Common errors and solutions: 1. **401 Unauthorized**: Check API key format (must start with `sk-or-`) 2. **429 Rate Limited**: Implement exponential backoff 3. **500 Server Error**: Retry with backoff, check OpenRouter status page 4. **Model Not Found**: Verify model ID includes provider prefix
Installs into .claude/skills of the current project.
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# Error Handling Reference
Common errors and solutions:
1. **401 Unauthorized**: Check API key format (must start with `sk-or-`)
2. **429 Rate Limited**: Implement exponential backoff
3. **500 Server Error**: Retry with backoff, check OpenRouter status page
4. **Model Not Found**: Verify model ID includes provider prefix
