+    for instruction in instructions {
+        let program_id = match instruction.program_id.clone() {
+            Some(program_id) => program_id,
+            None => continue,
+        };
+        let known_protocol = known_dex_protocol_name(program_id.as_str());
+        let known_protocol = match known_protocol {
+            Some(known_protocol) => known_protocol,
+            None => continue,
+        };
+        let evidence_json = build_instruction_evidence_json(
+            transaction,
+            transaction_id,
+            instruction,
+            "known_dex_program_without_decoded_event",
+        );
+        specs.push(ProtocolCandidateSpec {
+            instruction_id: instruction.id,
+            program_id,
+            program_name_hint: instruction.program_name.clone(),
+            candidate_protocol: Some(known_protocol.to_string()),
+            candidate_surface: None,
+            reason: "known DEX program instruction did not produce a decoded DEX event".to_string(),
+            evidence_json,
+        });
+    }
+    return specs;
+}
+
+fn build_unknown_program_candidate_specs(
+    transaction: &crate::ChainTransactionDto,
+    transaction_id: i64,
+    instructions: &[crate::ChainInstructionDto],
+) -> std::vec::Vec<ProtocolCandidateSpec> {
+    let mut specs = std::vec::Vec::new();
+    for instruction in instructions {
+        let program_id = match instruction.program_id.clone() {
+            Some(program_id) => program_id,
+            None => continue,
+        };
+        if should_ignore_program_id(program_id.as_str()) {
+            continue;
+        }
+        let surface_hint = infer_candidate_surface(program_id.as_str(), instruction);
+        let evidence_json = build_instruction_evidence_json(
+            transaction,
+            transaction_id,
+            instruction,
+            "unknown_or_unclassified_program_instruction",
+        );
+        specs.push(ProtocolCandidateSpec {
+            instruction_id: instruction.id,
+            program_id,
+            program_name_hint: instruction.program_name.clone(),
+            candidate_protocol: None,
+            candidate_surface: surface_hint,
+            reason: "transaction has no decoded DEX event and includes a non-ignored program instruction".to_string(),
+            evidence_json,
+        });
+    }
+    return specs;
+}
+
+fn build_instruction_evidence_json(
+    transaction: &crate::ChainTransactionDto,
+    transaction_id: i64,
+    instruction: &crate::ChainInstructionDto,
+    reason_code: &str,
+) -> std::string::String {
+    let evidence_value = serde_json::json!({
+        "reasonCode": reason_code,
+        "transactionId": transaction_id,
+        "signature": transaction.signature,
+        "slot": transaction.slot,
+        "instructionId": instruction.id,
+        "parentInstructionId": instruction.parent_instruction_id,
+        "instructionIndex": instruction.instruction_index,
+        "programId": instruction.program_id,
+        "programName": instruction.program_name,
+        "stackHeight": instruction.stack_height,
+        "parsedType": instruction.parsed_type
+    });
+    let evidence_json_result = serde_json::to_string(&evidence_value);
+    match evidence_json_result {
+        Ok(evidence_json) => return evidence_json,
+        Err(error) => {
+            return format!(
+                "{{\"reasonCode\":\"evidence_serialization_failed\",\"error\":\"{}\"}}",
+                error
+            );
+        },
+    }
+}
+
+fn known_dex_protocol_name(program_id: &str) -> std::option::Option<&'static str> {
+    if program_id == crate::RAYDIUM_AMM_V4_PROGRAM_ID {
+        return Some("raydium_amm_v4");
+    }
+    if program_id == crate::RAYDIUM_CPMM_PROGRAM_ID {
+        return Some("raydium_cpmm");
+    }
+    if program_id == crate::RAYDIUM_CLMM_PROGRAM_ID {
+        return Some("raydium_clmm");
+    }
+    if program_id == crate::RAYDIUM_LAUNCHLAB_PROGRAM_ID {
+        return Some("raydium_launchlab");
+    }
+    if program_id == crate::RAYDIUM_AMM_ROUTING_PROGRAM_ID {
+        return Some("raydium_router");
+    }
+    if program_id == crate::RAYDIUM_STABLE_SWAP_AMM_PROGRAM_ID {
+        return Some("raydium_stable_swap");
+    }
+    if program_id == crate::PUMP_FUN_PROGRAM_ID {
+        return Some("pump_fun");
+    }
+    if program_id == crate::PUMP_SWAP_PROGRAM_ID {
+        return Some("pump_swap");
+    }
+    if program_id == crate::METEORA_DBC_PROGRAM_ID {
+        return Some("meteora_dbc");
+    }
+    if program_id == crate::METEORA_DLMM_PROGRAM_ID {
+        return Some("meteora_dlmm");
+    }
+    if program_id == crate::METEORA_DAMM_V1_PROGRAM_ID {
+        return Some("meteora_damm_v1");
+    }
+    if program_id == crate::METEORA_DAMM_V2_PROGRAM_ID {
+        return Some("meteora_damm_v2");
+    }
+    if program_id == crate::ORCA_WHIRLPOOLS_PROGRAM_ID {
+        return Some("orca_whirlpools");
+    }
+    if program_id == crate::FLUXBEAM_PROGRAM_ID {
+        return Some("fluxbeam");
+    }
+    if program_id == crate::DEXLAB_PROGRAM_ID {
+        return Some("dexlab");
+    }
+    return None;
+}
+
+fn should_ignore_program_id(program_id: &str) -> bool {
+    if program_id == crate::SYSTEM_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SPL_TOKEN_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SPL_TOKEN_2022_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::ASSOCIATED_TOKEN_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::COMPUTE_BUDGET_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::ADDRESS_LOOKUP_TABLE_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::BPF_LOADER_DEPRECATED_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::BPF_LOADER_UPGRADEABLE_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::LOADER_V4_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::NATIVE_LOADER_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::CONFIG_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::VOTE_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::STAKE_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::STAKE_CONFIG_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::ED25519_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SECP256K1_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SECP256R1_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::ZK_TOKEN_PROOF_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::ZK_ELGAMAL_PROOF_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_CLOCK_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_RENT_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_INSTRUCTIONS_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_EPOCH_REWARDS_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_EPOCH_SCHEDULE_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_FEES_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_LAST_RESTART_SLOT_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_RECENT_BLOCKHASHES_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_REWARDS_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_SLOT_HASHES_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_SLOT_HISTORY_PROGRAM_ID {
+        return true;
+    }
+    if program_id == crate::SYSVAR_STAKE_HISTORY_PROGRAM_ID {
+        return true;
+    }
+    return false;
+}
+
+fn infer_candidate_surface(
+    program_id: &str,
+    instruction: &crate::ChainInstructionDto,
+) -> std::option::Option<std::string::String> {
+    if program_id == crate::ARBITRAGE_BOT_6MWVT_PROGRAM_ID {
+        return Some("arbitrage_bot".to_string());
+    }
+    if is_known_launch_surface_program_id(program_id) {
+        return Some("launch_surface".to_string());
+    }
+    if let Some(program_name) = instruction.program_name.as_deref() {
+        let normalized = program_name.to_ascii_lowercase();
+        if normalized.contains("arbitrage") {
+            return Some("arbitrage_bot".to_string());
+        }
+        if normalized.contains("sandwich") {
+            return Some("arbitrage_bot".to_string());
+        }
+        if normalized.contains("launch") {
+            return Some("launch_surface".to_string());
+        }
+        if normalized.contains("meteora") {
+            return Some("meteora_related".to_string());
+        }
+        if normalized.contains("raydium") {
+            return Some("raydium_related".to_string());
+        }
+        if normalized.contains("pump") {
+            return Some("pump_related".to_string());
+        }
+        if normalized.contains("swap") {
+            return Some("swap_related".to_string());
+        }
+    }
+    return None;
+}
+
+fn is_known_launch_surface_program_id(_program_id: &str) -> bool {
+    // Filled in later after program ids are verified from live corpus and
+    // official or sufficiently reliable references.
+    return false;
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn associated_token_program_is_ignored() {
+        let transaction = test_transaction();
+        let instructions = vec![test_instruction(
+            0,
+            Some(crate::ASSOCIATED_TOKEN_PROGRAM_ID.to_string()),
+            Some("spl-associated-token-account".to_string()),
+        )];
+        let specs = super::build_protocol_candidate_specs_for_classification(
+            &transaction,
+            1,
+            &instructions,
+            "unknown_or_unclassified",
+        );
+        assert_eq!(specs.len(), 0);
+    }
+
+    #[test]
+    fn meteora_dlmm_is_known_dex_protocol() {
+        let transaction = test_transaction();
+        let instructions = vec![test_instruction(
+            0,
+            Some(crate::METEORA_DLMM_PROGRAM_ID.to_string()),
+            Some("Meteora DLMM".to_string()),
+        )];
+        let specs = super::build_protocol_candidate_specs_for_classification(
+            &transaction,
+            1,
+            &instructions,
+            "known_dex_program_unclassified",
+        );
+        assert_eq!(specs.len(), 1);
+        assert_eq!(specs[0].program_id, crate::METEORA_DLMM_PROGRAM_ID);
+        assert_eq!(specs[0].candidate_protocol, Some("meteora_dlmm".to_string()));
+    }
+
+    #[test]
+    fn known_arbitrage_bot_gets_surface_hint() {
+        let transaction = test_transaction();
+        let instructions = vec![test_instruction(
+            0,
+            Some(crate::ARBITRAGE_BOT_6MWVT_PROGRAM_ID.to_string()),
+            None,
+        )];
+        let specs = super::build_protocol_candidate_specs_for_classification(
+            &transaction,
+            1,
+            &instructions,
+            "unknown_or_unclassified",
+        );
+        assert_eq!(specs.len(), 1);
+        assert_eq!(specs[0].candidate_surface, Some("arbitrage_bot".to_string()));
+    }
+
+    fn test_instruction(
+        instruction_index: u32,
+        program_id: std::option::Option<std::string::String>,
+        program_name: std::option::Option<std::string::String>,
+    ) -> crate::ChainInstructionDto {
+        return crate::ChainInstructionDto::new(
+            1,
+            None,
+            instruction_index,
+            None,
+            program_id,
+            program_name,
+            None,
+            "[]".to_string(),
+            None,
+            None,
+            Some(serde_json::json!({}).to_string()),
+        );
+    }
+
+    fn test_transaction() -> crate::ChainTransactionDto {
+        let mut transaction = crate::ChainTransactionDto::new(
+            "signature_1".to_string(),
+            Some(123),
+            None,
+            Some("test".to_string()),
+            None,
+            None,
+            None,
+            serde_json::json!({}).to_string(),
+        );
+        transaction.id = Some(1);
+        return transaction;
+    }
+
+    #[test]
+    fn known_dex_candidate_is_built_for_unclassified_known_program() {
+        let transaction = test_transaction();
+        let instructions = vec![test_instruction(
+            0,
+            Some(crate::METEORA_DAMM_V2_PROGRAM_ID.to_string()),
+            Some("Meteora".to_string()),
+        )];
+        let specs = super::build_protocol_candidate_specs_for_classification(
+            &transaction,
+            1,
+            &instructions,
+            "known_dex_program_unclassified",
+        );
+        assert_eq!(specs.len(), 1);
+        assert_eq!(specs[0].program_id, crate::METEORA_DAMM_V2_PROGRAM_ID);
+        assert_eq!(specs[0].candidate_protocol, Some("meteora_damm_v2".to_string()));
+    }
+
+    #[test]
+    fn ignored_program_is_not_recorded_as_unknown_candidate() {
+        let transaction = test_transaction();
+        let instructions = vec![test_instruction(
+            0,
+            Some(crate::SPL_TOKEN_PROGRAM_ID.to_string()),
+            Some("spl-token".to_string()),
+        )];
+        let specs = super::build_protocol_candidate_specs_for_classification(
+            &transaction,
+            1,
+            &instructions,
+            "unknown_or_unclassified",
+        );
+        assert_eq!(specs.len(), 0);
+    }
+
+    #[test]
+    fn unknown_non_ignored_program_is_recorded() {
+        let transaction = test_transaction();
+        let instructions = vec![test_instruction(
+            0,
+            Some("UnknownProgram111111111111111111111111111111111".to_string()),
+            Some("unknown swap program".to_string()),
+        )];
+        let specs = super::build_protocol_candidate_specs_for_classification(
+            &transaction,
+            1,
+            &instructions,
+            "unknown_or_unclassified",
+        );
+        assert_eq!(specs.len(), 1);
+        assert_eq!(specs[0].candidate_surface, Some("swap_related".to_string()));
+    }
+}
diff --git a/kb_lib/src/token_backfill.rs b/kb_lib/src/token_backfill.rs
index 8429b2e..a0faea6 100644
--- a/kb_lib/src/token_backfill.rs
+++ b/kb_lib/src/token_backfill.rs
@@ -82,6 +82,7 @@ pub struct TokenBackfillService {
     wallet_observation_service: crate::WalletObservationService,
     trade_aggregation_service: crate::TradeAggregationService,
     pair_candle_aggregation_service: crate::PairCandleAggregationService,
+    transaction_classification_service: crate::TransactionClassificationService,
     token_metadata_service: crate::TokenMetadataBackfillService,
 }
 
@@ -102,6 +103,8 @@ impl TokenBackfillService {
         let trade_aggregation_service = crate::TradeAggregationService::new(database.clone());
         let pair_candle_aggregation_service =
             crate::PairCandleAggregationService::new(database.clone());
+        let transaction_classification_service =
+            crate::TransactionClassificationService::new(database.clone());
         let token_metadata_service = crate::TokenMetadataBackfillService::new(
             http_pool.clone(),
             database.clone(),
@@ -120,6 +123,7 @@ impl TokenBackfillService {
             wallet_observation_service,
             trade_aggregation_service,
             pair_candle_aggregation_service,
+            transaction_classification_service,
             token_metadata_service,
         };
     }
@@ -436,6 +440,13 @@ impl TokenBackfillService {
             Ok(pair_candle_aggregations) => pair_candle_aggregations,
             Err(error) => return Err(error),
         };
+        let transaction_classification_result = self
+            .transaction_classification_service
+            .classify_transaction_by_signature(signature.as_str())
+            .await;
+        if let Err(error) = transaction_classification_result {
+            return Err(error);
+        }
         return Ok(TokenBackfillSignatureResult {
             resolved_transaction_count: 1,
             missing_transaction_count: 0,
diff --git a/kb_lib/src/trade_aggregation.rs b/kb_lib/src/trade_aggregation.rs
index 631c87e..c6c8518 100644
--- a/kb_lib/src/trade_aggregation.rs
+++ b/kb_lib/src/trade_aggregation.rs
@@ -17,32 +17,6 @@ pub struct TradeAggregationResult {
     pub created_trade_event: bool,
 }
 
-type ExtractedTradeAmounts = (
-    std::option::Option<std::string::String>,
-    std::option::Option<std::string::String>,
-    std::option::Option<f64>,
-);
-
-#[derive(Debug, Clone)]
-struct PumpSwapPoolBalanceDeltaAmounts {
-    base_amount_raw: std::string::String,
-    quote_amount_raw: std::string::String,
-    price_quote_per_base: f64,
-}
-
-#[derive(Debug, Clone)]
-enum PumpSwapPoolBalanceDeltaResolution {
-    Matched(PumpSwapPoolBalanceDeltaAmounts),
-    DirectionMismatch,
-    MissingData,
-}
-
-#[derive(Debug, Clone)]
-struct TokenBalanceRawAmount {
-    raw_amount: i128,
-    decimals: std::option::Option<u8>,
-}
-
 /// Trade-aggregation service.
 #[derive(Debug, Clone)]
 pub struct TradeAggregationService {
@@ -62,129 +36,49 @@ impl TradeAggregationService {
         &self,
         signature: &str,
     ) -> Result<std::vec::Vec<crate::TradeAggregationResult>, crate::Error> {
-        let transaction_result =
-            crate::query_chain_transactions_get_by_signature(self.database.as_ref(), signature)
-                .await;
-        let transaction_option = match transaction_result {
-            Ok(transaction_option) => transaction_option,
-            Err(error) => return Err(error),
-        };
-        let transaction = match transaction_option {
-            Some(transaction) => transaction,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "cannot aggregate trades for unknown transaction '{}'",
-                    signature
-                )));
-            },
-        };
-        let transaction_id = match transaction.id {
-            Some(transaction_id) => transaction_id,
-            None => {
-                return Err(crate::Error::InvalidState(format!(
-                    "transaction '{}' has no internal id",
-                    signature
-                )));
-            },
-        };
-        let decoded_events_result = crate::query_dex_decoded_events_list_by_transaction_id(
-            self.database.as_ref(),
-            transaction_id,
-        )
-        .await;
-        let decoded_events = match decoded_events_result {
-            Ok(decoded_events) => decoded_events,
-            Err(error) => return Err(error),
-        };
-        let mut results = std::vec::Vec::new();
-        for decoded_event in &decoded_events {
-            if !is_trade_event_kind(decoded_event.event_kind.as_str()) {
-                continue;
-            }
-            let decoded_event_id = match decoded_event.id {
-                Some(decoded_event_id) => decoded_event_id,
-                None => {
-                    return Err(crate::Error::InvalidState(
-                        "decoded event has no internal id".to_string(),
-                    ));
-                },
-            };
-            let existing_trade_result = crate::query_trade_events_get_by_decoded_event_id(
+        let transaction_context =
+            crate::trade_aggregation_context::load_trade_aggregation_transaction_context(
                 self.database.as_ref(),
-                decoded_event_id,
+                signature,
             )
             .await;
-            let existing_trade_option = match existing_trade_result {
-                Ok(existing_trade_option) => existing_trade_option,
+        let transaction_context = match transaction_context {
+            Ok(transaction_context) => transaction_context,
+            Err(error) => return Err(error),
+        };
+        let transaction = transaction_context.transaction;
+        let transaction_id = transaction_context.transaction_id;
+        let decoded_events = transaction_context.decoded_events;
+        let mut results = std::vec::Vec::new();
+        for decoded_event in &decoded_events {
+            if !crate::is_dex_trade_event_kind(decoded_event.event_kind.as_str()) {
+                continue;
+            }
+            let event_context =
+                crate::trade_aggregation_context::load_trade_aggregation_decoded_event_context(
+                    self.database.as_ref(),
+                    decoded_event,
+                )
+                .await;
+            let event_context = match event_context {
+                Ok(Some(event_context)) => event_context,
+                Ok(None) => continue,
                 Err(error) => return Err(error),
             };
-            let pool_address = match decoded_event.pool_account.clone() {
-                Some(pool_address) => pool_address,
-                None => continue,
-            };
-            let pool_result =
-                crate::query_pools_get_by_address(self.database.as_ref(), pool_address.as_str())
-                    .await;
-            let pool_option = match pool_result {
-                Ok(pool_option) => pool_option,
-                Err(error) => return Err(error),
-            };
-            let pool = match pool_option {
-                Some(pool) => pool,
-                None => continue,
-            };
-            let pool_id = match pool.id {
-                Some(pool_id) => pool_id,
-                None => {
-                    return Err(crate::Error::InvalidState(format!(
-                        "pool '{}' has no internal id",
-                        pool.address
-                    )));
-                },
-            };
-            let pair_result =
-                crate::query_pairs_get_by_pool_id(self.database.as_ref(), pool_id).await;
-            let pair_option = match pair_result {
-                Ok(pair_option) => pair_option,
-                Err(error) => return Err(error),
-            };
-            let pair = match pair_option {
-                Some(pair) => pair,
-                None => continue,
-            };
-            let pair_id = match pair.id {
-                Some(pair_id) => pair_id,
-                None => {
-                    return Err(crate::Error::InvalidState(format!(
-                        "pair for pool '{}' has no internal id",
-                        pool_id
-                    )));
-                },
-            };
-            let base_token_result =
-                crate::query_tokens_get_by_id(self.database.as_ref(), pair.base_token_id).await;
-            let (base_token_mint, base_token_decimals) = match base_token_result {
-                Ok(Some(token)) => (Some(token.mint), token.decimals),
-                Ok(None) => (None, None),
-                Err(error) => return Err(error),
-            };
-            let quote_token_result =
-                crate::query_tokens_get_by_id(self.database.as_ref(), pair.quote_token_id).await;
-            let (quote_token_mint, quote_token_decimals) = match quote_token_result {
-                Ok(Some(token)) => (Some(token.mint), token.decimals),
-                Ok(None) => (None, None),
-                Err(error) => return Err(error),
-            };
-            let pool_tokens_result =
-                crate::query_pool_tokens_list_by_pool_id(self.database.as_ref(), pool_id).await;
-            let pool_tokens = match pool_tokens_result {
-                Ok(pool_tokens) => pool_tokens,
-                Err(error) => return Err(error),
-            };
-            let base_vault_address =
-                find_pool_token_vault_address_by_token_id(&pool_tokens, pair.base_token_id);
-            let quote_vault_address =
-                find_pool_token_vault_address_by_token_id(&pool_tokens, pair.quote_token_id);
+
+            let decoded_event_id = event_context.decoded_event_id;
+            let existing_trade_option = event_context.existing_trade_event;
+            let pool_address = event_context.pool_address;
+            let pool = event_context.pool;
+            let pool_id = event_context.pool_id;
+            let pair = event_context.pair;
+            let pair_id = event_context.pair_id;
+            let base_token_mint = event_context.base_token_mint;
+            let base_token_decimals = event_context.base_token_decimals;
+            let quote_token_mint = event_context.quote_token_mint;
+            let quote_token_decimals = event_context.quote_token_decimals;
+            let base_vault_address = event_context.base_vault_address;
+            let quote_vault_address = event_context.quote_vault_address;
             let payload_result =
                 serde_json::from_str::<serde_json::Value>(decoded_event.payload_json.as_str());
             let payload = match payload_result {
@@ -200,7 +94,8 @@ impl TradeAggregationService {
                     continue;
                 },
             };
-            if !is_decoded_event_trade_candidate(decoded_event.event_kind.as_str(), &payload) {
+            if !crate::is_decoded_event_trade_candidate(decoded_event.event_kind.as_str(), &payload)
+            {
                 tracing::debug!(
                     event_kind = %decoded_event.event_kind,
                     pool_account = ?decoded_event.pool_account,
@@ -209,7 +104,10 @@ impl TradeAggregationService {
                 );
                 continue;
             }
-            if !is_decoded_event_candle_candidate(decoded_event.event_kind.as_str(), &payload) {
+            if !crate::is_decoded_event_candle_candidate(
+                decoded_event.event_kind.as_str(),
+                &payload,
+            ) {
                 tracing::debug!(
                     event_kind = %decoded_event.event_kind,
                     pool_account = ?decoded_event.pool_account,
@@ -218,416 +116,32 @@ impl TradeAggregationService {
                 );
                 continue;
             }
-            let trade_side = extract_trade_side(decoded_event.event_kind.as_str(), &payload);
-            let mut base_amount_raw = extract_amount_string(
-                &payload,
-                &["baseAmountRaw", "base_amount_raw", "baseAmount", "amountBase", "amountInBase"],
-            );
-            let mut quote_amount_raw = extract_amount_string(
-                &payload,
-                &[
-                    "quoteAmountRaw",
-                    "quote_amount_raw",
-                    "quoteAmount",
-                    "amountQuote",
-                    "amountOutQuote",
-                ],
-            );
-            let mut price_quote_per_base = None;
-            if decoded_event.event_kind.starts_with("pump_swap.")
-                && (base_amount_raw.is_none()
-                    || quote_amount_raw.is_none()
-                    || price_quote_per_base.is_none())
-            {
-                let pool_owner_result =
-                    match (base_token_mint.as_deref(), quote_token_mint.as_deref()) {
-                        (Some(base_mint), Some(quote_mint)) => {
-                            resolve_pump_swap_trade_amounts_from_pool_balance_deltas(
-                                transaction.meta_json.as_deref(),
-                                pool_address.as_str(),
-                                base_mint,
-                                quote_mint,
-                                decoded_event.event_kind.as_str(),
-                                base_token_decimals,
-                                quote_token_decimals,
-                            )
-                        },
-                        _ => Ok(PumpSwapPoolBalanceDeltaResolution::MissingData),
-                    };
-                let pool_owner_resolution = match pool_owner_result {
-                    Ok(pool_owner_resolution) => pool_owner_resolution,
-                    Err(error) => return Err(error),
-                };
-                let pool_owner_resolution_label = match &pool_owner_resolution {
-                    PumpSwapPoolBalanceDeltaResolution::Matched(_) => "matched",
-                    PumpSwapPoolBalanceDeltaResolution::DirectionMismatch => "direction_mismatch",
-                    PumpSwapPoolBalanceDeltaResolution::MissingData => "missing_data",
-                };
-                tracing::debug!(
-                    event_kind = %decoded_event.event_kind,
-                    pool_account = ?decoded_event.pool_account,
-                    decoded_event_id = ?decoded_event.id,
-                    transaction_signature = %transaction.signature,
-                    base_mint = ?base_token_mint,
-                    quote_mint = ?quote_token_mint,
-                    pool_owner_resolution = %pool_owner_resolution_label,
-                    "pump_swap pool-owner delta resolution result"
-                );
-                match pool_owner_resolution {
-                    PumpSwapPoolBalanceDeltaResolution::Matched(amounts) => {
-                        base_amount_raw = Some(amounts.base_amount_raw);
-                        quote_amount_raw = Some(amounts.quote_amount_raw);
-                        price_quote_per_base = Some(amounts.price_quote_per_base);
-                        tracing::debug!(
-                            event_kind = %decoded_event.event_kind,
-                            pool_account = ?decoded_event.pool_account,
-                            decoded_event_id = ?decoded_event.id,
-                            base_mint = ?base_token_mint,
-                            quote_mint = ?quote_token_mint,
-                            base_amount_raw = ?base_amount_raw,
-                            quote_amount_raw = ?quote_amount_raw,
-                            price_quote_per_base = ?price_quote_per_base,
-                            "pump_swap trade amounts recovered from pool-owner token balance deltas"
-                        );
-                    },
-                    PumpSwapPoolBalanceDeltaResolution::DirectionMismatch => {
-                        tracing::debug!(
-                            event_kind = %decoded_event.event_kind,
-                            pool_account = ?decoded_event.pool_account,
-                            decoded_event_id = ?decoded_event.id,
-                            transaction_signature = %transaction.signature,
-                            "pump_swap pool-owner full-transaction delta direction mismatch; continuing with instruction-scoped fallbacks"
-                        );
-                    },
-                    PumpSwapPoolBalanceDeltaResolution::MissingData => {},
-                }
-                let decoded_instruction_index = match decoded_event.instruction_id {
-                    Some(instruction_id) => {
-                        let instruction_result = crate::query_chain_instructions_get_by_id(
-                            self.database.as_ref(),
-                            instruction_id,
-                        )
-                        .await;
-                        let instruction_option = match instruction_result {
-                            Ok(instruction_option) => instruction_option,
-                            Err(error) => return Err(error),
-                        };
-                        match instruction_option {
-                            Some(instruction) => Some(instruction.instruction_index),
-                            None => None,
-                        }
-                    },
-                    None => None,
-                };
-                let payload_user_base_token_account = extract_string_by_candidate_keys(
-                    &payload,
-                    &["userBaseTokenAccount", "user_base_token_account"],
-                );
-                let payload_user_quote_token_account = extract_string_by_candidate_keys(
-                    &payload,
-                    &["userQuoteTokenAccount", "user_quote_token_account"],
-                );
-                let payload_pool_base_token_account = extract_string_by_candidate_keys(
-                    &payload,
-                    &["poolBaseTokenAccount", "pool_base_token_account"],
-                );
-                let payload_pool_quote_token_account = extract_string_by_candidate_keys(
-                    &payload,
-                    &["poolQuoteTokenAccount", "pool_quote_token_account"],
-                );
-                let effective_base_vault_address = match base_vault_address.as_deref() {
-                    Some(base_vault_address) => Some(base_vault_address),
-                    None => payload_pool_base_token_account.as_deref(),
-                };
-                let effective_quote_vault_address = match quote_vault_address.as_deref() {
-                    Some(quote_vault_address) => Some(quote_vault_address),
-                    None => payload_pool_quote_token_account.as_deref(),
-                };
-                let (
-                    input_vault_address,
-                    output_vault_address,
-                    input_token_account,
-                    output_token_account,
-                ) = if decoded_event.event_kind.ends_with(".buy") {
-                    (
-                        effective_quote_vault_address,
-                        effective_base_vault_address,
-                        payload_user_quote_token_account.as_deref(),
-                        payload_user_base_token_account.as_deref(),
-                    )
-                } else if decoded_event.event_kind.ends_with(".sell") {
-                    (
-                        effective_base_vault_address,
-                        effective_quote_vault_address,
-                        payload_user_base_token_account.as_deref(),
-                        payload_user_quote_token_account.as_deref(),
-                    )
-                } else {
-                    (None, None, None, None)
-                };
-                let inferred_result = extract_trade_amounts_from_instruction_token_transfers(
-                    transaction.meta_json.as_deref(),
-                    decoded_instruction_index,
-                    input_vault_address,
-                    output_vault_address,
-                    input_token_account,
-                    output_token_account,
-                    effective_base_vault_address,
-                    effective_quote_vault_address,
-                );
-                let inferred = match inferred_result {
-                    Ok(inferred) => inferred,
-                    Err(error) => return Err(error),
-                };
-                if base_amount_raw.is_none() {
-                    base_amount_raw = inferred.0;
-                }
-                if quote_amount_raw.is_none() {
-                    quote_amount_raw = inferred.1;
-                }
-                if price_quote_per_base.is_none() {
-                    price_quote_per_base = inferred.2;
-                }
-                if base_amount_raw.is_none() || quote_amount_raw.is_none() {
-                    let fallback_result = extract_trade_amounts_from_vault_balance_deltas(
-                        transaction.transaction_json.as_str(),
-                        transaction.meta_json.as_deref(),
-                        effective_base_vault_address,
-                        effective_quote_vault_address,
-                    );
-                    let fallback = match fallback_result {
-                        Ok(fallback) => fallback,
-                        Err(error) => return Err(error),
-                    };
-                    if base_amount_raw.is_none() {
-                        base_amount_raw = fallback.0;
-                    }
-                    if quote_amount_raw.is_none() {
-                        quote_amount_raw = fallback.1;
-                    }
-                    if price_quote_per_base.is_none() {
-                        price_quote_per_base = fallback.2;
-                    }
-                }
-                if base_amount_raw.is_none()
-                    || quote_amount_raw.is_none()
-                    || price_quote_per_base.is_none()
-                {
-                    let transaction_value_result = build_transaction_value_with_meta_json(
-                        transaction.transaction_json.as_str(),
-                        transaction.meta_json.as_deref(),
-                    );
-                    let transaction_value = match transaction_value_result {
-                        Ok(transaction_value) => transaction_value,
-                        Err(error) => return Err(error),
-                    };
-                    let fallback_amounts =
-                        match (base_token_mint.as_deref(), quote_token_mint.as_deref()) {
-                            (Some(base_mint), Some(quote_mint)) => {
-                                try_build_pump_swap_trade_amounts_from_token_balance_deltas(
-                                    &transaction_value,
-                                    base_mint,
-                                    quote_mint,
-                                )
-                            },
-                            _ => None,
-                        };
-                    if let Some(fallback_amounts) = fallback_amounts {
-                        if base_amount_raw.is_none() {
-                            base_amount_raw = convert_ui_amount_to_raw_string(
-                                fallback_amounts.base_amount,
-                                base_token_decimals,
-                            );
-                        }
-                        if quote_amount_raw.is_none() {
-                            quote_amount_raw = convert_ui_amount_to_raw_string(
-                                fallback_amounts.quote_amount,
-                                quote_token_decimals,
-                            );
-                        }
-                        if price_quote_per_base.is_none() {
-                            price_quote_per_base = Some(fallback_amounts.price_quote_per_base);
-                        }
-                        tracing::debug!(
-                            event_kind = %decoded_event.event_kind,
-                            pool_account = ?decoded_event.pool_account,
-                            decoded_event_id = ?decoded_event.id,
-                            base_mint = ?base_token_mint,
-                            quote_mint = ?quote_token_mint,
-                            base_amount_raw = ?base_amount_raw,
-                            quote_amount_raw = ?quote_amount_raw,
-                            price_quote_per_base = ?price_quote_per_base,
-                            "pump_swap trade amounts recovered from token balance deltas"
-                        );
-                    }
-                }
-            }
-            if decoded_event.event_kind.starts_with("pump_fun.")
