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MetaGO Agent Harness MCP Server

local only

MetaGO Agent Harness runs on your own machine — the client starts it, so there is no endpoint to ping. 507 installs a week from npm. Last commit 27 Oct 2026.

Decision lock, anti-hallucination, meta-evolution and provenance for any MCP agent. 55 tools.

Installs per day peak 346 · avg 23 · +1590% w/w
a month agotoday
507
Installs / week
npm · @metago-ai/mcp-server
6
Stars
5 open issues
27 Oct 2026
Last commit
5 releases in 90 days
MIT
License
JavaScript

What the code does

We read the source, 6 d ago · rules 995398eba69f

Evidence

Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.

Deletes files or strips permissions packages/engine/RUNTIME/src/evolution-engine.ts:514
      'eval(', 'exec(', 'system(', 'rm -rf', 'del /f', 'format ', 'shutdown',
Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

    const out = execSync(`${cmd} --help`, { encoding: 'utf8', timeout: 8000, stdio: 'pipe' });
      const filePath = path.join(this.enginePath, file.path);
Runs an external command full-regression.py:95
        r = subprocess.run([exe, str(script)], capture_output=True, text=True,
        var fn = (new Function('return (' + s + ')'))();
Page executes code built at runtime packages/dashboard/public/index.html:359
      tbody.innerHTML = tools.map(t => {

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

We found things in this code

Code changes quietly between releases, and nobody reads the diff of a dependency. We do, on every release — watch MetaGO Agent Harness and you get told the day something new turns up.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add metago -- npx -y @metago-ai/mcp-server
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "metago": {
      "command": "npx",
      "args": [
        "-y",
        "@metago-ai/mcp-server"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.metago]
command = "npx"
args = ["-y", "@metago-ai/mcp-server"]
.cursor/mcp.json
{
  "mcpServers": {
    "metago": {
      "command": "npx",
      "args": [
        "-y",
        "@metago-ai/mcp-server"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "metago": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@metago-ai/mcp-server"
      ]
    }
  }
}

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MetaGO Agent Harness — questions

Answers built from our own checks of this server.

Why is there no uptime for MetaGO Agent Harness?
MetaGO Agent Harness runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @metago-ai/mcp-server was installed 507 times last week.
How do I connect MetaGO Agent Harness?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @metago-ai/mcp-server straight from npm; nothing to host, nothing to sign up for.
How many people use MetaGO Agent Harness?
The npm package @metago-ai/mcp-server was installed 507 times in the last week. Week over week that is +1590%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is MetaGO Agent Harness open source?
Yes — it is published under the MIT licence, written in JavaScript, 6 stars on GitHub and 5 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.