What this error means
API Error: Claude Code is unable to respond to this request, which appears to violate our Usage Policy is a Claude Code failure pattern reported for developers trying to fix claude code false positive usage policy violation that blocks all queries on opus 4.7. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.
Why this happens
Widespread reports on HN (2026-04-17, 2026-04-26) and GitHub (claude-code#59540, #59469, #59402) of Claude Code Opus 4.7 returning usage policy violations on benign queries. Users report even 'what is going on' triggers the error. Category mapping: Claude Code → AI Coding Tools per SKILL.md.
Common causes
- Widespread reports on HN (2026-04-17, 2026-04-26) and GitHub (claude-code#59540, #59469, #59402) of Claude Code Opus 4.7 returning usage policy violations on benign queries. Users report even 'what is going on' triggers the error. Category mapping: Claude Code → AI Coding Tools per SKILL.md.
Quick fixes
- Confirm the exact error signature matches
API Error: Claude Code is unable to respond to this request, which appears to violate our Usage Policy. - Check the Claude Code account, local tool state, and provider configuration involved in the failing workflow.
- Compare the failing environment with a known working setup, then change one configuration value at a time.
Platform/tool-specific checks
- Verify the command, editor, extension, or API client that produced the error.
- Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
- Avoid deleting credentials, local model data, or project settings until the failing scope is clear.
Step-by-step troubleshooting
- Capture the exact error message and the command, editor action, or request that triggered it.
- Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
- Review the source evidence below and compare it with your environment.
- Apply one change at a time and rerun the smallest failing action.
- Keep the working fix documented for the team or deployment environment.
How to prevent it
- Keep provider/tool configuration documented.
- Record non-secret diagnostics such as tool version, provider name, model name, and command path.
- Add a lightweight check before CI or production workflows depend on the tool.