godot_run_tests · Godot MCP Server MCP: Risk & Policy

WHAT IT DOES

What godot_run_tests does on Godot MCP Server

AI agents invoke godot_run_tests to trigger actions in Godot MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why godot_run_tests needs a policy

This tool triggers execution of arbitrary test code within the Godot engine. While test execution is typically lower-risk than arbitrary script execution (tests are usually constrained and predictable), the tool still executes code whose behavior depends on test file contents.

From the tool's definition Tool description states it 'Run[s] GUT (Godot Unit Test) tests' — the verb 'run' indicates execution of code. GUT is a testing framework that executes test scripts within the Godot Engine environment.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

godot_run_tests Rate-limited

godot_run_tests stays usable, but rate-capped — a runaway agent can't fire it dozens of times 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_run_tests": {
      "limits": [
        {
          "counter": "godot_run_tests_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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_run_tests

What does the godot_run_tests tool do? +

Run GUT (Godot Unit Test) tests for a Godot project. Returns test results including pass/fail counts and any failures. It is categorised as a Execute tool in the Godot MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on godot_run_tests? +

Register the Godot MCP Server MCP server in PolicyLayer and add a rule for godot_run_tests: 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_run_tests? +

godot_run_tests is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit godot_run_tests? +

Yes. Add a rate_limit block to the godot_run_tests 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_run_tests completely? +

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

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