Your agent refused. Politely. Correctly. Then it refunded $240 on an order that wasn't the user's. No test failed. The transcript looked perfect. The bug only showed up in the tool call. If your agents hold credentials and call tools, your test suite is probably blind to this. TL;DR Judge actions, not words. Assert on tool calls and system state. One try proves nothing. A bug that fires 10% of the time slips past a single test 90% of the time. Every failure becomes a test. Otherw...