Your agent invents a hotel amenity that was never in the search results. The test says PASS, because all it checked was that a hotel came back. Across a conversation it gets worse: turn one is safe, turn five gives advice it should never give. You get zero-shot detection that needs no labeled data, per-turn scoring that shows drift while it happens, and a lifecycle hook that swaps an unsafe answer for a safe one before the user sees it, plus the monitoring setup to watch it in production.

Outline:
• Introduction: The Silent Failure Problem
• Part 1: Zero-Shot Hallucination Detection
• Part 2: Trajectory-Level Safety Drift Monitoring
• Part 3: Real-Time Guardrails with Lifecycle Hooks
• Production Monitoring and Q&A