[BUG] Getting too many Opus 5.5 (1M context)'s safeguards flagged this session

Status Open
Reported on v2.1.281
Maintainer reply None cached
Activity 2 comments · opened Sep 24, 2026

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?

When i started multiple agents to go through a github branch which i cloned localy and is not yet merged with the main branch , i asked to go through new code and look for potential crashes and create a bug report as i am a databse tester in mariadb

I am getting too many

Opus 5.5 (1M context)'s safeguards flagged this session. You may be seeing this for the first time on an Opus model: Opus 5.5 (1M context) is more capable and has stronger safeguards as
  a result, which can sometimes flag non-cybersecurity work. We're improving these safeguards to reduce the amount of incorrectly flagged messages. Edit and retry, or continue with Opus
  4.8. Send feedback with /feedback or learn more: https://support.claude.com/en/articles/8106465

  Details: `[cyber]`

What Should Happen?

it starts in beginning and starts finding issues then it stops , it should not stop

Error Messages/Logs

Steps to Reproduce

i already told in description

it is happening for opus 5.5

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.281 (Claude Code)

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

_No response_

View original on GitHub ↗

This issue has 2 comments on GitHub. Read the full discussion on GitHub ↗