Fetch current documentation for external libraries through the Context7 API. Use it to check API signatures, implementation patterns, best practices, version-specific behavior, or library-specific errors before coding or debugging, reducing reliance on outdated information.
Fetch up-to-date library documentation via Context7 API. Use PROACTIVELY when: (1) Working with ANY external library (React, Next.js, Supabase, etc.) (2) User asks about library APIs, patterns, or best practices (3) Implementing features that rely on third-party packages (4) Debugging library-specific issues (5) Need current documentation beyond training data cutoff Always prefer this over guessing library APIs or using outdated knowledge.
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See how to installReview the instructions the agent will receive before you install.
Retrieve current library documentation via Context7 API.
python3 ~/.claude/skills/context7/scripts/context7.py search "<library-name>"
Example:
python3 ~/.claude/skills/context7/scripts/context7.py search "next.js"
Returns library metadata including the id field needed for step 2.
python3 ~/.claude/skills/context7/scripts/context7.py context "<library-id>" "<query>"
Example:
python3 ~/.claude/skills/context7/scripts/context7.py context "/vercel/next.js" "app router middleware"
Options:
--type txt|md - Output format (default: txt)--tokens N - Limit response tokens| Task | Command |
|---|---|
| Find React docs | search "react" |
| Get React hooks info | context "/facebook/react" "useEffect cleanup" |
| Find Supabase | search "supabase" |
| Get Supabase auth | context "/supabase/supabase" "authentication row level security" |
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