name: Context7 Usage description: This skill should be used when the user asks to "check documentation", "latest API", "library docs", "context7", or needs up-to-date library documentation. Provides Context7 MCP usage patterns.

Context7 MCP Documentation Retrieval

Tools

resolve-library-id

Resolve package name to Context7-compatible library ID. Must call before query-docs unless ID is known.

query-docs

Fetch documentation with parameters:

• libraryId - From resolve-library-id (e.g., /facebook/react)
• query - Specific question or topic

Common Library IDs

• React: /facebook/react
• Next.js: /vercel/next.js
• TypeScript: /microsoft/typescript
• NixOS: /nixos/nixpkgs
• Home Manager: /nix-community/home-manager

Usage Patterns

Specific Feature Lookup

query-docs libraryId="/facebook/react" query="useState hook usage"

General Overview

query-docs libraryId="/vercel/next.js" query="getting started app router"

Verify Codebase Usage

1. Use Serena to find current library usage
2. Query Context7 for latest documentation
3. Compare usage with documented best practices

Critical Rules

• Always resolve library ID before fetching documentation
• Prefer libraries with trust score 7+ (quality indicator)
• Use specific queries to get relevant results
• Combine with Serena for codebase verification workflows

Anti-Patterns to Avoid

• Skipping ID resolution (causes lookup failures)
• Using incorrect/outdated library names
• Ignoring trust scores (low scores = unreliable docs)