[Bug] Anthropic API Error: Safeguards flagged message with Claude 3.5 Sonnet
Status Open
Reported on v2.1.280
Maintainer reply None cached
Activity 0 comments · opened Sep 28, 2026
WHY AM I SEEING THIS??? I AM NOT TRYING TO EXTRACT ANYTHING. I'm just trying to create another session to take on a new topic. That's what 'Cell birth' refers to and does here locally.
Bug Description
API Error: Opus 5.5 (1M context)'s safeguards flagged this message
(https://www.anthropic.com/legal/aup). This sometimes happens with safe, normal conversations. Claude
Code can't respond to this message with Opus 5.5 (1M context).
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/8106465
Details: [reasoning_extraction]
Request ID: req_011CfUsvnLJqutz6ZaX8MNo6
Environment Info
- Platform: darwin
- Terminal: tmux
- Version: 2.1.280
- Feedback ID: 160da6e0-1893-4e58-8fdd-e5a971c4fae6
Errors
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