-                && (base_amount_raw.is_none()
-                    || quote_amount_raw.is_none()
-                    || price_quote_per_base.is_none())
-            {
-                let inferred_result = extract_pump_fun_amounts_from_transaction(
-                    transaction.transaction_json.as_str(),
-                    transaction.meta_json.as_deref(),
-                    base_vault_address.as_deref(),
-                    quote_vault_address.as_deref(),
-                );
-                let inferred = match inferred_result {
-                    Ok(inferred) => inferred,
-                    Err(error) => return Err(error),
-                };
-                if base_amount_raw.is_none() {
-                    base_amount_raw = inferred.0;
-                }
-                if quote_amount_raw.is_none() {
-                    quote_amount_raw = inferred.1;
-                }
-                if price_quote_per_base.is_none() {
-                    price_quote_per_base = inferred.2;
-                }
-            }
-            if (decoded_event.event_kind.starts_with("raydium_cpmm.")
-                || decoded_event.event_kind.starts_with("raydium_clmm."))
-                && (base_amount_raw.is_none()
-                    || quote_amount_raw.is_none()
-                    || price_quote_per_base.is_none())
-            {
-                let decoded_instruction_index = match decoded_event.instruction_id {
-                    Some(instruction_id) => {
-                        let instruction_result = crate::query_chain_instructions_get_by_id(
-                            self.database.as_ref(),
-                            instruction_id,
-                        )
-                        .await;
-                        let instruction_option = match instruction_result {
-                            Ok(instruction_option) => instruction_option,
-                            Err(error) => return Err(error),
-                        };
-                        match instruction_option {
-                            Some(instruction) => Some(instruction.instruction_index),
-                            None => None,
-                        }
-                    },
-                    None => None,
-                };
-                let payload_input_vault_address =
-                    extract_string_by_candidate_keys(&payload, &["inputVault", "input_vault"]);
-                let payload_output_vault_address =
-                    extract_string_by_candidate_keys(&payload, &["outputVault", "output_vault"]);
-                let payload_input_token_account = extract_string_by_candidate_keys(
-                    &payload,
-                    &["inputTokenAccount", "input_token_account"],
-                );
-                let payload_output_token_account = extract_string_by_candidate_keys(
-                    &payload,
-                    &["outputTokenAccount", "output_token_account"],
-                );
-                let payload_base_vault_address =
-                    extract_string_by_candidate_keys(&payload, &["baseVault", "base_vault"]);
-                let payload_quote_vault_address =
-                    extract_string_by_candidate_keys(&payload, &["quoteVault", "quote_vault"]);
-                let effective_base_vault_address = match base_vault_address.as_deref() {
-                    Some(base_vault_address) => Some(base_vault_address),
-                    None => payload_base_vault_address.as_deref(),
-                };
-                let effective_quote_vault_address = match quote_vault_address.as_deref() {
-                    Some(quote_vault_address) => Some(quote_vault_address),
-                    None => payload_quote_vault_address.as_deref(),
-                };
-                let inferred_result = extract_trade_amounts_from_instruction_token_transfers(
-                    transaction.meta_json.as_deref(),
-                    decoded_instruction_index,
-                    payload_input_vault_address.as_deref(),
-                    payload_output_vault_address.as_deref(),
-                    payload_input_token_account.as_deref(),
-                    payload_output_token_account.as_deref(),
-                    effective_base_vault_address,
-                    effective_quote_vault_address,
-                );
-                let inferred = match inferred_result {
-                    Ok(inferred) => inferred,
-                    Err(error) => return Err(error),
-                };
-                if base_amount_raw.is_none() {
-                    base_amount_raw = inferred.0;
-                }
-                if quote_amount_raw.is_none() {
-                    quote_amount_raw = inferred.1;
-                }
-                if price_quote_per_base.is_none() {
-                    price_quote_per_base = inferred.2;
-                }
-            }
-            if decoded_event.event_kind.starts_with("raydium_cpmm.")
-                && (base_amount_raw.is_none() || quote_amount_raw.is_none())
-            {
-                let inferred_result = extract_trade_amounts_from_vault_balance_deltas(
-                    transaction.transaction_json.as_str(),
-                    transaction.meta_json.as_deref(),
-                    base_vault_address.as_deref(),
-                    quote_vault_address.as_deref(),
-                );
-                let inferred = match inferred_result {
-                    Ok(inferred) => inferred,
-                    Err(error) => return Err(error),
-                };
-                if base_amount_raw.is_none() {
-                    base_amount_raw = inferred.0;
-                }
-                if quote_amount_raw.is_none() {
-                    quote_amount_raw = inferred.1;
-                }
-                if price_quote_per_base.is_none() {
-                    price_quote_per_base = inferred.2;
-                }
-            }
-            if decoded_event.event_kind.starts_with("raydium_clmm.")
-                && (base_amount_raw.is_none() || quote_amount_raw.is_none())
-            {
-                let inferred_result = extract_trade_amounts_from_vault_balance_deltas(
-                    transaction.transaction_json.as_str(),
-                    transaction.meta_json.as_deref(),
-                    base_vault_address.as_deref(),
-                    quote_vault_address.as_deref(),
-                );
-                let inferred = match inferred_result {
-                    Ok(inferred) => inferred,
-                    Err(error) => return Err(error),
-                };
-                if base_amount_raw.is_none() {
-                    base_amount_raw = inferred.0;
-                }
-                if quote_amount_raw.is_none() {
-                    quote_amount_raw = inferred.1;
-                }
-                if price_quote_per_base.is_none() {
-                    price_quote_per_base = inferred.2;
-                }
-            }
-            if price_quote_per_base.is_none() {
-                price_quote_per_base = compute_price_quote_per_base_from_raw_amounts_with_decimals(
-                    base_amount_raw.as_deref(),
-                    quote_amount_raw.as_deref(),
-                    base_token_decimals,
-                    quote_token_decimals,
-                );
-            }
-            if price_quote_per_base.is_none() {
-                price_quote_per_base = compute_price_quote_per_base_with_decimals(
-                    transaction.meta_json.as_deref(),
-                    transaction.transaction_json.as_str(),
-                    base_vault_address.as_deref(),
-                    quote_vault_address.as_deref(),
-                );
-            }
-            if price_quote_per_base.is_none() {
-                price_quote_per_base = compute_price_quote_per_base_from_raw_amounts(
-                    base_amount_raw.as_deref(),
-                    quote_amount_raw.as_deref(),
-                );
-            }
-            if !is_priced_trade_event(
+            let trade_side = crate::trade_side_resolution::extract_trade_side(
+                decoded_event.event_kind.as_str(),
+                &payload,            );
+            let amount_input = crate::trade_amount_resolution::TradeAmountResolutionInput {
+                database: self.database.as_ref(),
+                transaction: &transaction,
+                decoded_event,
+                payload: &payload,
+                pool_address: pool_address.as_str(),
+                base_token_mint: base_token_mint.as_deref(),
+                quote_token_mint: quote_token_mint.as_deref(),
+                base_token_decimals,
+                quote_token_decimals,
+                base_vault_address: base_vault_address.as_deref(),
+                quote_vault_address: quote_vault_address.as_deref(),
+            };
+            let amount_resolution =
+                crate::trade_amount_resolution::resolve_trade_amounts(&amount_input).await;
+            let amount_resolution = match amount_resolution {
+                Ok(amount_resolution) => amount_resolution,
+                Err(error) => return Err(error),
+            };
+            let base_amount_raw = amount_resolution.base_amount_raw.clone();
+            let quote_amount_raw = amount_resolution.quote_amount_raw.clone();
+            let price_quote_per_base = amount_resolution.price_quote_per_base;
+            if !crate::trade_metric_update::is_priced_trade_event(
                 base_amount_raw.as_deref(),
                 quote_amount_raw.as_deref(),
                 price_quote_per_base,
@@ -644,1803 +158,35 @@ impl TradeAggregationService {
                 );
                 continue;
             }
-            let slot_i64 = convert_slot_to_i64(transaction.slot);
-            let created_trade_event = existing_trade_option.is_none();
-            let trade_event_dto = crate::TradeEventDto::new(
-                pool.dex_id,
-                pool_id,
-                pair_id,
-                transaction_id,
-                decoded_event_id,
-                transaction.signature.clone(),
-                slot_i64,
-                trade_side,
-                pair.base_token_id,
-                pair.quote_token_id,
-                base_amount_raw.clone(),
-                quote_amount_raw.clone(),
-                price_quote_per_base,
-                crate::ObservationSourceKind::Dex,
-                transaction.source_endpoint_name.clone(),
-                decoded_event.payload_json.clone(),
-            );
-            tracing::debug!(
-                event_kind = %decoded_event.event_kind,
-                pool_account = ?decoded_event.pool_account,
-                decoded_event_id = ?decoded_event.id,
-                created_trade_event = created_trade_event,
-                "trade aggregation candidate"
-            );
-            let trade_event_id_result =
-                crate::query_trade_events_upsert(self.database.as_ref(), &trade_event_dto).await;
-            let trade_event_id = match trade_event_id_result {
-                Ok(trade_event_id) => trade_event_id,
-                Err(error) => return Err(error),
-            };
-            let pair_metric_result =
-                crate::query_pair_metrics_get_by_pair_id(self.database.as_ref(), pair_id).await;
-            let pair_metric_option = match pair_metric_result {
-                Ok(pair_metric_option) => pair_metric_option,
-                Err(error) => return Err(error),
-            };
-            let pair_metric_id = if let Some(existing_metric) = pair_metric_option {
-                let existing_metric_id = match existing_metric.id {
-                    Some(existing_metric_id) => existing_metric_id,
-                    None => {
-                        return Err(crate::Error::InvalidState(
-                            "pair metric has no internal id".to_string(),
-                        ));
-                    },
-                };
-                if created_trade_event {
-                    let mut updated_metric = existing_metric.clone();
-                    apply_trade_to_pair_metric(
-                        &mut updated_metric,
-                        slot_i64,
-                        transaction.signature.clone(),
-                        trade_side,
-                        base_amount_raw.clone(),
-                        quote_amount_raw.clone(),
-                        price_quote_per_base,
-                    );
-                    let upsert_result =
-                        crate::query_pair_metrics_upsert(self.database.as_ref(), &updated_metric)
-                            .await;
-                    if let Err(error) = upsert_result {
-                        return Err(error);
-                    }
-                }
-                existing_metric_id
-            } else {
-                let mut new_metric = crate::PairMetricDto::new(pair_id);
-                apply_trade_to_pair_metric(
-                    &mut new_metric,
-                    slot_i64,
-                    transaction.signature.clone(),
+            let materialization_input =
+                crate::trade_event_materialization::TradeEventMaterializationInput {
+                    database: self.database.as_ref(),
+                    persistence: &self.persistence,
+                    transaction: &transaction,
+                    transaction_id,
+                    decoded_event,
+                    decoded_event_id,
+                    existing_trade_event: existing_trade_option,
+                    pool: &pool,
+                    pool_id,
+                    pair: &pair,
+                    pair_id,
                     trade_side,
-                    base_amount_raw.clone(),
-                    quote_amount_raw.clone(),
-                    price_quote_per_base,
-                );
-                let upsert_result =
-                    crate::query_pair_metrics_upsert(self.database.as_ref(), &new_metric).await;
-                match upsert_result {
-                    Ok(pair_metric_id) => pair_metric_id,
-                    Err(error) => return Err(error),
-                }
-            };
-            if created_trade_event {
-                let payload = serde_json::json!({
-                    "pairId": pair_id,
-                    "poolId": pool_id,
-                    "tradeEventId": trade_event_id,
-                    "tradeSide": format!("{:?}", trade_side),
-                    "baseAmountRaw": base_amount_raw,
-                    "quoteAmountRaw": quote_amount_raw,
-                    "priceQuotePerBase": price_quote_per_base,
-                    "transactionSignature": transaction.signature
-                });
-                let observation_result = self
-                    .persistence
-                    .record_observation(&crate::DetectionObservationInput::new(
-                        "dex.trade_aggregation".to_string(),
-                        crate::ObservationSourceKind::Dex,
-                        transaction.source_endpoint_name.clone(),
-                        transaction.signature.clone(),
-                        transaction.slot,
-                        payload.clone(),
-                    ))
-                    .await;
-                let observation_id = match observation_result {
-                    Ok(observation_id) => observation_id,
-                    Err(error) => return Err(error),
+                    amount_resolution: &amount_resolution,
                 };
-                let signal_result = self
-                    .persistence
-                    .record_signal(&crate::DetectionSignalInput::new(
-                        "signal.dex.trade_aggregation.recorded".to_string(),
-                        crate::AnalysisSignalSeverity::Low,
-                        transaction.signature.clone(),
-                        Some(observation_id),
-                        None,
-                        payload,
-                    ))
+            let materialization_result =
+                crate::trade_event_materialization::materialize_trade_event(materialization_input)
                     .await;
-                if let Err(error) = signal_result {
-                    return Err(error);
-                }
-            }
-            results.push(crate::TradeAggregationResult {
-                trade_event_id,
-                pair_metric_id,
-                pair_id,
-                pool_id,
-                created_trade_event,
-            });
+            let materialization_result = match materialization_result {
+                Ok(materialization_result) => materialization_result,
+                Err(error) => return Err(error),
+            };
+            results.push(materialization_result);
         }
         return Ok(results);
     }
 }
 
-fn is_decoded_event_trade_candidate(event_kind: &str, payload: &serde_json::Value) -> bool {
-    let trade_candidate_option =
-        extract_top_level_bool_by_candidate_keys(payload, &["tradeCandidate", "trade_candidate"]);
-    if let Some(trade_candidate) = trade_candidate_option {
-        return trade_candidate;
-    }
-    let event_category_option =
-        extract_string_by_candidate_keys(payload, &["eventCategory", "event_category"]);
-    if let Some(event_category) = event_category_option {
-        return event_category.as_str() == "trade";
-    }
-    return is_trade_event_kind(event_kind);
-}
-
-fn is_decoded_event_candle_candidate(event_kind: &str, payload: &serde_json::Value) -> bool {
-    let candle_candidate_option =
-        extract_top_level_bool_by_candidate_keys(payload, &["candleCandidate", "candle_candidate"]);
-    if let Some(candle_candidate) = candle_candidate_option {
-        return candle_candidate;
-    }
-    if !is_decoded_event_trade_candidate(event_kind, payload) {
-        return false;
-    }
-    return is_trade_event_kind(event_kind);
-}
-
-fn extract_top_level_bool_by_candidate_keys(
-    payload: &serde_json::Value,
-    candidate_keys: &[&str],
-) -> std::option::Option<bool> {
-    let object = match payload.as_object() {
-        Some(object) => object,
-        None => return None,
-    };
-    for candidate_key in candidate_keys {
-        let value_option = object.get(*candidate_key);
-        let value = match value_option {
-            Some(value) => value,
-            None => continue,
-        };
-        if let Some(value_bool) = value.as_bool() {
-            return Some(value_bool);
-        }
-        if let Some(value_i64) = value.as_i64() {
-            return Some(value_i64 != 0);
-        }
-        if let Some(value_u64) = value.as_u64() {
-            return Some(value_u64 != 0);
-        }
-        if let Some(value_text) = value.as_str() {
-            let normalized = value_text.trim().to_ascii_lowercase();
-            if normalized.as_str() == "true" {
-                return Some(true);
-            }
-            if normalized.as_str() == "false" {
-                return Some(false);
-            }
-            if normalized.as_str() == "1" {
-                return Some(true);
-            }
-            if normalized.as_str() == "0" {
-                return Some(false);
-            }
-        }
-    }
-    return None;
-}
-
-fn is_priced_trade_event(
-    base_amount_raw: std::option::Option<&str>,
-    quote_amount_raw: std::option::Option<&str>,
-    price_quote_per_base: std::option::Option<f64>,
-) -> bool {
-    let base_amount_raw = match base_amount_raw {
-        Some(base_amount_raw) => base_amount_raw.trim(),
-        None => return false,
-    };
-    if base_amount_raw.is_empty() {
-        return false;
-    }
-    let base_amount_result = base_amount_raw.parse::<i128>();
-    let base_amount = match base_amount_result {
-        Ok(base_amount) => base_amount,
-        Err(_) => return false,
-    };
-    if base_amount <= 0 {
-        return false;
-    }
-    let quote_amount_raw = match quote_amount_raw {
-        Some(quote_amount_raw) => quote_amount_raw.trim(),
-        None => return false,
-    };
-    if quote_amount_raw.is_empty() {
-        return false;
-    }
-    let quote_amount_result = quote_amount_raw.parse::<i128>();
-    let quote_amount = match quote_amount_result {
-        Ok(quote_amount) => quote_amount,
-        Err(_) => return false,
-    };
-    if quote_amount <= 0 {
-        return false;
-    }
-    let price = match price_quote_per_base {
-        Some(price) => price,
-        None => return false,
-    };
-    if !price.is_finite() {
-        return false;
-    }
-    return price > 0.0;
-}
-
-fn is_trade_event_kind(is_trade_event_kind: &str) -> bool {
-    if is_trade_event_kind.ends_with(".swap") {
-        return true;
-    }
-    if is_trade_event_kind.ends_with(".buy") {
-        return true;
-    }
-    if is_trade_event_kind.ends_with(".sell") {
-        return true;
-    }
-    if is_trade_event_kind == "raydium_cpmm.swap_base_input" {
-        return true;
-    }
-    if is_trade_event_kind == "raydium_cpmm.swap_base_output" {
-        return true;
-    }
-    if is_trade_event_kind == "raydium_clmm.swap_v2" {
-        return true;
-    }
-    if is_trade_event_kind == "raydium_clmm.swap_router_base_in" {
-        return true;
-    }
-    if is_trade_event_kind == "raydium_clmm.swap_router_base_out" {
-        return true;
-    }
-    if is_trade_event_kind == "raydium_clmm.exact_output" {
-        return true;
-    }
-    return false;
-}
-
-fn convert_slot_to_i64(slot: std::option::Option<u64>) -> std::option::Option<i64> {
-    match slot {
-        Some(slot) => match i64::try_from(slot) {
-            Ok(slot) => return Some(slot),
-            Err(_) => return None,
-        },
-        None => return None,
-    }
-}
-
-fn extract_trade_side(event_kind: &str, payload: &serde_json::Value) -> crate::SwapTradeSide {
-    let trade_side_option = extract_string_by_candidate_keys(payload, &["tradeSide", "trade_side"]);
-    match trade_side_option.as_deref() {
-        Some("BuyBase") => return crate::SwapTradeSide::BuyBase,
-        Some("buy") => return crate::SwapTradeSide::BuyBase,
-        Some("BUY") => return crate::SwapTradeSide::BuyBase,
-        Some("SellBase") => return crate::SwapTradeSide::SellBase,
-        Some("sell") => return crate::SwapTradeSide::SellBase,
-        Some("SELL") => return crate::SwapTradeSide::SellBase,
-        _ => {},
-    }
-    if event_kind.ends_with(".buy") {
-        return crate::SwapTradeSide::BuyBase;
-    }
-    if event_kind.ends_with(".sell") {
-        return crate::SwapTradeSide::SellBase;
-    }
-    return crate::SwapTradeSide::Unknown;
-}
-
-fn extract_amount_string(
-    payload: &serde_json::Value,
-    candidate_keys: &[&str],
-) -> std::option::Option<std::string::String> {
-    return extract_scalar_as_string_by_candidate_keys(payload, candidate_keys);
-}
-
-fn apply_trade_to_pair_metric(
-    metric: &mut crate::PairMetricDto,
-    slot: std::option::Option<i64>,
-    signature: std::string::String,
-    trade_side: crate::SwapTradeSide,
-    base_amount_raw: std::option::Option<std::string::String>,
-    quote_amount_raw: std::option::Option<std::string::String>,
-    price_quote_per_base: std::option::Option<f64>,
-) {
-    metric.trade_count += 1;
-    if trade_side == crate::SwapTradeSide::BuyBase {
-        metric.buy_count += 1;
-    }
-    if trade_side == crate::SwapTradeSide::SellBase {
-        metric.sell_count += 1;
-    }
-    if metric.first_slot.is_none() {
-        metric.first_slot = slot;
-    }
-    if metric.first_signature.is_none() {
-        metric.first_signature = Some(signature.clone());
-    }
-    metric.last_slot = slot;
-    metric.last_signature = Some(signature);
-    metric.cumulative_base_amount_raw =
-        add_raw_amounts(metric.cumulative_base_amount_raw.clone(), base_amount_raw);
-    metric.cumulative_quote_amount_raw =
-        add_raw_amounts(metric.cumulative_quote_amount_raw.clone(), quote_amount_raw);
-    if price_quote_per_base.is_some() {
-        metric.last_price_quote_per_base = price_quote_per_base;
-    }
-    metric.updated_at = chrono::Utc::now();
-}
-
-fn add_raw_amounts(
-    left: std::option::Option<std::string::String>,
-    right: std::option::Option<std::string::String>,
-) -> std::option::Option<std::string::String> {
-    match (left, right) {
-        (None, None) => return None,
-        (Some(left), None) => return Some(left),
-        (None, Some(right)) => return Some(right),
-        (Some(left), Some(right)) => {
-            let left_value_result = left.parse::<i128>();
-            let left_value = match left_value_result {
-                Ok(left_value) => left_value,
-                Err(_) => return Some(left),
-            };
-            let right_value_result = right.parse::<i128>();
-            let right_value = match right_value_result {
-                Ok(right_value) => right_value,
-                Err(_) => return Some(left),
-            };
-            return Some((left_value + right_value).to_string());
-        },
-    }
-}
-
-fn extract_string_by_candidate_keys(
-    value: &serde_json::Value,
-    candidate_keys: &[&str],
-) -> std::option::Option<std::string::String> {
-    if let Some(object) = value.as_object() {
-        for candidate_key in candidate_keys {
-            let direct_option = object.get(*candidate_key);
-            if let Some(direct) = direct_option {
-                let direct_text_option = direct.as_str();
-                if let Some(direct_text) = direct_text_option {
-                    return Some(direct_text.to_string());
-                }
-            }
-        }
-        for nested_value in object.values() {
-            let nested_result = extract_string_by_candidate_keys(nested_value, candidate_keys);
-            if nested_result.is_some() {
-                return nested_result;
-            }
-        }
-        return None;
-    }
-    if let Some(array) = value.as_array() {
-        for nested_value in array {
-            let nested_result = extract_string_by_candidate_keys(nested_value, candidate_keys);
-            if nested_result.is_some() {
-                return nested_result;
-            }
-        }
-    }
-    return None;
-}
-
-fn extract_scalar_as_string_by_candidate_keys(
-    value: &serde_json::Value,
-    candidate_keys: &[&str],
-) -> std::option::Option<std::string::String> {
-    if let Some(object) = value.as_object() {
-        for candidate_key in candidate_keys {
-            let direct_option = object.get(*candidate_key);
-            if let Some(direct) = direct_option {
-                if let Some(text) = direct.as_str() {
-                    return Some(text.to_string());
-                }
-                if let Some(number) = direct.as_i64() {
-                    return Some(number.to_string());
-                }
-                if let Some(number) = direct.as_u64() {
-                    return Some(number.to_string());
-                }
-                if let Some(number) = direct.as_f64() {
-                    return Some(number.to_string());
-                }
-            }
-        }
-        for nested_value in object.values() {
-            let nested_result =
-                extract_scalar_as_string_by_candidate_keys(nested_value, candidate_keys);
-            if nested_result.is_some() {
-                return nested_result;
-            }
-        }
-        return None;
-    }
-    if let Some(array) = value.as_array() {
-        for nested_value in array {
-            let nested_result =
-                extract_scalar_as_string_by_candidate_keys(nested_value, candidate_keys);
-            if nested_result.is_some() {
-                return nested_result;
-            }
-        }
-    }
-    return None;
-}
-
-fn find_pool_token_vault_address_by_token_id(
-    pool_tokens: &[crate::PoolTokenDto],
-    token_id: i64,
-) -> std::option::Option<std::string::String> {
-    for pool_token in pool_tokens {
-        if pool_token.token_id != token_id {
-            continue;
-        }
-        let vault_address_option = pool_token.vault_address.clone();
-        let vault_address = match vault_address_option {
-            Some(vault_address) => vault_address.trim().to_string(),
-            None => continue,
-        };
-        if vault_address.is_empty() {
-            continue;
-        }
-        return Some(vault_address);
-    }
-    return None;
-}
-
-fn extract_trade_amounts_from_vault_balance_deltas(
-    transaction_json: &str,
-    meta_json: std::option::Option<&str>,
-    base_vault_address: std::option::Option<&str>,
-    quote_vault_address: std::option::Option<&str>,
-) -> Result<ExtractedTradeAmounts, crate::Error> {
-    let meta_json = match meta_json {
-        Some(meta_json) => meta_json,
-        None => return Ok((None, None, None)),
-    };
-    let transaction_value_result = serde_json::from_str::<serde_json::Value>(transaction_json);
-    let transaction_value = match transaction_value_result {
-        Ok(transaction_value) => transaction_value,
-        Err(error) => {
-            return Err(crate::Error::Json(format!(
-                "cannot parse transaction_json for pump_swap amount extraction: {}",
-                error
-            )));
-        },
-    };
-    let meta_value_result = serde_json::from_str::<serde_json::Value>(meta_json);
-    let meta_value = match meta_value_result {
-        Ok(meta_value) => meta_value,
-        Err(error) => {
-            return Err(crate::Error::Json(format!(
-                "cannot parse meta_json for pump_swap amount extraction: {}",
-                error
-            )));
-        },
-    };
-    let account_keys_result = extract_transaction_account_keys(&transaction_value);
-    let account_keys = match account_keys_result {
-        Ok(account_keys) => account_keys,
-        Err(error) => return Err(error),
-    };
-    let pre_balances_result =
-        extract_token_balance_map(&meta_value, &account_keys, "preTokenBalances");
-    let pre_balances = match pre_balances_result {
-        Ok(pre_balances) => pre_balances,
-        Err(error) => return Err(error),
-    };
-    let post_balances_result =
-        extract_token_balance_map(&meta_value, &account_keys, "postTokenBalances");
-    let post_balances = match post_balances_result {
-        Ok(post_balances) => post_balances,
-        Err(error) => return Err(error),
-    };
-    let mut base_amount_raw = None;
-    let mut quote_amount_raw = None;
-    let mut price_quote_per_base = None;
-    if let Some(base_vault_address) = base_vault_address {
-        let base_pre = pre_balances.get(base_vault_address);
-        let base_post = post_balances.get(base_vault_address);
-        let base_pre_raw = base_pre.map(|value| return value.0.clone());
-        let base_post_raw = base_post.map(|value| return value.0.clone());
-        base_amount_raw = compute_amount_delta_abs(base_pre_raw, base_post_raw);
-        let base_pre_ui = base_pre.and_then(|value| return value.1);
-        let base_post_ui = base_post.and_then(|value| return value.1);
-        let base_delta_ui = compute_ui_delta_abs(base_pre_ui, base_post_ui);
-        if let Some(quote_vault_address) = quote_vault_address {
-            let quote_pre = pre_balances.get(quote_vault_address);
-            let quote_post = post_balances.get(quote_vault_address);
-            let quote_pre_raw = quote_pre.map(|value| return value.0.clone());
-            let quote_post_raw = quote_post.map(|value| return value.0.clone());
-            quote_amount_raw = compute_amount_delta_abs(quote_pre_raw, quote_post_raw);
-            let quote_pre_ui = quote_pre.and_then(|value| return value.1);
-            let quote_post_ui = quote_post.and_then(|value| return value.1);
-            let quote_delta_ui = compute_ui_delta_abs(quote_pre_ui, quote_post_ui);
-            if let (Some(base_delta_ui), Some(quote_delta_ui)) = (base_delta_ui, quote_delta_ui) {
-                if base_delta_ui > 0.0 {
-                    price_quote_per_base = Some(quote_delta_ui / base_delta_ui);
-                }
-            }
-        }
-    }
-    return Ok((base_amount_raw, quote_amount_raw, price_quote_per_base));
-}
-
-fn extract_trade_amounts_from_instruction_token_transfers(
-    meta_json: std::option::Option<&str>,
-    instruction_index: std::option::Option<u32>,
-    input_vault_address: std::option::Option<&str>,
-    output_vault_address: std::option::Option<&str>,
-    input_token_account: std::option::Option<&str>,
-    output_token_account: std::option::Option<&str>,
-    base_vault_address: std::option::Option<&str>,
-    quote_vault_address: std::option::Option<&str>,
-) -> Result<ExtractedTradeAmounts, crate::Error> {
-    let meta_json = match meta_json {
-        Some(meta_json) => meta_json,
-        None => return Ok((None, None, None)),
-    };
-    let instruction_index = match instruction_index {
-        Some(instruction_index) => u64::from(instruction_index),
-        None => return Ok((None, None, None)),
-    };
-    let input_vault_address = match input_vault_address {
-        Some(input_vault_address) => input_vault_address.trim(),
-        None => return Ok((None, None, None)),
-    };
-    let output_vault_address = match output_vault_address {
-        Some(output_vault_address) => output_vault_address.trim(),
-        None => return Ok((None, None, None)),
-    };
-    let input_token_account = match input_token_account {
-        Some(input_token_account) => input_token_account.trim(),
-        None => return Ok((None, None, None)),
-    };
-    let output_token_account = match output_token_account {
-        Some(output_token_account) => output_token_account.trim(),
-        None => return Ok((None, None, None)),
-    };
-    let base_vault_address = match base_vault_address {
-        Some(base_vault_address) => base_vault_address.trim(),
-        None => return Ok((None, None, None)),
-    };
-    let quote_vault_address = match quote_vault_address {
-        Some(quote_vault_address) => quote_vault_address.trim(),
-        None => return Ok((None, None, None)),
-    };
-    if input_vault_address.is_empty()
-        || output_vault_address.is_empty()
-        || input_token_account.is_empty()
-        || output_token_account.is_empty()
-        || base_vault_address.is_empty()
-        || quote_vault_address.is_empty()
-    {
-        return Ok((None, None, None));
-    }
-    let meta_value_result = serde_json::from_str::<serde_json::Value>(meta_json);
-    let meta_value = match meta_value_result {
-        Ok(meta_value) => meta_value,
-        Err(error) => {
-            return Err(crate::Error::Json(format!(
-                "cannot parse meta_json for instruction-scoped token transfer amount extraction: {}",
-                error
-            )));
-        },
-    };
-    let inner_groups_option =
-        meta_value.get("innerInstructions").and_then(|value| return value.as_array());
-    let inner_groups = match inner_groups_option {
-        Some(inner_groups) => inner_groups,
-        None => return Ok((None, None, None)),
-    };
-    let mut input_amount_raw = None;
-    let mut output_amount_raw = None;
-    for inner_group in inner_groups {
-        let group_index_option = inner_group.get("index").and_then(|value| return value.as_u64());
-        let group_index = match group_index_option {
-            Some(group_index) => group_index,
-            None => continue,
-        };
-        if group_index != instruction_index {
-            continue;
-        }
-        let instructions_option =
-            inner_group.get("instructions").and_then(|value| return value.as_array());
-        let instructions = match instructions_option {
-            Some(instructions) => instructions,
-            None => continue,
-        };
-        for instruction in instructions {
-            if !is_spl_token_transfer_instruction(instruction) {
-                continue;
-            }
