I keep seeing the same pattern. Someone builds an "AI agent" for infrastructure monitoring — it answers questions about Prometheus metrics, pulls logs from ELK, suggests restarts. Impressive in a demo. Then you push on it: what happens when its logs query times out mid-investigation? What happens when the context window fills up while correlating signals across four systems? What happens when a tool call hallucinates a metric name that doesn't quite exist? Usually it doesn't fail catastrophically. It fails quietly, in ways that are hard to debug. And quiet failures during incident response are the worst kind.