Semanticscholar Skill

| Error | Cause | Fix | |-------|-------|-----| | HTTPError 403 | Missing or invalid API key | Verify S2_API_KEY is set: echo $S2_API_KEY | | HTTPError 429 after 5 retries | Sustained rate limit exceeded | Wait 60s, reduce max_results, or split into smaller batches | | ModuleNotFoundError: s2 | Skill directory not on path | Verify skill is installed at ~/.claude/skills/ or ~/.openclaw/skills/ | | ModuleNotFoundError: requests | requests not installed | pip install requests or uv pip install requests | | 0 results returned | Query too specific or filters too narrow | Broaden query, remove filters, try search_relevance() instead of search_bulk() | | KeyError: 'data' | Endpoint returned error object | Check r.get("message") for API error details | | tldr field is empty | Not all papers have TLDR | Fall back to abstract field; bulk search never returns tldr |