World Model MCP Server

What the code does

We read the source, 4 d ago · rules 995398eba69f

A value the model can set ends up inside a file or shell call. That is not a flaw by itself — for a terminal server it is the job — but it is where things go wrong when it is not.

    const sessionData = JSON.parse(fs.readFileSync(sessionFile, 'utf-8'));

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.

        result = subprocess.run(

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 world-model-mcp -- uvx world-model-mcp

{
  "mcpServers": {
    "world-model-mcp": {
      "command": "uvx",
      "args": [
        "world-model-mcp"
      ]
    }
  }
}

[mcp_servers.world-model-mcp]
command = "uvx"
args = ["world-model-mcp"]

{
  "mcpServers": {
    "world-model-mcp": {
      "command": "uvx",
      "args": [
        "world-model-mcp"
      ]
    }
  }
}

{
  "servers": {
    "world-model-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "world-model-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: WORLD_MODEL_DB_PATH (Database location), ANTHROPIC_API_KEY (Optional - enables LLM-powered entity extraction), WORLD_MODEL_EXTRACTION_MODEL (Model for entity extraction), WORLD_MODEL_REASONING_MODEL (Model for complex reasoning).