How to install read-github
npx skills add https://github.com/am-will/codex-skills --skill read-githubFull instructions (SKILL.md)
Source of truth, from am-will/codex-skills.
name: read-github description: | Read and search GitHub repository documentation via gitmcp.io MCP service.
WHEN TO USE:
- User provides a GitHub URL
- User mentions a specific repo in owner/repo format
- User asks "what does this repo do?", "read the docs for X repo", or similar
- User wants to search code or docs within a repo
Read GitHub Docs
Access GitHub repository documentation and code via the gitmcp.io MCP service.
URL Conversion
Convert GitHub URLs to gitmcp.io:
github.com/owner/repo→gitmcp.io/owner/repohttps://github.com/karpathy/llm-council→https://gitmcp.io/karpathy/llm-council
CLI Usage
The scripts/gitmcp.py script provides CLI access to repository docs.
List Available Tools
python3 scripts/gitmcp.py list-tools owner/repo
Fetch Documentation
Retrieves the full documentation file (README, docs, etc.):
python3 scripts/gitmcp.py fetch-docs owner/repo
Search Documentation
Semantic search within repository documentation:
python3 scripts/gitmcp.py search-docs owner/repo "query"
Search Code
Search code using GitHub Search API (exact match):
python3 scripts/gitmcp.py search-code owner/repo "function_name"
Fetch Referenced URL
Fetch content from URLs mentioned in documentation:
python3 scripts/gitmcp.py fetch-url owner/repo "https://example.com/doc"
Direct Tool Call
Call any MCP tool directly:
python3 scripts/gitmcp.py call owner/repo tool_name '{"arg": "value"}'
Tool Names
Tool names are dynamically prefixed with the repo name (underscored):
karpathy/llm-council→fetch_llm_council_documentationfacebook/react→fetch_react_documentationmy-org/my-repo→fetch_my_repo_documentation
Available MCP Tools
For any repository, these tools are available:
- fetch_{repo}_documentation - Fetch entire documentation. Call first for general questions.
- search_{repo}_documentation - Semantic search within docs. Use for specific queries.
- search_{repo}_code - Search code via GitHub API (exact match). Returns matching files.
- fetch_generic_url_content - Fetch any URL referenced in docs, respecting robots.txt.
Workflow
- When given a GitHub repo, first fetch documentation to understand the project
- Use search-docs for specific questions about usage or features
- Use search-code to find implementations or specific functions
- Use fetch-url to retrieve external references mentioned in docs
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