html/wiki/V52-capability-mode-wevia-chat.md

V52 - Capability Mode + Business Intent Separation

Bug V51

wevia-chat V50 orchestrator-first avait faux positifs intents quand queries mentionnaient HCP/ethica dans contexte capability (React, schema, etc). LLM system prompt trop restrictif = refus de generer SVG.

Fix V52 - 3-Tier Routing

1. CAPABILITY detection first (keywords: react|jsx|tsx|mermaid|svg|pdf|cahier|python...) → LLM deep mode with "DOIS generer" prompt
2. BUSINESS INTENT (orchestrator data) requires business keyword + intent match → combien|status|etat|nombre|liste
3. FALLBACK LLM pour smalltalk

E2E Validated (real tests)

• React/TS/SVG/Mermaid/Python: capability mode works
• combien HCP Maroc: orchestrator -> 146694 (real Ethica)
• status vistex: orchestrator -> vault contacts
• Hello: LLM fallback smalltalk

Files

• /var/www/html/api/wevia-chat.php (7011 bytes, V52 promoted)
• GOLD: wevia-chat.php.GOLD-20260417-224218-pre-v52-capability
• GOLD v50 aussi preserved pour rollback 2-deep

For next Claude

• Capability keywords list extensible in $capability_keywords array
• Business intent requires BOTH intent fire AND query keyword
• 3 GOLD backups chain: v50, v52 preserves progression