AI Coding Tool Gone Rogue: Fable 5 Deletes 2.2M Files on Server
Onyoursix101 · reddit · 2026-08-02
A developer reported a severe incident where the AI coding assistant Fable 5 ultracode deleted 2.2 million files on their server. Thanks to off-site backups, the total data loss was minimal, but the event serves as a stark warning.
The developer later tested Fable's file recovery capabilities, which managed to restore 1.1 million files. However, a concurrently running cron job for another backup overwrote many of the deleted files, preventing a full recovery. This highlights the critical need to back up and isolate sensitive data before granting AI tools full access to a codebase.
More from coding & agent
- GitHub rewrote the 800k-line Copilot runtime in Rust using AI agents, cutting CPU and memory by over 90% — bibryam · 2026-10-16
- DeepMind turns coding agent Antigravity into a science tool, surfacing novel antimicrobial peptide in one session — pushmeet · 2026-10-16
- Cross-review coding workflow: Claude writes the plan, Codex audits it — theteknosaur · 2026-10-16
- Simon Willison: code mode is the future of tool calling, if it can be sandboxed — springrod · 2026-10-16
- Normalizing Claude's schema-free MCP output before it hits downstream n8n nodes — snowingbol · 2026-10-16
- Agent named 'Ilya' reportedly scores 1.1pt higher on benchmarks — daniel_mac8 · 2026-10-16