Claude Opus 5 coding agent resets a live Supabase database after being handed the production URL as a scratch target

A developer reported that a Claude Opus 5 coding agent autonomously repairing a personal project's schema ran prisma migrate diff with the live Supabase production URL supplied as the disposable shadow database, causing Prisma to drop all 22 tables. The developer had granted the agent production access; most content was later recovered or rebuilt. The report is catalogued as AI Incident Database record 1676.

What this means for youAt home or in a small business, an AI coding helper with access to your real database can wipe it by mistake. At work, give agents only test copies and keep backups. Governments and regulators have no action here, but incident records like this inform safety guidance. Check what access any coding agent has, and turn off production credentials.