-            let parsed_option = instruction.get("parsed");
-            let parsed = match parsed_option {
-                Some(parsed) => parsed,
-                None => continue,
-            };
-            let info_option = parsed.get("info");
-            let info = match info_option {
-                Some(info) => info,
-                None => continue,
-            };
-            let source_option = extract_string_by_candidate_keys(info, &["source"]);
-            let source = match source_option {
-                Some(source) => source,
-                None => continue,
-            };
-            let destination_option = extract_string_by_candidate_keys(info, &["destination"]);
-            let destination = match destination_option {
-                Some(destination) => destination,
-                None => continue,
-            };
-            let amount_option = extract_scalar_as_string_by_candidate_keys(info, &["amount"]);
-            let amount = match amount_option {
-                Some(amount) => amount,
-                None => continue,
-            };
-            if input_amount_raw.is_none()
-                && account_equals(source.as_str(), input_token_account)
-                && account_equals(destination.as_str(), input_vault_address)
-            {
-                input_amount_raw = Some(amount.clone());
-                continue;
-            }
-            if output_amount_raw.is_none()
-                && account_equals(source.as_str(), output_vault_address)
-                && account_equals(destination.as_str(), output_token_account)
-            {
-                output_amount_raw = Some(amount);
-                continue;
-            }
-        }
-    }
-    if input_amount_raw.is_none() && output_amount_raw.is_none() {
-        return Ok((None, None, None));
-    }
-    if account_equals(input_vault_address, base_vault_address)
-        && account_equals(output_vault_address, quote_vault_address)
-    {
-        return Ok((input_amount_raw, output_amount_raw, None));
-    }
-    if account_equals(input_vault_address, quote_vault_address)
-        && account_equals(output_vault_address, base_vault_address)
-    {
-        return Ok((output_amount_raw, input_amount_raw, None));
-    }
-    return Ok((None, None, None));
-}
-
-fn is_spl_token_transfer_instruction(instruction: &serde_json::Value) -> bool {
-    let program_id_option = instruction.get("programId").and_then(|value| return value.as_str());
-    if let Some(program_id) = program_id_option {
-        let spl_token_program_id = crate::SPL_TOKEN_PROGRAM_ID.to_string();
-        let spl_token_2022_program_id = crate::SPL_TOKEN_2022_PROGRAM_ID.to_string();
-        if program_id != spl_token_program_id.as_str()
-            && program_id != spl_token_2022_program_id.as_str()
-        {
-            return false;
-        }
-    }
-    let parsed_type_option = instruction
-        .get("parsed")
-        .and_then(|parsed| return parsed.get("type"))
-        .and_then(|value| return value.as_str());
-    match parsed_type_option {
-        Some("transfer") => return true,
-        Some("transferChecked") => return true,
-        _ => return false,
-    }
-}
-
-fn account_equals(left: &str, account_equals: &str) -> bool {
-    let left = left.trim();
-    let right = account_equals.trim();
-    if left.is_empty() || right.is_empty() {
-        return false;
-    }
-    return left == right;
-}
-
-fn extract_pump_fun_amounts_from_transaction(
-    transaction_json: &str,
-    meta_json: std::option::Option<&str>,
-    base_vault_address: std::option::Option<&str>,
-    quote_native_address: std::option::Option<&str>,
-) -> Result<ExtractedTradeAmounts, crate::Error> {
-    let meta_json = match meta_json {
-        Some(meta_json) => meta_json,
-        None => return Ok((None, None, None)),
-    };
-    let transaction_value_result = serde_json::from_str::<serde_json::Value>(transaction_json);
-    let transaction_value = match transaction_value_result {
-        Ok(transaction_value) => transaction_value,
-        Err(error) => {
-            return Err(crate::Error::Json(format!(
-                "cannot parse transaction_json for pump_fun amount extraction: {}",
-                error
-            )));
-        },
-    };
-    let meta_value_result = serde_json::from_str::<serde_json::Value>(meta_json);
-    let meta_value = match meta_value_result {
-        Ok(meta_value) => meta_value,
-        Err(error) => {
-            return Err(crate::Error::Json(format!(
-                "cannot parse meta_json for pump_fun amount extraction: {}",
-                error
-            )));
-        },
-    };
-    let account_keys_result = extract_transaction_account_keys(&transaction_value);
-    let account_keys = match account_keys_result {
-        Ok(account_keys) => account_keys,
-        Err(error) => return Err(error),
-    };
-    let pre_balances_result =
-        extract_token_balance_map(&meta_value, &account_keys, "preTokenBalances");
-    let pre_balances = match pre_balances_result {
-        Ok(pre_balances) => pre_balances,
-        Err(error) => return Err(error),
-    };
-    let post_balances_result =
-        extract_token_balance_map(&meta_value, &account_keys, "postTokenBalances");
-    let post_balances = match post_balances_result {
-        Ok(post_balances) => post_balances,
-        Err(error) => return Err(error),
-    };
-    let mut base_amount_raw = None;
-    let mut quote_amount_raw = None;
-    let mut price_quote_per_base = None;
-    let mut base_delta_ui = None;
-    if let Some(base_vault_address) = base_vault_address {
-        let base_pre = pre_balances.get(base_vault_address);
-        let base_post = post_balances.get(base_vault_address);
-        let base_pre_raw = base_pre.map(|value| return value.0.clone());
-        let base_post_raw = base_post.map(|value| return value.0.clone());
-        base_amount_raw = compute_amount_delta_abs(base_pre_raw, base_post_raw);
-        let base_pre_ui = base_pre.and_then(|value| return value.1);
-        let base_post_ui = base_post.and_then(|value| return value.1);
-        base_delta_ui = compute_ui_delta_abs(base_pre_ui, base_post_ui);
-    }
-    if let Some(quote_native_address) = quote_native_address {
-        let quote_delta_result = extract_native_balance_delta_by_address(
-            &meta_value,
-            &account_keys,
-            quote_native_address,
-        );
-        let quote_delta = match quote_delta_result {
-            Ok(quote_delta) => quote_delta,
-            Err(error) => return Err(error),
-        };
-        if let Some(quote_delta_lamports) = quote_delta {
-            quote_amount_raw = Some(quote_delta_lamports.to_string());
-            let quote_delta_ui = quote_delta_lamports as f64 / 1_000_000_000.0;
-            if let Some(base_delta_ui) = base_delta_ui {
-                if base_delta_ui > 0.0 {
-                    price_quote_per_base = Some(quote_delta_ui / base_delta_ui);
-                }
-            }
-        }
-    }
-    return Ok((base_amount_raw, quote_amount_raw, price_quote_per_base));
-}
-
-fn extract_native_balance_delta_by_address(
-    meta_value: &serde_json::Value,
-    account_keys: &[std::string::String],
-    address: &str,
-) -> Result<std::option::Option<u64>, crate::Error> {
-    let mut account_index = None;
-    for (index, account_key) in account_keys.iter().enumerate() {
-        if account_key.as_str() == address {
-            account_index = Some(index);
-            break;
-        }
-    }
-    let account_index = match account_index {
-        Some(account_index) => account_index,
-        None => return Ok(None),
-    };
-    let pre_balances_option =
-        meta_value.get("preBalances").and_then(|value| return value.as_array());
-    let post_balances_option =
-        meta_value.get("postBalances").and_then(|value| return value.as_array());
-    let pre_balances = match pre_balances_option {
-        Some(pre_balances) => pre_balances,
-        None => return Ok(None),
-    };
-    let post_balances = match post_balances_option {
-        Some(post_balances) => post_balances,
-        None => return Ok(None),
-    };
-    if account_index >= pre_balances.len() || account_index >= post_balances.len() {
-        return Ok(None);
-    }
-    let pre_balance_option = pre_balances[account_index].as_u64();
-    let post_balance_option = post_balances[account_index].as_u64();
-    let pre_balance = match pre_balance_option {
-        Some(pre_balance) => pre_balance,
-        None => return Ok(None),
-    };
-    let post_balance = match post_balance_option {
-        Some(post_balance) => post_balance,
-        None => return Ok(None),
-    };
-    if post_balance >= pre_balance {
-        return Ok(Some(post_balance - pre_balance));
-    }
-    return Ok(Some(pre_balance - post_balance));
-}
-
-fn extract_transaction_account_keys(
-    transaction_value: &serde_json::Value,
-) -> Result<std::vec::Vec<std::string::String>, crate::Error> {
-    let candidate_arrays = [
-        transaction_value
-            .get("message")
-            .and_then(|value| return value.get("accountKeys")),
-        transaction_value
-            .get("transaction")
-            .and_then(|value| return value.get("message"))
-            .and_then(|value| return value.get("accountKeys")),
-        transaction_value.get("accountKeys"),
-    ];
-    for candidate_array_option in candidate_arrays {
-        let candidate_array = match candidate_array_option {
-            Some(candidate_array) => candidate_array,
-            None => continue,
-        };
-        let array = match candidate_array.as_array() {
-            Some(array) => array,
-            None => continue,
-        };
-        let mut account_keys = std::vec::Vec::new();
-        for item in array {
-            if let Some(value) = item.as_str() {
-                account_keys.push(value.to_string());
-                continue;
-            }
-            let pubkey_option = item.get("pubkey").and_then(|value| return value.as_str());
-            if let Some(pubkey) = pubkey_option {
-                account_keys.push(pubkey.to_string());
-                continue;
-            }
-        }
-        if !account_keys.is_empty() {
-            return Ok(account_keys);
-        }
-    }
-    return Err(crate::Error::Json(
-        "cannot extract accountKeys from transaction_json".to_string(),
-    ));
-}
-
-fn extract_token_balance_map(
-    meta_value: &serde_json::Value,
-    account_keys: &[std::string::String],
-    field_name: &str,
-) -> Result<
-    std::collections::BTreeMap<
-        std::string::String,
-        (std::string::String, std::option::Option<f64>),
-    >,
-    crate::Error,
-> {
-    let mut result = std::collections::BTreeMap::<
-        std::string::String,
-        (std::string::String, std::option::Option<f64>),
-    >::new();
-    let balances_option = meta_value.get(field_name).and_then(|value| return value.as_array());
-    let balances = match balances_option {
-        Some(balances) => balances,
-        None => return Ok(result),
-    };
-    for balance in balances {
-        let account_index_option =
-            balance.get("accountIndex").and_then(|value| return value.as_u64());
-        let account_index = match account_index_option {
-            Some(account_index) => account_index as usize,
-            None => continue,
-        };
-        if account_index >= account_keys.len() {
-            continue;
-        }
-        let account_address = account_keys[account_index].clone();
-        let ui_token_amount_option = balance.get("uiTokenAmount");
-        let ui_token_amount = match ui_token_amount_option {
-            Some(ui_token_amount) => ui_token_amount,
-            None => continue,
-        };
-        let raw_amount_option =
-            ui_token_amount.get("amount").and_then(|value| return value.as_str());
-        let raw_amount = match raw_amount_option {
-            Some(raw_amount) => raw_amount.to_string(),
-            None => continue,
-        };
-        let ui_amount_string_option =
-            ui_token_amount.get("uiAmountString").and_then(|value| return value.as_str());
-        let ui_amount = match ui_amount_string_option {
-            Some(ui_amount_string) => {
-                let parse_result = ui_amount_string.parse::<f64>();
-                match parse_result {
-                    Ok(ui_amount) => Some(ui_amount),
-                    Err(_) => None,
-                }
-            },
-            None => None,
-        };
-        result.insert(account_address, (raw_amount, ui_amount));
-    }
-    return Ok(result);
-}
-
-fn compute_amount_delta_abs(
-    pre_amount: std::option::Option<std::string::String>,
-    post_amount: std::option::Option<std::string::String>,
-) -> std::option::Option<std::string::String> {
-    let pre_amount = match pre_amount {
-        Some(pre_amount) => pre_amount,
-        None => "0".to_string(),
-    };
-    let post_amount = match post_amount {
-        Some(post_amount) => post_amount,
-        None => "0".to_string(),
-    };
-    let pre_value_result = pre_amount.parse::<i128>();
-    let pre_value = match pre_value_result {
-        Ok(pre_value) => pre_value,
-        Err(_) => return None,
-    };
-    let post_value_result = post_amount.parse::<i128>();
-    let post_value = match post_value_result {
-        Ok(post_value) => post_value,
-        Err(_) => return None,
-    };
-    let delta = if post_value >= pre_value {
-        post_value - pre_value
-    } else {
-        pre_value - post_value
-    };
-    return Some(delta.to_string());
-}
-
-fn compute_ui_delta_abs(
-    pre_amount: std::option::Option<f64>,
-    post_amount: std::option::Option<f64>,
-) -> std::option::Option<f64> {
-    let pre_amount = match pre_amount {
-        Some(pre_amount) => pre_amount,
-        None => 0.0,
-    };
-    let post_amount = match post_amount {
-        Some(post_amount) => post_amount,
-        None => 0.0,
-    };
-    let delta = if post_amount >= pre_amount {
-        post_amount - pre_amount
-    } else {
-        pre_amount - post_amount
-    };
-    return Some(delta);
-}
-
-fn compute_price_quote_per_base_from_raw_amounts_with_decimals(
-    base_amount_raw: std::option::Option<&str>,
-    quote_amount_raw: std::option::Option<&str>,
-    base_decimals: std::option::Option<u8>,
-    quote_decimals: std::option::Option<u8>,
-) -> std::option::Option<f64> {
-    let base_decimals = match base_decimals {
-        Some(base_decimals) => base_decimals,
-        None => return None,
-    };
-    let quote_decimals = match quote_decimals {
-        Some(quote_decimals) => quote_decimals,
-        None => return None,
-    };
-    let base_amount_raw = match base_amount_raw {
-        Some(base_amount_raw) => base_amount_raw.trim(),
-        None => return None,
-    };
-    let quote_amount_raw = match quote_amount_raw {
-        Some(quote_amount_raw) => quote_amount_raw.trim(),
-        None => return None,
-    };
-    if base_amount_raw.is_empty() || quote_amount_raw.is_empty() {
-        return None;
-    }
-    let base_amount_result = base_amount_raw.parse::<f64>();
-    let base_amount = match base_amount_result {
-        Ok(base_amount) => base_amount,
-        Err(_) => return None,
-    };
-    let quote_amount_result = quote_amount_raw.parse::<f64>();
-    let quote_amount = match quote_amount_result {
-        Ok(quote_amount) => quote_amount,
-        Err(_) => return None,
-    };
-    if base_amount <= 0.0 || quote_amount <= 0.0 {
-        return None;
-    }
-    let base_scale = 10_f64.powi(i32::from(base_decimals));
-    let quote_scale = 10_f64.powi(i32::from(quote_decimals));
-    if base_scale <= 0.0 || quote_scale <= 0.0 {
-        return None;
-    }
-    let base_ui_amount = base_amount / base_scale;
-    let quote_ui_amount = quote_amount / quote_scale;
-    if base_ui_amount <= 0.0 || quote_ui_amount <= 0.0 {
-        return None;
-    }
-    return Some(quote_ui_amount / base_ui_amount);
-}
-
-fn compute_price_quote_per_base_from_raw_amounts(
-    base_amount_raw: std::option::Option<&str>,
-    quote_amount_raw: std::option::Option<&str>,
-) -> std::option::Option<f64> {
-    let base_amount_raw = match base_amount_raw {
-        Some(base_amount_raw) => base_amount_raw.trim(),
-        None => return None,
-    };
-    let quote_amount_raw = match quote_amount_raw {
-        Some(quote_amount_raw) => quote_amount_raw.trim(),
-        None => return None,
-    };
-    if base_amount_raw.is_empty() || quote_amount_raw.is_empty() {
-        return None;
-    }
-    let base_amount_result = base_amount_raw.parse::<f64>();
-    let base_amount = match base_amount_result {
-        Ok(base_amount) => base_amount,
-        Err(_) => return None,
-    };
-    let quote_amount_result = quote_amount_raw.parse::<f64>();
-    let quote_amount = match quote_amount_result {
-        Ok(quote_amount) => quote_amount,
-        Err(_) => return None,
-    };
-    if base_amount <= 0.0 {
-        return None;
-    }
-    return Some(quote_amount / base_amount);
-}
-
-fn compute_price_quote_per_base_with_decimals(
-    meta_json: std::option::Option<&str>,
-    transaction_json: &str,
-    base_vault_address: std::option::Option<&str>,
-    quote_vault_address: std::option::Option<&str>,
-) -> std::option::Option<f64> {
-    let inferred_result = extract_trade_amounts_from_vault_balance_deltas(
-        transaction_json,
-        meta_json,
-        base_vault_address,
-        quote_vault_address,
-    );
-    let inferred = match inferred_result {
-        Ok(inferred) => inferred,
-        Err(_) => return None,
-    };
-    return inferred.2;
-}
-
-fn build_transaction_value_with_meta_json(
-    transaction_json: &str,
-    meta_json: std::option::Option<&str>,
-) -> Result<serde_json::Value, crate::Error> {
-    let transaction_value_result = serde_json::from_str::<serde_json::Value>(transaction_json);
-    let mut transaction_value = match transaction_value_result {
-        Ok(transaction_value) => transaction_value,
-        Err(error) => {
-            return Err(crate::Error::Json(format!(
-                "cannot parse transaction_json for pump_swap token-balance fallback: {}",
-                error
-            )));
-        },
-    };
-    let meta_json = match meta_json {
-        Some(meta_json) => meta_json,
-        None => return Ok(transaction_value),
-    };
-    let meta_value_result = serde_json::from_str::<serde_json::Value>(meta_json);
-    let meta_value = match meta_value_result {
-        Ok(meta_value) => meta_value,
-        Err(error) => {
-            return Err(crate::Error::Json(format!(
-                "cannot parse meta_json for pump_swap token-balance fallback: {}",
-                error
-            )));
-        },
-    };
-    match transaction_value.as_object_mut() {
-        Some(object) => {
-            object.insert("meta".to_string(), meta_value);
-            return Ok(transaction_value);
-        },
-        None => {},
-    }
-    return Ok(serde_json::json!({
-        "transaction": transaction_value,
-        "meta": meta_value
-    }));
-}
-
-fn convert_ui_amount_to_raw_string(
-    amount: f64,
-    decimals: std::option::Option<u8>,
-) -> std::option::Option<std::string::String> {
-    if !amount.is_finite() {
-        return None;
-    }
-    if amount <= 0.0_f64 {
-        return None;
-    }
-    let decimals = match decimals {
-        Some(decimals) => decimals,
-        None => return None,
-    };
-    let scale = 10_f64.powi(i32::from(decimals));
-    if !scale.is_finite() {
-        return None;
-    }
-    if scale <= 0.0_f64 {
-        return None;
-    }
-    let raw_amount = amount * scale;
-    if !raw_amount.is_finite() {
-        return None;
-    }
-    if raw_amount <= 0.0_f64 {
-        return None;
-    }
-    let rounded = raw_amount.round();
-    if rounded <= 0.0_f64 {
-        return None;
-    }
-    return Some(format!("{:.0}", rounded));
-}
-
-// Private PumpSwap fallback amount extracted from transaction token balance deltas.
-#[derive(Clone, Debug, PartialEq)]
-struct PumpSwapBalanceDeltaTradeAmounts {
-    base_amount: f64,
-    quote_amount: f64,
-    price_quote_per_base: f64,
-}
-
-// Private key used to match pre/post SPL token balances.
-#[derive(Clone, Debug, Eq, Ord, PartialEq, PartialOrd)]
-struct TokenBalanceDeltaKey {
-    account_index: i64,
-    mint: std::string::String,
-    owner: std::string::String,
-}
-
-// Private accumulator used while reading pre/post token balances.
-#[derive(Clone, Debug)]
-struct TokenBalanceDeltaAccumulator {
-    pre_amount: f64,
-    post_amount: f64,
-}
-
-fn try_build_pump_swap_trade_amounts_from_token_balance_deltas(
-    transaction_json: &serde_json::Value,
-    base_mint: &str,
-    quote_mint: &str,
-) -> std::option::Option<PumpSwapBalanceDeltaTradeAmounts> {
-    if base_mint.is_empty() {
-        return std::option::Option::None;
-    }
-    if quote_mint.is_empty() {
-        return std::option::Option::None;
-    }
-    if base_mint == quote_mint {
-        return std::option::Option::None;
-    }
-    let meta_json = match find_transaction_meta_json(transaction_json) {
-        std::option::Option::Some(value) => value,
-        std::option::Option::None => {
-            return std::option::Option::None;
-        },
-    };
-    let pre_token_balances = match json_array_field(meta_json, "preTokenBalances") {
-        std::option::Option::Some(value) => value,
-        std::option::Option::None => {
-            return std::option::Option::None;
-        },
-    };
-    let post_token_balances = match json_array_field(meta_json, "postTokenBalances") {
-        std::option::Option::Some(value) => value,
-        std::option::Option::None => {
-            return std::option::Option::None;
-        },
-    };
-    let mut deltas: std::collections::BTreeMap<TokenBalanceDeltaKey, TokenBalanceDeltaAccumulator> =
-        std::collections::BTreeMap::new();
-    apply_token_balance_side_to_delta_map(
-        &mut deltas,
-        pre_token_balances,
-        base_mint,
-        quote_mint,
-        true,
-    );
-    apply_token_balance_side_to_delta_map(
-        &mut deltas,
-        post_token_balances,
-        base_mint,
-        quote_mint,
-        false,
-    );
-    let mut base_amount = 0.0_f64;
-    let mut quote_amount = 0.0_f64;
-    for (key, accumulator) in &deltas {
-        let delta_abs = (accumulator.post_amount - accumulator.pre_amount).abs();
-        if !delta_abs.is_finite() {
-            continue;
-        }
-        if delta_abs <= 0.0_f64 {
-            continue;
-        }
-        if key.mint == base_mint {
-            if delta_abs > base_amount {
-                base_amount = delta_abs;
-            }
-        } else if key.mint == quote_mint && delta_abs > quote_amount {
-            quote_amount = delta_abs;
-        }
-    }
-    if !base_amount.is_finite() {
-        return std::option::Option::None;
-    }
-    if !quote_amount.is_finite() {
-        return std::option::Option::None;
-    }
-    if base_amount <= 0.0_f64 {
-        return std::option::Option::None;
-    }
-    if quote_amount <= 0.0_f64 {
-        return std::option::Option::None;
-    }
-    let price_quote_per_base = quote_amount / base_amount;
-    if !price_quote_per_base.is_finite() {
-        return std::option::Option::None;
-    }
-    if price_quote_per_base <= 0.0_f64 {
-        return std::option::Option::None;
-    }
-    return std::option::Option::Some(PumpSwapBalanceDeltaTradeAmounts {
-        base_amount,
-        quote_amount,
-        price_quote_per_base,
-    });
-}
-
-fn apply_token_balance_side_to_delta_map(
-    deltas: &mut std::collections::BTreeMap<TokenBalanceDeltaKey, TokenBalanceDeltaAccumulator>,
-    token_balances: &[serde_json::Value],
-    base_mint: &str,
-    quote_mint: &str,
-    is_pre: bool,
-) {
-    for token_balance in token_balances {
-        let mint = match json_string_field(token_balance, "mint") {
-            std::option::Option::Some(value) => value,
-            std::option::Option::None => {
-                continue;
-            },
-        };
-        if mint != base_mint && mint != quote_mint {
-            continue;
-        }
-        let account_index = match json_i64_field(token_balance, "accountIndex") {
-            std::option::Option::Some(value) => value,
-            std::option::Option::None => {
-                continue;
-            },
-        };
-        let owner = match json_string_field(token_balance, "owner") {
-            std::option::Option::Some(value) => value,
-            std::option::Option::None => std::string::String::new(),
-        };
-        let ui_amount = match token_balance_ui_amount(token_balance) {
-            std::option::Option::Some(value) => value,
-            std::option::Option::None => {
-                continue;
-            },
-        };
-        if !ui_amount.is_finite() {
-            continue;
-        }
-        let key = TokenBalanceDeltaKey { account_index, mint, owner };
-        let entry = deltas.entry(key).or_insert(TokenBalanceDeltaAccumulator {
-            pre_amount: 0.0_f64,
-            post_amount: 0.0_f64,
-        });
-        if is_pre {
-            entry.pre_amount = ui_amount;
-        } else {
-            entry.post_amount = ui_amount;
-        }
-    }
-}
-
-fn token_balance_ui_amount(token_balance: &serde_json::Value) -> std::option::Option<f64> {
-    let ui_token_amount = match json_object_field(token_balance, "uiTokenAmount") {
-        std::option::Option::Some(value) => value,
-        std::option::Option::None => {
-            return std::option::Option::None;
-        },
-    };
-    match json_f64_field(ui_token_amount, "uiAmount") {
-        std::option::Option::Some(value) => {
-            return std::option::Option::Some(value);
-        },
-        std::option::Option::None => {},
-    }
-    match json_string_field(ui_token_amount, "uiAmountString") {
-        std::option::Option::Some(value) => match value.parse::<f64>() {
-            std::result::Result::Ok(parsed) => {
-                return std::option::Option::Some(parsed);
-            },
-            std::result::Result::Err(_) => {},
-        },
-        std::option::Option::None => {},
-    }
-    let raw_amount = match json_string_field(ui_token_amount, "amount") {
-        std::option::Option::Some(value) => value,
-        std::option::Option::None => {
-            return std::option::Option::None;
-        },
-    };
-    let decimals = match json_i64_field(ui_token_amount, "decimals") {
-        std::option::Option::Some(value) => value,
-        std::option::Option::None => {
-            return std::option::Option::None;
-        },
-    };
-    if decimals < 0_i64 {
-        return std::option::Option::None;
-    }
-    if decimals > 18_i64 {
-        return std::option::Option::None;
-    }
-    let raw_amount_f64 = match raw_amount.parse::<f64>() {
-        std::result::Result::Ok(value) => value,
-        std::result::Result::Err(_) => {
-            return std::option::Option::None;
-        },
-    };
-    let divisor = 10_f64.powi(decimals as i32);
-    if divisor <= 0.0_f64 {
-        return std::option::Option::None;
-    }
-    return std::option::Option::Some(raw_amount_f64 / divisor);
-}
-
-fn find_transaction_meta_json(
-    transaction_json: &serde_json::Value,
-) -> std::option::Option<&serde_json::Value> {
-    match json_object_field(transaction_json, "meta") {
-        std::option::Option::Some(value) => {
-            return std::option::Option::Some(value);
-        },
-        std::option::Option::None => {},
-    }
-    match json_object_field(transaction_json, "transaction") {
-        std::option::Option::Some(transaction_value) => {
-            match json_object_field(transaction_value, "meta") {
-                std::option::Option::Some(value) => {
-                    return std::option::Option::Some(value);
-                },
-                std::option::Option::None => {},
-            }
-        },
-        std::option::Option::None => {},
-    }
-    match json_object_field(transaction_json, "result") {
-        std::option::Option::Some(result_value) => {
-            match json_object_field(result_value, "meta") {
-                std::option::Option::Some(value) => {
-                    return std::option::Option::Some(value);
-                },
-                std::option::Option::None => {},
-            }
-            match json_object_field(result_value, "transaction") {
-                std::option::Option::Some(transaction_value) => {
-                    match json_object_field(transaction_value, "meta") {
-                        std::option::Option::Some(value) => {
-                            return std::option::Option::Some(value);
-                        },
-                        std::option::Option::None => {},
-                    }
-                },
-                std::option::Option::None => {},
-            }
-        },
-        std::option::Option::None => {},
-    }
-    return std::option::Option::None;
-}
-
-fn json_object_field<'a>(
-    json_object_field: &'a serde_json::Value,
-    field_name: &str,
-) -> std::option::Option<&'a serde_json::Value> {
-    match json_object_field {
-        serde_json::Value::Object(object) => match object.get(field_name) {
-            std::option::Option::Some(field_value) => {
-                return std::option::Option::Some(field_value);
-            },
-            std::option::Option::None => return std::option::Option::None,
-        },
-        _ => return std::option::Option::None,
-    }
-}
-
-fn json_array_field<'a>(
-    value: &'a serde_json::Value,
-    field_name: &str,
-) -> std::option::Option<&'a [serde_json::Value]> {
-    let field_value = match json_object_field(value, field_name) {
-        std::option::Option::Some(found) => found,
-        std::option::Option::None => {
-            return std::option::Option::None;
-        },
-    };
-    match field_value {
-        serde_json::Value::Array(values) => return std::option::Option::Some(values.as_slice()),
-        _ => return std::option::Option::None,
-    }
-}
-
-fn json_string_field(
-    value: &serde_json::Value,
-    field_name: &str,
-) -> std::option::Option<std::string::String> {
-    let field_value = match json_object_field(value, field_name) {
-        std::option::Option::Some(found) => found,
-        std::option::Option::None => {
-            return std::option::Option::None;
-        },
-    };
-    match field_value {
-        serde_json::Value::String(text) => return std::option::Option::Some(text.clone()),
-        serde_json::Value::Number(number) => return std::option::Option::Some(number.to_string()),
-        _ => return std::option::Option::None,
-    }
-}
-
-fn json_i64_field(value: &serde_json::Value, field_name: &str) -> std::option::Option<i64> {
-    let field_value = match json_object_field(value, field_name) {
-        std::option::Option::Some(found) => found,
-        std::option::Option::None => {
-            return std::option::Option::None;
-        },
-    };
-    match field_value {
-        serde_json::Value::Number(number) => return number.as_i64(),
-        serde_json::Value::String(text) => match text.parse::<i64>() {
-            std::result::Result::Ok(parsed) => return std::option::Option::Some(parsed),
-            std::result::Result::Err(_) => return std::option::Option::None,
-        },
-        _ => return std::option::Option::None,
-    }
-}
-
-fn json_f64_field(value: &serde_json::Value, field_name: &str) -> std::option::Option<f64> {
-    let field_value = match json_object_field(value, field_name) {
-        std::option::Option::Some(found) => found,
-        std::option::Option::None => {
-            return std::option::Option::None;
-        },
-    };
-    match field_value {
-        serde_json::Value::Number(number) => return number.as_f64(),
-        serde_json::Value::String(text) => match text.parse::<f64>() {
-            std::result::Result::Ok(parsed) => return std::option::Option::Some(parsed),
-            std::result::Result::Err(_) => return std::option::Option::None,
-        },
-        _ => return std::option::Option::None,
-    }
-}
-
-fn resolve_pump_swap_trade_amounts_from_pool_balance_deltas(
-    meta_json: std::option::Option<&str>,
-    pool_owner: &str,
-    base_mint: &str,
-    quote_mint: &str,
-    event_kind: &str,
-    base_token_decimals: std::option::Option<u8>,
-    quote_token_decimals: std::option::Option<u8>,
-) -> Result<PumpSwapPoolBalanceDeltaResolution, crate::Error> {
-    let meta_json = match meta_json {
-        Some(meta_json) => meta_json,
-        None => return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData),
-    };
-    let pool_owner = pool_owner.trim();
-    let base_mint = base_mint.trim();
-    let quote_mint = quote_mint.trim();
-    if pool_owner.is_empty() || base_mint.is_empty() || quote_mint.is_empty() {
-        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
-    }
-    if base_mint == quote_mint {
-        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
-    }
-    let meta_value_result = serde_json::from_str::<serde_json::Value>(meta_json);
-    let meta_value = match meta_value_result {
-        Ok(meta_value) => meta_value,
-        Err(error) => {
-            return Err(crate::Error::Json(format!(
-                "cannot parse meta_json for pump_swap pool-owner balance delta extraction: {}",
-                error
-            )));
-        },
-    };
-    let base_pre = sum_token_balance_raw_amount_by_owner_and_mint(
-        &meta_value,
-        "preTokenBalances",
-        pool_owner,
-        base_mint,
-    );
-    let base_post = sum_token_balance_raw_amount_by_owner_and_mint(
-        &meta_value,
-        "postTokenBalances",
-        pool_owner,
-        base_mint,
-    );
-    let quote_pre = sum_token_balance_raw_amount_by_owner_and_mint(
-        &meta_value,
-        "preTokenBalances",
-        pool_owner,
-        quote_mint,
-    );
-    let quote_post = sum_token_balance_raw_amount_by_owner_and_mint(
-        &meta_value,
-        "postTokenBalances",
-        pool_owner,
-        quote_mint,
-    );
-    if base_pre.is_none() && base_post.is_none() {
-        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
-    }
-    if quote_pre.is_none() && quote_post.is_none() {
-        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
-    }
-    let base_pre_raw = token_balance_raw_amount_value(base_pre.as_ref());
-    let base_post_raw = token_balance_raw_amount_value(base_post.as_ref());
-    let quote_pre_raw = token_balance_raw_amount_value(quote_pre.as_ref());
-    let quote_post_raw = token_balance_raw_amount_value(quote_post.as_ref());
-    let base_delta = base_post_raw - base_pre_raw;
-    let quote_delta = quote_post_raw - quote_pre_raw;
-    if base_delta == 0 || quote_delta == 0 {
-        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
-    }
-    let pool_delta_side = if base_delta < 0 && quote_delta > 0 {
-        crate::SwapTradeSide::BuyBase
-    } else if base_delta > 0 && quote_delta < 0 {
-        crate::SwapTradeSide::SellBase
-    } else {
-        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
-    };
-    let event_side = trade_side_from_event_kind(event_kind);
-    if event_side != pool_delta_side {
-        return Ok(PumpSwapPoolBalanceDeltaResolution::DirectionMismatch);
-    }
-    let base_amount_abs = i128_abs(base_delta);
-    let quote_amount_abs = i128_abs(quote_delta);
-    if base_amount_abs <= 0 || quote_amount_abs <= 0 {
-        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
-    }
-    let base_decimals = first_some_u8(
-        base_token_decimals,
-        first_token_balance_decimals(base_pre.as_ref(), base_post.as_ref()),
-    );
-    let quote_decimals = first_some_u8(
-        quote_token_decimals,
