duplicate_scene · Godot MCP: Risk & Policy

WHAT IT DOES

What duplicate_scene does on Godot

AI agents use duplicate_scene 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	Description
`source`	string	Yes	Source scene path (relative to project root)
`destination`	string	Yes	Destination scene path (relative to project root)

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why duplicate_scene needs a policy

This tool copies an existing scene file to create a new one. It creates new data (the duplicate) without destroying the original, making it a Write operation. Misuse could clutter the project with unwanted duplicates but is reversible by deleting the copy.

From the tool's definition Duplicate a scene file

Risk signalsAccepts file system path (destination)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

duplicate_scene Rate-limited

duplicate_scene 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": {
    "duplicate_scene": {
      "limits": [
        {
          "counter": "duplicate_scene_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 duplicate_scene

What does the duplicate_scene tool do? +

Duplicate a scene file. 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 duplicate_scene accept? +

duplicate_scene accepts 2 parameters: source, destination. Required: source, destination. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on duplicate_scene? +

Register the Godot MCP server in PolicyLayer and add a rule for duplicate_scene: 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 duplicate_scene? +

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

Can I rate-limit duplicate_scene? +

Yes. Add a rate_limit block to the duplicate_scene 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 duplicate_scene completely? +

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

duplicate_scene 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.