create_grid_map · Godot MCP: Risk & Policy

WHAT IT DOES

What create_grid_map does on Godot

AI agents use create_grid_map to create or update resources in Godot — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Godot environment.

PARAMETERS

Parameter	Type	Required
`name`	object	—
`parent`	object	—
`scene_path`	string	Yes

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why create_grid_map needs a policy

Creating a GridMap node is a reversible write operation that adds a new element to the Godot scene tree. It modifies the project but does not execute arbitrary code, delete data, or cause financial impact. The effect is bounded to creating a specific node type for level design.

From the tool's definition Tool name 'create_grid_map' and description 'Create a GridMap node for 3D tile-based level design' indicate creation of a scene/level design element within Godot. This modifies the game project state by adding a new node.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_grid_map Rate-limited

create_grid_map stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_grid_map": {
      "limits": [
        {
          "counter": "create_grid_map_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Godot, so you can run agents against it safely.

FAQ

Questions about create_grid_map

What does the create_grid_map tool do? +

Create a GridMap node for 3D tile-based level design. It is categorised as a Write tool in the Godot MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does create_grid_map accept? +

create_grid_map accepts 3 parameters: name, parent, scene_path. Required: scene_path. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_grid_map? +

Register the Godot MCP server in PolicyLayer and add a rule for create_grid_map: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Godot. Nothing to install.

What risk level is create_grid_map? +

create_grid_map is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_grid_map? +

Yes. Add a rate_limit block to the create_grid_map rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block create_grid_map completely? +

Set action: deny in the PolicyLayer policy for create_grid_map. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides create_grid_map? +

create_grid_map is provided by the Godot MCP server (@yanhuifair/godot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.