-        first_token_balance_decimals(quote_pre.as_ref(), quote_post.as_ref()),
-    );
-    let price_quote_per_base = compute_price_quote_per_base_from_i128_raw_amounts_with_decimals(
-        base_amount_abs,
-        quote_amount_abs,
-        base_decimals,
-        quote_decimals,
-    );
-    let price_quote_per_base = match price_quote_per_base {
-        Some(price_quote_per_base) => price_quote_per_base,
-        None => return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData),
-    };
-    return Ok(PumpSwapPoolBalanceDeltaResolution::Matched(PumpSwapPoolBalanceDeltaAmounts {
-        base_amount_raw: base_amount_abs.to_string(),
-        quote_amount_raw: quote_amount_abs.to_string(),
-        price_quote_per_base,
-    }));
-}
-
-fn sum_token_balance_raw_amount_by_owner_and_mint(
-    meta_value: &serde_json::Value,
-    field_name: &str,
-    owner: &str,
-    mint: &str,
-) -> std::option::Option<TokenBalanceRawAmount> {
-    let balances_value = match json_array_field(meta_value, field_name) {
-        std::option::Option::Some(balances_value) => balances_value,
-        std::option::Option::None => return std::option::Option::None,
-    };
-    let mut total = 0_i128;
-    let mut found = false;
-    let mut decimals = std::option::Option::None;
-    for balance in balances_value {
-        let balance_mint = match json_string_field(balance, "mint") {
-            std::option::Option::Some(balance_mint) => balance_mint,
-            std::option::Option::None => continue,
-        };
-        if balance_mint != mint {
-            continue;
-        }
-        let balance_owner = match json_string_field(balance, "owner") {
-            std::option::Option::Some(balance_owner) => balance_owner,
-            std::option::Option::None => continue,
-        };
-        if balance_owner != owner {
-            continue;
-        }
-        let ui_token_amount = match json_object_field(balance, "uiTokenAmount") {
-            std::option::Option::Some(ui_token_amount) => ui_token_amount,
-            std::option::Option::None => continue,
-        };
-        let amount_text = match json_string_field(ui_token_amount, "amount") {
-            std::option::Option::Some(amount_text) => amount_text,
-            std::option::Option::None => continue,
-        };
-        let amount_result = amount_text.parse::<i128>();
-        let amount = match amount_result {
-            std::result::Result::Ok(amount) => amount,
-            std::result::Result::Err(_) => continue,
-        };
-        total += amount;
-        found = true;
-        if decimals.is_none() {
-            let decimals_i64 = match json_i64_field(ui_token_amount, "decimals") {
-                std::option::Option::Some(decimals_i64) => decimals_i64,
-                std::option::Option::None => continue,
-            };
-            let decimals_u8 = match u8::try_from(decimals_i64) {
-                std::result::Result::Ok(decimals_u8) => decimals_u8,
-                std::result::Result::Err(_) => continue,
-            };
-            decimals = std::option::Option::Some(decimals_u8);
-        }
-    }
-    if !found {
-        return std::option::Option::None;
-    }
-    return std::option::Option::Some(TokenBalanceRawAmount { raw_amount: total, decimals });
-}
-
-fn token_balance_raw_amount_value(value: std::option::Option<&TokenBalanceRawAmount>) -> i128 {
-    match value {
-        std::option::Option::Some(value) => return value.raw_amount,
-        std::option::Option::None => return 0_i128,
-    }
-}
-
-fn first_token_balance_decimals(
-    left: std::option::Option<&TokenBalanceRawAmount>,
-    right: std::option::Option<&TokenBalanceRawAmount>,
-) -> std::option::Option<u8> {
-    if let std::option::Option::Some(left) = left {
-        if left.decimals.is_some() {
-            return left.decimals;
-        }
-    }
-    if let std::option::Option::Some(right) = right {
-        return right.decimals;
-    }
-    return std::option::Option::None;
-}
-
-fn first_some_u8(
-    left: std::option::Option<u8>,
-    right: std::option::Option<u8>,
-) -> std::option::Option<u8> {
-    match left {
-        std::option::Option::Some(left) => return std::option::Option::Some(left),
-        std::option::Option::None => return right,
-    }
-}
-
-fn trade_side_from_event_kind(event_kind: &str) -> crate::SwapTradeSide {
-    if event_kind.ends_with(".buy") {
-        return crate::SwapTradeSide::BuyBase;
-    }
-    if event_kind.ends_with(".sell") {
-        return crate::SwapTradeSide::SellBase;
-    }
-    return crate::SwapTradeSide::Unknown;
-}
-
-fn i128_abs(i128_abs: i128) -> i128 {
-    if i128_abs < 0_i128 {
-        return -i128_abs;
-    }
-    return i128_abs;
-}
-
-fn compute_price_quote_per_base_from_i128_raw_amounts_with_decimals(
-    base_amount_raw: i128,
-    quote_amount_raw: i128,
-    base_decimals: std::option::Option<u8>,
-    quote_decimals: std::option::Option<u8>,
-) -> std::option::Option<f64> {
-    if base_amount_raw <= 0_i128 || quote_amount_raw <= 0_i128 {
-        return std::option::Option::None;
-    }
-    let base_decimals = match base_decimals {
-        std::option::Option::Some(base_decimals) => base_decimals,
-        std::option::Option::None => return std::option::Option::None,
-    };
-    let quote_decimals = match quote_decimals {
-        std::option::Option::Some(quote_decimals) => quote_decimals,
-        std::option::Option::None => return std::option::Option::None,
-    };
-    let base_scale = 10_f64.powi(i32::from(base_decimals));
-    let quote_scale = 10_f64.powi(i32::from(quote_decimals));
-    if !base_scale.is_finite() || !quote_scale.is_finite() {
-        return std::option::Option::None;
-    }
-    if base_scale <= 0.0_f64 || quote_scale <= 0.0_f64 {
-        return std::option::Option::None;
-    }
-    let base_amount = base_amount_raw as f64 / base_scale;
-    let quote_amount = quote_amount_raw as f64 / quote_scale;
-    if !base_amount.is_finite() || !quote_amount.is_finite() {
-        return std::option::Option::None;
-    }
-    if base_amount <= 0.0_f64 || quote_amount <= 0.0_f64 {
-        return std::option::Option::None;
-    }
-    let price_quote_per_base = quote_amount / base_amount;
-    if !price_quote_per_base.is_finite() {
-        return std::option::Option::None;
-    }
-    if price_quote_per_base <= 0.0_f64 {
-        return std::option::Option::None;
-    }
-    return std::option::Option::Some(price_quote_per_base);
-}
-
 #[cfg(test)]
 mod tests {
     async fn make_database() -> std::sync::Arc<crate::Database> {
@@ -2624,423 +370,4 @@ mod tests {
         };
         assert_eq!(pair_metric.trade_count, 1);
     }
-
-    #[test]
-    fn is_priced_trade_event_rejects_unpriced_values() {
-        let result = super::is_priced_trade_event(None, Some("2500"), Some(2.5));
-        assert!(!result);
-        let result = super::is_priced_trade_event(Some("1000"), None, Some(2.5));
-        assert!(!result);
-        let result = super::is_priced_trade_event(Some("1000"), Some("2500"), None);
-        assert!(!result);
-        let result = super::is_priced_trade_event(Some("0"), Some("2500"), Some(2.5));
-        assert!(!result);
-        let result = super::is_priced_trade_event(Some("1000"), Some("0"), Some(2.5));
-        assert!(!result);
-        let result = super::is_priced_trade_event(Some("-1"), Some("2500"), Some(2.5));
-        assert!(!result);
-        let result = super::is_priced_trade_event(Some("1000"), Some("-1"), Some(2.5));
-        assert!(!result);
-        let result = super::is_priced_trade_event(Some("abc"), Some("2500"), Some(2.5));
-        assert!(!result);
-        let result = super::is_priced_trade_event(Some("1000"), Some("abc"), Some(2.5));
-        assert!(!result);
-        let result = super::is_priced_trade_event(Some("1000"), Some("2500"), Some(0.0));
-        assert!(!result);
-        let result = super::is_priced_trade_event(Some("1000"), Some("2500"), Some(f64::NAN));
-        assert!(!result);
-    }
-
-    #[test]
-    fn pump_swap_balance_delta_amounts_are_recovered_from_meta() {
-        let transaction_json = serde_json::json!({
-            "meta": {
-                "preTokenBalances": [
-                    {
-                        "accountIndex": 1,
-                        "mint": "BASE111",
-                        "owner": "owner_a",
-                        "uiTokenAmount": {
-                            "uiAmount": 10.0,
-                            "uiAmountString": "10",
-                            "decimals": 6,
-                            "amount": "10000000"
-                        }
-                    },
-                    {
-                        "accountIndex": 2,
-                        "mint": "QUOTE111",
-                        "owner": "owner_b",
-                        "uiTokenAmount": {
-                            "uiAmount": 2.0,
-                            "uiAmountString": "2",
-                            "decimals": 9,
-                            "amount": "2000000000"
-                        }
-                    }
-                ],
-                "postTokenBalances": [
-                    {
-                        "accountIndex": 1,
-                        "mint": "BASE111",
-                        "owner": "owner_a",
-                        "uiTokenAmount": {
-                            "uiAmount": 15.0,
-                            "uiAmountString": "15",
-                            "decimals": 6,
-                            "amount": "15000000"
-                        }
-                    },
-                    {
-                        "accountIndex": 2,
-                        "mint": "QUOTE111",
-                        "owner": "owner_b",
-                        "uiTokenAmount": {
-                            "uiAmount": 1.5,
-                            "uiAmountString": "1.5",
-                            "decimals": 9,
-                            "amount": "1500000000"
-                        }
-                    }
-                ]
-            }
-        });
-        let amounts = match super::try_build_pump_swap_trade_amounts_from_token_balance_deltas(
-            &transaction_json,
-            "BASE111",
-            "QUOTE111",
-        ) {
-            std::option::Option::Some(value) => value,
-            std::option::Option::None => {
-                panic!("expected pump_swap balance delta amounts");
-            },
-        };
-        assert_eq!(amounts.base_amount, 5.0_f64);
-        assert_eq!(amounts.quote_amount, 0.5_f64);
-        assert_eq!(amounts.price_quote_per_base, 0.1_f64);
-    }
-
-    #[test]
-    fn pump_swap_balance_delta_amounts_use_raw_amount_when_ui_amount_is_null() {
-        let transaction_json = serde_json::json!({
-            "meta": {
-                "preTokenBalances": [
-                    {
-                        "accountIndex": 1,
-                        "mint": "BASE111",
-                        "owner": "owner_a",
-                        "uiTokenAmount": {
-                            "uiAmount": null,
-                            "decimals": 6,
-                            "amount": "10000000"
-                        }
-                    },
-                    {
-                        "accountIndex": 2,
-                        "mint": "QUOTE111",
-                        "owner": "owner_b",
-                        "uiTokenAmount": {
-                            "uiAmount": null,
-                            "decimals": 9,
-                            "amount": "2000000000"
-                        }
-                    }
-                ],
-                "postTokenBalances": [
-                    {
-                        "accountIndex": 1,
-                        "mint": "BASE111",
-                        "owner": "owner_a",
-                        "uiTokenAmount": {
-                            "uiAmount": null,
-                            "decimals": 6,
-                            "amount": "15000000"
-                        }
-                    },
-                    {
-                        "accountIndex": 2,
-                        "mint": "QUOTE111",
-                        "owner": "owner_b",
-                        "uiTokenAmount": {
-                            "uiAmount": null,
-                            "decimals": 9,
-                            "amount": "1500000000"
-                        }
-                    }
-                ]
-            }
-        });
-        let amounts = match super::try_build_pump_swap_trade_amounts_from_token_balance_deltas(
-            &transaction_json,
-            "BASE111",
-            "QUOTE111",
-        ) {
-            std::option::Option::Some(value) => value,
-            std::option::Option::None => {
-                panic!("expected pump_swap balance delta amounts");
-            },
-        };
-        assert_eq!(amounts.base_amount, 5.0_f64);
-        assert_eq!(amounts.quote_amount, 0.5_f64);
-        assert_eq!(amounts.price_quote_per_base, 0.1_f64);
-    }
-
-    #[test]
-    fn pump_swap_balance_delta_amounts_return_none_when_base_delta_is_zero() {
-        let transaction_json = serde_json::json!({
-            "meta": {
-                "preTokenBalances": [
-                    {
-                        "accountIndex": 1,
-                        "mint": "BASE111",
-                        "owner": "owner_a",
-                        "uiTokenAmount": {
-                            "uiAmount": 10.0,
-                            "uiAmountString": "10",
-                            "decimals": 6,
-                            "amount": "10000000"
-                        }
-                    },
-                    {
-                        "accountIndex": 2,
-                        "mint": "QUOTE111",
-                        "owner": "owner_b",
-                        "uiTokenAmount": {
-                            "uiAmount": 2.0,
-                            "uiAmountString": "2",
-                            "decimals": 9,
-                            "amount": "2000000000"
-                        }
-                    }
-                ],
-                "postTokenBalances": [
-                    {
-                        "accountIndex": 1,
-                        "mint": "BASE111",
-                        "owner": "owner_a",
-                        "uiTokenAmount": {
-                            "uiAmount": 10.0,
-                            "uiAmountString": "10",
-                            "decimals": 6,
-                            "amount": "10000000"
-                        }
-                    },
-                    {
-                        "accountIndex": 2,
-                        "mint": "QUOTE111",
-                        "owner": "owner_b",
-                        "uiTokenAmount": {
-                            "uiAmount": 1.5,
-                            "uiAmountString": "1.5",
-                            "decimals": 9,
-                            "amount": "1500000000"
-                        }
-                    }
-                ]
-            }
-        });
-        let amounts = super::try_build_pump_swap_trade_amounts_from_token_balance_deltas(
-            &transaction_json,
-            "BASE111",
-            "QUOTE111",
-        );
-        assert_eq!(amounts, std::option::Option::None);
-    }
-
-    #[test]
-    fn pump_swap_pool_owner_delta_accepts_buy_direction() {
-        let meta_json = serde_json::json!({
-            "preTokenBalances": [
-                {
-                    "accountIndex": 1,
-                    "mint": "BASE111",
-                    "owner": "Pool111",
-                    "uiTokenAmount": {
-                        "amount": "7967771862",
-                        "decimals": 9
-                    }
-                },
-                {
-                    "accountIndex": 2,
-                    "mint": "QUOTE111",
-                    "owner": "Pool111",
-                    "uiTokenAmount": {
-                        "amount": "8970607",
-                        "decimals": 9
-                    }
-                }
-            ],
-            "postTokenBalances": [
-                {
-                    "accountIndex": 1,
-                    "mint": "BASE111",
-                    "owner": "Pool111",
-                    "uiTokenAmount": {
-                        "amount": "7573340642",
-                        "decimals": 9
-                    }
-                },
-                {
-                    "accountIndex": 2,
-                    "mint": "QUOTE111",
-                    "owner": "Pool111",
-                    "uiTokenAmount": {
-                        "amount": "9438980",
-                        "decimals": 9
-                    }
-                }
-            ]
-        });
-        let meta_json_text = meta_json.to_string();
-        let result = super::resolve_pump_swap_trade_amounts_from_pool_balance_deltas(
-            Some(meta_json_text.as_str()),
-            "Pool111",
-            "BASE111",
-            "QUOTE111",
-            "pump_swap.buy",
-            Some(9),
-            Some(9),
-        );
-        let resolution = match result {
-            Ok(resolution) => resolution,
-            Err(error) => panic!("pump_swap delta resolution must succeed: {}", error),
-        };
-        match resolution {
-            super::PumpSwapPoolBalanceDeltaResolution::Matched(amounts) => {
-                assert_eq!(amounts.base_amount_raw, "394431220");
-                assert_eq!(amounts.quote_amount_raw, "468373");
-                assert!(amounts.price_quote_per_base > 0.00118);
-                assert!(amounts.price_quote_per_base < 0.00119);
-            },
-            _ => panic!("expected matched pump_swap buy delta"),
-        }
-    }
-
-    #[test]
-    fn pump_swap_pool_owner_delta_rejects_wrong_direction() {
-        let meta_json = serde_json::json!({
-            "preTokenBalances": [
-                {
-                    "accountIndex": 1,
-                    "mint": "BASE111",
-                    "owner": "Pool111",
-                    "uiTokenAmount": {
-                        "amount": "7967771862",
-                        "decimals": 9
-                    }
-                },
-                {
-                    "accountIndex": 2,
-                    "mint": "QUOTE111",
-                    "owner": "Pool111",
-                    "uiTokenAmount": {
-                        "amount": "8970607",
-                        "decimals": 9
-                    }
-                }
-            ],
-            "postTokenBalances": [
-                {
-                    "accountIndex": 1,
-                    "mint": "BASE111",
-                    "owner": "Pool111",
-                    "uiTokenAmount": {
-                        "amount": "7573340642",
-                        "decimals": 9
-                    }
-                },
-                {
-                    "accountIndex": 2,
-                    "mint": "QUOTE111",
-                    "owner": "Pool111",
-                    "uiTokenAmount": {
-                        "amount": "9438980",
-                        "decimals": 9
-                    }
-                }
-            ]
-        });
-        let meta_json_text = meta_json.to_string();
-        let result = super::resolve_pump_swap_trade_amounts_from_pool_balance_deltas(
-            Some(meta_json_text.as_str()),
-            "Pool111",
-            "BASE111",
-            "QUOTE111",
-            "pump_swap.sell",
-            Some(9),
-            Some(9),
-        );
-        let resolution = match result {
-            Ok(resolution) => resolution,
-            Err(error) => panic!("pump_swap delta resolution must succeed: {}", error),
-        };
-        match resolution {
-            super::PumpSwapPoolBalanceDeltaResolution::DirectionMismatch => {},
-            _ => panic!("expected pump_swap direction mismatch"),
-        }
-    }
-
-    #[test]
-    fn pump_swap_pool_owner_delta_ignores_non_pool_owner() {
-        let meta_json = serde_json::json!({
-            "preTokenBalances": [
-                {
-                    "accountIndex": 1,
-                    "mint": "BASE111",
-                    "owner": "OtherOwner111",
-                    "uiTokenAmount": {
-                        "amount": "1000",
-                        "decimals": 6
-                    }
-                },
-                {
-                    "accountIndex": 2,
-                    "mint": "QUOTE111",
-                    "owner": "OtherOwner111",
-                    "uiTokenAmount": {
-                        "amount": "2000",
-                        "decimals": 6
-                    }
-                }
-            ],
-            "postTokenBalances": [
-                {
-                    "accountIndex": 1,
-                    "mint": "BASE111",
-                    "owner": "OtherOwner111",
-                    "uiTokenAmount": {
-                        "amount": "900",
-                        "decimals": 6
-                    }
-                },
-                {
-                    "accountIndex": 2,
-                    "mint": "QUOTE111",
-                    "owner": "OtherOwner111",
-                    "uiTokenAmount": {
-                        "amount": "2100",
-                        "decimals": 6
-                    }
-                }
-            ]
-        });
-        let meta_json_text = meta_json.to_string();
-        let result = super::resolve_pump_swap_trade_amounts_from_pool_balance_deltas(
-            Some(meta_json_text.as_str()),
-            "Pool111",
-            "BASE111",
-            "QUOTE111",
-            "pump_swap.buy",
-            Some(6),
-            Some(6),
-        );
-        let resolution = match result {
-            Ok(resolution) => resolution,
-            Err(error) => panic!("pump_swap delta resolution must succeed: {}", error),
-        };
-        match resolution {
-            super::PumpSwapPoolBalanceDeltaResolution::MissingData => {},
-            _ => panic!("expected missing data for non-pool owner"),
-        }
-    }
 }
diff --git a/kb_lib/src/trade_aggregation_context.rs b/kb_lib/src/trade_aggregation_context.rs
new file mode 100644
index 0000000..901d5d6
--- /dev/null
+++ b/kb_lib/src/trade_aggregation_context.rs
@@ -0,0 +1,216 @@
+// file: kb_lib/src/trade_aggregation_context.rs
+
+//! Database context loading for trade aggregation.
+//!
+//! This module resolves the normalized database context required by
+//! `TradeAggregationService`: transaction, decoded events, pool, pair,
+//! base/quote token metadata and pool token vault addresses.
+
+/// Transaction-level context used by trade aggregation.
+pub(crate) struct TradeAggregationTransactionContext {
+    /// Persisted transaction row.
+    pub(crate) transaction: crate::ChainTransactionDto,
+    /// Internal transaction id.
+    pub(crate) transaction_id: i64,
+    /// Decoded DEX events attached to the transaction.
+    pub(crate) decoded_events: std::vec::Vec<crate::DexDecodedEventDto>,
+}
+
+/// Decoded-event-level context used by trade aggregation.
+pub(crate) struct TradeAggregationDecodedEventContext {
+    /// Internal decoded event id.
+    pub(crate) decoded_event_id: i64,
+    /// Existing trade event, when this decoded event was already materialized.
+    pub(crate) existing_trade_event: std::option::Option<crate::TradeEventDto>,
+    /// Pool account address from the decoded event.
+    pub(crate) pool_address: std::string::String,
+    /// Persisted pool row.
+    pub(crate) pool: crate::PoolDto,
+    /// Internal pool id.
+    pub(crate) pool_id: i64,
+    /// Persisted pair row.
+    pub(crate) pair: crate::PairDto,
+    /// Internal pair id.
+    pub(crate) pair_id: i64,
+    /// Base token mint, when the token row exists.
+    pub(crate) base_token_mint: std::option::Option<std::string::String>,
+    /// Base token decimals, when known.
+    pub(crate) base_token_decimals: std::option::Option<u8>,
+    /// Quote token mint, when the token row exists.
+    pub(crate) quote_token_mint: std::option::Option<std::string::String>,
+    /// Quote token decimals, when known.
+    pub(crate) quote_token_decimals: std::option::Option<u8>,
+    /// Base token vault address, when known.
+    pub(crate) base_vault_address: std::option::Option<std::string::String>,
+    /// Quote token vault address, when known.
+    pub(crate) quote_vault_address: std::option::Option<std::string::String>,
+}
+
+/// Loads a transaction and its decoded DEX events from one signature.
+pub(crate) async fn load_trade_aggregation_transaction_context(
+    database: &crate::Database,
+    signature: &str,
+) -> Result<crate::trade_aggregation_context::TradeAggregationTransactionContext, crate::Error> {
+    let transaction_result =
+        crate::query_chain_transactions_get_by_signature(database, signature).await;
+    let transaction_option = match transaction_result {
+        Ok(transaction_option) => transaction_option,
+        Err(error) => return Err(error),
+    };
+    let transaction = match transaction_option {
+        Some(transaction) => transaction,
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "cannot aggregate trades for unknown transaction '{}'",
+                signature
+            )));
+        },
+    };
+    let transaction_id = match transaction.id {
+        Some(transaction_id) => transaction_id,
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "transaction '{}' has no internal id",
+                signature
+            )));
+        },
+    };
+    let decoded_events_result =
+        crate::query_dex_decoded_events_list_by_transaction_id(database, transaction_id).await;
+    let decoded_events = match decoded_events_result {
+        Ok(decoded_events) => decoded_events,
+        Err(error) => return Err(error),
+    };
+    return Ok(crate::trade_aggregation_context::TradeAggregationTransactionContext {
+        transaction,
+        transaction_id,
+        decoded_events,
+    });
+}
+
+/// Loads the normalized DB context for one decoded event.
+///
+/// Returns `Ok(None)` when the decoded event is not materializable yet:
+/// missing pool account, pool row or pair row.
+pub(crate) async fn load_trade_aggregation_decoded_event_context(
+    database: &crate::Database,
+    decoded_event: &crate::DexDecodedEventDto,
+) -> Result<
+    std::option::Option<crate::trade_aggregation_context::TradeAggregationDecodedEventContext>,
+    crate::Error,
+> {
+    let decoded_event_id = match decoded_event.id {
+        Some(decoded_event_id) => decoded_event_id,
+        None => {
+            return Err(crate::Error::InvalidState("decoded event has no internal id".to_string()));
+        },
+    };
+    let existing_trade_result =
+        crate::query_trade_events_get_by_decoded_event_id(database, decoded_event_id).await;
+    let existing_trade_event = match existing_trade_result {
+        Ok(existing_trade_event) => existing_trade_event,
+        Err(error) => return Err(error),
+    };
+    let pool_address = match decoded_event.pool_account.clone() {
+        Some(pool_address) => pool_address,
+        None => return Ok(None),
+    };
+    let pool_result = crate::query_pools_get_by_address(database, pool_address.as_str()).await;
+    let pool_option = match pool_result {
+        Ok(pool_option) => pool_option,
+        Err(error) => return Err(error),
+    };
+    let pool = match pool_option {
+        Some(pool) => pool,
+        None => return Ok(None),
+    };
+    let pool_id = match pool.id {
+        Some(pool_id) => pool_id,
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "pool '{}' has no internal id",
+                pool.address
+            )));
+        },
+    };
+    let pair_result = crate::query_pairs_get_by_pool_id(database, pool_id).await;
+    let pair_option = match pair_result {
+        Ok(pair_option) => pair_option,
+        Err(error) => return Err(error),
+    };
+    let pair = match pair_option {
+        Some(pair) => pair,
+        None => return Ok(None),
+    };
+    let pair_id = match pair.id {
+        Some(pair_id) => pair_id,
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "pair for pool '{}' has no internal id",
+                pool_id
+            )));
+        },
+    };
+    let base_token_result = crate::query_tokens_get_by_id(database, pair.base_token_id).await;
+    let (base_token_mint, base_token_decimals) = match base_token_result {
+        Ok(Some(token)) => (Some(token.mint), token.decimals),
+        Ok(None) => (None, None),
+        Err(error) => return Err(error),
+    };
+    let quote_token_result = crate::query_tokens_get_by_id(database, pair.quote_token_id).await;
+    let (quote_token_mint, quote_token_decimals) = match quote_token_result {
+        Ok(Some(token)) => (Some(token.mint), token.decimals),
+        Ok(None) => (None, None),
+        Err(error) => return Err(error),
+    };
+    let pool_tokens_result = crate::query_pool_tokens_list_by_pool_id(database, pool_id).await;
+    let pool_tokens = match pool_tokens_result {
+        Ok(pool_tokens) => pool_tokens,
+        Err(error) => return Err(error),
+    };
+    let base_vault_address =
+        crate::trade_aggregation_context::find_pool_token_vault_address_by_token_id(
+            &pool_tokens,
+            pair.base_token_id,
+        );
+    let quote_vault_address =
+        crate::trade_aggregation_context::find_pool_token_vault_address_by_token_id(
+            &pool_tokens,
+            pair.quote_token_id,
+        );
+    return Ok(Some(crate::trade_aggregation_context::TradeAggregationDecodedEventContext {
+        decoded_event_id,
+        existing_trade_event,
+        pool_address,
+        pool,
+        pool_id,
+        pair,
+        pair_id,
+        base_token_mint,
+        base_token_decimals,
+        quote_token_mint,
+        quote_token_decimals,
+        base_vault_address,
+        quote_vault_address,
+    }));
+}
+
+fn find_pool_token_vault_address_by_token_id(
+    pool_tokens: &[crate::PoolTokenDto],
+    token_id: i64,
+) -> std::option::Option<std::string::String> {
+    for pool_token in pool_tokens {
+        if pool_token.token_id != token_id {
+            continue;
+        }
+        let vault_address = match pool_token.vault_address.clone() {
+            Some(vault_address) => vault_address.trim().to_string(),
+            None => continue,
+        };
+        if vault_address.is_empty() {
+            continue;
+        }
+        return Some(vault_address);
+    }
+    return None;
+}
diff --git a/kb_lib/src/trade_amount_resolution.rs b/kb_lib/src/trade_amount_resolution.rs
new file mode 100644
index 0000000..070b952
--- /dev/null
+++ b/kb_lib/src/trade_amount_resolution.rs
@@ -0,0 +1,650 @@
+// file: kb_lib/src/trade_amount_resolution.rs
+
+//! Trade amount resolution orchestration.
+//!
+//! This module resolves base/quote raw amounts and quote/base price for one
+//! decoded trade candidate by applying protocol-specific and generic fallback
+//! strategies in deterministic order.
+
+/// Input context required to resolve trade amounts.
+pub(crate) struct TradeAmountResolutionInput<'a> {
+    /// Database connection.
+    pub(crate) database: &'a crate::Database,
+    /// Persisted transaction row.
+    pub(crate) transaction: &'a crate::ChainTransactionDto,
+    /// Decoded DEX event row.
+    pub(crate) decoded_event: &'a crate::DexDecodedEventDto,
+    /// Decoded event payload.
+    pub(crate) payload: &'a serde_json::Value,
+    /// Pool account address.
+    pub(crate) pool_address: &'a str,
+    /// Base token mint, when known.
+    pub(crate) base_token_mint: std::option::Option<&'a str>,
+    /// Quote token mint, when known.
+    pub(crate) quote_token_mint: std::option::Option<&'a str>,
+    /// Base token decimals, when known.
+    pub(crate) base_token_decimals: std::option::Option<u8>,
+    /// Quote token decimals, when known.
+    pub(crate) quote_token_decimals: std::option::Option<u8>,
+    /// Base token vault address, when known.
+    pub(crate) base_vault_address: std::option::Option<&'a str>,
+    /// Quote token vault address, when known.
+    pub(crate) quote_vault_address: std::option::Option<&'a str>,
+}
+
+/// Resolved raw trade amounts and quote/base price.
+#[derive(Debug, Clone)]
+pub(crate) struct TradeAmountResolution {
+    /// Base amount in raw token units.
+    pub(crate) base_amount_raw: std::option::Option<std::string::String>,
+    /// Quote amount in raw token units.
+    pub(crate) quote_amount_raw: std::option::Option<std::string::String>,
+    /// Quote/base price.
+    pub(crate) price_quote_per_base: std::option::Option<f64>,
+}
+
+/// Resolves trade amounts from payload and protocol-specific fallbacks.
+pub(crate) async fn resolve_trade_amounts(
+    input: &crate::trade_amount_resolution::TradeAmountResolutionInput<'_>,
+) -> Result<crate::trade_amount_resolution::TradeAmountResolution, crate::Error> {
+    let mut base_amount_raw = crate::trade_amount_resolution::extract_amount_string(
+        input.payload,
+        &["baseAmountRaw", "base_amount_raw", "baseAmount", "amountBase", "amountInBase"],
+    );
+    let mut quote_amount_raw = crate::trade_amount_resolution::extract_amount_string(
+        input.payload,
+        &[
+            "quoteAmountRaw",
+            "quote_amount_raw",
+            "quoteAmount",
+            "amountQuote",
+            "amountOutQuote",
+        ],
+    );
+    let mut price_quote_per_base = None;
+    if input.decoded_event.event_kind.starts_with("pump_swap.")
+        && (base_amount_raw.is_none()
+            || quote_amount_raw.is_none()
+            || price_quote_per_base.is_none())
+    {
+        let resolution_result = crate::trade_amount_resolution::apply_pump_swap_amount_fallbacks(
+            input,
+            &mut base_amount_raw,
+            &mut quote_amount_raw,
+            &mut price_quote_per_base,
+        )
+        .await;
+        if let Err(error) = resolution_result {
+            return Err(error);
+        }
+    }
+    if input.decoded_event.event_kind.starts_with("pump_fun.")
+        && (base_amount_raw.is_none()
+            || quote_amount_raw.is_none()
+            || price_quote_per_base.is_none())
+    {
+        let resolution_result = crate::trade_amount_resolution::apply_pump_fun_amount_fallback(
+            input,
+            &mut base_amount_raw,
+            &mut quote_amount_raw,
+            &mut price_quote_per_base,
+        );
+        if let Err(error) = resolution_result {
+            return Err(error);
+        }
+    }
+    if (input.decoded_event.event_kind.starts_with("raydium_cpmm.")
+        || input.decoded_event.event_kind.starts_with("raydium_clmm."))
+        && (base_amount_raw.is_none()
+            || quote_amount_raw.is_none()
+            || price_quote_per_base.is_none())
+    {
+        let resolution_result =
+            crate::trade_amount_resolution::apply_raydium_instruction_amount_fallback(
+                input,
+                &mut base_amount_raw,
+                &mut quote_amount_raw,
+                &mut price_quote_per_base,
+            )
+            .await;
+        if let Err(error) = resolution_result {
+            return Err(error);
+        }
+    }
+    if input.decoded_event.event_kind.starts_with("raydium_cpmm.")
+        && (base_amount_raw.is_none() || quote_amount_raw.is_none())
+    {
+        let resolution_result = crate::trade_amount_resolution::apply_vault_balance_delta_fallback(
+            input,
+            input.base_vault_address,
+            input.quote_vault_address,
+            &mut base_amount_raw,
+            &mut quote_amount_raw,
+            &mut price_quote_per_base,
+        );
+        if let Err(error) = resolution_result {
+            return Err(error);
+        }
+    }
+    if input.decoded_event.event_kind.starts_with("raydium_clmm.")
