Gemini CLI Director's Lookbook lint_hand

How to: Gemini CLI Director's Lookbook lint_hand

client:Gemini CLI transport:streamable-http tool:lint_hand

Add Director's Lookbook to Gemini CLI

01
Open ~/.gemini/settings.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "directors-lookbook": {
      "httpUrl": "https://lookbook-mcp.riverroadlabs.workers.dev/mcp"
    }
  }
}

02
Save the file and restart Gemini CLI.
03
Ask for something lint_hand does. Gemini CLI lists the server's tools on connect and calls lint_hand itself — you do not invoke it by name.
04
If nothing happens, check the server is running and that Director's Lookbook's identifier in your config matches the one above exactly.

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 11 October 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.

Director's Lookbook MCP server