godot_write_script · Godot MCP Server MCP: Risk & Policy

WHAT IT DOES

What godot_write_script does on Godot MCP Server

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

WHY IT NEEDS A POLICY

Why godot_write_script needs a policy

The tool creates or overwrites GDScript files, which are code files in Godot projects. While reversible (files can be edited or deleted), this is a Write operation rather than Execute because it only modifies the file itself; actual code execution depends on Godot running that script separately.

From the tool's definition Tool description explicitly states it "Writes (creates or overwrites) a GDScript file". This is a write operation that modifies or creates files in the Godot project.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

godot_write_script Rate-limited

godot_write_script 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": {
    "godot_write_script": {
      "limits": [
        {
          "counter": "godot_write_script_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 Server, so you can run agents against it safely.

FAQ

Questions about godot_write_script

What does the godot_write_script tool do? +

Writes (creates or overwrites) a GDScript file at the given path. Args: - file_path (string): res:// path e.g. It is categorised as a Write tool in the Godot MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on godot_write_script? +

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

What risk level is godot_write_script? +

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

Can I rate-limit godot_write_script? +

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

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

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