[BUG] alliterative nonsense words trigger policy violation

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

<img width="959" height="914" alt="Image" src="https://github.com/user-attachments/assets/7c757810-9abb-45ee-8f47-02a29d98588e" />

I give claude code perfectly innocent words, your filters block them and tells me to rewind and then won't let me rewind

from Claude after i told it and showed it the screenshot i've added to this post: That's a genuine false positive -- alliterative nonsense words aren't policy violations. The filter misfired, and then the rewind failed on top of it, which is a bad combination.

The right place to report this is the issue tracker: github.com/anthropics/claude-code/issues. Include the Request ID (req_011CcAJEk6B32PvEDqGAi28k) -- that lets them pull the exact event and trace why it triggered. False positives with a specific request ID are actionable for the team.

What Should Happen?

Claude should not be blocked from reading the nonsense string and commenting on it

Error Messages/Logs

Steps to Reproduce

give claude this nonsense string:
captious chirk chirk, chirk cadgeon calash, carving contretemps callipygian, chirk coterie chawbacon, canorous colossal clams, catawampus coral crevices, carbuncle caliginous cargo, captivating chirk cantankerous, cacophony cajuput.

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

4.6

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_