Recommended Context7 Prompt Structure for Accurate Documentation

To retrieve accurate, version-specific documentation using Context7, structure your prompt using a three-step pattern: write a natural language request, append the trigger token use context7, and optionally specify a library ID or version.

Context7, developed by Upstash, is an MCP server that fetches up-to-date documentation directly into your LLM's context window. Following the recommended Context7 prompt structure ensures the system resolves the correct library and eliminates hallucinations caused by outdated training data. This guide explains the exact pattern implemented in the upstash/context7 repository.

The Three-Step Context7 Prompt Pattern

According to the project documentation in docs/overview.mdx (lines 32-34), Context7 operates on a simple three-step prompt pattern. This structure ensures the MCP client recognizes when to invoke the documentation retrieval tool and which library to target.

Step 1: Write Your Request in Natural Language

Begin by describing your task or question exactly as you would ask a human developer. The packages/mcp/README.md (lines 37-40) emphasizes that you should write your prompt naturally without trying to force specific keywords or syntax at the beginning.

How do I implement middleware in Next.js that validates JWT tokens from cookies?

Step 2: Add the Trigger Token

Append the specific trigger token use context7 to your prompt. This token signals the MCP client to invoke the Context7 server and inject the retrieved documentation into the LLM's context. The main README.md (lines 23-27) demonstrates this pattern with a concrete example showing the token placement at the end of the prompt.

Create a React hook for data fetching with error handling. use context7

Step 3: Specify Library ID or Version (Optional)

For precise control, specify the exact library using slash syntax (/owner/repo or /library/id) or mention a specific version number. The docs/tips.mdx file (lines 6-38) details these advanced options for skipping automatic library matching and pinning documentation to specific releases.

Set up Supabase authentication in a Next.js 14 project. use library /supabase/supabase for API and docs.

How do I configure Tailwind CSS v3.4 with custom themes? use context7

Context7 Prompt Examples

The following examples from the repository documentation illustrate the complete prompt structure in action:

Basic natural language request with trigger:

Create a Next.js middleware that checks for a valid JWT in cookies
and redirects unauthenticated users to `/login`. use context7

With explicit library ID (skips auto-matching):

Implement basic authentication with Supabase. use library /supabase/supabase for API and docs.

With version specification:

How do I set up Next.js 14 middleware? use context7

Source File Implementation Details

The prompt structure is explicitly defined in the following source files:

• docs/overview.mdx (lines 32-34): Summarizes the three-step pattern and explains how Context7 resolves libraries and versions.
• docs/tips.mdx (lines 6-38): Provides advanced guidance on library ID syntax (/owner/repo), version pinning, and troubleshooting prompt formatting.
• README.md (lines 23-27): Contains the minimal working example demonstrating the use context7 trigger token placement.
• packages/mcp/README.md (lines 37-40): Emphasizes writing prompts in natural language without forced syntax.

Summary

• Context7 injects up-to-date documentation directly into your LLM's prompt window via an MCP server.
• The recommended prompt structure follows three steps: write naturally, append use context7, and optionally specify library IDs or versions.
• Use slash syntax (/owner/repo) to bypass automatic library matching when you know the exact repository.
• Reference the docs/overview.mdx and docs/tips.mdx files for the canonical implementation details.

Frequently Asked Questions

What is the exact trigger token for Context7?

The trigger token is use context7. According to the README.md (lines 23-27), appending this exact phrase to your prompt signals the MCP client to invoke the Context7 server and inject retrieved documentation into the context window.

How do I specify a specific library version in a Context7 prompt?

Mention the version number naturally in your request, such as "Next.js 14" or "Tailwind CSS v3.4". The docs/tips.mdx file (lines 6-38) explains that Context7 parses version mentions to fetch documentation for specific releases rather than the latest version.

Can I use Context7 without specifying a library ID?

Yes. If you omit the library ID, Context7 attempts to auto-resolve the library based on the content of your natural language request. However, as noted in docs/tips.mdx, explicitly specifying the library ID using slash syntax (/owner/repo) eliminates ambiguity and ensures faster, more accurate retrieval.

Where is the official prompt structure documented in the source code?

The canonical three-step pattern is documented in docs/overview.mdx (lines 32-34), with additional implementation details in docs/tips.mdx (lines 6-38). The README.md (lines 23-27) and packages/mcp/README.md (lines 37-40) provide practical examples and emphasize natural language prompt writing.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}