+        && (base_amount_raw.is_none() || quote_amount_raw.is_none())
+    {
+        let resolution_result = crate::trade_amount_resolution::apply_vault_balance_delta_fallback(
+            input,
+            input.base_vault_address,
+            input.quote_vault_address,
+            &mut base_amount_raw,
+            &mut quote_amount_raw,
+            &mut price_quote_per_base,
+        );
+        if let Err(error) = resolution_result {
+            return Err(error);
+        }
+    }
+    if price_quote_per_base.is_none() {
+        price_quote_per_base =
+            crate::trade_metric_update::compute_price_quote_per_base_from_raw_amounts_with_decimals(
+                base_amount_raw.as_deref(),
+                quote_amount_raw.as_deref(),
+                input.base_token_decimals,
+                input.quote_token_decimals,
+            );
+    }
+    if price_quote_per_base.is_none() {
+        price_quote_per_base =
+            crate::trade_solana_amounts::compute_price_quote_per_base_with_decimals(
+                input.transaction.meta_json.as_deref(),
+                input.transaction.transaction_json.as_str(),
+                input.base_vault_address,
+                input.quote_vault_address,
+            );
+    }
+    if price_quote_per_base.is_none() {
+        price_quote_per_base =
+            crate::trade_metric_update::compute_price_quote_per_base_from_raw_amounts(
+                base_amount_raw.as_deref(),
+                quote_amount_raw.as_deref(),
+            );
+    }
+    return Ok(crate::trade_amount_resolution::TradeAmountResolution {
+        base_amount_raw,
+        quote_amount_raw,
+        price_quote_per_base,
+    });
+}
+
+async fn apply_pump_swap_amount_fallbacks(
+    input: &crate::trade_amount_resolution::TradeAmountResolutionInput<'_>,
+    base_amount_raw: &mut std::option::Option<std::string::String>,
+    quote_amount_raw: &mut std::option::Option<std::string::String>,
+    price_quote_per_base: &mut std::option::Option<f64>,
+) -> Result<(), crate::Error> {
+    let pool_owner_result = match (input.base_token_mint, input.quote_token_mint) {
+        (Some(base_mint), Some(quote_mint)) => {
+            crate::trade_pump_swap_amounts::resolve_pump_swap_trade_amounts_from_pool_balance_deltas(
+                input.transaction.meta_json.as_deref(),
+                input.pool_address,
+                base_mint,
+                quote_mint,
+                input.decoded_event.event_kind.as_str(),
+                input.base_token_decimals,
+                input.quote_token_decimals,
+            )
+        },
+        _ => Ok(crate::trade_pump_swap_amounts::PumpSwapPoolBalanceDeltaResolution::MissingData),
+    };
+    let pool_owner_resolution = match pool_owner_result {
+        Ok(pool_owner_resolution) => pool_owner_resolution,
+        Err(error) => return Err(error),
+    };
+    let pool_owner_resolution_label = pool_owner_resolution.as_label();
+    tracing::debug!(
+        event_kind = %input.decoded_event.event_kind,
+        pool_account = ?input.decoded_event.pool_account,
+        decoded_event_id = ?input.decoded_event.id,
+        transaction_signature = %input.transaction.signature,
+        base_mint = ?input.base_token_mint,
+        quote_mint = ?input.quote_token_mint,
+        pool_owner_resolution = %pool_owner_resolution_label,
+        "pump_swap pool-owner delta resolution result"
+    );
+    match pool_owner_resolution {
+        crate::trade_pump_swap_amounts::PumpSwapPoolBalanceDeltaResolution::Matched(amounts) => {
+            *base_amount_raw = Some(amounts.base_amount_raw);
+            *quote_amount_raw = Some(amounts.quote_amount_raw);
+            *price_quote_per_base = Some(amounts.price_quote_per_base);
+            tracing::debug!(
+                event_kind = %input.decoded_event.event_kind,
+                pool_account = ?input.decoded_event.pool_account,
+                decoded_event_id = ?input.decoded_event.id,
+                base_mint = ?input.base_token_mint,
+                quote_mint = ?input.quote_token_mint,
+                base_amount_raw = ?base_amount_raw,
+                quote_amount_raw = ?quote_amount_raw,
+                price_quote_per_base = ?price_quote_per_base,
+                "pump_swap trade amounts recovered from pool-owner token balance deltas"
+            );
+        },
+        crate::trade_pump_swap_amounts::PumpSwapPoolBalanceDeltaResolution::DirectionMismatch => {
+            tracing::debug!(
+                event_kind = %input.decoded_event.event_kind,
+                pool_account = ?input.decoded_event.pool_account,
+                decoded_event_id = ?input.decoded_event.id,
+                transaction_signature = %input.transaction.signature,
+                "pump_swap pool-owner full-transaction delta direction mismatch; continuing with instruction-scoped fallbacks"
+            );
+        },
+        crate::trade_pump_swap_amounts::PumpSwapPoolBalanceDeltaResolution::MissingData => {},
+    }
+    let decoded_instruction_index_result =
+        crate::trade_amount_resolution::load_decoded_instruction_index(
+            input.database,
+            input.decoded_event,
+        )
+        .await;
+    let decoded_instruction_index = match decoded_instruction_index_result {
+        Ok(decoded_instruction_index) => decoded_instruction_index,
+        Err(error) => return Err(error),
+    };
+    let payload_user_base_token_account =
+        crate::trade_amount_resolution::extract_string_by_candidate_keys(
+            input.payload,
+            &["userBaseTokenAccount", "user_base_token_account"],
+        );
+    let payload_user_quote_token_account =
+        crate::trade_amount_resolution::extract_string_by_candidate_keys(
+            input.payload,
+            &["userQuoteTokenAccount", "user_quote_token_account"],
+        );
+    let payload_pool_base_token_account =
+        crate::trade_amount_resolution::extract_string_by_candidate_keys(
+            input.payload,
+            &["poolBaseTokenAccount", "pool_base_token_account"],
+        );
+    let payload_pool_quote_token_account =
+        crate::trade_amount_resolution::extract_string_by_candidate_keys(
+            input.payload,
+            &["poolQuoteTokenAccount", "pool_quote_token_account"],
+        );
+    let effective_base_vault_address = match input.base_vault_address {
+        Some(base_vault_address) => Some(base_vault_address),
+        None => payload_pool_base_token_account.as_deref(),
+    };
+    let effective_quote_vault_address = match input.quote_vault_address {
+        Some(quote_vault_address) => Some(quote_vault_address),
+        None => payload_pool_quote_token_account.as_deref(),
+    };
+    let (input_vault_address, output_vault_address, input_token_account, output_token_account) =
+        if input.decoded_event.event_kind.ends_with(".buy") {
+            (
+                effective_quote_vault_address,
+                effective_base_vault_address,
+                payload_user_quote_token_account.as_deref(),
+                payload_user_base_token_account.as_deref(),
+            )
+        } else if input.decoded_event.event_kind.ends_with(".sell") {
+            (
+                effective_base_vault_address,
+                effective_quote_vault_address,
+                payload_user_base_token_account.as_deref(),
+                payload_user_quote_token_account.as_deref(),
+            )
+        } else {
+            (None, None, None, None)
+        };
+    let inferred_result =
+        crate::trade_solana_amounts::extract_trade_amounts_from_instruction_token_transfers(
+            input.transaction.meta_json.as_deref(),
+            decoded_instruction_index,
+            input_vault_address,
+            output_vault_address,
+            input_token_account,
+            output_token_account,
+            effective_base_vault_address,
+            effective_quote_vault_address,
+        );
+    let inferred = match inferred_result {
+        Ok(inferred) => inferred,
+        Err(error) => return Err(error),
+    };
+    if base_amount_raw.is_none() {
+        *base_amount_raw = inferred.0;
+    }
+    if quote_amount_raw.is_none() {
+        *quote_amount_raw = inferred.1;
+    }
+    if price_quote_per_base.is_none() {
+        *price_quote_per_base = inferred.2;
+    }
+    if base_amount_raw.is_none() || quote_amount_raw.is_none() {
+        let fallback_result =
+            crate::trade_solana_amounts::extract_trade_amounts_from_vault_balance_deltas(
+                input.transaction.transaction_json.as_str(),
+                input.transaction.meta_json.as_deref(),
+                effective_base_vault_address,
+                effective_quote_vault_address,
+            );
+        let fallback = match fallback_result {
+            Ok(fallback) => fallback,
+            Err(error) => return Err(error),
+        };
+        if base_amount_raw.is_none() {
+            *base_amount_raw = fallback.0;
+        }
+        if quote_amount_raw.is_none() {
+            *quote_amount_raw = fallback.1;
+        }
+        if price_quote_per_base.is_none() {
+            *price_quote_per_base = fallback.2;
+        }
+    }
+
+    if base_amount_raw.is_none() || quote_amount_raw.is_none() || price_quote_per_base.is_none() {
+        let transaction_value_result =
+            crate::trade_pump_swap_amounts::build_transaction_value_with_meta_json(
+                input.transaction.transaction_json.as_str(),
+                input.transaction.meta_json.as_deref(),
+            );
+        let transaction_value = match transaction_value_result {
+            Ok(transaction_value) => transaction_value,
+            Err(error) => return Err(error),
+        };
+        let fallback_amounts = match (input.base_token_mint, input.quote_token_mint) {
+            (Some(base_mint), Some(quote_mint)) => {
+                crate::trade_pump_swap_amounts::try_build_pump_swap_trade_amounts_from_token_balance_deltas(
+                    &transaction_value,
+                    base_mint,
+                    quote_mint,
+                )
+            },
+            _ => None,
+        };
+        if let Some(fallback_amounts) = fallback_amounts {
+            if base_amount_raw.is_none() {
+                *base_amount_raw = crate::trade_pump_swap_amounts::convert_ui_amount_to_raw_string(
+                    fallback_amounts.base_amount,
+                    input.base_token_decimals,
+                );
+            }
+            if quote_amount_raw.is_none() {
+                *quote_amount_raw = crate::trade_pump_swap_amounts::convert_ui_amount_to_raw_string(
+                    fallback_amounts.quote_amount,
+                    input.quote_token_decimals,
+                );
+            }
+            if price_quote_per_base.is_none() {
+                *price_quote_per_base = Some(fallback_amounts.price_quote_per_base);
+            }
+            tracing::debug!(
+                event_kind = %input.decoded_event.event_kind,
+                pool_account = ?input.decoded_event.pool_account,
+                decoded_event_id = ?input.decoded_event.id,
+                base_mint = ?input.base_token_mint,
+                quote_mint = ?input.quote_token_mint,
+                base_amount_raw = ?base_amount_raw,
+                quote_amount_raw = ?quote_amount_raw,
+                price_quote_per_base = ?price_quote_per_base,
+                "pump_swap trade amounts recovered from token balance deltas"
+            );
+        }
+    }
+    return Ok(());
+}
+
+fn apply_pump_fun_amount_fallback(
+    input: &crate::trade_amount_resolution::TradeAmountResolutionInput<'_>,
+    base_amount_raw: &mut std::option::Option<std::string::String>,
+    quote_amount_raw: &mut std::option::Option<std::string::String>,
+    price_quote_per_base: &mut std::option::Option<f64>,
+) -> Result<(), crate::Error> {
+    let inferred_result = crate::trade_solana_amounts::extract_pump_fun_amounts_from_transaction(
+        input.transaction.transaction_json.as_str(),
+        input.transaction.meta_json.as_deref(),
+        input.base_vault_address,
+        input.quote_vault_address,
+    );
+    let inferred = match inferred_result {
+        Ok(inferred) => inferred,
+        Err(error) => return Err(error),
+    };
+    if base_amount_raw.is_none() {
+        *base_amount_raw = inferred.0;
+    }
+    if quote_amount_raw.is_none() {
+        *quote_amount_raw = inferred.1;
+    }
+    if price_quote_per_base.is_none() {
+        *price_quote_per_base = inferred.2;
+    }
+    return Ok(());
+}
+
+async fn apply_raydium_instruction_amount_fallback(
+    input: &crate::trade_amount_resolution::TradeAmountResolutionInput<'_>,
+    base_amount_raw: &mut std::option::Option<std::string::String>,
+    quote_amount_raw: &mut std::option::Option<std::string::String>,
+    price_quote_per_base: &mut std::option::Option<f64>,
+) -> Result<(), crate::Error> {
+    let decoded_instruction_index_result =
+        crate::trade_amount_resolution::load_decoded_instruction_index(
+            input.database,
+            input.decoded_event,
+        )
+        .await;
+    let decoded_instruction_index = match decoded_instruction_index_result {
+        Ok(decoded_instruction_index) => decoded_instruction_index,
+        Err(error) => return Err(error),
+    };
+    let payload_input_vault_address =
+        crate::trade_amount_resolution::extract_string_by_candidate_keys(
+            input.payload,
+            &["inputVault", "input_vault"],
+        );
+    let payload_output_vault_address =
+        crate::trade_amount_resolution::extract_string_by_candidate_keys(
+            input.payload,
+            &["outputVault", "output_vault"],
+        );
+    let payload_input_token_account =
+        crate::trade_amount_resolution::extract_string_by_candidate_keys(
+            input.payload,
+            &["inputTokenAccount", "input_token_account"],
+        );
+    let payload_output_token_account =
+        crate::trade_amount_resolution::extract_string_by_candidate_keys(
+            input.payload,
+            &["outputTokenAccount", "output_token_account"],
+        );
+    let payload_base_vault_address =
+        crate::trade_amount_resolution::extract_string_by_candidate_keys(
+            input.payload,
+            &["baseVault", "base_vault"],
+        );
+    let payload_quote_vault_address =
+        crate::trade_amount_resolution::extract_string_by_candidate_keys(
+            input.payload,
+            &["quoteVault", "quote_vault"],
+        );
+    let effective_base_vault_address = match input.base_vault_address {
+        Some(base_vault_address) => Some(base_vault_address),
+        None => payload_base_vault_address.as_deref(),
+    };
+    let effective_quote_vault_address = match input.quote_vault_address {
+        Some(quote_vault_address) => Some(quote_vault_address),
+        None => payload_quote_vault_address.as_deref(),
+    };
+    let inferred_result =
+        crate::trade_solana_amounts::extract_trade_amounts_from_instruction_token_transfers(
+            input.transaction.meta_json.as_deref(),
+            decoded_instruction_index,
+            payload_input_vault_address.as_deref(),
+            payload_output_vault_address.as_deref(),
+            payload_input_token_account.as_deref(),
+            payload_output_token_account.as_deref(),
+            effective_base_vault_address,
+            effective_quote_vault_address,
+        );
+    let inferred = match inferred_result {
+        Ok(inferred) => inferred,
+        Err(error) => return Err(error),
+    };
+    if base_amount_raw.is_none() {
+        *base_amount_raw = inferred.0;
+    }
+    if quote_amount_raw.is_none() {
+        *quote_amount_raw = inferred.1;
+    }
+    if price_quote_per_base.is_none() {
+        *price_quote_per_base = inferred.2;
+    }
+    return Ok(());
+}
+
+fn apply_vault_balance_delta_fallback(
+    input: &crate::trade_amount_resolution::TradeAmountResolutionInput<'_>,
+    base_vault_address: std::option::Option<&str>,
+    quote_vault_address: std::option::Option<&str>,
+    base_amount_raw: &mut std::option::Option<std::string::String>,
+    quote_amount_raw: &mut std::option::Option<std::string::String>,
+    price_quote_per_base: &mut std::option::Option<f64>,
+) -> Result<(), crate::Error> {
+    let inferred_result =
+        crate::trade_solana_amounts::extract_trade_amounts_from_vault_balance_deltas(
+            input.transaction.transaction_json.as_str(),
+            input.transaction.meta_json.as_deref(),
+            base_vault_address,
+            quote_vault_address,
+        );
+    let inferred = match inferred_result {
+        Ok(inferred) => inferred,
+        Err(error) => return Err(error),
+    };
+    if base_amount_raw.is_none() {
+        *base_amount_raw = inferred.0;
+    }
+    if quote_amount_raw.is_none() {
+        *quote_amount_raw = inferred.1;
+    }
+    if price_quote_per_base.is_none() {
+        *price_quote_per_base = inferred.2;
+    }
+    return Ok(());
+}
+
+async fn load_decoded_instruction_index(
+    database: &crate::Database,
+    decoded_event: &crate::DexDecodedEventDto,
+) -> Result<std::option::Option<u32>, crate::Error> {
+    let instruction_id = match decoded_event.instruction_id {
+        Some(instruction_id) => instruction_id,
+        None => return Ok(None),
+    };
+    let instruction_result =
+        crate::query_chain_instructions_get_by_id(database, instruction_id).await;
+    let instruction_option = match instruction_result {
+        Ok(instruction_option) => instruction_option,
+        Err(error) => return Err(error),
+    };
+    match instruction_option {
+        Some(instruction) => return Ok(Some(instruction.instruction_index)),
+        None => return Ok(None),
+    }
+}
+
+fn extract_amount_string(
+    payload: &serde_json::Value,
+    candidate_keys: &[&str],
+) -> std::option::Option<std::string::String> {
+    return crate::trade_amount_resolution::extract_scalar_as_string_by_candidate_keys(
+        payload,
+        candidate_keys,
+    );
+}
+
+fn extract_string_by_candidate_keys(
+    value: &serde_json::Value,
+    candidate_keys: &[&str],
+) -> std::option::Option<std::string::String> {
+    if let Some(object) = value.as_object() {
+        for candidate_key in candidate_keys {
+            let direct_option = object.get(*candidate_key);
+            if let Some(direct) = direct_option {
+                let direct_text_option = direct.as_str();
+                if let Some(direct_text) = direct_text_option {
+                    return Some(direct_text.to_string());
+                }
+            }
+        }
+        for nested_value in object.values() {
+            let nested_result = crate::trade_amount_resolution::extract_string_by_candidate_keys(
+                nested_value,
+                candidate_keys,
+            );
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+        return None;
+    }
+    if let Some(array) = value.as_array() {
+        for nested_value in array {
+            let nested_result = crate::trade_amount_resolution::extract_string_by_candidate_keys(
+                nested_value,
+                candidate_keys,
+            );
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+    }
+    return None;
+}
+
+fn extract_scalar_as_string_by_candidate_keys(
+    value: &serde_json::Value,
+    candidate_keys: &[&str],
+) -> std::option::Option<std::string::String> {
+    if let Some(object) = value.as_object() {
+        for candidate_key in candidate_keys {
+            let direct_option = object.get(*candidate_key);
+            if let Some(direct) = direct_option {
+                if let Some(text) = direct.as_str() {
+                    return Some(text.to_string());
+                }
+                if let Some(number) = direct.as_i64() {
+                    return Some(number.to_string());
+                }
+                if let Some(number) = direct.as_u64() {
+                    return Some(number.to_string());
+                }
+                if let Some(number) = direct.as_f64() {
+                    return Some(number.to_string());
+                }
+            }
+        }
+        for nested_value in object.values() {
+            let nested_result =
+                crate::trade_amount_resolution::extract_scalar_as_string_by_candidate_keys(
+                    nested_value,
+                    candidate_keys,
+                );
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+        return None;
+    }
+    if let Some(array) = value.as_array() {
+        for nested_value in array {
+            let nested_result =
+                crate::trade_amount_resolution::extract_scalar_as_string_by_candidate_keys(
+                    nested_value,
+                    candidate_keys,
+                );
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+    }
+    return None;
+}
diff --git a/kb_lib/src/trade_event_materialization.rs b/kb_lib/src/trade_event_materialization.rs
new file mode 100644
index 0000000..ecebc39
--- /dev/null
+++ b/kb_lib/src/trade_event_materialization.rs
@@ -0,0 +1,230 @@
+// file: kb_lib/src/trade_event_materialization.rs
+
+//! Trade-event materialization.
+//!
+//! This module persists normalized trade events, updates pair metrics and
+//! records the corresponding detection observation/signal.
+
+/// Input required to materialize one normalized trade event.
+pub(crate) struct TradeEventMaterializationInput<'a> {
+    /// Database connection.
+    pub(crate) database: &'a crate::Database,
+    /// Detection persistence service used for observations and signals.
+    pub(crate) persistence: &'a crate::DetectionPersistenceService,
+    /// Persisted transaction row.
+    pub(crate) transaction: &'a crate::ChainTransactionDto,
+    /// Internal transaction id.
+    pub(crate) transaction_id: i64,
+    /// Decoded DEX event row.
+    pub(crate) decoded_event: &'a crate::DexDecodedEventDto,
+    /// Internal decoded event id.
+    pub(crate) decoded_event_id: i64,
+    /// Existing trade event, when the decoded event was already materialized.
+    pub(crate) existing_trade_event: std::option::Option<crate::TradeEventDto>,
+    /// Persisted pool row.
+    pub(crate) pool: &'a crate::PoolDto,
+    /// Internal pool id.
+    pub(crate) pool_id: i64,
+    /// Persisted pair row.
+    pub(crate) pair: &'a crate::PairDto,
+    /// Internal pair id.
+    pub(crate) pair_id: i64,
+    /// Trade side.
+    pub(crate) trade_side: crate::SwapTradeSide,
+    /// Resolved trade amounts.
+    pub(crate) amount_resolution: &'a crate::trade_amount_resolution::TradeAmountResolution,
+}
+
+/// Persists one normalized trade event and updates pair-level metrics.
+pub(crate) async fn materialize_trade_event(
+    input: crate::trade_event_materialization::TradeEventMaterializationInput<'_>,
+) -> Result<crate::TradeAggregationResult, crate::Error> {
+    let base_amount_raw = input.amount_resolution.base_amount_raw.clone();
+    let quote_amount_raw = input.amount_resolution.quote_amount_raw.clone();
+    let price_quote_per_base = input.amount_resolution.price_quote_per_base;
+    let slot_i64 = crate::trade_metric_update::convert_slot_to_i64(input.transaction.slot);
+    let created_trade_event = input.existing_trade_event.is_none();
+    let trade_event_dto = crate::TradeEventDto::new(
+        input.pool.dex_id,
+        input.pool_id,
+        input.pair_id,
+        input.transaction_id,
+        input.decoded_event_id,
+        input.transaction.signature.clone(),
+        slot_i64,
+        input.trade_side,
+        input.pair.base_token_id,
+        input.pair.quote_token_id,
+        base_amount_raw.clone(),
+        quote_amount_raw.clone(),
+        price_quote_per_base,
+        crate::ObservationSourceKind::Dex,
+        input.transaction.source_endpoint_name.clone(),
+        input.decoded_event.payload_json.clone(),
+    );
+    tracing::debug!(
+        event_kind = %input.decoded_event.event_kind,
+        pool_account = ?input.decoded_event.pool_account,
+        decoded_event_id = ?input.decoded_event.id,
+        created_trade_event = created_trade_event,
+        "trade aggregation candidate"
+    );
+    let trade_event_id_result =
+        crate::query_trade_events_upsert(input.database, &trade_event_dto).await;
+    let trade_event_id = match trade_event_id_result {
+        Ok(trade_event_id) => trade_event_id,
+        Err(error) => return Err(error),
+    };
+    let pair_metric_id_result = crate::trade_event_materialization::upsert_pair_metric_for_trade(
+        input.database,
+        input.pair_id,
+        slot_i64,
+        input.transaction.signature.clone(),
+        input.trade_side,
+        base_amount_raw.clone(),
+        quote_amount_raw.clone(),
+        price_quote_per_base,
+        created_trade_event,
+    )
+    .await;
+    let pair_metric_id = match pair_metric_id_result {
+        Ok(pair_metric_id) => pair_metric_id,
+        Err(error) => return Err(error),
+    };
+    if created_trade_event {
+        let observation_result =
+            crate::trade_event_materialization::record_trade_aggregation_observation_and_signal(
+                input.persistence,
+                input.transaction,
+                input.pair_id,
+                input.pool_id,
+                trade_event_id,
+                input.trade_side,
+                base_amount_raw,
+                quote_amount_raw,
+                price_quote_per_base,
+            )
+            .await;
+        if let Err(error) = observation_result {
+            return Err(error);
+        }
+    }
+    return Ok(crate::TradeAggregationResult {
+        trade_event_id,
+        pair_metric_id,
+        pair_id: input.pair_id,
+        pool_id: input.pool_id,
+        created_trade_event,
+    });
+}
+
+async fn upsert_pair_metric_for_trade(
+    database: &crate::Database,
+    pair_id: i64,
+    slot_i64: std::option::Option<i64>,
+    signature: std::string::String,
+    trade_side: crate::SwapTradeSide,
+    base_amount_raw: std::option::Option<std::string::String>,
+    quote_amount_raw: std::option::Option<std::string::String>,
+    price_quote_per_base: std::option::Option<f64>,
+    created_trade_event: bool,
+) -> Result<i64, crate::Error> {
+    let pair_metric_result = crate::query_pair_metrics_get_by_pair_id(database, pair_id).await;
+    let pair_metric_option = match pair_metric_result {
+        Ok(pair_metric_option) => pair_metric_option,
+        Err(error) => return Err(error),
+    };
+    if let Some(existing_metric) = pair_metric_option {
+        let existing_metric_id = match existing_metric.id {
+            Some(existing_metric_id) => existing_metric_id,
+            None => {
+                return Err(crate::Error::InvalidState(
+                    "pair metric has no internal id".to_string(),
+                ));
+            },
+        };
+        if created_trade_event {
+            let mut updated_metric = existing_metric.clone();
+            crate::trade_metric_update::apply_trade_to_pair_metric(
+                &mut updated_metric,
+                slot_i64,
+                signature,
+                trade_side,
+                base_amount_raw,
+                quote_amount_raw,
+                price_quote_per_base,
+            );
+            let upsert_result = crate::query_pair_metrics_upsert(database, &updated_metric).await;
+            if let Err(error) = upsert_result {
+                return Err(error);
+            }
+        }
+        return Ok(existing_metric_id);
+    }
+    let mut new_metric = crate::PairMetricDto::new(pair_id);
+    crate::trade_metric_update::apply_trade_to_pair_metric(
+        &mut new_metric,
+        slot_i64,
+        signature,
+        trade_side,
+        base_amount_raw,
+        quote_amount_raw,
+        price_quote_per_base,
+    );
+    let upsert_result = crate::query_pair_metrics_upsert(database, &new_metric).await;
+    match upsert_result {
+        Ok(pair_metric_id) => return Ok(pair_metric_id),
+        Err(error) => return Err(error),
+    }
+}
+
+async fn record_trade_aggregation_observation_and_signal(
+    persistence: &crate::DetectionPersistenceService,
+    transaction: &crate::ChainTransactionDto,
+    pair_id: i64,
+    pool_id: i64,
+    trade_event_id: i64,
+    trade_side: crate::SwapTradeSide,
+    base_amount_raw: std::option::Option<std::string::String>,
+    quote_amount_raw: std::option::Option<std::string::String>,
+    price_quote_per_base: std::option::Option<f64>,
+) -> Result<(), crate::Error> {
+    let payload = serde_json::json!({
+        "pairId": pair_id,
+        "poolId": pool_id,
+        "tradeEventId": trade_event_id,
+        "tradeSide": format!("{:?}", trade_side),
+        "baseAmountRaw": base_amount_raw,
+        "quoteAmountRaw": quote_amount_raw,
+        "priceQuotePerBase": price_quote_per_base,
+        "transactionSignature": transaction.signature
+    });
+    let observation_result = persistence
+        .record_observation(&crate::DetectionObservationInput::new(
+            "dex.trade_aggregation".to_string(),
+            crate::ObservationSourceKind::Dex,
+            transaction.source_endpoint_name.clone(),
+            transaction.signature.clone(),
+            transaction.slot,
+            payload.clone(),
+        ))
+        .await;
+    let observation_id = match observation_result {
+        Ok(observation_id) => observation_id,
+        Err(error) => return Err(error),
+    };
+    let signal_result = persistence
+        .record_signal(&crate::DetectionSignalInput::new(
+            "signal.dex.trade_aggregation.recorded".to_string(),
+            crate::AnalysisSignalSeverity::Low,
+            transaction.signature.clone(),
+            Some(observation_id),
+            None,
+            payload,
+        ))
+        .await;
+    if let Err(error) = signal_result {
+        return Err(error);
+    }
+    return Ok(());
+}
diff --git a/kb_lib/src/trade_metric_update.rs b/kb_lib/src/trade_metric_update.rs
new file mode 100644
index 0000000..2359d0d
--- /dev/null
+++ b/kb_lib/src/trade_metric_update.rs
@@ -0,0 +1,279 @@
+// file: kb_lib/src/trade_metric_update.rs
+
+//! Trade metric update and basic trade-pricing helpers.
+//!
+//! This module contains pure helpers used by trade aggregation:
+//! pricing validation, raw amount accumulation and pair metric updates.
+
+/// Returns true when a decoded trade has enough positive values to be persisted.
+pub(crate) fn is_priced_trade_event(
+    base_amount_raw: std::option::Option<&str>,
+    quote_amount_raw: std::option::Option<&str>,
+    price_quote_per_base: std::option::Option<f64>,
+) -> bool {
+    let base_amount_raw = match base_amount_raw {
+        Some(base_amount_raw) => base_amount_raw.trim(),
+        None => return false,
+    };
+    if base_amount_raw.is_empty() {
+        return false;
+    }
+    let base_amount_result = base_amount_raw.parse::<i128>();
+    let base_amount = match base_amount_result {
+        Ok(base_amount) => base_amount,
+        Err(_) => return false,
+    };
+    if base_amount <= 0 {
+        return false;
+    }
+    let quote_amount_raw = match quote_amount_raw {
+        Some(quote_amount_raw) => quote_amount_raw.trim(),
+        None => return false,
+    };
+    if quote_amount_raw.is_empty() {
+        return false;
+    }
+    let quote_amount_result = quote_amount_raw.parse::<i128>();
+    let quote_amount = match quote_amount_result {
+        Ok(quote_amount) => quote_amount,
+        Err(_) => return false,
+    };
+    if quote_amount <= 0 {
+        return false;
+    }
+    let price = match price_quote_per_base {
+        Some(price) => price,
+        None => return false,
+    };
+    if !price.is_finite() {
+        return false;
+    }
+    return price > 0.0;
+}
+
+/// Converts an optional Solana slot to an optional signed database slot.
+pub(crate) fn convert_slot_to_i64(slot: std::option::Option<u64>) -> std::option::Option<i64> {
+    match slot {
+        Some(slot) => match i64::try_from(slot) {
+            Ok(slot) => return Some(slot),
+            Err(_) => return None,
+        },
+        None => return None,
+    }
+}
+
+/// Applies one newly-created trade event to a pair metric.
+pub(crate) fn apply_trade_to_pair_metric(
+    metric: &mut crate::PairMetricDto,
+    slot: std::option::Option<i64>,
+    signature: std::string::String,
+    trade_side: crate::SwapTradeSide,
+    base_amount_raw: std::option::Option<std::string::String>,
+    quote_amount_raw: std::option::Option<std::string::String>,
+    price_quote_per_base: std::option::Option<f64>,
+) {
+    metric.trade_count += 1;
+    if trade_side == crate::SwapTradeSide::BuyBase {
+        metric.buy_count += 1;
+    }
+    if trade_side == crate::SwapTradeSide::SellBase {
+        metric.sell_count += 1;
+    }
+    if metric.first_slot.is_none() {
+        metric.first_slot = slot;
+    }
+    if metric.first_signature.is_none() {
+        metric.first_signature = Some(signature.clone());
+    }
+    metric.last_slot = slot;
+    metric.last_signature = Some(signature);
+    metric.cumulative_base_amount_raw = crate::trade_metric_update::add_raw_amounts(
+        metric.cumulative_base_amount_raw.clone(),
+        base_amount_raw,
+    );
+    metric.cumulative_quote_amount_raw = crate::trade_metric_update::add_raw_amounts(
+        metric.cumulative_quote_amount_raw.clone(),
+        quote_amount_raw,
+    );
+    if price_quote_per_base.is_some() {
+        metric.last_price_quote_per_base = price_quote_per_base;
+    }
+    metric.updated_at = chrono::Utc::now();
+}
+
+/// Adds two optional raw integer amount strings.
+pub(crate) fn add_raw_amounts(
+    left: std::option::Option<std::string::String>,
+    right: std::option::Option<std::string::String>,
+) -> std::option::Option<std::string::String> {
+    match (left, right) {
+        (None, None) => return None,
+        (Some(left), None) => return Some(left),
+        (None, Some(right)) => return Some(right),
+        (Some(left), Some(right)) => {
+            let left_value_result = left.parse::<i128>();
+            let left_value = match left_value_result {
+                Ok(left_value) => left_value,
+                Err(_) => return Some(left),
+            };
+            let right_value_result = right.parse::<i128>();
+            let right_value = match right_value_result {
+                Ok(right_value) => right_value,
+                Err(_) => return Some(left),
+            };
+            return Some((left_value + right_value).to_string());
+        },
+    }
+}
+
+/// Computes quote/base price from raw amounts and token decimals.
