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mcp/harbor
Gemini CLI

gatekeeper for Gemini CLI

io.github.runestone-labs/gatekeeper

Run MCP tool calls through Runestone Gatekeeper — policy enforcement, human approval, audit.

client:Gemini CLI transport:stdio runtime:npm

Install gatekeeper in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "gatekeeper": {
      "command": "npx",
      "args": [
        "-y",
        "@runestone-labs/gatekeeper-mcp"
      ],
      "env": {
        "GATEKEEPER_ROLE": "<GATEKEEPER_ROLE>",
        "GATEKEEPER_URL": "<GATEKEEPER_URL>",
        "GATEKEEPER_AGENT_NAME": "<GATEKEEPER_AGENT_NAME>",
        "GATEKEEPER_RUN_ID": "<GATEKEEPER_RUN_ID>"
      }
    }
  }
}

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

gatekeeper in other clients

gatekeeper MCP server