diff --git a/CLAUDE.md b/CLAUDE.md
index 7fec583c3..916e61937 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -42,8 +42,9 @@ Modular framework with Kit-pattern utilities:
 ### Content & Localization
 
 - **Assets/GameContent/**: Runtime assets by scope (`Common/`, `UI/`, `Scene_{Name}/`, `Feature_{Name}/`)
-- **Assets/Language/**: Unity Localization tables (`Dialog/`, `ActorName/`, `UIText/`, `Locales/`, `Sprite/`)
+- **Assets/Language/**: Unity Localization tables (runtime active: `UIText/`, `Locales/`, `Sprite/`; `Dialog/`、`ActorName/`、`Params/` currently kept as migration backups)
 - **Assets/Resources/Yarn/**: Current Yarn dialogue files (target migration to `Assets/Narrative/` per spec, not yet complete)
+- **Assets/StreamingAssets/Config/**: CSV-driven localized gameplay data (`character.csv` for actor names, `params.csv` for `l10n.*` substitution terms)
 - **Assets/Prototype/**: HTML/JS prototypes for mechanic testing
 
 ## Critical Dependencies
@@ -109,7 +110,7 @@ Modular framework with Kit-pattern utilities:
 
 ### Adding Yarn Dialogue
 1. Create `.yarn` in `Assets/Resources/Yarn/{Module}/`
-2. Add Dialog string tables in `Assets/Language/Dialog/`
+2. Ensure YarnProject localization assets/CSV are updated (Unity `Assets/Language/Dialog/` is backup-only during migration)
 3. Reference in scene's `DialogueRunner`; test with `DialogController`
 
 ## Debugging & Performance