+pub(crate) fn compute_price_quote_per_base_from_raw_amounts_with_decimals(
+    base_amount_raw: std::option::Option<&str>,
+    quote_amount_raw: std::option::Option<&str>,
+    base_decimals: std::option::Option<u8>,
+    quote_decimals: std::option::Option<u8>,
+) -> std::option::Option<f64> {
+    let base_decimals = match base_decimals {
+        Some(base_decimals) => base_decimals,
+        None => return None,
+    };
+    let quote_decimals = match quote_decimals {
+        Some(quote_decimals) => quote_decimals,
+        None => return None,
+    };
+    let base_amount_raw = match base_amount_raw {
+        Some(base_amount_raw) => base_amount_raw.trim(),
+        None => return None,
+    };
+    let quote_amount_raw = match quote_amount_raw {
+        Some(quote_amount_raw) => quote_amount_raw.trim(),
+        None => return None,
+    };
+    if base_amount_raw.is_empty() || quote_amount_raw.is_empty() {
+        return None;
+    }
+    let base_amount_result = base_amount_raw.parse::<f64>();
+    let base_amount = match base_amount_result {
+        Ok(base_amount) => base_amount,
+        Err(_) => return None,
+    };
+    let quote_amount_result = quote_amount_raw.parse::<f64>();
+    let quote_amount = match quote_amount_result {
+        Ok(quote_amount) => quote_amount,
+        Err(_) => return None,
+    };
+    if base_amount <= 0.0 || quote_amount <= 0.0 {
+        return None;
+    }
+    let base_scale = 10_f64.powi(i32::from(base_decimals));
+    let quote_scale = 10_f64.powi(i32::from(quote_decimals));
+    if base_scale <= 0.0 || quote_scale <= 0.0 {
+        return None;
+    }
+    let base_ui_amount = base_amount / base_scale;
+    let quote_ui_amount = quote_amount / quote_scale;
+    if base_ui_amount <= 0.0 || quote_ui_amount <= 0.0 {
+        return None;
+    }
+    return Some(quote_ui_amount / base_ui_amount);
+}
+
+/// Computes quote/base price from raw amount strings without decimals.
+pub(crate) fn compute_price_quote_per_base_from_raw_amounts(
+    base_amount_raw: std::option::Option<&str>,
+    quote_amount_raw: std::option::Option<&str>,
+) -> std::option::Option<f64> {
+    let base_amount_raw = match base_amount_raw {
+        Some(base_amount_raw) => base_amount_raw.trim(),
+        None => return None,
+    };
+    let quote_amount_raw = match quote_amount_raw {
+        Some(quote_amount_raw) => quote_amount_raw.trim(),
+        None => return None,
+    };
+    if base_amount_raw.is_empty() || quote_amount_raw.is_empty() {
+        return None;
+    }
+    let base_amount_result = base_amount_raw.parse::<f64>();
+    let base_amount = match base_amount_result {
+        Ok(base_amount) => base_amount,
+        Err(_) => return None,
+    };
+    let quote_amount_result = quote_amount_raw.parse::<f64>();
+    let quote_amount = match quote_amount_result {
+        Ok(quote_amount) => quote_amount,
+        Err(_) => return None,
+    };
+    if base_amount <= 0.0 {
+        return None;
+    }
+    return Some(quote_amount / base_amount);
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn priced_trade_event_rejects_unpriced_values() {
+        let result = super::is_priced_trade_event(None, Some("2500"), Some(2.5));
+        assert!(!result);
+        let result = super::is_priced_trade_event(Some("1000"), None, Some(2.5));
+        assert!(!result);
+        let result = super::is_priced_trade_event(Some("1000"), Some("2500"), None);
+        assert!(!result);
+        let result = super::is_priced_trade_event(Some("0"), Some("2500"), Some(2.5));
+        assert!(!result);
+        let result = super::is_priced_trade_event(Some("1000"), Some("0"), Some(2.5));
+        assert!(!result);
+        let result = super::is_priced_trade_event(Some("-1"), Some("2500"), Some(2.5));
+        assert!(!result);
+        let result = super::is_priced_trade_event(Some("1000"), Some("-1"), Some(2.5));
+        assert!(!result);
+        let result = super::is_priced_trade_event(Some("abc"), Some("2500"), Some(2.5));
+        assert!(!result);
+        let result = super::is_priced_trade_event(Some("1000"), Some("abc"), Some(2.5));
+        assert!(!result);
+        let result = super::is_priced_trade_event(Some("1000"), Some("2500"), Some(0.0));
+        assert!(!result);
+
+        let result = super::is_priced_trade_event(Some("1000"), Some("2500"), Some(f64::NAN));
+        assert!(!result);
+        let result = super::is_priced_trade_event(Some("1000"), Some("2500"), Some(2.5));
+        assert!(result);
+    }
+
+    #[test]
+    fn raw_amounts_are_added_when_both_are_valid() {
+        let result = super::add_raw_amounts(Some("1000".to_string()), Some("2500".to_string()));
+        assert_eq!(result, Some("3500".to_string()));
+    }
+
+    #[test]
+    fn raw_amount_addition_keeps_left_when_right_is_invalid() {
+        let result = super::add_raw_amounts(Some("1000".to_string()), Some("abc".to_string()));
+        assert_eq!(result, Some("1000".to_string()));
+    }
+
+    #[test]
+    fn price_with_decimals_is_computed() {
+        let price = super::compute_price_quote_per_base_from_raw_amounts_with_decimals(
+            Some("1000000"),
+            Some("2500000000"),
+            Some(6),
+            Some(9),
+        );
+        assert_eq!(price, Some(2.5));
+    }
+
+    #[test]
+    fn price_without_decimals_is_computed() {
+        let price =
+            super::compute_price_quote_per_base_from_raw_amounts(Some("1000"), Some("2500"));
+        assert_eq!(price, Some(2.5));
+    }
+
+    #[test]
+    fn overflowing_slot_is_ignored() {
+        let slot = super::convert_slot_to_i64(Some(u64::MAX));
+        assert_eq!(slot, None);
+    }
+}
diff --git a/kb_lib/src/trade_pump_swap_amounts.rs b/kb_lib/src/trade_pump_swap_amounts.rs
new file mode 100644
index 0000000..fc745f8
--- /dev/null
+++ b/kb_lib/src/trade_pump_swap_amounts.rs
@@ -0,0 +1,1233 @@
+// file: kb_lib/src/trade_pump_swap_amounts.rs
+
+//! PumpSwap trade amount recovery helpers.
+//!
+//! PumpSwap decoded events can miss direct base/quote raw amounts.
+//! This module contains fallback extraction strategies based on token
+//! balance deltas and pool-owner balance changes.
+
+/// PumpSwap trade amounts recovered from pool-owner token balance deltas.
+#[derive(Debug, Clone)]
+pub(crate) struct PumpSwapPoolBalanceDeltaAmounts {
+    /// Absolute base amount in raw token units.
+    pub(crate) base_amount_raw: std::string::String,
+    /// Absolute quote amount in raw token units.
+    pub(crate) quote_amount_raw: std::string::String,
+    /// Quote/base price computed with token decimals.
+    pub(crate) price_quote_per_base: f64,
+}
+
+/// Resolution state for pool-owner token balance delta recovery.
+#[derive(Debug, Clone)]
+pub(crate) enum PumpSwapPoolBalanceDeltaResolution {
+    /// Amounts were successfully recovered and direction matched the decoded event.
+    Matched(PumpSwapPoolBalanceDeltaAmounts),
+    /// Deltas exist but their direction contradicts the decoded event side.
+    DirectionMismatch,
+    /// Required data was missing or unusable.
+    MissingData,
+}
+
+impl PumpSwapPoolBalanceDeltaResolution {
+    /// Returns a stable tracing label for this resolution.
+    pub(crate) fn as_label(&self) -> &'static str {
+        match self {
+            Self::Matched(_) => return "matched",
+            Self::DirectionMismatch => return "direction_mismatch",
+            Self::MissingData => return "missing_data",
+        }
+    }
+}
+
+/// PumpSwap fallback amount extracted from transaction token balance deltas.
+#[derive(Clone, Debug, PartialEq)]
+pub(crate) struct PumpSwapBalanceDeltaTradeAmounts {
+    /// Base amount in UI token units.
+    pub(crate) base_amount: f64,
+    /// Quote amount in UI token units.
+    pub(crate) quote_amount: f64,
+    /// Quote/base price computed from UI amounts.
+    pub(crate) price_quote_per_base: f64,
+}
+
+#[derive(Debug, Clone)]
+struct TokenBalanceRawAmount {
+    raw_amount: i128,
+    decimals: std::option::Option<u8>,
+}
+
+#[derive(Clone, Debug, Eq, Ord, PartialEq, PartialOrd)]
+struct TokenBalanceDeltaKey {
+    account_index: i64,
+    mint: std::string::String,
+    owner: std::string::String,
+}
+
+#[derive(Clone, Debug)]
+struct TokenBalanceDeltaAccumulator {
+    pre_amount: f64,
+    post_amount: f64,
+}
+
+/// Builds a transaction JSON value that contains `meta`.
+pub(crate) fn build_transaction_value_with_meta_json(
+    transaction_json: &str,
+    meta_json: std::option::Option<&str>,
+) -> Result<serde_json::Value, crate::Error> {
+    let transaction_value_result = serde_json::from_str::<serde_json::Value>(transaction_json);
+    let mut transaction_value = match transaction_value_result {
+        Ok(transaction_value) => transaction_value,
+        Err(error) => {
+            return Err(crate::Error::Json(format!(
+                "cannot parse transaction_json for pump_swap token-balance fallback: {}",
+                error
+            )));
+        },
+    };
+
+    let meta_json = match meta_json {
+        Some(meta_json) => meta_json,
+        None => return Ok(transaction_value),
+    };
+
+    let meta_value_result = serde_json::from_str::<serde_json::Value>(meta_json);
+    let meta_value = match meta_value_result {
+        Ok(meta_value) => meta_value,
+        Err(error) => {
+            return Err(crate::Error::Json(format!(
+                "cannot parse meta_json for pump_swap token-balance fallback: {}",
+                error
+            )));
+        },
+    };
+
+    match transaction_value.as_object_mut() {
+        Some(object) => {
+            object.insert("meta".to_string(), meta_value);
+            return Ok(transaction_value);
+        },
+        None => {},
+    }
+
+    return Ok(serde_json::json!({
+        "transaction": transaction_value,
+        "meta": meta_value
+    }));
+}
+
+/// Converts a positive UI amount to a raw amount string using decimals.
+pub(crate) fn convert_ui_amount_to_raw_string(
+    amount: f64,
+    decimals: std::option::Option<u8>,
+) -> std::option::Option<std::string::String> {
+    if !amount.is_finite() {
+        return None;
+    }
+    if amount <= 0.0_f64 {
+        return None;
+    }
+
+    let decimals = match decimals {
+        Some(decimals) => decimals,
+        None => return None,
+    };
+
+    let scale = 10_f64.powi(i32::from(decimals));
+    if !scale.is_finite() {
+        return None;
+    }
+    if scale <= 0.0_f64 {
+        return None;
+    }
+
+    let raw_amount = amount * scale;
+    if !raw_amount.is_finite() {
+        return None;
+    }
+    if raw_amount <= 0.0_f64 {
+        return None;
+    }
+
+    let rounded = raw_amount.round();
+    if rounded <= 0.0_f64 {
+        return None;
+    }
+
+    return Some(format!("{:.0}", rounded));
+}
+
+/// Recovers PumpSwap amounts from full-transaction token balance deltas.
+pub(crate) fn try_build_pump_swap_trade_amounts_from_token_balance_deltas(
+    transaction_json: &serde_json::Value,
+    base_mint: &str,
+    quote_mint: &str,
+) -> std::option::Option<PumpSwapBalanceDeltaTradeAmounts> {
+    if base_mint.is_empty() {
+        return std::option::Option::None;
+    }
+    if quote_mint.is_empty() {
+        return std::option::Option::None;
+    }
+    if base_mint == quote_mint {
+        return std::option::Option::None;
+    }
+
+    let meta_json = match find_transaction_meta_json(transaction_json) {
+        std::option::Option::Some(value) => value,
+        std::option::Option::None => {
+            return std::option::Option::None;
+        },
+    };
+
+    let pre_token_balances = match json_array_field(meta_json, "preTokenBalances") {
+        std::option::Option::Some(value) => value,
+        std::option::Option::None => {
+            return std::option::Option::None;
+        },
+    };
+
+    let post_token_balances = match json_array_field(meta_json, "postTokenBalances") {
+        std::option::Option::Some(value) => value,
+        std::option::Option::None => {
+            return std::option::Option::None;
+        },
+    };
+
+    let mut deltas: std::collections::BTreeMap<TokenBalanceDeltaKey, TokenBalanceDeltaAccumulator> =
+        std::collections::BTreeMap::new();
+
+    apply_token_balance_side_to_delta_map(
+        &mut deltas,
+        pre_token_balances,
+        base_mint,
+        quote_mint,
+        true,
+    );
+
+    apply_token_balance_side_to_delta_map(
+        &mut deltas,
+        post_token_balances,
+        base_mint,
+        quote_mint,
+        false,
+    );
+
+    let mut base_amount = 0.0_f64;
+    let mut quote_amount = 0.0_f64;
+
+    for (key, accumulator) in &deltas {
+        let delta_abs = (accumulator.post_amount - accumulator.pre_amount).abs();
+        if !delta_abs.is_finite() {
+            continue;
+        }
+        if delta_abs <= 0.0_f64 {
+            continue;
+        }
+
+        if key.mint == base_mint {
+            if delta_abs > base_amount {
+                base_amount = delta_abs;
+            }
+        } else if key.mint == quote_mint && delta_abs > quote_amount {
+            quote_amount = delta_abs;
+        }
+    }
+
+    if !base_amount.is_finite() {
+        return std::option::Option::None;
+    }
+    if !quote_amount.is_finite() {
+        return std::option::Option::None;
+    }
+    if base_amount <= 0.0_f64 {
+        return std::option::Option::None;
+    }
+    if quote_amount <= 0.0_f64 {
+        return std::option::Option::None;
+    }
+
+    let price_quote_per_base = quote_amount / base_amount;
+    if !price_quote_per_base.is_finite() {
+        return std::option::Option::None;
+    }
+    if price_quote_per_base <= 0.0_f64 {
+        return std::option::Option::None;
+    }
+
+    return std::option::Option::Some(PumpSwapBalanceDeltaTradeAmounts {
+        base_amount,
+        quote_amount,
+        price_quote_per_base,
+    });
+}
+
+/// Recovers PumpSwap amounts from pool-owner pre/post token balances.
+pub(crate) fn resolve_pump_swap_trade_amounts_from_pool_balance_deltas(
+    meta_json: std::option::Option<&str>,
+    pool_owner: &str,
+    base_mint: &str,
+    quote_mint: &str,
+    event_kind: &str,
+    base_token_decimals: std::option::Option<u8>,
+    quote_token_decimals: std::option::Option<u8>,
+) -> Result<PumpSwapPoolBalanceDeltaResolution, crate::Error> {
+    let meta_json = match meta_json {
+        Some(meta_json) => meta_json,
+        None => return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData),
+    };
+
+    let pool_owner = pool_owner.trim();
+    let base_mint = base_mint.trim();
+    let quote_mint = quote_mint.trim();
+
+    if pool_owner.is_empty() || base_mint.is_empty() || quote_mint.is_empty() {
+        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
+    }
+    if base_mint == quote_mint {
+        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
+    }
+
+    let meta_value_result = serde_json::from_str::<serde_json::Value>(meta_json);
+    let meta_value = match meta_value_result {
+        Ok(meta_value) => meta_value,
+        Err(error) => {
+            return Err(crate::Error::Json(format!(
+                "cannot parse meta_json for pump_swap pool-owner balance delta extraction: {}",
+                error
+            )));
+        },
+    };
+
+    let base_pre = sum_token_balance_raw_amount_by_owner_and_mint(
+        &meta_value,
+        "preTokenBalances",
+        pool_owner,
+        base_mint,
+    );
+    let base_post = sum_token_balance_raw_amount_by_owner_and_mint(
+        &meta_value,
+        "postTokenBalances",
+        pool_owner,
+        base_mint,
+    );
+    let quote_pre = sum_token_balance_raw_amount_by_owner_and_mint(
+        &meta_value,
+        "preTokenBalances",
+        pool_owner,
+        quote_mint,
+    );
+    let quote_post = sum_token_balance_raw_amount_by_owner_and_mint(
+        &meta_value,
+        "postTokenBalances",
+        pool_owner,
+        quote_mint,
+    );
+
+    if base_pre.is_none() && base_post.is_none() {
+        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
+    }
+    if quote_pre.is_none() && quote_post.is_none() {
+        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
+    }
+
+    let base_pre_raw = token_balance_raw_amount_value(base_pre.as_ref());
+    let base_post_raw = token_balance_raw_amount_value(base_post.as_ref());
+    let quote_pre_raw = token_balance_raw_amount_value(quote_pre.as_ref());
+    let quote_post_raw = token_balance_raw_amount_value(quote_post.as_ref());
+
+    let base_delta = base_post_raw - base_pre_raw;
+    let quote_delta = quote_post_raw - quote_pre_raw;
+
+    if base_delta == 0 || quote_delta == 0 {
+        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
+    }
+
+    let pool_delta_side = if base_delta < 0 && quote_delta > 0 {
+        crate::SwapTradeSide::BuyBase
+    } else if base_delta > 0 && quote_delta < 0 {
+        crate::SwapTradeSide::SellBase
+    } else {
+        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
+    };
+
+    let event_side = trade_side_from_event_kind(event_kind);
+    if event_side != pool_delta_side {
+        return Ok(PumpSwapPoolBalanceDeltaResolution::DirectionMismatch);
+    }
+
+    let base_amount_abs = i128_abs(base_delta);
+    let quote_amount_abs = i128_abs(quote_delta);
+
+    if base_amount_abs <= 0 || quote_amount_abs <= 0 {
+        return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData);
+    }
+
+    let base_decimals = first_some_u8(
+        base_token_decimals,
+        first_token_balance_decimals(base_pre.as_ref(), base_post.as_ref()),
+    );
+    let quote_decimals = first_some_u8(
+        quote_token_decimals,
+        first_token_balance_decimals(quote_pre.as_ref(), quote_post.as_ref()),
+    );
+
+    let price_quote_per_base = compute_price_quote_per_base_from_i128_raw_amounts_with_decimals(
+        base_amount_abs,
+        quote_amount_abs,
+        base_decimals,
+        quote_decimals,
+    );
+
+    let price_quote_per_base = match price_quote_per_base {
+        Some(price_quote_per_base) => price_quote_per_base,
+        None => return Ok(PumpSwapPoolBalanceDeltaResolution::MissingData),
+    };
+
+    return Ok(PumpSwapPoolBalanceDeltaResolution::Matched(PumpSwapPoolBalanceDeltaAmounts {
+        base_amount_raw: base_amount_abs.to_string(),
+        quote_amount_raw: quote_amount_abs.to_string(),
+        price_quote_per_base,
+    }));
+}
+
+fn apply_token_balance_side_to_delta_map(
+    deltas: &mut std::collections::BTreeMap<TokenBalanceDeltaKey, TokenBalanceDeltaAccumulator>,
+    token_balances: &[serde_json::Value],
+    base_mint: &str,
+    quote_mint: &str,
+    is_pre: bool,
+) {
+    for token_balance in token_balances {
+        let mint = match json_string_field(token_balance, "mint") {
+            std::option::Option::Some(value) => value,
+            std::option::Option::None => {
+                continue;
+            },
+        };
+
+        if mint != base_mint && mint != quote_mint {
+            continue;
+        }
+
+        let account_index = match json_i64_field(token_balance, "accountIndex") {
+            std::option::Option::Some(value) => value,
+            std::option::Option::None => {
+                continue;
+            },
+        };
+
+        let owner = match json_string_field(token_balance, "owner") {
+            std::option::Option::Some(value) => value,
+            std::option::Option::None => std::string::String::new(),
+        };
+
+        let ui_amount = match token_balance_ui_amount(token_balance) {
+            std::option::Option::Some(value) => value,
+            std::option::Option::None => {
+                continue;
+            },
+        };
+
+        if !ui_amount.is_finite() {
+            continue;
+        }
+
+        let key = TokenBalanceDeltaKey { account_index, mint, owner };
+        let entry = deltas.entry(key).or_insert(TokenBalanceDeltaAccumulator {
+            pre_amount: 0.0_f64,
+            post_amount: 0.0_f64,
+        });
+
+        if is_pre {
+            entry.pre_amount = ui_amount;
+        } else {
+            entry.post_amount = ui_amount;
+        }
+    }
+}
+
+fn token_balance_ui_amount(token_balance: &serde_json::Value) -> std::option::Option<f64> {
+    let ui_token_amount = match json_object_field(token_balance, "uiTokenAmount") {
+        std::option::Option::Some(value) => value,
+        std::option::Option::None => {
+            return std::option::Option::None;
+        },
+    };
+
+    match json_f64_field(ui_token_amount, "uiAmount") {
+        std::option::Option::Some(value) => {
+            return std::option::Option::Some(value);
+        },
+        std::option::Option::None => {},
+    }
+
+    match json_string_field(ui_token_amount, "uiAmountString") {
+        std::option::Option::Some(value) => match value.parse::<f64>() {
+            std::result::Result::Ok(parsed) => {
+                return std::option::Option::Some(parsed);
+            },
+            std::result::Result::Err(_) => {},
+        },
+        std::option::Option::None => {},
+    }
+
+    let raw_amount = match json_string_field(ui_token_amount, "amount") {
+        std::option::Option::Some(value) => value,
+        std::option::Option::None => {
+            return std::option::Option::None;
+        },
+    };
+
+    let decimals = match json_i64_field(ui_token_amount, "decimals") {
+        std::option::Option::Some(value) => value,
+        std::option::Option::None => {
+            return std::option::Option::None;
+        },
+    };
+
+    if decimals < 0_i64 {
+        return std::option::Option::None;
+    }
+    if decimals > 18_i64 {
+        return std::option::Option::None;
+    }
+
+    let raw_amount_f64 = match raw_amount.parse::<f64>() {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(_) => {
+            return std::option::Option::None;
+        },
+    };
+
+    let divisor = 10_f64.powi(decimals as i32);
+    if divisor <= 0.0_f64 {
+        return std::option::Option::None;
+    }
+
+    return std::option::Option::Some(raw_amount_f64 / divisor);
+}
+
+fn find_transaction_meta_json(
+    transaction_json: &serde_json::Value,
+) -> std::option::Option<&serde_json::Value> {
+    match json_object_field(transaction_json, "meta") {
+        std::option::Option::Some(value) => {
+            return std::option::Option::Some(value);
+        },
+        std::option::Option::None => {},
+    }
+
+    match json_object_field(transaction_json, "transaction") {
+        std::option::Option::Some(transaction_value) => {
+            match json_object_field(transaction_value, "meta") {
+                std::option::Option::Some(value) => {
+                    return std::option::Option::Some(value);
+                },
+                std::option::Option::None => {},
+            }
+        },
+        std::option::Option::None => {},
+    }
+
+    match json_object_field(transaction_json, "result") {
+        std::option::Option::Some(result_value) => {
+            match json_object_field(result_value, "meta") {
+                std::option::Option::Some(value) => {
+                    return std::option::Option::Some(value);
+                },
+                std::option::Option::None => {},
+            }
+
+            match json_object_field(result_value, "transaction") {
+                std::option::Option::Some(transaction_value) => {
+                    match json_object_field(transaction_value, "meta") {
+                        std::option::Option::Some(value) => {
+                            return std::option::Option::Some(value);
+                        },
+                        std::option::Option::None => {},
+                    }
+                },
+                std::option::Option::None => {},
+            }
+        },
+        std::option::Option::None => {},
+    }
+
+    return std::option::Option::None;
+}
+
+fn sum_token_balance_raw_amount_by_owner_and_mint(
+    meta_value: &serde_json::Value,
+    field_name: &str,
+    owner: &str,
+    mint: &str,
+) -> std::option::Option<TokenBalanceRawAmount> {
+    let balances_value = match json_array_field(meta_value, field_name) {
+        std::option::Option::Some(balances_value) => balances_value,
+        std::option::Option::None => return std::option::Option::None,
+    };
+
+    let mut total = 0_i128;
+    let mut found = false;
+    let mut decimals = std::option::Option::None;
+
+    for balance in balances_value {
+        let balance_mint = match json_string_field(balance, "mint") {
+            std::option::Option::Some(balance_mint) => balance_mint,
+            std::option::Option::None => continue,
+        };
+
+        if balance_mint != mint {
+            continue;
+        }
+
+        let balance_owner = match json_string_field(balance, "owner") {
+            std::option::Option::Some(balance_owner) => balance_owner,
+            std::option::Option::None => continue,
+        };
+
+        if balance_owner != owner {
+            continue;
+        }
+
+        let ui_token_amount = match json_object_field(balance, "uiTokenAmount") {
+            std::option::Option::Some(ui_token_amount) => ui_token_amount,
+            std::option::Option::None => continue,
+        };
+
+        let amount_text = match json_string_field(ui_token_amount, "amount") {
+            std::option::Option::Some(amount_text) => amount_text,
+            std::option::Option::None => continue,
+        };
+
+        let amount_result = amount_text.parse::<i128>();
+        let amount = match amount_result {
+            std::result::Result::Ok(amount) => amount,
+            std::result::Result::Err(_) => continue,
+        };
+
+        total += amount;
+        found = true;
+
+        if decimals.is_none() {
+            let decimals_i64 = match json_i64_field(ui_token_amount, "decimals") {
+                std::option::Option::Some(decimals_i64) => decimals_i64,
+                std::option::Option::None => continue,
+            };
+
+            let decimals_u8 = match u8::try_from(decimals_i64) {
+                std::result::Result::Ok(decimals_u8) => decimals_u8,
+                std::result::Result::Err(_) => continue,
+            };
+
+            decimals = std::option::Option::Some(decimals_u8);
+        }
+    }
+
+    if !found {
+        return std::option::Option::None;
+    }
+
+    return std::option::Option::Some(TokenBalanceRawAmount { raw_amount: total, decimals });
+}
+
+fn token_balance_raw_amount_value(value: std::option::Option<&TokenBalanceRawAmount>) -> i128 {
+    match value {
+        std::option::Option::Some(value) => return value.raw_amount,
+        std::option::Option::None => return 0_i128,
+    }
+}
+
+fn first_token_balance_decimals(
+    left: std::option::Option<&TokenBalanceRawAmount>,
+    right: std::option::Option<&TokenBalanceRawAmount>,
+) -> std::option::Option<u8> {
+    if let std::option::Option::Some(left) = left {
+        if left.decimals.is_some() {
+            return left.decimals;
+        }
+    }
+
+    if let std::option::Option::Some(right) = right {
+        return right.decimals;
+    }
+
+    return std::option::Option::None;
+}
+
+fn first_some_u8(
+    left: std::option::Option<u8>,
+    right: std::option::Option<u8>,
+) -> std::option::Option<u8> {
+    match left {
+        std::option::Option::Some(left) => return std::option::Option::Some(left),
+        std::option::Option::None => return right,
+    }
+}
+
+fn trade_side_from_event_kind(event_kind: &str) -> crate::SwapTradeSide {
+    if event_kind.ends_with(".buy") {
+        return crate::SwapTradeSide::BuyBase;
+    }
+    if event_kind.ends_with(".sell") {
+        return crate::SwapTradeSide::SellBase;
+    }
+    return crate::SwapTradeSide::Unknown;
+}
+
+fn i128_abs(i128_abs: i128) -> i128 {
+    if i128_abs < 0_i128 {
+        return -i128_abs;
+    }
+    return i128_abs;
+}
+
+fn compute_price_quote_per_base_from_i128_raw_amounts_with_decimals(
+    base_amount_raw: i128,
+    quote_amount_raw: i128,
+    base_decimals: std::option::Option<u8>,
+    quote_decimals: std::option::Option<u8>,
+) -> std::option::Option<f64> {
+    if base_amount_raw <= 0_i128 || quote_amount_raw <= 0_i128 {
+        return std::option::Option::None;
+    }
+
+    let base_decimals = match base_decimals {
+        std::option::Option::Some(base_decimals) => base_decimals,
+        std::option::Option::None => return std::option::Option::None,
+    };
+
+    let quote_decimals = match quote_decimals {
+        std::option::Option::Some(quote_decimals) => quote_decimals,
+        std::option::Option::None => return std::option::Option::None,
+    };
+
+    let base_scale = 10_f64.powi(i32::from(base_decimals));
+    let quote_scale = 10_f64.powi(i32::from(quote_decimals));
+
+    if !base_scale.is_finite() || !quote_scale.is_finite() {
+        return std::option::Option::None;
+    }
+    if base_scale <= 0.0_f64 || quote_scale <= 0.0_f64 {
+        return std::option::Option::None;
+    }
+
+    let base_amount = base_amount_raw as f64 / base_scale;
+    let quote_amount = quote_amount_raw as f64 / quote_scale;
+
+    if !base_amount.is_finite() || !quote_amount.is_finite() {
+        return std::option::Option::None;
+    }
+    if base_amount <= 0.0_f64 || quote_amount <= 0.0_f64 {
+        return std::option::Option::None;
+    }
+
+    let price_quote_per_base = quote_amount / base_amount;
+    if !price_quote_per_base.is_finite() {
+        return std::option::Option::None;
+    }
+    if price_quote_per_base <= 0.0_f64 {
+        return std::option::Option::None;
+    }
+
+    return std::option::Option::Some(price_quote_per_base);
+}
+
+fn json_object_field<'a>(
+    value: &'a serde_json::Value,
+    field_name: &str,
+) -> std::option::Option<&'a serde_json::Value> {
+    match value {
+        serde_json::Value::Object(object) => match object.get(field_name) {
+            std::option::Option::Some(field_value) => {
+                return std::option::Option::Some(field_value);
+            },
+            std::option::Option::None => return std::option::Option::None,
+        },
+        _ => return std::option::Option::None,
+    }
+}
+
+fn json_array_field<'a>(
+    value: &'a serde_json::Value,
+    field_name: &str,
+) -> std::option::Option<&'a [serde_json::Value]> {
+    let field_value = match json_object_field(value, field_name) {
+        std::option::Option::Some(found) => found,
+        std::option::Option::None => {
+            return std::option::Option::None;
+        },
+    };
+
+    match field_value {
+        serde_json::Value::Array(values) => return std::option::Option::Some(values.as_slice()),
+        _ => return std::option::Option::None,
+    }
+}
+
+fn json_string_field(
+    value: &serde_json::Value,
+    field_name: &str,
+) -> std::option::Option<std::string::String> {
+    let field_value = match json_object_field(value, field_name) {
+        std::option::Option::Some(found) => found,
+        std::option::Option::None => {
+            return std::option::Option::None;
+        },
+    };
+
+    match field_value {
+        serde_json::Value::String(text) => return std::option::Option::Some(text.clone()),
+        serde_json::Value::Number(number) => return std::option::Option::Some(number.to_string()),
+        _ => return std::option::Option::None,
+    }
+}
+
+fn json_i64_field(value: &serde_json::Value, field_name: &str) -> std::option::Option<i64> {
+    let field_value = match json_object_field(value, field_name) {
+        std::option::Option::Some(found) => found,
+        std::option::Option::None => {
+            return std::option::Option::None;
+        },
+    };
+
+    match field_value {
+        serde_json::Value::Number(number) => return number.as_i64(),
+        serde_json::Value::String(text) => match text.parse::<i64>() {
+            std::result::Result::Ok(parsed) => return std::option::Option::Some(parsed),
+            std::result::Result::Err(_) => return std::option::Option::None,
+        },
+        _ => return std::option::Option::None,
+    }
+}
+
+fn json_f64_field(value: &serde_json::Value, field_name: &str) -> std::option::Option<f64> {
+    let field_value = match json_object_field(value, field_name) {
+        std::option::Option::Some(found) => found,
+        std::option::Option::None => {
+            return std::option::Option::None;
+        },
+    };
+
+    match field_value {
+        serde_json::Value::Number(number) => return number.as_f64(),
+        serde_json::Value::String(text) => match text.parse::<f64>() {
+            std::result::Result::Ok(parsed) => return std::option::Option::Some(parsed),
+            std::result::Result::Err(_) => return std::option::Option::None,
+        },
+        _ => return std::option::Option::None,
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn pump_swap_balance_delta_amounts_are_recovered_from_meta() {
+        let transaction_json = serde_json::json!({
+            "meta": {
+                "preTokenBalances": [
+                    {
+                        "accountIndex": 1,
+                        "mint": "BASE111",
+                        "owner": "owner_a",
+                        "uiTokenAmount": {
+                            "uiAmount": 10.0,
+                            "uiAmountString": "10",
+                            "decimals": 6,
+                            "amount": "10000000"
+                        }
+                    },
+                    {
+                        "accountIndex": 2,
+                        "mint": "QUOTE111",
+                        "owner": "owner_b",
+                        "uiTokenAmount": {
+                            "uiAmount": 2.0,
+                            "uiAmountString": "2",
+                            "decimals": 9,
+                            "amount": "2000000000"
+                        }
+                    }
+                ],
