claude-plugins/external_plugins/context7

Context7 Plugin

Up-to-date, version-specific documentation and code examples for any library, directly in your AI coding assistant.

What is Context7?

Context7 solves the problem of outdated training data and hallucinated APIs by providing real-time library documentation. Instead of relying on potentially outdated knowledge, Context7 fetches current documentation straight from source repositories.

Without Context7:

• Code examples based on outdated training data
• Hallucinated APIs that don't exist
• Generic answers for old package versions

With Context7:

• Current documentation from source repositories
• Working code examples
• Version-specific information
• Intelligent query-based context selection

Available Tools

resolve-library-id

Search and resolve library names to Context7-compatible library IDs.

Parameters:
- libraryName: Library name to search for (e.g., "react", "next.js")
- query: Your question for relevance ranking

Returns:
- id: Context7-compatible ID (e.g., "/vercel/next.js")
- title: Display name
- description: Short description
- totalSnippets: Documentation coverage
- benchmarkScore: Quality indicator (0-100)
- versions: Available versions

query-docs

Fetch documentation with intelligent, query-based reranking.

Parameters:
- libraryId: Context7-compatible library ID
  - Format: /org/project (e.g., /vercel/next.js)
  - With version: /org/project/version (e.g., /vercel/next.js/v15.1.8)
- query: Specific question or task

Features:
- LLM-driven reranking based on query intent
- Deduplicated snippet selection
- Limited to 3 calls per question

Usage

Automatic (Skill)

The documentation-lookup skill triggers automatically when you:

• Ask "how do I..." for any library
• Need code generation with a specific library
• Ask about setup or configuration
• Mention any framework (React, Next.js, Vue, etc.)

Manual (Command)

Use the /context7:docs command:

/context7:docs react hooks
/context7:docs next.js how to set up authentication
/context7:docs /vercel/next.js/v15.1.8 app router

Agent

Use the docs-researcher agent for focused documentation lookups that don't bloat the main conversation:

Spawn a docs-researcher agent to find React Query mutation examples

Version Pinning

For consistent, reproducible results, use version-specific library IDs:

/vercel/next.js/v15.1.8
/facebook/react/v18.3.0
/prisma/prisma/v5.0.0

Examples

Basic usage:

How do I set up authentication in Next.js?
→ Automatically fetches Next.js auth documentation

With specific version:

/context7:docs /vercel/next.js/v15.1.8 middleware
→ Fetches Next.js 15.1.8 middleware documentation

Multiple libraries:

How do I use Prisma with Next.js API routes?
→ Fetches relevant docs from both Prisma and Next.js

Links

• Context7 Website
• GitHub Repository
• Upstash