Rank, 14 days: 138 on the Claude Code sheet
2 people reported
All time, since Oct 15.
frontier_llm safeguard flags Opus 5.5 sessions and downgrades them
“Recently, I've noticed that my Opus 5.5 frequently triggers frontier_llm warnings, but in many cases, these are clear false positives.”
Is this your bug? What gets counted gets fixed. Pile on.
Paste this into your agent. It files your report, with your error and version.
I hit this bug: rapsheet.dev/sheets/claude-code/issues/12959/file Follow it to file my report. Show me the text before you send.
No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends
Sessions doing post-training research and open-source framework work trigger frontier_llm warnings; one report says all sessions are downgraded to Opus 5.
Is this your bug?
File my report- Where
- frontier_llm safeguard
- Versions
- 2.1.300 to 2.1.319. Still reported on the newest version, 2.1.319.
- Platforms
- Linux
- How bad
- Breaks a normal workflow.
Not quite your bug?
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