create_light · Godot MCP Unified MCP: Risk & Policy

WHAT IT DOES

What create_light does on Godot MCP Unified

AI agents use create_light 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_light needs a policy

Creating a node is a Write operation: it modifies scene state by adding a new node object, but the action is reversible (the node can be deleted). This is not Execute (no code/script execution), not Destructive (reversible), not Read (creates rather than retrieves), and not Financial. Severity is medium because misuse could corrupt a scene or cause unintended visual/performance changes, but these can be undone.

From the tool's definition Tool creates a Light2D or Light3D node in the scene—this is a reversible creation action that modifies the scene structure. The description explicitly states it creates a lighting node.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_light Rate-limited

create_light 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_light": {
      "limits": [
        {
          "counter": "create_light_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_light

What does the create_light tool do? +

Create a Light2D or Light3D node for scene lighting. 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_light? +

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

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

Can I rate-limit create_light? +

Yes. Add a rate_limit block to the create_light 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_light completely? +

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

create_light 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.