[Bug] Safeguards incorrectly flag legitimate discussion of thinking process

Bug Description
This is a little bit of a ridiculous edge case on the safeguards. I shared my thinking and said the word "thinking", then the safeguards flagged me as trying to extract reasoning traces from Claude. We need to allow basic colleague behavior, including me explaining my own thought process to Claude without getting flagged.

Environment Info

• Platform: linux
• Terminal: xterm-256color
• Version: 2.1.281
• Feedback ID: d2af34e5-c896-484e-866c-8489843191cf

Errors
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_011CfSP5CJYGmrAotPQjd4oH