connect_signal · Godot MCP Unified MCP: Risk & Policy

WHAT IT DOES

What connect_signal does on Godot MCP Unified

AI agents use connect_signal 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 connect_signal needs a policy

Connecting a signal between nodes creates a new relationship/binding in the scene graph. This is a reversible write operation (signals can be disconnected), not destructive. Misuse could cause unintended event-driven behavior in the game scene.

From the tool's definition Connect a signal between two nodes in a scene

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

connect_signal Rate-limited

connect_signal 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": {
    "connect_signal": {
      "limits": [
        {
          "counter": "connect_signal_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 connect_signal

What does the connect_signal tool do? +

Connect a signal between two nodes in a scene. 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 connect_signal? +

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

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

Can I rate-limit connect_signal? +

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

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

connect_signal 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.