@crustjs/mcp

Serve a Crust CLI as MCP tools over stdio

mcpExtension({ app }) adds <cli> mcp, which serves every action-bearing, visible command as a tool through typed app.run(), and <cli> mcp config, which prints the client configuration snippet. createMcpServer(app) and serveStdio(server) are the headless primitives; toolsFromSnapshot(snapshot) is the pure JSON Schema tool manifest.

Install

npm install @crustjs/mcp

Client configuration

<cli> mcp config prints the snippet for the process that runs it: a compiled binary is its own command; a source entry or bundle is relaunched through its runtime.

my-cli mcp config                   # Claude Code / Claude Desktop (default)
my-cli mcp config --client cursor   # Cursor
my-cli mcp config --client vscode   # VS Code (.vscode/mcp.json)

{ "mcpServers": { "my-cli": { "type": "stdio", "command": "my-cli", "args": ["mcp"] } } }

VS Code reads the same entry under servers. Claude Code can also register it directly:

claude mcp add my-cli -- my-cli mcp

Documentation

Full docs: crustjs.com/docs/modules/mcp