Quickstart

Add it to your agent

npx -y @sylphx/lockdocs setup

setup detects Claude Code, Codex, Cursor, VS Code, VS Code Insiders, Claude Desktop, Windsurf and Gemini CLI, writes each one's MCP config, and prints every change. It is idempotent. --dry-run shows what it would do, --remove undoes it, --client cursor,codex limits it, and --fetch registers the server with fetching enabled.

Restart the client, then ask:

Use lockdocs: which version of zod do we use, and how do I reject unknown keys?

The agent calls resolve, then docs with package: "zod", and gets the answer for your version, cited to the installed file.

Use it from a terminal

Inside any project with dependencies installed:

npx -y @sylphx/lockdocs resolve                       # every pinned version and whether its docs are here
npx -y @sylphx/lockdocs zod "reject unknown keys"     # docs for the pinned zod
npx -y @sylphx/lockdocs api tokio::spawn              # exact signature + doc comment
npx -y @sylphx/lockdocs zod                           # overview: key API and README

For a faster start, install it: npm i -g @sylphx/lockdocs, then run lockdocs ....

Manual MCP config

{
  "mcpServers": {
    "lockdocs": { "command": "npx", "args": ["-y", "@sylphx/lockdocs", "mcp"] }
  }
}

The server answers for the client's workspace root (from MCP roots), else LOCKDOCS_ROOT, else its working directory. Every tool also accepts root.