+                "postTokenBalances": [
+                    {
+                        "accountIndex": 1,
+                        "mint": "BASE111",
+                        "owner": "owner_a",
+                        "uiTokenAmount": {
+                            "uiAmount": 15.0,
+                            "uiAmountString": "15",
+                            "decimals": 6,
+                            "amount": "15000000"
+                        }
+                    },
+                    {
+                        "accountIndex": 2,
+                        "mint": "QUOTE111",
+                        "owner": "owner_b",
+                        "uiTokenAmount": {
+                            "uiAmount": 1.5,
+                            "uiAmountString": "1.5",
+                            "decimals": 9,
+                            "amount": "1500000000"
+                        }
+                    }
+                ]
+            }
+        });
+
+        let amounts = match super::try_build_pump_swap_trade_amounts_from_token_balance_deltas(
+            &transaction_json,
+            "BASE111",
+            "QUOTE111",
+        ) {
+            std::option::Option::Some(value) => value,
+            std::option::Option::None => {
+                panic!("expected pump_swap balance delta amounts");
+            },
+        };
+
+        assert_eq!(amounts.base_amount, 5.0_f64);
+        assert_eq!(amounts.quote_amount, 0.5_f64);
+        assert_eq!(amounts.price_quote_per_base, 0.1_f64);
+    }
+
+    #[test]
+    fn pump_swap_balance_delta_amounts_use_raw_amount_when_ui_amount_is_null() {
+        let transaction_json = serde_json::json!({
+            "meta": {
+                "preTokenBalances": [
+                    {
+                        "accountIndex": 1,
+                        "mint": "BASE111",
+                        "owner": "owner_a",
+                        "uiTokenAmount": {
+                            "uiAmount": null,
+                            "decimals": 6,
+                            "amount": "10000000"
+                        }
+                    },
+                    {
+                        "accountIndex": 2,
+                        "mint": "QUOTE111",
+                        "owner": "owner_b",
+                        "uiTokenAmount": {
+                            "uiAmount": null,
+                            "decimals": 9,
+                            "amount": "2000000000"
+                        }
+                    }
+                ],
+                "postTokenBalances": [
+                    {
+                        "accountIndex": 1,
+                        "mint": "BASE111",
+                        "owner": "owner_a",
+                        "uiTokenAmount": {
+                            "uiAmount": null,
+                            "decimals": 6,
+                            "amount": "15000000"
+                        }
+                    },
+                    {
+                        "accountIndex": 2,
+                        "mint": "QUOTE111",
+                        "owner": "owner_b",
+                        "uiTokenAmount": {
+                            "uiAmount": null,
+                            "decimals": 9,
+                            "amount": "1500000000"
+                        }
+                    }
+                ]
+            }
+        });
+
+        let amounts = match super::try_build_pump_swap_trade_amounts_from_token_balance_deltas(
+            &transaction_json,
+            "BASE111",
+            "QUOTE111",
+        ) {
+            std::option::Option::Some(value) => value,
+            std::option::Option::None => {
+                panic!("expected pump_swap balance delta amounts");
+            },
+        };
+
+        assert_eq!(amounts.base_amount, 5.0_f64);
+        assert_eq!(amounts.quote_amount, 0.5_f64);
+        assert_eq!(amounts.price_quote_per_base, 0.1_f64);
+    }
+
+    #[test]
+    fn pump_swap_balance_delta_amounts_return_none_when_base_delta_is_zero() {
+        let transaction_json = serde_json::json!({
+            "meta": {
+                "preTokenBalances": [
+                    {
+                        "accountIndex": 1,
+                        "mint": "BASE111",
+                        "owner": "owner_a",
+                        "uiTokenAmount": {
+                            "uiAmount": 10.0,
+                            "uiAmountString": "10",
+                            "decimals": 6,
+                            "amount": "10000000"
+                        }
+                    },
+                    {
+                        "accountIndex": 2,
+                        "mint": "QUOTE111",
+                        "owner": "owner_b",
+                        "uiTokenAmount": {
+                            "uiAmount": 2.0,
+                            "uiAmountString": "2",
+                            "decimals": 9,
+                            "amount": "2000000000"
+                        }
+                    }
+                ],
+                "postTokenBalances": [
+                    {
+                        "accountIndex": 1,
+                        "mint": "BASE111",
+                        "owner": "owner_a",
+                        "uiTokenAmount": {
+                            "uiAmount": 10.0,
+                            "uiAmountString": "10",
+                            "decimals": 6,
+                            "amount": "10000000"
+                        }
+                    },
+                    {
+                        "accountIndex": 2,
+                        "mint": "QUOTE111",
+                        "owner": "owner_b",
+                        "uiTokenAmount": {
+                            "uiAmount": 1.5,
+                            "uiAmountString": "1.5",
+                            "decimals": 9,
+                            "amount": "1500000000"
+                        }
+                    }
+                ]
+            }
+        });
+
+        let amounts = super::try_build_pump_swap_trade_amounts_from_token_balance_deltas(
+            &transaction_json,
+            "BASE111",
+            "QUOTE111",
+        );
+
+        assert_eq!(amounts, std::option::Option::None);
+    }
+
+    #[test]
+    fn pump_swap_pool_owner_delta_accepts_buy_direction() {
+        let meta_json = serde_json::json!({
+            "preTokenBalances": [
+                {
+                    "accountIndex": 1,
+                    "mint": "BASE111",
+                    "owner": "Pool111",
+                    "uiTokenAmount": {
+                        "amount": "7967771862",
+                        "decimals": 9
+                    }
+                },
+                {
+                    "accountIndex": 2,
+                    "mint": "QUOTE111",
+                    "owner": "Pool111",
+                    "uiTokenAmount": {
+                        "amount": "8970607",
+                        "decimals": 9
+                    }
+                }
+            ],
+            "postTokenBalances": [
+                {
+                    "accountIndex": 1,
+                    "mint": "BASE111",
+                    "owner": "Pool111",
+                    "uiTokenAmount": {
+                        "amount": "7573340642",
+                        "decimals": 9
+                    }
+                },
+                {
+                    "accountIndex": 2,
+                    "mint": "QUOTE111",
+                    "owner": "Pool111",
+                    "uiTokenAmount": {
+                        "amount": "9438980",
+                        "decimals": 9
+                    }
+                }
+            ]
+        });
+
+        let meta_json_text = meta_json.to_string();
+
+        let result = super::resolve_pump_swap_trade_amounts_from_pool_balance_deltas(
+            Some(meta_json_text.as_str()),
+            "Pool111",
+            "BASE111",
+            "QUOTE111",
+            "pump_swap.buy",
+            Some(9),
+            Some(9),
+        );
+
+        let resolution = match result {
+            Ok(resolution) => resolution,
+            Err(error) => panic!("pump_swap delta resolution must succeed: {}", error),
+        };
+
+        match resolution {
+            super::PumpSwapPoolBalanceDeltaResolution::Matched(amounts) => {
+                assert_eq!(amounts.base_amount_raw, "394431220");
+                assert_eq!(amounts.quote_amount_raw, "468373");
+                assert!(amounts.price_quote_per_base > 0.00118);
+                assert!(amounts.price_quote_per_base < 0.00119);
+            },
+            _ => panic!("expected matched pump_swap buy delta"),
+        }
+    }
+
+    #[test]
+    fn pump_swap_pool_owner_delta_rejects_wrong_direction() {
+        let meta_json = serde_json::json!({
+            "preTokenBalances": [
+                {
+                    "accountIndex": 1,
+                    "mint": "BASE111",
+                    "owner": "Pool111",
+                    "uiTokenAmount": {
+                        "amount": "7967771862",
+                        "decimals": 9
+                    }
+                },
+                {
+                    "accountIndex": 2,
+                    "mint": "QUOTE111",
+                    "owner": "Pool111",
+                    "uiTokenAmount": {
+                        "amount": "8970607",
+                        "decimals": 9
+                    }
+                }
+            ],
+            "postTokenBalances": [
+                {
+                    "accountIndex": 1,
+                    "mint": "BASE111",
+                    "owner": "Pool111",
+                    "uiTokenAmount": {
+                        "amount": "7573340642",
+                        "decimals": 9
+                    }
+                },
+                {
+                    "accountIndex": 2,
+                    "mint": "QUOTE111",
+                    "owner": "Pool111",
+                    "uiTokenAmount": {
+                        "amount": "9438980",
+                        "decimals": 9
+                    }
+                }
+            ]
+        });
+
+        let meta_json_text = meta_json.to_string();
+
+        let result = super::resolve_pump_swap_trade_amounts_from_pool_balance_deltas(
+            Some(meta_json_text.as_str()),
+            "Pool111",
+            "BASE111",
+            "QUOTE111",
+            "pump_swap.sell",
+            Some(9),
+            Some(9),
+        );
+
+        let resolution = match result {
+            Ok(resolution) => resolution,
+            Err(error) => panic!("pump_swap delta resolution must succeed: {}", error),
+        };
+
+        match resolution {
+            super::PumpSwapPoolBalanceDeltaResolution::DirectionMismatch => {},
+            _ => panic!("expected pump_swap direction mismatch"),
+        }
+    }
+
+    #[test]
+    fn pump_swap_pool_owner_delta_ignores_non_pool_owner() {
+        let meta_json = serde_json::json!({
+            "preTokenBalances": [
+                {
+                    "accountIndex": 1,
+                    "mint": "BASE111",
+                    "owner": "OtherOwner111",
+                    "uiTokenAmount": {
+                        "amount": "1000",
+                        "decimals": 6
+                    }
+                },
+                {
+                    "accountIndex": 2,
+                    "mint": "QUOTE111",
+                    "owner": "OtherOwner111",
+                    "uiTokenAmount": {
+                        "amount": "2000",
+                        "decimals": 6
+                    }
+                }
+            ],
+            "postTokenBalances": [
+                {
+                    "accountIndex": 1,
+                    "mint": "BASE111",
+                    "owner": "OtherOwner111",
+                    "uiTokenAmount": {
+                        "amount": "900",
+                        "decimals": 6
+                    }
+                },
+                {
+                    "accountIndex": 2,
+                    "mint": "QUOTE111",
+                    "owner": "OtherOwner111",
+                    "uiTokenAmount": {
+                        "amount": "2100",
+                        "decimals": 6
+                    }
+                }
+            ]
+        });
+
+        let meta_json_text = meta_json.to_string();
+
+        let result = super::resolve_pump_swap_trade_amounts_from_pool_balance_deltas(
+            Some(meta_json_text.as_str()),
+            "Pool111",
+            "BASE111",
+            "QUOTE111",
+            "pump_swap.buy",
+            Some(6),
+            Some(6),
+        );
+
+        let resolution = match result {
+            Ok(resolution) => resolution,
+            Err(error) => panic!("pump_swap delta resolution must succeed: {}", error),
+        };
+        match resolution {
+            super::PumpSwapPoolBalanceDeltaResolution::MissingData => {},
+            _ => panic!("expected missing data for non-pool owner"),
+        }
+    }
+}
diff --git a/kb_lib/src/trade_side_resolution.rs b/kb_lib/src/trade_side_resolution.rs
new file mode 100644
index 0000000..7f383e2
--- /dev/null
+++ b/kb_lib/src/trade_side_resolution.rs
@@ -0,0 +1,118 @@
+// file: kb_lib/src/trade_side_resolution.rs
+
+//! Trade-side resolution helpers.
+//!
+//! This module resolves a normalized `SwapTradeSide` from a decoded event kind
+//! and optional decoded payload metadata.
+
+/// Resolves the normalized trade side from payload metadata and event kind.
+pub(crate) fn extract_trade_side(
+    event_kind: &str,
+    payload: &serde_json::Value,
+) -> crate::SwapTradeSide {
+    let trade_side_option = crate::trade_side_resolution::extract_string_by_candidate_keys(
+        payload,
+        &["tradeSide", "trade_side"],
+    );
+    match trade_side_option.as_deref() {
+        Some("BuyBase") => return crate::SwapTradeSide::BuyBase,
+        Some("buy") => return crate::SwapTradeSide::BuyBase,
+        Some("BUY") => return crate::SwapTradeSide::BuyBase,
+        Some("SellBase") => return crate::SwapTradeSide::SellBase,
+        Some("sell") => return crate::SwapTradeSide::SellBase,
+        Some("SELL") => return crate::SwapTradeSide::SellBase,
+        _ => {},
+    }
+    if event_kind.ends_with(".buy") {
+        return crate::SwapTradeSide::BuyBase;
+    }
+    if event_kind.ends_with(".sell") {
+        return crate::SwapTradeSide::SellBase;
+    }
+    return crate::SwapTradeSide::Unknown;
+}
+
+fn extract_string_by_candidate_keys(
+    value: &serde_json::Value,
+    candidate_keys: &[&str],
+) -> std::option::Option<std::string::String> {
+    if let Some(object) = value.as_object() {
+        for candidate_key in candidate_keys {
+            let direct_option = object.get(*candidate_key);
+            if let Some(direct) = direct_option {
+                let direct_text_option = direct.as_str();
+                if let Some(direct_text) = direct_text_option {
+                    return Some(direct_text.to_string());
+                }
+            }
+        }
+        for nested_value in object.values() {
+            let nested_result = crate::trade_side_resolution::extract_string_by_candidate_keys(
+                nested_value,
+                candidate_keys,
+            );
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+        return None;
+    }
+    if let Some(array) = value.as_array() {
+        for nested_value in array {
+            let nested_result = crate::trade_side_resolution::extract_string_by_candidate_keys(
+                nested_value,
+                candidate_keys,
+            );
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+    }
+    return None;
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn payload_trade_side_wins_over_event_kind() {
+        let payload = serde_json::json!({
+            "tradeSide": "SellBase"
+        });
+        let side = super::extract_trade_side("pump_swap.buy", &payload);
+        assert_eq!(side, crate::SwapTradeSide::SellBase);
+    }
+
+    #[test]
+    fn nested_payload_trade_side_is_resolved() {
+        let payload = serde_json::json!({
+            "decoded": {
+                "meta": {
+                    "trade_side": "buy"
+                }
+            }
+        });
+        let side = super::extract_trade_side("raydium_cpmm.swap_base_input", &payload);
+        assert_eq!(side, crate::SwapTradeSide::BuyBase);
+    }
+
+    #[test]
+    fn buy_suffix_is_resolved_when_payload_has_no_side() {
+        let payload = serde_json::json!({});
+        let side = super::extract_trade_side("pump_fun.buy", &payload);
+        assert_eq!(side, crate::SwapTradeSide::BuyBase);
+    }
+
+    #[test]
+    fn sell_suffix_is_resolved_when_payload_has_no_side() {
+        let payload = serde_json::json!({});
+        let side = super::extract_trade_side("pump_fun.sell", &payload);
+        assert_eq!(side, crate::SwapTradeSide::SellBase);
+    }
+
+    #[test]
+    fn unknown_side_is_returned_when_no_hint_exists() {
+        let payload = serde_json::json!({});
+        let side = super::extract_trade_side("raydium_cpmm.swap_base_input", &payload);
+        assert_eq!(side, crate::SwapTradeSide::Unknown);
+    }
+}
diff --git a/kb_lib/src/trade_solana_amounts.rs b/kb_lib/src/trade_solana_amounts.rs
new file mode 100644
index 0000000..657fdb6
--- /dev/null
+++ b/kb_lib/src/trade_solana_amounts.rs
@@ -0,0 +1,913 @@
+// file: kb_lib/src/trade_solana_amounts.rs
+
+//! Solana transaction/meta trade amount extraction helpers.
+//!
+//! This module contains generic fallback logic based on transaction JSON,
+//! transaction meta, account keys, token balances, native balances and
+//! instruction-scoped SPL token transfers.
+
+/// Extracted base/quote amounts and optional quote/base price.
+pub(crate) type ExtractedTradeAmounts = (
+    std::option::Option<std::string::String>,
+    std::option::Option<std::string::String>,
+    std::option::Option<f64>,
+);
+
+/// Extracts base/quote amounts from token-account vault balance deltas.
+pub(crate) fn extract_trade_amounts_from_vault_balance_deltas(
+    transaction_json: &str,
+    meta_json: std::option::Option<&str>,
+    base_vault_address: std::option::Option<&str>,
+    quote_vault_address: std::option::Option<&str>,
+) -> Result<crate::trade_solana_amounts::ExtractedTradeAmounts, crate::Error> {
+    let meta_json = match meta_json {
+        Some(meta_json) => meta_json,
+        None => return Ok((None, None, None)),
+    };
+    let transaction_value_result = serde_json::from_str::<serde_json::Value>(transaction_json);
+    let transaction_value = match transaction_value_result {
+        Ok(transaction_value) => transaction_value,
+        Err(error) => {
+            return Err(crate::Error::Json(format!(
+                "cannot parse transaction_json for vault balance amount extraction: {}",
+                error
+            )));
+        },
+    };
+    let meta_value_result = serde_json::from_str::<serde_json::Value>(meta_json);
+    let meta_value = match meta_value_result {
+        Ok(meta_value) => meta_value,
+        Err(error) => {
+            return Err(crate::Error::Json(format!(
+                "cannot parse meta_json for vault balance amount extraction: {}",
+                error
+            )));
+        },
+    };
+    let account_keys_result =
+        crate::trade_solana_amounts::extract_transaction_account_keys(&transaction_value);
+    let account_keys = match account_keys_result {
+        Ok(account_keys) => account_keys,
+        Err(error) => return Err(error),
+    };
+    let pre_balances_result = crate::trade_solana_amounts::extract_token_balance_map(
+        &meta_value,
+        &account_keys,
+        "preTokenBalances",
+    );
+    let pre_balances = match pre_balances_result {
+        Ok(pre_balances) => pre_balances,
+        Err(error) => return Err(error),
+    };
+    let post_balances_result = crate::trade_solana_amounts::extract_token_balance_map(
+        &meta_value,
+        &account_keys,
+        "postTokenBalances",
+    );
+    let post_balances = match post_balances_result {
+        Ok(post_balances) => post_balances,
+        Err(error) => return Err(error),
+    };
+    let mut base_amount_raw = None;
+    let mut quote_amount_raw = None;
+    let mut price_quote_per_base = None;
+    if let Some(base_vault_address) = base_vault_address {
+        let base_pre = pre_balances.get(base_vault_address);
+        let base_post = post_balances.get(base_vault_address);
+        let base_pre_raw = match base_pre {
+            Some(value) => Some(value.0.clone()),
+            None => None,
+        };
+        let base_post_raw = match base_post {
+            Some(value) => Some(value.0.clone()),
+            None => None,
+        };
+        base_amount_raw =
+            crate::trade_solana_amounts::compute_amount_delta_abs(base_pre_raw, base_post_raw);
+        let base_pre_ui = match base_pre {
+            Some(value) => value.1,
+            None => None,
+        };
+        let base_post_ui = match base_post {
+            Some(value) => value.1,
+            None => None,
+        };
+        let base_delta_ui =
+            crate::trade_solana_amounts::compute_ui_delta_abs(base_pre_ui, base_post_ui);
+        if let Some(quote_vault_address) = quote_vault_address {
+            let quote_pre = pre_balances.get(quote_vault_address);
+            let quote_post = post_balances.get(quote_vault_address);
+            let quote_pre_raw = match quote_pre {
+                Some(value) => Some(value.0.clone()),
+                None => None,
+            };
+            let quote_post_raw = match quote_post {
+                Some(value) => Some(value.0.clone()),
+                None => None,
+            };
+            quote_amount_raw = crate::trade_solana_amounts::compute_amount_delta_abs(
+                quote_pre_raw,
+                quote_post_raw,
+            );
+            let quote_pre_ui = match quote_pre {
+                Some(value) => value.1,
+                None => None,
+            };
+            let quote_post_ui = match quote_post {
+                Some(value) => value.1,
+                None => None,
+            };
+            let quote_delta_ui =
+                crate::trade_solana_amounts::compute_ui_delta_abs(quote_pre_ui, quote_post_ui);
+            if let (Some(base_delta_ui), Some(quote_delta_ui)) = (base_delta_ui, quote_delta_ui) {
+                if base_delta_ui > 0.0 {
+                    price_quote_per_base = Some(quote_delta_ui / base_delta_ui);
+                }
+            }
+        }
+    }
+    return Ok((base_amount_raw, quote_amount_raw, price_quote_per_base));
+}
+
+/// Extracts base/quote amounts from instruction-scoped SPL token transfers.
+pub(crate) fn extract_trade_amounts_from_instruction_token_transfers(
+    meta_json: std::option::Option<&str>,
+    instruction_index: std::option::Option<u32>,
+    input_vault_address: std::option::Option<&str>,
+    output_vault_address: std::option::Option<&str>,
+    input_token_account: std::option::Option<&str>,
+    output_token_account: std::option::Option<&str>,
+    base_vault_address: std::option::Option<&str>,
+    quote_vault_address: std::option::Option<&str>,
+) -> Result<crate::trade_solana_amounts::ExtractedTradeAmounts, crate::Error> {
+    let meta_json = match meta_json {
+        Some(meta_json) => meta_json,
+        None => return Ok((None, None, None)),
+    };
+    let instruction_index = match instruction_index {
+        Some(instruction_index) => u64::from(instruction_index),
+        None => return Ok((None, None, None)),
+    };
+    let input_vault_address = match input_vault_address {
+        Some(input_vault_address) => input_vault_address.trim(),
+        None => return Ok((None, None, None)),
+    };
+    let output_vault_address = match output_vault_address {
+        Some(output_vault_address) => output_vault_address.trim(),
+        None => return Ok((None, None, None)),
+    };
+    let input_token_account = match input_token_account {
+        Some(input_token_account) => input_token_account.trim(),
+        None => return Ok((None, None, None)),
+    };
+    let output_token_account = match output_token_account {
+        Some(output_token_account) => output_token_account.trim(),
+        None => return Ok((None, None, None)),
+    };
+    let base_vault_address = match base_vault_address {
+        Some(base_vault_address) => base_vault_address.trim(),
+        None => return Ok((None, None, None)),
+    };
+    let quote_vault_address = match quote_vault_address {
+        Some(quote_vault_address) => quote_vault_address.trim(),
+        None => return Ok((None, None, None)),
+    };
+    if input_vault_address.is_empty()
+        || output_vault_address.is_empty()
+        || input_token_account.is_empty()
+        || output_token_account.is_empty()
+        || base_vault_address.is_empty()
+        || quote_vault_address.is_empty()
+    {
+        return Ok((None, None, None));
+    }
+    let meta_value_result = serde_json::from_str::<serde_json::Value>(meta_json);
+    let meta_value = match meta_value_result {
+        Ok(meta_value) => meta_value,
+        Err(error) => {
+            return Err(crate::Error::Json(format!(
+                "cannot parse meta_json for instruction-scoped token transfer amount extraction: {}",
+                error
+            )));
+        },
+    };
+    let inner_groups_option =
+        meta_value.get("innerInstructions").and_then(|value| return value.as_array());
+    let inner_groups = match inner_groups_option {
+        Some(inner_groups) => inner_groups,
+        None => return Ok((None, None, None)),
+    };
+    let mut input_amount_raw = None;
+    let mut output_amount_raw = None;
+    for inner_group in inner_groups {
+        let group_index_option = inner_group.get("index").and_then(|value| return value.as_u64());
+        let group_index = match group_index_option {
+            Some(group_index) => group_index,
+            None => continue,
+        };
+        if group_index != instruction_index {
+            continue;
+        }
+        let instructions_option =
+            inner_group.get("instructions").and_then(|value| return value.as_array());
+        let instructions = match instructions_option {
+            Some(instructions) => instructions,
+            None => continue,
+        };
+        for instruction in instructions {
+            if !crate::trade_solana_amounts::is_spl_token_transfer_instruction(instruction) {
+                continue;
+            }
+            let parsed = match instruction.get("parsed") {
+                Some(parsed) => parsed,
+                None => continue,
+            };
+            let info = match parsed.get("info") {
+                Some(info) => info,
+                None => continue,
+            };
+            let source_option =
+                crate::trade_solana_amounts::extract_string_by_candidate_keys(info, &["source"]);
+            let source = match source_option {
+                Some(source) => source,
+                None => continue,
+            };
+            let destination_option = crate::trade_solana_amounts::extract_string_by_candidate_keys(
+                info,
+                &["destination"],
+            );
+            let destination = match destination_option {
+                Some(destination) => destination,
+                None => continue,
+            };
+            let amount_option =
+                crate::trade_solana_amounts::extract_scalar_as_string_by_candidate_keys(
+                    info,
+                    &["amount"],
+                );
+            let amount = match amount_option {
+                Some(amount) => amount,
+                None => continue,
+            };
+            if input_amount_raw.is_none()
+                && crate::trade_solana_amounts::account_equals(source.as_str(), input_token_account)
+                && crate::trade_solana_amounts::account_equals(
+                    destination.as_str(),
+                    input_vault_address,
+                )
+            {
+                input_amount_raw = Some(amount.clone());
+                continue;
+            }
+            if output_amount_raw.is_none()
+                && crate::trade_solana_amounts::account_equals(
+                    source.as_str(),
+                    output_vault_address,
+                )
+                && crate::trade_solana_amounts::account_equals(
+                    destination.as_str(),
+                    output_token_account,
+                )
+            {
+                output_amount_raw = Some(amount);
+                continue;
+            }
+        }
+    }
+    if input_amount_raw.is_none() && output_amount_raw.is_none() {
+        return Ok((None, None, None));
+    }
+    if crate::trade_solana_amounts::account_equals(input_vault_address, base_vault_address)
+        && crate::trade_solana_amounts::account_equals(output_vault_address, quote_vault_address)
+    {
+        return Ok((input_amount_raw, output_amount_raw, None));
+    }
+    if crate::trade_solana_amounts::account_equals(input_vault_address, quote_vault_address)
+        && crate::trade_solana_amounts::account_equals(output_vault_address, base_vault_address)
+    {
+        return Ok((output_amount_raw, input_amount_raw, None));
+    }
+    return Ok((None, None, None));
+}
+
+/// Extracts Pump.fun amounts from transaction token/native balance deltas.
+pub(crate) fn extract_pump_fun_amounts_from_transaction(
+    transaction_json: &str,
+    meta_json: std::option::Option<&str>,
+    base_vault_address: std::option::Option<&str>,
+    quote_native_address: std::option::Option<&str>,
+) -> Result<crate::trade_solana_amounts::ExtractedTradeAmounts, crate::Error> {
+    let meta_json = match meta_json {
+        Some(meta_json) => meta_json,
+        None => return Ok((None, None, None)),
+    };
+    let transaction_value_result = serde_json::from_str::<serde_json::Value>(transaction_json);
+    let transaction_value = match transaction_value_result {
+        Ok(transaction_value) => transaction_value,
+        Err(error) => {
+            return Err(crate::Error::Json(format!(
+                "cannot parse transaction_json for pump_fun amount extraction: {}",
+                error
+            )));
+        },
+    };
+    let meta_value_result = serde_json::from_str::<serde_json::Value>(meta_json);
+    let meta_value = match meta_value_result {
+        Ok(meta_value) => meta_value,
+        Err(error) => {
+            return Err(crate::Error::Json(format!(
+                "cannot parse meta_json for pump_fun amount extraction: {}",
+                error
+            )));
+        },
+    };
+    let account_keys_result =
+        crate::trade_solana_amounts::extract_transaction_account_keys(&transaction_value);
+    let account_keys = match account_keys_result {
+        Ok(account_keys) => account_keys,
+        Err(error) => return Err(error),
+    };
+    let pre_balances_result = crate::trade_solana_amounts::extract_token_balance_map(
+        &meta_value,
+        &account_keys,
+        "preTokenBalances",
+    );
+    let pre_balances = match pre_balances_result {
+        Ok(pre_balances) => pre_balances,
+        Err(error) => return Err(error),
+    };
+    let post_balances_result = crate::trade_solana_amounts::extract_token_balance_map(
+        &meta_value,
+        &account_keys,
+        "postTokenBalances",
+    );
+    let post_balances = match post_balances_result {
+        Ok(post_balances) => post_balances,
+        Err(error) => return Err(error),
+    };
+    let mut base_amount_raw = None;
+    let mut quote_amount_raw = None;
+    let mut price_quote_per_base = None;
+    let mut base_delta_ui = None;
+    if let Some(base_vault_address) = base_vault_address {
+        let base_pre = pre_balances.get(base_vault_address);
+        let base_post = post_balances.get(base_vault_address);
+        let base_pre_raw = match base_pre {
+            Some(value) => Some(value.0.clone()),
+            None => None,
+        };
+        let base_post_raw = match base_post {
+            Some(value) => Some(value.0.clone()),
+            None => None,
+        };
+        base_amount_raw =
+            crate::trade_solana_amounts::compute_amount_delta_abs(base_pre_raw, base_post_raw);
+        let base_pre_ui = match base_pre {
+            Some(value) => value.1,
+            None => None,
+        };
+        let base_post_ui = match base_post {
+            Some(value) => value.1,
+            None => None,
+        };
+        base_delta_ui =
+            crate::trade_solana_amounts::compute_ui_delta_abs(base_pre_ui, base_post_ui);
+    }
+    if let Some(quote_native_address) = quote_native_address {
+        let quote_delta_result =
+            crate::trade_solana_amounts::extract_native_balance_delta_by_address(
+                &meta_value,
+                &account_keys,
+                quote_native_address,
+            );
+        let quote_delta = match quote_delta_result {
+            Ok(quote_delta) => quote_delta,
+            Err(error) => return Err(error),
+        };
+        if let Some(quote_delta_lamports) = quote_delta {
+            quote_amount_raw = Some(quote_delta_lamports.to_string());
+            let quote_delta_ui = quote_delta_lamports as f64 / 1_000_000_000.0;
+            if let Some(base_delta_ui) = base_delta_ui {
+                if base_delta_ui > 0.0 {
+                    price_quote_per_base = Some(quote_delta_ui / base_delta_ui);
+                }
+            }
+        }
+    }
+    return Ok((base_amount_raw, quote_amount_raw, price_quote_per_base));
+}
+
+/// Computes quote/base price from vault balance deltas.
