mcpField
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documentation-lookup

documentation-lookup

github.com/upstashDevelopment63.9k1.4k installsUpdated today
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About documentation-lookup

A skill that directs assistants to use Context7 for current library documentation and code examples. It covers resolving a library, selecting an appropriate match, and querying its docs.

Key features

  1. 01Resolve library IDs
  2. 02Rank matching documentation
  3. 03Fetch docs for a question
  4. 04Prefer version-specific results
  5. 05Favor official sources

Use cases

  1. 01Answering framework setup questions
  2. 02Writing code with library APIs
  3. 03Looking up API references

MCP support

The skill uses Context7 tools to resolve library IDs and retrieve documentation.

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/upstash/context7 --skill documentation-lookup

After installing, type/documentation-lookupin Claude Code to confirm it loaded.

Details

From the project README

When the user asks about libraries, frameworks, or needs code examples, use Context7 to fetch current documentation instead of relying on training data.

When to Use This Skill

Activate this skill when the user:

  • Asks setup or configuration questions ("How do I configure Next.js middleware?")
  • Requests code involving libraries ("Write a Prisma query for...")
  • Needs API references ("What are the Supabase auth methods?")
  • Mentions specific frameworks (React, Vue, Svelte, Express, Tailwind, etc.)

How to Fetch Documentation

Step 1: Resolve the Library ID

Call resolve-library-id with:

  • libraryName: The library name extracted from the user's question
  • query: The user's full question (improves relevance ranking)
Step 2: Select the Best Match

From the resolution results, choose based on:

  • Exact or closest name match to what the user asked for
  • Higher benchmark scores indicate better documentation quality
  • If the user mentioned a version (e.g., "React 19"), prefer version-specific IDs
Step 3: Fetch the Documentation

Call query-docs with:

  • libraryId: The selected Context7 library ID (e.g., /vercel/next.js)
  • query: The user's specific question
Step 4: Use the Documentation

Incorporate the fetched documentation into your response:

  • Answer the user's question using current, accurate information
  • Include relevant code examples from the docs
  • Cite the library version when relevant

Guidelines

  • Be specific: Pass the user's full question as the query for better results
  • Version awareness: When users mention versions ("Next.js 15", "React 19"), use version-specific library IDs if available from the resolution step
  • Prefer official sources: When multiple matches exist, prefer official/primary packages over community forks

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