Install JMAP Email in Goose

What you need first

• Goose, installed.
• Docker, which gives the docker command the server starts with.
• Your own values for YOUR_JMAP_SESSION_URL,YOUR_JMAP_AUTH_TOKEN.

Steps

1. Open ~/.config/goose/config.yaml. On Windows it is %APPDATA%\Block\goose\config\config.yaml.
2. Add this entry. If the file already has extensions, add only the entry inside it.

extensions:
  "jmap-mcp":
    type: stdio
    name: "jmap-mcp"
    enabled: true
    cmd: "docker"
    args: ["run", "-i", "--rm", "-e", "JMAP_SESSION_URL", "-e", "JMAP_AUTH_TOKEN", "ghcr.io/mikluko/jmap-mcp:0.10.0"]
    env_keys: []
    envs: { "JMAP_SESSION_URL": "YOUR_JMAP_SESSION_URL", "JMAP_AUTH_TOKEN": "YOUR_JMAP_AUTH_TOKEN" }
    timeout: 300

3. Replace YOUR_JMAP_SESSION_URL,YOUR_JMAP_AUTH_TOKEN with your own values.
4. Save the file and start a new Goose session.

Check it worked

Ask Goose: List the tools of jmap-mcp.

If it does not start

Cannot connect to the Docker daemon

Docker is not running. Start it, then restart Goose.

The server starts, but its tools fail

A YOUR_… placeholder is still in the config, or its value is wrong.

Nothing changes after a restart

The file is not valid YAML any more. Check that the entry is indented like the lines around it.