gatekeeper
io.github.Runestone-Labs/gatekeeper
About gatekeeper
gatekeeper is an MCP server published by the GitHub account Runestone-Labs. Run MCP tool calls through Runestone Gatekeeper — policy enforcement, human approval, audit.
It runs on your own machine: your AI client starts it from the npm package @runestone-labs/gatekeeper-mcp at version 0.1.2.
It asks for no keys or passwords.
It also needs GATEKEEPER_ROLE set before it starts.
Version 0.1.2 was published on 5 September 2026, and the source code is public, so you can read it before installing.
Written from the registry entry. 9 automated checks on the registry entry and the package code: 7 pass, 0 warn, 0 fail, 2 info. How we check.
What it asks for
| Variable | Required | Secret | Description |
|---|---|---|---|
GATEKEEPER_ROLE | Yes | No | Policy role this server presents to Gatekeeper for every call. Required. |
GATEKEEPER_URL | No | No | Base URL of the Gatekeeper server. Default http://127.0.0.1:3847. |
GATEKEEPER_AGENT_NAME | No | No | Agent name recorded in Gatekeeper audit logs. Default mcp-client. |
GATEKEEPER_RUN_ID | No | No | Optional run-correlation id so calls count toward one per-run budget. |
Checks
| Check | Result | Detail |
|---|---|---|
| Source repository linked | Pass | https://github.com/Runestone-Labs/gatekeeper |
| Version pinned | Pass | Every package has an explicit version |
| Secrets requested | Info | Asks for no secrets |
| Known package registry | Pass | All packages come from npm, PyPI, OCI, NuGet or MCPB |
| Namespace ownership | Info | Name verified via GitHub account Runestone-Labs |
| Registry text aimed at the AI | Pass | Description and settings contain no hidden characters or instructions to the AI |
| Install scripts | Pass | @runestone-labs/gatekeeper-mcp@0.1.2 runs nothing at install |
| Code red flags | Pass | Read 13 files in @runestone-labs/gatekeeper-mcp@0.1.2: no obfuscation, encoded execution, credential reads or data-collection endpoints found |
| Text aimed at the AI | Pass | No hidden characters or instructions to the AI in 13 files, including comments and the README |
Popularity & health: 55 / 100
Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.
0 forks, 3 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.
What people say
No Hacker News threads link to its source code.
Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.
Facts
| Registry name | io.github.Runestone-Labs/gatekeeper |
|---|---|
| Publisher | GitHub account Runestone-Labs |
| How the name is verified | Name verified via GitHub account Runestone-Labs. The registry ties the name prefix to that account or domain; it does not check the code. |
| Type | Local: runs on your machine from a package |
| Packages | npm @runestone-labs/gatekeeper-mcp 0.1.2 (stdio) |
| Version | 0.1.2 |
| Published | |
| Last updated | |
| Source repository | https://github.com/Runestone-Labs/gatekeeper |
| Website | None linked |
| Category | Agent safety & governance (assigned by keyword rule, not by hand) |
Related servers in Agent safety & governance
- sidclaw-governance-mcp7/7Governance proxy for MCP servers — policy evaluation, human…
- delego7/7Intent-bound action authorization for AI agents: policy, human…
- signet-eval2/2Deterministic policy enforcement and MCP management for AI agent…
- AISentinel by BizDNAi5/6Pre-tool policy enforcement + JSONL audit for AI agents. Apache 2.0.
- TAP3/3Credential isolation for AI agents: placeholder secrets, policy…
- mcpcut6/7Journals every MCP tool call with secrets redacted; with a policy,…