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context7

Fetch up-to-date library documentation via Context7 API. Use PROACTIVELY when: (1) Working with ANY external library (React, Next.js, Supabase, etc.) (2) User asks about library APIs, patterns, or best practices (3) Implementing features that rely on third-party packages (4) Debugging library-specific issues (5) Need current documentation beyond training data cutoff (6) AND MOST IMPORTANTLY, when you are installing dependencies, libraries, or frameworks you should ALWAYS check the docs to see what the latest versions are. Do not rely on outdated knowledge. Always prefer this over guessing library APIs or using outdated knowledge.

Install with Tessl CLI

npx tessl i github:am-will/codex-skills --skill context7
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Context7 Documentation Fetcher

Retrieve current library documentation via Context7 API.

IMPORTANT: CONTEXT7_API_KEY IS STORED IN THE .env FILE IN THE SKILL FOLDER THAT THE CONTEXT7 SKILL IS INSTALLED IN. SEARCH FOR IT THERE. .env FILES ARE HIDDEN FILES.

Example: ~/.agents/skills/context7/.env ~/.claude/skills/context7/.env

Workflow

1. Search for the library

python3 ~/.codex/skills/context7/scripts/context7.py search "<library-name>"

Example:

python3 ~/.codex/skills/context7/scripts/context7.py search "next.js"

Returns library metadata including the id field needed for step 2.

2. Fetch documentation context

python3 ~/.codex/skills/context7/scripts/context7.py context "<library-id>" "<query>"

Example:

python3 ~/.codex/skills/context7/scripts/context7.py context "/vercel/next.js" "app router middleware"

Options:

  • --type txt|md - Output format (default: txt)
  • --tokens N - Limit response tokens

Quick Reference

TaskCommand
Find React docssearch "react"
Get React hooks infocontext "/facebook/react" "useEffect cleanup"
Find Supabasesearch "supabase"
Get Supabase authcontext "/supabase/supabase" "authentication row level security"

When to Use

  • Before implementing any library-dependent feature
  • When unsure about current API signatures
  • For library version-specific behavior
  • To verify best practices and patterns
Repository
am-will/codex-skills
Last updated
Created

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