connect_signal

Connect a signal between nodes.

SERVERGodot SOURCE@yanhuifair/godot-mcp

Medium RISK CLASS

Category Write

Parameters 75 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/yanhuifair-godot-mcp/connect-signal.md

WHAT IT DOES

What connect_signal does on Godot

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

Parameter	Type	Required	Description
`flags`	object	—	Connection flags
`signal`	string	Yes	Signal name (e.g. "body_entered", "pressed")
`to_node`	string	Yes	Target node path
`unbinds`	object	—	Number of unbinds
`from_node`	string	Yes	Source node path
`scene_path`	string	Yes	Path to .tscn file
`method_name`	string	Yes	Method name on target (e.g. "_on_body_entered")

Parameters from the server's own tool schema.

RISK

Why connect_signal is rated Medium

This tool modifies the signal connection graph of a Godot project by establishing new connections between nodes. While reversible (signals can be disconnected), it alters application state and behavior in ways that could have cascading effects on game logic if misused by an AI agent.

From the tool's definition Tool name 'connect_signal' and description 'Connect a signal between nodes' indicates modification of node signal connections in Godot, which changes the runtime behavior and event flow of the game/application.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs connect_signal safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Godot, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For connect_signal, this is the rule to start with:

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.

The button opens the PolicyLayer dashboard: create your workspace, connect Godot, apply this rule, and every connect_signal call is checked against it from then on.

FAQ

Questions about connect_signal

What does the connect_signal tool do? +

Connect a signal between nodes. It is categorised as a Write tool in the Godot MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does connect_signal accept? +

connect_signal accepts 7 parameters: flags, signal, to_node, unbinds, from_node, scene_path, method_name. Required: signal, to_node, from_node, scene_path, method_name. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on connect_signal? +

Register the Godot 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. 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 server (@yanhuifair/godot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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