An on-demand source of current documentation and code examples for software libraries and frameworks. It runs locally through an npm package.

Use it when writing, debugging, or explaining code that depends on a library or framework and needs current reference material.

It helps avoid answers based on outdated information or examples from before a library changed.

context7 — MCP server by ymm-oss

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add mcp/ymm-oss/fsl/context7

Clone the repo

git clone --depth 1 https://github.com/ymm-oss/fsl

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin 100% copy Near-identical to another mod in the catalogue.

Security

Grade A, and why

context7 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 2d 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.

Origin

This is a copy

100% identical to context7 — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.mcp.json · 9 lines

What it actually says

{
  "context7": {
    "command": "npx",
    "args": [
      "-y",
      "@upstash/context7-mcp"
    ]
  }
}

Changes

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.

2d ago First seen · 9 lines scan A 6f9d71bbe560

Subscribe to this mod's changes

context7 is an MCP server published in the GitHub repository ymm-oss/fsl (21 stars, last pushed 4d ago), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. It is 100% identical to context7, differing in 2 lines, and is treated as a copy.

Data and AI Debugging LLM Writing and docs bounded-model-checking formal-methods formal-specification model-checking python

context7

Getting it into your agent

Grade A, and why

Nothing flagged

This is a copy

What it actually says

What this file has done since we first saw it

Other mcp servers, from other repositories

formal-proof-mcp

plain-example

schemabrain

multisim-mcp

multidim-mcp

civic-agent-kit