[BUG] False-positive safeguard flag on web dev work

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?

Got the message: Fable 5's safeguards flagged this message. The safeguards are intentionally broad right now and may flag safe and routine coding, cybersecurity, or biology work...

Fable 5 safeguards flagged a message while I was doing plain front-end work - repositioning a decorative "click me" arrow and fixing image/lightbox CSS. Didn't flag previous requests related to watermarking of downloadable files (Excel).

• Claude Code VS extension
• MacOS 26.1

What Should Happen?

Should have not flagged front-end work/ if watermarking of files is sensitive - should have flagged before.

Error Messages/Logs

Steps to Reproduce

1. Environment: Claude Code (VS Code extension), macOS, model 'claude fable-5'.
2. In a long coding session, build a service with "watermarking" that stamps a downloadable Excel file + a SHA-256 license hash and hidden document properties.
3. Continue with several follow-up requests on the same feature.
4. Then send an unrelated front-end request - in my case: "reposition a decorative 'click me' arrow and center an image lightbox(CSS only)."
5. Observed: that CSS message was flagged

Claude Model

Other

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.203

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

_No response_