Gatekeeper

Official

by Runestone-Labs · TypeScript

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

Topics

agent-governanceai-agentsai-securityguardrailsllm-safetymcppolicy-enginetool-useai-safetyclaudehuman-in-the-loopmcp-servermodel-context-protocoltypescript

Install

Configuration

Environment variables

GATEKEEPER_ROLErequired

Policy role this server presents to Gatekeeper for every call. Required.

GATEKEEPER_URL

Base URL of the Gatekeeper server. Default http://127.0.0.1:3847.

GATEKEEPER_AGENT_NAME

Agent name recorded in Gatekeeper audit logs. Default mcp-client.

GATEKEEPER_RUN_ID

Optional run-correlation id so calls count toward one per-run budget.

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "gatekeeper": {
      "command": "npx",
      "args": [
        "-y",
        "@runestone-labs/gatekeeper-mcp@0.1.1"
      ],
      "env": {
        "GATEKEEPER_ROLE": "<YOUR_GATEKEEPER_ROLE>",
        "GATEKEEPER_URL": "<YOUR_GATEKEEPER_URL>",
        "GATEKEEPER_AGENT_NAME": "<YOUR_GATEKEEPER_AGENT_NAME>",
        "GATEKEEPER_RUN_ID": "<YOUR_GATEKEEPER_RUN_ID>"
      }
    }
  }
}