setup_lightmapper · Godot MCP Unified MCP: Risk & Policy

WHAT IT DOES

What setup_lightmapper does on Godot MCP Unified

AI agents invoke setup_lightmapper to trigger actions in Godot MCP Unified. 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 setup_lightmapper needs a policy

The tool configures a LightmapGI node (Write) but also optionally triggers lightmap baking, which executes a rendering/computation process that generates and writes baked lighting data to assets. The most severe applicable category is Execute due to the triggered baking operation.

From the tool's definition 'optionally trigger lightmap baking' — baking is a computational process that runs an operation (lightmap generation) and modifies scene assets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

setup_lightmapper Rate-limited

setup_lightmapper 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": {
    "setup_lightmapper": {
      "limits": [
        {
          "counter": "setup_lightmapper_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 Unified, so you can run agents against it safely.

FAQ

Questions about setup_lightmapper

What does the setup_lightmapper tool do? +

Configure LightmapGI node in a scene for baked lighting, optionally trigger lightmap baking. It is categorised as a Execute tool in the Godot MCP Unified MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on setup_lightmapper? +

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

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

Can I rate-limit setup_lightmapper? +

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

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

setup_lightmapper 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.