Cairn MCP Server

What the code does

We read the source, 22 h ago · rules 3dff92dd89df

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.

    for p in root.rglob("*.md"):

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.

этот файл ставится пользователю, но в репозитории его нет

        return __import__(module)

    for p in root.rglob("*.md"):

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

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.

claude mcp add cairn -- uvx cairn-mcp-server

{
  "mcpServers": {
    "cairn": {
      "args": [
        "cairn-mcp-server"
      ],
      "command": "uvx"
    }
  }
}

[mcp_servers.cairn]
command = "uvx"
args = ["cairn-mcp-server"]

{
  "mcpServers": {
    "cairn": {
      "args": [
        "cairn-mcp-server"
      ],
      "command": "uvx"
    }
  }
}

{
  "mcpServers": {
    "cairn": {
      "args": [
        "cairn-mcp-server"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: CAIRN_WORKSPACE (Path to the folder Cairn operates on. If unset, defaults to the current working directory. You can also pass --workspace on the command line instead.). The author declared them in the registry entry; get the values from the project itself.