canvas_layer_add

A write tool on the Godot MCP server.

SERVERGodot SOURCEchanceflow/godot-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/chanceflow-godot-mcp/canvas-layer-add.md

WHAT IT DOES

What canvas_layer_add does on Godot

AI agents use canvas_layer_add 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.

RISK

Why canvas_layer_add is rated Medium

The '_add' naming convention combined with the context of sibling creation tools on a Godot editor server indicates this tool creates or adds a scene element reversibly. This is a Write operation. Medium severity because modifying scenes in an editor can affect game behavior, but changes are easily undone via undo/redo.

From the tool's definition Tool name 'canvas_layer_add' indicates creation/addition of a canvas layer in Godot. No description provided, but the '_add' suffix and sibling tools that are clearly Write operations (e.g., 'autoload_add', 'audio_add_stream_player') establish the pattern.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs canvas_layer_add 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 canvas_layer_add, this is the rule to start with:

canvas_layer_add Rate-limited

canvas_layer_add 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": {
    "canvas_layer_add": {
      "limits": [
        {
          "counter": "canvas_layer_add_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 canvas_layer_add call is checked against it from then on.

FAQ

Questions about canvas_layer_add

What does the canvas_layer_add tool do? +

canvas_layer_add is a write tool on the Godot MCP server. 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.

How do I enforce a policy on canvas_layer_add? +

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

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

Can I rate-limit canvas_layer_add? +

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

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

canvas_layer_add is provided by the Godot MCP server (chanceflow/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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