Instantiates an existing .tscn file as a child node inside another scene. Args: - scene_to_instantiate (string): res:// path of the scene to instance e.g.
AI agents use godot_instantiate_scene to create or update resources in Godot MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Godot MCP Server environment.
This tool creates a new node instance within a scene by adding a child node, which is a reversible write operation (the instantiated node can be removed). It modifies the scene tree by adding content but does not delete or irreversibly destroy data, nor does it execute arbitrary code or move money.
From the tool's definition Instantiates an existing .tscn file as a child node inside another scene
Attacks that exploit this kind of access
Instantiates an existing .tscn file as a child node inside another scene. Args: - scene_to_instantiate (string): res:// path of the scene to instance e.g. It is categorised as a Write tool in the Godot MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Godot MCP Server MCP server in PolicyLayer and add a rule for godot_instantiate_scene: 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 Server. Nothing to install.
godot_instantiate_scene is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the godot_instantiate_scene 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.
Set action: deny in the PolicyLayer policy for godot_instantiate_scene. 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.
godot_instantiate_scene is provided by the Godot MCP Server MCP server (ricky-yosh/godot-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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