Policy chatbot (RAG) — synthetic case
Says EUR 30 (policy v3); current v4 says EUR 40
Wrong expense claims, lost trust
Warning banner + fallback for travel questions
Ingestion gap: v4 not indexed (Medium)
Ranking: v3 outranks v4 (Medium)
Model picks v3 from mixed context (Low)
Retrieval trace for the failing question
Contain, then investigate — no rollback
Banner → trace → audit → smallest fix → regression test
Original case passes; zero old-version citations
People Ops + AI platform lead