create_control · Godot MCP Unified MCP: Risk & Policy

WHAT IT DOES

What create_control does on Godot MCP Unified

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

WHY IT NEEDS A POLICY

Why create_control needs a policy

This tool creates UI elements within a Godot scene, which is a reversible write operation. It adds new nodes to the scene hierarchy but does not execute arbitrary code, delete data, or cause external side effects. While game development tools are inherently creative, the ability to spawn UI elements could be misused to clutter scenes, create unexpected UI, or consume resources if called in loops.

From the tool's definition Tool creates a UI Control node (Button, Label, LineEdit, etc.), which adds new data structures to the Godot scene graph. The description explicitly states 'Create a UI Control node', indicating node instantiation and scene modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_control Rate-limited

create_control 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_control": {
      "limits": [
        {
          "counter": "create_control_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 MCP Unified, so you can run agents against it safely.

FAQ

Questions about create_control

What does the create_control tool do? +

Create a UI Control node (Button, Label, LineEdit, etc.). It is categorised as a Write tool in the Godot MCP Unified MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_control? +

Register the Godot MCP Unified MCP server in PolicyLayer and add a rule for create_control: 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 MCP Unified. Nothing to install.

What risk level is create_control? +

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

Can I rate-limit create_control? +

Yes. Add a rate_limit block to the create_control 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_control completely? +

Set action: deny in the PolicyLayer policy for create_control. 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_control? +

create_control is provided by the Godot MCP Unified MCP server (pierrealexandreguillemin-a11y/godot-mcp-unified). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.