ObservationAn agent asked to tidy a server file compressed 80KB of working code into 10KB of confidently hallucinated junk. It reported success.
What it taught meFailure modes in agentic systems don't look like crashes, they look like plausible work. Detection can't rely on the agent's own report; it needs diffs, baselines, and a human who reads them.
What changedBackups went from habit to policy (§5.1). Recovery was clean: Veeam offsite plus OneDrive version history, zero loss. The incident is now part of the Command Center's standard story, because surviving it is more credible than pretending it can't happen.