AI agents use create_scene to create or update resources in Godot Devtool — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Godot Devtool environment.
This tool creates a new scene file in the Godot project, which is a reversible write operation. While it modifies the project structure by adding a new file, the action can be undone by deleting the file. It does not execute arbitrary code, delete existing files, or move financial resources, making it a Write-category risk.
From the tool's definition Tool name is 'create_scene' and description states it will 'Create a new Godot scene file', which is a file creation operation.
Documented attack patterns abuse exactly the kind of access create_scene gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Godot Devtool, and nothing reaches the server without passing your rules. This is the rule we recommend for create_scene:
{
"version": "1",
"default": "deny",
"tools": {
"create_scene": {
"limits": [
{
"counter": "create_scene_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_scene 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.
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Create a new Godot scene file. It is categorised as a Write tool in the Godot Devtool MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Godot Devtool MCP server in PolicyLayer and add a rule for create_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 Devtool. Nothing to install.
create_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 create_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 create_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.
create_scene is provided by the Godot Devtool MCP server (wangdiandao/godot-devtool). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 101 Godot Devtool tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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101 Godot Devtool tools catalogued and risk-classified — across an index of 42,500+ MCP servers.