Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/gabrielmoreira/agent-skills-mirrornpx agentmods add skills/gabrielmoreira/agent-skills-mirror/read-githubWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/gabrielmoreira/agent-skills-mirror/read-github)<a href="https://agentmods.dev/skills/gabrielmoreira/agent-skills-mirror/read-github"><img src="https://agentmods.dev/badge/skills/gabrielmoreira/agent-skills-mirror/read-github/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/gabrielmoreira/agent-skills-mirror/read-github"><img src="https://agentmods.dev/badge/skills/gabrielmoreira/agent-skills-mirror/read-github.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00078 | $0.00629 |
| Opus 5 | $0.00039 | $0.00315 |
| Sonnet 5 | $0.00016 | $0.00126 |
| Haiku 4.5 | $0.00008 | $0.00063 |
Grade A, and why
read-github scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 95 lines · 78 tokens per session scan A 0fd103db57b1
read-github is a skill published in the GitHub repository gabrielmoreira/agent-skills-mirror (17 stars, last pushed yesterday), licensed MIT. It adds 78 tokens to every session and 629 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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