Picture the moment a teammate clicks save on a vibe-coded invoice summary and the toast turns green. The notes column is an empty string, yet every layer reported success in its own narrow way. The browser trusted the API, the API trusted the provider, and the provider returned choices with no text. Have you ever debugged that kind of quiet success, or do you still treat 200 as done? I take a hard position on this, and I do not think the polite middle is useful. An empty completion is a faile...