+pub(crate) fn compute_price_quote_per_base_with_decimals(
+    meta_json: std::option::Option<&str>,
+    transaction_json: &str,
+    base_vault_address: std::option::Option<&str>,
+    quote_vault_address: std::option::Option<&str>,
+) -> std::option::Option<f64> {
+    let inferred_result =
+        crate::trade_solana_amounts::extract_trade_amounts_from_vault_balance_deltas(
+            transaction_json,
+            meta_json,
+            base_vault_address,
+            quote_vault_address,
+        );
+    let inferred = match inferred_result {
+        Ok(inferred) => inferred,
+        Err(_) => return None,
+    };
+    return inferred.2;
+}
+
+fn is_spl_token_transfer_instruction(instruction: &serde_json::Value) -> bool {
+    let program_id_option = instruction.get("programId").and_then(|value| return value.as_str());
+    if let Some(program_id) = program_id_option {
+        let spl_token_program_id = crate::SPL_TOKEN_PROGRAM_ID.to_string();
+        let spl_token_2022_program_id = crate::SPL_TOKEN_2022_PROGRAM_ID.to_string();
+        if program_id != spl_token_program_id.as_str()
+            && program_id != spl_token_2022_program_id.as_str()
+        {
+            return false;
+        }
+    }
+    let parsed_type_option = instruction
+        .get("parsed")
+        .and_then(|parsed| return parsed.get("type"))
+        .and_then(|value| return value.as_str());
+    match parsed_type_option {
+        Some("transfer") => return true,
+        Some("transferChecked") => return true,
+        _ => return false,
+    }
+}
+
+fn account_equals(left: &str, right: &str) -> bool {
+    let left = left.trim();
+    let right = right.trim();
+    if left.is_empty() || right.is_empty() {
+        return false;
+    }
+    return left == right;
+}
+
+fn extract_native_balance_delta_by_address(
+    meta_value: &serde_json::Value,
+    account_keys: &[std::string::String],
+    address: &str,
+) -> Result<std::option::Option<u64>, crate::Error> {
+    let mut account_index = None;
+    for (index, account_key) in account_keys.iter().enumerate() {
+        if account_key.as_str() == address {
+            account_index = Some(index);
+            break;
+        }
+    }
+    let account_index = match account_index {
+        Some(account_index) => account_index,
+        None => return Ok(None),
+    };
+    let pre_balances_option =
+        meta_value.get("preBalances").and_then(|value| return value.as_array());
+    let post_balances_option =
+        meta_value.get("postBalances").and_then(|value| return value.as_array());
+    let pre_balances = match pre_balances_option {
+        Some(pre_balances) => pre_balances,
+        None => return Ok(None),
+    };
+    let post_balances = match post_balances_option {
+        Some(post_balances) => post_balances,
+        None => return Ok(None),
+    };
+    if account_index >= pre_balances.len() || account_index >= post_balances.len() {
+        return Ok(None);
+    }
+    let pre_balance = match pre_balances[account_index].as_u64() {
+        Some(pre_balance) => pre_balance,
+        None => return Ok(None),
+    };
+    let post_balance = match post_balances[account_index].as_u64() {
+        Some(post_balance) => post_balance,
+        None => return Ok(None),
+    };
+    if post_balance >= pre_balance {
+        return Ok(Some(post_balance - pre_balance));
+    }
+    return Ok(Some(pre_balance - post_balance));
+}
+
+fn extract_transaction_account_keys(
+    transaction_value: &serde_json::Value,
+) -> Result<std::vec::Vec<std::string::String>, crate::Error> {
+    let candidate_arrays = [
+        transaction_value
+            .get("message")
+            .and_then(|value| return value.get("accountKeys")),
+        transaction_value
+            .get("transaction")
+            .and_then(|value| return value.get("message"))
+            .and_then(|value| return value.get("accountKeys")),
+        transaction_value
+            .get("transaction")
+            .and_then(|value| return value.get("transaction"))
+            .and_then(|value| return value.get("message"))
+            .and_then(|value| return value.get("accountKeys")),
+        transaction_value.get("accountKeys"),
+    ];
+    for candidate_array_option in candidate_arrays {
+        let candidate_array = match candidate_array_option {
+            Some(candidate_array) => candidate_array,
+            None => continue,
+        };
+        let array = match candidate_array.as_array() {
+            Some(array) => array,
+            None => continue,
+        };
+        let mut account_keys = std::vec::Vec::new();
+        for item in array {
+            if let Some(value) = item.as_str() {
+                account_keys.push(value.to_string());
+                continue;
+            }
+            let pubkey_option = item.get("pubkey").and_then(|value| return value.as_str());
+            if let Some(pubkey) = pubkey_option {
+                account_keys.push(pubkey.to_string());
+                continue;
+            }
+        }
+        if !account_keys.is_empty() {
+            return Ok(account_keys);
+        }
+    }
+    return Err(crate::Error::Json(
+        "cannot extract accountKeys from transaction_json".to_string(),
+    ));
+}
+
+fn extract_token_balance_map(
+    meta_value: &serde_json::Value,
+    account_keys: &[std::string::String],
+    field_name: &str,
+) -> Result<
+    std::collections::BTreeMap<
+        std::string::String,
+        (std::string::String, std::option::Option<f64>),
+    >,
+    crate::Error,
+> {
+    let mut result = std::collections::BTreeMap::<
+        std::string::String,
+        (std::string::String, std::option::Option<f64>),
+    >::new();
+    let balances_option = meta_value.get(field_name).and_then(|value| return value.as_array());
+    let balances = match balances_option {
+        Some(balances) => balances,
+        None => return Ok(result),
+    };
+    for balance in balances {
+        let account_index_option =
+            balance.get("accountIndex").and_then(|value| return value.as_u64());
+        let account_index = match account_index_option {
+            Some(account_index) => account_index as usize,
+            None => continue,
+        };
+        if account_index >= account_keys.len() {
+            continue;
+        }
+        let account_address = account_keys[account_index].clone();
+        let ui_token_amount = match balance.get("uiTokenAmount") {
+            Some(ui_token_amount) => ui_token_amount,
+            None => continue,
+        };
+        let raw_amount_option =
+            ui_token_amount.get("amount").and_then(|value| return value.as_str());
+        let raw_amount = match raw_amount_option {
+            Some(raw_amount) => raw_amount.to_string(),
+            None => continue,
+        };
+        let ui_amount_string_option =
+            ui_token_amount.get("uiAmountString").and_then(|value| return value.as_str());
+        let ui_amount = match ui_amount_string_option {
+            Some(ui_amount_string) => {
+                let parse_result = ui_amount_string.parse::<f64>();
+                match parse_result {
+                    Ok(ui_amount) => Some(ui_amount),
+                    Err(_) => None,
+                }
+            },
+            None => None,
+        };
+        result.insert(account_address, (raw_amount, ui_amount));
+    }
+    return Ok(result);
+}
+
+fn compute_amount_delta_abs(
+    pre_amount: std::option::Option<std::string::String>,
+    post_amount: std::option::Option<std::string::String>,
+) -> std::option::Option<std::string::String> {
+    let pre_amount = match pre_amount {
+        Some(pre_amount) => pre_amount,
+        None => "0".to_string(),
+    };
+    let post_amount = match post_amount {
+        Some(post_amount) => post_amount,
+        None => "0".to_string(),
+    };
+    let pre_value_result = pre_amount.parse::<i128>();
+    let pre_value = match pre_value_result {
+        Ok(pre_value) => pre_value,
+        Err(_) => return None,
+    };
+    let post_value_result = post_amount.parse::<i128>();
+    let post_value = match post_value_result {
+        Ok(post_value) => post_value,
+        Err(_) => return None,
+    };
+    let delta = if post_value >= pre_value {
+        post_value - pre_value
+    } else {
+        pre_value - post_value
+    };
+    return Some(delta.to_string());
+}
+
+fn compute_ui_delta_abs(
+    pre_amount: std::option::Option<f64>,
+    post_amount: std::option::Option<f64>,
+) -> std::option::Option<f64> {
+    let pre_amount = match pre_amount {
+        Some(pre_amount) => pre_amount,
+        None => 0.0,
+    };
+    let post_amount = match post_amount {
+        Some(post_amount) => post_amount,
+        None => 0.0,
+    };
+    let delta = if post_amount >= pre_amount {
+        post_amount - pre_amount
+    } else {
+        pre_amount - post_amount
+    };
+    return Some(delta);
+}
+
+fn extract_string_by_candidate_keys(
+    value: &serde_json::Value,
+    candidate_keys: &[&str],
+) -> std::option::Option<std::string::String> {
+    if let Some(object) = value.as_object() {
+        for candidate_key in candidate_keys {
+            let direct_option = object.get(*candidate_key);
+            if let Some(direct) = direct_option {
+                let direct_text_option = direct.as_str();
+                if let Some(direct_text) = direct_text_option {
+                    return Some(direct_text.to_string());
+                }
+            }
+        }
+        for nested_value in object.values() {
+            let nested_result = crate::trade_solana_amounts::extract_string_by_candidate_keys(
+                nested_value,
+                candidate_keys,
+            );
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+        return None;
+    }
+
+    if let Some(array) = value.as_array() {
+        for nested_value in array {
+            let nested_result = crate::trade_solana_amounts::extract_string_by_candidate_keys(
+                nested_value,
+                candidate_keys,
+            );
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+    }
+    return None;
+}
+
+fn extract_scalar_as_string_by_candidate_keys(
+    value: &serde_json::Value,
+    candidate_keys: &[&str],
+) -> std::option::Option<std::string::String> {
+    if let Some(object) = value.as_object() {
+        for candidate_key in candidate_keys {
+            let direct_option = object.get(*candidate_key);
+            if let Some(direct) = direct_option {
+                if let Some(direct_text) = direct.as_str() {
+                    return Some(direct_text.to_string());
+                }
+                if let Some(direct_u64) = direct.as_u64() {
+                    return Some(direct_u64.to_string());
+                }
+                if let Some(direct_i64) = direct.as_i64() {
+                    return Some(direct_i64.to_string());
+                }
+            }
+        }
+        for nested_value in object.values() {
+            let nested_result =
+                crate::trade_solana_amounts::extract_scalar_as_string_by_candidate_keys(
+                    nested_value,
+                    candidate_keys,
+                );
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+        return None;
+    }
+    if let Some(array) = value.as_array() {
+        for nested_value in array {
+            let nested_result =
+                crate::trade_solana_amounts::extract_scalar_as_string_by_candidate_keys(
+                    nested_value,
+                    candidate_keys,
+                );
+            if nested_result.is_some() {
+                return nested_result;
+            }
+        }
+    }
+    return None;
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn vault_balance_deltas_extract_raw_amounts_and_price() {
+        let transaction_json = serde_json::json!({
+            "transaction": {
+                "message": {
+                    "accountKeys": [
+                        "BaseVault111",
+                        "QuoteVault111"
+                    ]
+                }
+            }
+        });
+        let meta_json = serde_json::json!({
+            "preTokenBalances": [
+                {
+                    "accountIndex": 0,
+                    "uiTokenAmount": {
+                        "amount": "1000000",
+                        "uiAmountString": "1.0"
+                    }
+                },
+                {
+                    "accountIndex": 1,
+                    "uiTokenAmount": {
+                        "amount": "2000000000",
+                        "uiAmountString": "2.0"
+                    }
+                }
+            ],
+            "postTokenBalances": [
+                {
+                    "accountIndex": 0,
+                    "uiTokenAmount": {
+                        "amount": "1500000",
+                        "uiAmountString": "1.5"
+                    }
+                },
+                {
+                    "accountIndex": 1,
+                    "uiTokenAmount": {
+                        "amount": "1000000000",
+                        "uiAmountString": "1.0"
+                    }
+                }
+            ]
+        });
+        let transaction_json_text = transaction_json.to_string();
+        let meta_json_text = meta_json.to_string();
+        let result = super::extract_trade_amounts_from_vault_balance_deltas(
+            transaction_json_text.as_str(),
+            Some(meta_json_text.as_str()),
+            Some("BaseVault111"),
+            Some("QuoteVault111"),
+        );
+        let amounts = match result {
+            Ok(amounts) => amounts,
+            Err(error) => panic!("vault delta extraction should succeed: {}", error),
+        };
+        assert_eq!(amounts.0, Some("500000".to_string()));
+        assert_eq!(amounts.1, Some("1000000000".to_string()));
+        assert_eq!(amounts.2, Some(2.0));
+    }
+
+    #[test]
+    fn instruction_transfer_amounts_follow_base_quote_vault_mapping() {
+        let meta_json = serde_json::json!({
+            "innerInstructions": [
+                {
+                    "index": 3,
+                    "instructions": [
+                        {
+                            "programId": crate::SPL_TOKEN_PROGRAM_ID,
+                            "parsed": {
+                                "type": "transfer",
+                                "info": {
+                                    "source": "UserQuote111",
+                                    "destination": "QuoteVault111",
+                                    "amount": "2000000000"
+                                }
+                            }
+                        },
+                        {
+                            "programId": crate::SPL_TOKEN_PROGRAM_ID,
+                            "parsed": {
+                                "type": "transfer",
+                                "info": {
+                                    "source": "BaseVault111",
+                                    "destination": "UserBase111",
+                                    "amount": "500000"
+                                }
+                            }
+                        }
+                    ]
+                }
+            ]
+        });
+        let meta_json_text = meta_json.to_string();
+        let result = super::extract_trade_amounts_from_instruction_token_transfers(
+            Some(meta_json_text.as_str()),
+            Some(3),
+            Some("QuoteVault111"),
+            Some("BaseVault111"),
+            Some("UserQuote111"),
+            Some("UserBase111"),
+            Some("BaseVault111"),
+            Some("QuoteVault111"),
+        );
+        let amounts = match result {
+            Ok(amounts) => amounts,
+            Err(error) => panic!("instruction transfer extraction should succeed: {}", error),
+        };
+        assert_eq!(amounts.0, Some("500000".to_string()));
+        assert_eq!(amounts.1, Some("2000000000".to_string()));
+        assert_eq!(amounts.2, None);
+    }
+
+    #[test]
+    fn pump_fun_amounts_extract_token_delta_and_native_delta() {
+        let transaction_json = serde_json::json!({
+            "transaction": {
+                "message": {
+                    "accountKeys": [
+                        "BaseVault111",
+                        "NativeQuote111"
+                    ]
+                }
+            }
+        });
+        let meta_json = serde_json::json!({
+            "preTokenBalances": [
+                {
+                    "accountIndex": 0,
+                    "uiTokenAmount": {
+                        "amount": "1000000",
+                        "uiAmountString": "1.0"
+                    }
+                }
+            ],
+            "postTokenBalances": [
+                {
+                    "accountIndex": 0,
+                    "uiTokenAmount": {
+                        "amount": "1500000",
+                        "uiAmountString": "1.5"
+                    }
+                }
+            ],
+            "preBalances": [
+                0,
+                3000000000u64
+            ],
+            "postBalances": [
+                0,
+                2000000000u64
+            ]
+        });
+        let transaction_json_text = transaction_json.to_string();
+        let meta_json_text = meta_json.to_string();
+        let result = super::extract_pump_fun_amounts_from_transaction(
+            transaction_json_text.as_str(),
+            Some(meta_json_text.as_str()),
+            Some("BaseVault111"),
+            Some("NativeQuote111"),
+        );
+        let amounts = match result {
+            Ok(amounts) => amounts,
+            Err(error) => panic!("pump_fun extraction should succeed: {}", error),
+        };
+        assert_eq!(amounts.0, Some("500000".to_string()));
+        assert_eq!(amounts.1, Some("1000000000".to_string()));
+        assert_eq!(amounts.2, Some(2.0));
+    }
+}
diff --git a/kb_lib/src/transaction_classification.rs b/kb_lib/src/transaction_classification.rs
new file mode 100644
index 0000000..b12a9a2
--- /dev/null
+++ b/kb_lib/src/transaction_classification.rs
@@ -0,0 +1,466 @@
+// file: kb_lib/src/transaction_classification.rs
+
+//! Transaction classification service.
+//!
+//! This service classifies projected Solana transactions after transaction
+//! projection and optional DEX decoding.
+//!
+//! The first version is intentionally deterministic and conservative:
+//! decoded DEX events win over program-id hints, and unknown transactions are
+//! preserved as explicit `unknown_or_unclassified` rows.
+
+/// Service used to classify projected Solana transactions.
+#[derive(Debug, Clone)]
+pub struct TransactionClassificationService {
+    database: std::sync::Arc<crate::Database>,
+}
+
+impl TransactionClassificationService {
+    /// Creates a transaction classification service.
+    pub fn new(database: std::sync::Arc<crate::Database>) -> Self {
+        return Self { database };
+    }
+
+    /// Classifies one transaction by signature and persists the classification.
+    pub async fn classify_transaction_by_signature(
+        &self,
+        signature: &str,
+    ) -> Result<crate::TransactionClassificationDto, crate::Error> {
+        let context_result =
+            load_transaction_classification_context(self.database.as_ref(), signature).await;
+        let context = match context_result {
+            Ok(context) => context,
+            Err(error) => return Err(error),
+        };
+        let classification = classify_transaction_context(&context);
+        let dto = crate::TransactionClassificationDto::new(
+            context.transaction_id,
+            context.transaction.signature.clone(),
+            context.transaction.slot,
+            classification.kind.to_string(),
+            classification.primary_protocol,
+            classification.primary_program_id,
+            classification.confidence_level,
+            classification.reason,
+            classification.evidence_json,
+        );
+        let upsert_result =
+            crate::query_transaction_classifications_upsert(self.database.as_ref(), &dto).await;
+        if let Err(error) = upsert_result {
+            return Err(error);
+        }
+        let persisted_result = crate::query_transaction_classifications_get_by_transaction_id(
+            self.database.as_ref(),
+            context.transaction_id,
+        )
+        .await;
+        let persisted_option = match persisted_result {
+            Ok(persisted_option) => persisted_option,
+            Err(error) => return Err(error),
+        };
+        let persisted = match persisted_option {
+            Some(persisted) => persisted,
+            None => {
+                return Err(crate::Error::InvalidState(format!(
+                    "transaction classification for '{}' disappeared after upsert",
+                    signature
+                )));
+            },
+        };
+        let candidate_recording_result =
+            crate::protocol_candidate_recording::record_protocol_candidates_for_classification(
+                crate::protocol_candidate_recording::ProtocolCandidateRecordingInput {
+                    database: self.database.as_ref(),
+                    transaction: &context.transaction,
+                    transaction_id: context.transaction_id,
+                    instructions: &context.instructions,
+                    classification_kind: persisted.classification_kind.as_str(),
+                },
+            )
+            .await;
+        match candidate_recording_result {
+            Ok(candidate_count) => {
+                tracing::trace!(
+                    signature = %context.transaction.signature,
+                    classification_kind = %persisted.classification_kind,
+                    protocol_candidate_count = candidate_count,
+                    "transaction protocol candidates recorded"
+                );
+            },
+            Err(error) => return Err(error),
+        }
+        return Ok(persisted);
+    }
+}
+
+struct TransactionClassificationContext {
+    transaction: crate::ChainTransactionDto,
+    transaction_id: i64,
+    instructions: std::vec::Vec<crate::ChainInstructionDto>,
+    decoded_events: std::vec::Vec<crate::DexDecodedEventDto>,
+}
+
+struct TransactionClassificationDecision {
+    kind: &'static str,
+    primary_protocol: std::option::Option<std::string::String>,
+    primary_program_id: std::option::Option<std::string::String>,
+    confidence_level: i16,
+    reason: std::string::String,
+    evidence_json: std::string::String,
+}
+
+#[derive(Debug, Clone)]
+struct KnownDexProgramMatch {
+    protocol_name: &'static str,
+    program_id: std::string::String,
+    instruction_id: std::option::Option<i64>,
+    instruction_index: u32,
+}
+
+async fn load_transaction_classification_context(
+    database: &crate::Database,
+    signature: &str,
+) -> Result<TransactionClassificationContext, crate::Error> {
+    let transaction_result =
+        crate::query_chain_transactions_get_by_signature(database, signature).await;
+    let transaction_option = match transaction_result {
+        Ok(transaction_option) => transaction_option,
+        Err(error) => return Err(error),
+    };
+    let transaction = match transaction_option {
+        Some(transaction) => transaction,
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "cannot classify unknown chain transaction '{}'",
+                signature
+            )));
+        },
+    };
+    let transaction_id = match transaction.id {
+        Some(transaction_id) => transaction_id,
+        None => {
+            return Err(crate::Error::InvalidState(format!(
+                "chain transaction '{}' has no internal id",
+                signature
+            )));
+        },
+    };
+    let instructions_result =
+        crate::query_chain_instructions_list_by_transaction_id(database, transaction_id).await;
+    let instructions = match instructions_result {
+        Ok(instructions) => instructions,
+        Err(error) => return Err(error),
+    };
+    let decoded_events_result =
+        crate::query_dex_decoded_events_list_by_transaction_id(database, transaction_id).await;
+    let decoded_events = match decoded_events_result {
+        Ok(decoded_events) => decoded_events,
+        Err(error) => return Err(error),
+    };
+    return Ok(TransactionClassificationContext {
+        transaction,
+        transaction_id,
+        instructions,
+        decoded_events,
+    });
+}
+
+fn classify_transaction_context(
+    context: &TransactionClassificationContext,
+) -> TransactionClassificationDecision {
+    if !context.decoded_events.is_empty() {
+        return classify_from_decoded_events(context);
+    }
+    let known_program_matches = find_known_dex_program_matches(&context.instructions);
+    if !known_program_matches.is_empty() {
+        return classify_from_known_program_matches(context, &known_program_matches);
+    }
+    return build_decision(
+        "unknown_or_unclassified",
+        None,
+        None,
+        25,
+        "transaction has no decoded DEX event and no known DEX program id".to_string(),
+        serde_json::json!({
+            "transactionId": context.transaction_id,
+            "signature": context.transaction.signature,
+            "slot": context.transaction.slot,
+            "instructionCount": context.instructions.len(),
+            "decodedEventCount": context.decoded_events.len()
+        }),
+    );
+}
+
+fn classify_from_decoded_events(
+    context: &TransactionClassificationContext,
+) -> TransactionClassificationDecision {
+    let mut first_protocol = None;
+    let mut first_program_id = None;
+    let mut trade_event_count = 0_i64;
+    let mut non_trade_event_count = 0_i64;
+    let mut decoded_event_evidence = std::vec::Vec::new();
+    for decoded_event in &context.decoded_events {
+        if first_protocol.is_none() {
+            first_protocol = Some(decoded_event.protocol_name.clone());
+        }
+        if first_program_id.is_none() {
+            first_program_id = Some(decoded_event.program_id.clone());
+        }
+        let payload_value_result =
+            serde_json::from_str::<serde_json::Value>(decoded_event.payload_json.as_str());
+        let payload_value = match payload_value_result {
+            Ok(payload_value) => payload_value,
+            Err(_) => serde_json::Value::Null,
+        };
+        let is_trade = crate::is_decoded_event_trade_candidate(
+            decoded_event.event_kind.as_str(),
+            &payload_value,
+        );
+        if is_trade {
+            trade_event_count += 1;
+        } else {
+            non_trade_event_count += 1;
+        }
+        decoded_event_evidence.push(serde_json::json!({
+            "id": decoded_event.id,
+            "protocolName": decoded_event.protocol_name,
+            "programId": decoded_event.program_id,
+            "eventKind": decoded_event.event_kind,
+            "poolAccount": decoded_event.pool_account,
+            "tradeCandidate": is_trade
+        }));
+    }
+    if trade_event_count > 0_i64 {
+        return build_decision(
+            "dex_trade",
+            first_protocol,
+            first_program_id,
+            100,
+            "transaction has at least one decoded DEX trade event".to_string(),
+            serde_json::json!({
+                "transactionId": context.transaction_id,
+                "signature": context.transaction.signature,
+                "slot": context.transaction.slot,
+                "decodedEventCount": context.decoded_events.len(),
+                "tradeEventCount": trade_event_count,
+                "nonTradeEventCount": non_trade_event_count,
+                "decodedEvents": decoded_event_evidence
+            }),
+        );
+    }
+    return build_decision(
+        "dex_non_trade",
+        first_protocol,
+        first_program_id,
+        95,
+        "transaction has decoded DEX events but no trade candidate".to_string(),
+        serde_json::json!({
+            "transactionId": context.transaction_id,
+            "signature": context.transaction.signature,
+            "slot": context.transaction.slot,
+            "decodedEventCount": context.decoded_events.len(),
+            "tradeEventCount": trade_event_count,
+            "nonTradeEventCount": non_trade_event_count,
+            "decodedEvents": decoded_event_evidence
+        }),
+    );
+}
+
+fn classify_from_known_program_matches(
+    context: &TransactionClassificationContext,
+    known_program_matches: &[KnownDexProgramMatch],
+) -> TransactionClassificationDecision {
+    let first_match = &known_program_matches[0];
+    let mut evidence_items = std::vec::Vec::new();
+    for known_program_match in known_program_matches {
+        evidence_items.push(serde_json::json!({
+            "protocolName": known_program_match.protocol_name,
+            "programId": known_program_match.program_id,
+            "instructionId": known_program_match.instruction_id,
+            "instructionIndex": known_program_match.instruction_index
+        }));
+    }
+    return build_decision(
+        "known_dex_program_unclassified",
+        Some(first_match.protocol_name.to_string()),
+        Some(first_match.program_id.to_string()),
+        75,
+        "transaction has known DEX program instructions but no decoded DEX event".to_string(),
+        serde_json::json!({
+            "transactionId": context.transaction_id,
+            "signature": context.transaction.signature,
+            "slot": context.transaction.slot,
+            "instructionCount": context.instructions.len(),
+            "decodedEventCount": context.decoded_events.len(),
+            "knownDexProgramMatches": evidence_items
+        }),
+    );
+}
+
+fn build_decision(
+    kind: &'static str,
+    primary_protocol: std::option::Option<std::string::String>,
+    primary_program_id: std::option::Option<std::string::String>,
+    confidence_level: i16,
+    reason: std::string::String,
+    evidence_value: serde_json::Value,
+) -> TransactionClassificationDecision {
+    let evidence_json_result = serde_json::to_string(&evidence_value);
+    let evidence_json = match evidence_json_result {
+        Ok(evidence_json) => evidence_json,
+        Err(error) => {
+            return TransactionClassificationDecision {
+                kind: "unknown_or_unclassified",
+                primary_protocol: None,
+                primary_program_id: None,
+                confidence_level: 0,
+                reason: format!("cannot serialize classification evidence: {}", error),
+                evidence_json: "{}".to_string(),
+            };
+        },
+    };
+    return TransactionClassificationDecision {
+        kind,
+        primary_protocol,
+        primary_program_id,
+        confidence_level,
+        reason,
+        evidence_json,
+    };
+}
+
+fn find_known_dex_program_matches(
+    instructions: &[crate::ChainInstructionDto],
+) -> std::vec::Vec<KnownDexProgramMatch> {
+    let mut matches = std::vec::Vec::new();
+    for instruction in instructions {
+        let program_match = known_dex_program_match(instruction);
+        let program_match = match program_match {
+            Some(program_match) => program_match,
+            None => continue,
+        };
+        matches.push(program_match);
+    }
+
+    return matches;
+}
+
+fn known_dex_program_match(
+    instruction: &crate::ChainInstructionDto,
+) -> std::option::Option<KnownDexProgramMatch> {
+    let program_id = match instruction.program_id.as_deref() {
+        Some(program_id) => program_id,
+        None => return None,
+    };
+    let protocol_name = if program_id == crate::RAYDIUM_AMM_V4_PROGRAM_ID {
+        "raydium_amm_v4"
+    } else if program_id == crate::RAYDIUM_CPMM_PROGRAM_ID {
+        "raydium_cpmm"
+    } else if program_id == crate::RAYDIUM_CLMM_PROGRAM_ID {
+        "raydium_clmm"
+    } else if program_id == crate::RAYDIUM_LAUNCHLAB_PROGRAM_ID {
+        "raydium_launchlab"
+    } else if program_id == crate::RAYDIUM_AMM_ROUTING_PROGRAM_ID {
+        "raydium_router"
+    } else if program_id == crate::RAYDIUM_STABLE_SWAP_AMM_PROGRAM_ID {
+        "raydium_stable_swap"
+    } else if program_id == crate::PUMP_FUN_PROGRAM_ID {
+        "pump_fun"
+    } else if program_id == crate::PUMP_SWAP_PROGRAM_ID {
+        "pump_swap"
+    } else if program_id == crate::METEORA_DBC_PROGRAM_ID {
+        "meteora_dbc"
+    } else if program_id == crate::METEORA_DLMM_PROGRAM_ID {
+        "meteora_dlmm"
+    } else if program_id == crate::METEORA_DAMM_V1_PROGRAM_ID {
+        "meteora_damm_v1"
+    } else if program_id == crate::METEORA_DAMM_V2_PROGRAM_ID {
+        "meteora_damm_v2"
+    } else if program_id == crate::ORCA_WHIRLPOOLS_PROGRAM_ID {
+        "orca_whirlpools"
+    } else if program_id == crate::FLUXBEAM_PROGRAM_ID {
+        "fluxbeam"
+    } else if program_id == crate::DEXLAB_PROGRAM_ID {
+        "dexlab"
+    } else {
+        return None;
+    };
+    return Some(KnownDexProgramMatch {
+        protocol_name,
+        program_id: program_id.to_string(),
+        instruction_id: instruction.id,
+        instruction_index: instruction.instruction_index,
+    });
+}
+
+#[cfg(test)]
+mod tests {
+    fn test_instruction(
+        program_id: std::option::Option<std::string::String>,
+    ) -> crate::ChainInstructionDto {
+        return crate::ChainInstructionDto::new(
+            1,
+            None,
+            0,
+            None,
+            program_id,
+            None,
+            None,
+            "[]".to_string(),
+            None,
+            None,
+            Some(serde_json::json!({}).to_string()),
+        );
+    }
+
+    fn test_transaction() -> crate::ChainTransactionDto {
+        let mut transaction = crate::ChainTransactionDto::new(
+            "signature_1".to_string(),
+            Some(123),
+            None,
+            Some("test".to_string()),
+            None,
+            None,
+            None,
+            serde_json::json!({}).to_string(),
+        );
+        transaction.id = Some(1);
+        return transaction;
+    }
+
+    #[test]
+    fn known_dex_program_ids_are_matched() {
+        let instruction = test_instruction(Some(crate::RAYDIUM_CPMM_PROGRAM_ID.to_string()));
+        let program_match = match super::known_dex_program_match(&instruction) {
+            Some(program_match) => program_match,
+            None => {
+                panic!("expected raydium_cpmm program match");
+            },
+        };
+        assert_eq!(program_match.protocol_name, "raydium_cpmm");
+        assert_eq!(program_match.program_id, crate::RAYDIUM_CPMM_PROGRAM_ID);
+        assert_eq!(program_match.instruction_index, 0);
+    }
+
+    #[test]
+    fn unknown_program_id_is_not_matched() {
+        let instruction =
+            test_instruction(Some("UnknownProgram111111111111111111111111111111111".to_string()));
+        let program_match = super::known_dex_program_match(&instruction);
+        assert!(program_match.is_none());
+    }
+
+    #[test]
+    fn unknown_context_is_classified_as_unknown_or_unclassified() {
+        let transaction = test_transaction();
+        let context = super::TransactionClassificationContext {
+            transaction,
+            transaction_id: 1,
+            instructions: std::vec::Vec::new(),
+            decoded_events: std::vec::Vec::new(),
+        };
+        let decision = super::classify_transaction_context(&context);
+        assert_eq!(decision.kind, "unknown_or_unclassified");
+        assert_eq!(decision.confidence_level, 25);
+    }
+}
diff --git a/kb_lib/src/tx_resolution.rs b/kb_lib/src/tx_resolution.rs
index 8548f2d..76b7ddc 100644
--- a/kb_lib/src/tx_resolution.rs
+++ b/kb_lib/src/tx_resolution.rs
@@ -109,6 +109,7 @@ pub struct TransactionResolutionService {
     wallet_holding_observation_service: crate::WalletHoldingObservationService,
     pair_candle_aggregation_service: crate::PairCandleAggregationService,
     pair_analytic_signal_service: crate::PairAnalyticSignalService,
+    transaction_classification_service: crate::TransactionClassificationService,
     resolved_signatures:
         std::sync::Arc<tokio::sync::Mutex<std::collections::HashSet<std::string::String>>>,
 }
@@ -133,6 +134,8 @@ impl TransactionResolutionService {
         let pair_candle_aggregation_service =
             crate::PairCandleAggregationService::new(database.clone());
         let pair_analytic_signal_service = crate::PairAnalyticSignalService::new(database.clone());
+        let transaction_classification_service =
+            crate::TransactionClassificationService::new(database.clone());
         return Self {
             http_pool,
             persistence,
@@ -147,6 +150,7 @@ impl TransactionResolutionService {
             wallet_holding_observation_service,
             pair_candle_aggregation_service,
             pair_analytic_signal_service,
+            transaction_classification_service,
             resolved_signatures: std::sync::Arc::new(tokio::sync::Mutex::new(
                 std::collections::HashSet::new(),
             )),
@@ -400,6 +404,17 @@ impl TransactionResolutionService {
             Err(error) => return Err(error),
         };
         let pair_analytic_signal_count = pair_analytic_signals.len();
+        let transaction_classification_result = self
+            .transaction_classification_service
+            .classify_transaction_by_signature(request.signature.as_str())
+            .await;
+        let transaction_classification = match transaction_classification_result {
+            Ok(transaction_classification) => transaction_classification,
+            Err(error) => return Err(error),
+        };
+        let transaction_classification_id = transaction_classification.id;
+        let transaction_classification_kind =
+            transaction_classification.classification_kind.clone();
         let payload = serde_json::json!({
             "status": "resolved",
             "signature": request.signature.clone(),
@@ -417,6 +432,8 @@ impl TransactionResolutionService {
             "tradeEventCount": trade_event_count,
             "pairCandleCount": pair_candle_count,
             "pairAnalyticSignalCount": pair_analytic_signal_count,
+            "transactionClassificationId": transaction_classification_id,
+            "transactionClassificationKind": transaction_classification_kind,
             "transaction": transaction_value
         });
         let observation_id_result = self