every test passed. i still shipped three bugs

three bugs an ai wrote for me this week. every test green. all three would've paged me in prod:

1. webhook retried → charged the customer twice

2. subscription.activated arrived before subscription.created → they paid, app said not entitled

3. a stale event flipped a canceled sub back to active → free access, forever

none of these show up in a 200. you find them from a customer — or you fire the ugly event orders on purpose and find them first.

we now throw every ordering + every duplicate at your handler and hand back the exact sequence that broke it.

which of these has bitten you? (i've shipped #1 myself. be honest ...)