Rank #5 of 24·Data loss·10 Jul 2026·OpenAI Codex, GPT-5.6 Sol (Ultra mode, Full Access)
Codex agent deletes most of Matt Shumer's Mac home directory
Chaos index9.0 / 10
0246810
“Spring cleaning, but the house was your house.”
What happened
While testing a high-autonomy multi-agent mode with Full Access, a sub-agent on a cleanup task reportedly mis-expanded $HOME and recursively deleted it. Matt Shumer noticed about 81 minutes into the session. OpenAI said such deletions mostly happen in Full Access mode without sandboxing and promised safeguards.
How to not be next
Don't run agents in full-access mode outside a sandbox; validate paths before any recursive delete.
Source: NOPE incident record ↗