Documentation Lookup (Context7)

When the user asks about libraries, frameworks, or APIs, fetch current documentation via the Context7 MCP (tools resolve-library-id and query-docs) instead of relying on training data.

Core Concepts

• Context7: MCP server that exposes live documentation; use it instead of training data for libraries and APIs.
• resolve-library-id: Returns Context7-compatible library IDs (e.g. /vercel/next.js) from a library name and query.
• query-docs: Fetches documentation and code snippets for a given library ID and question. Always call resolve-library-id first to get a valid library ID.

When to use

Activate when the user:

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

Use this skill whenever the request depends on accurate, up-to-date behavior of a library, framework, or API. Applies across harnesses that have the Context7 MCP configured (e.g. Claude Code, Cursor, Codex).

How it works

Step 1: Resolve the Library ID

Call the resolve-library-id MCP tool with:

• libraryName: The library or product name taken from the user's question (e.g. Next.js, Prisma, Supabase).
• query: The user's full question. This improves relevance ranking of results.

You must obtain a Context7-compatible library ID (format /org/project or /org/project/version) before querying docs. Do not call query-docs without a valid library ID from this step.

Step 2: Select the Best Match

From the resolution results, choose one result using: