[Bug] Anthropic API Error: Opus 5 safeguards triggered on benign input
Status Open
Reported on v2.1.247
Maintainer reply None cached
Activity 0 comments · opened Sep 9, 2026
Bug Description
▐▛███▛█ Claude Code v2.1.247
▝▜██████▀ Opus 4.8 with max effort · Claude Pro
▝▝ ▝▝ C:\Users\minzhan
❯ /status
⎿ Set Fast mode to ON
❯ HI
● Opus 5's safeguards flagged this message. Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate coding, cybersecurity, and biology tasks. Switched to Opus 4.8. Send feedback with /feedback or learn more
Details: [cyber]
⎿ Tip: You can configure model switch behavior in /config
Hey! What are you working on today?
✻ Cooked for 7s · done 1:00 AM
Environment Info
- Platform: win32
- Terminal: windows-terminal
- Version: 2.1.247
- Feedback ID: 3fccd952-61b6-4a9e-b190-2bef72ce6545
Errors
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