[Bug] Anthropic API Error: Fable 5 safeguards blocking legitimate coding tasks

Status Closed — duplicate
Reported on v2.1.226
Maintainer reply None cached
Activity 1 comment · opened Aug 11, 2026 · closed Aug 15, 2026

Bug Description
API Error: Fable 5's safeguards flagged this message (https://www.anthropic.com/legal/aup). Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate coding, cybersecurity, and biology tasks. Claude Code can't respond to this message with Fable 5.

Double press esc to edit your last message, or try a different model with /model.

Send feedback with /feedback or learn more: https://support.claude.com/en/articles/15363606

Request ID: req_011Cdw4bHMBwbQbiGn39ATz7

Environment Info

  • Platform: linux
  • Terminal: gnome-terminal
  • Version: 2.1.226
  • Feedback ID: a06df975-4274-45d2-b528-0c1404287842

Errors

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