create_spring_arm · Godot MCP: Risk & Policy

WHAT IT DOES

What create_spring_arm does on Godot

AI agents use create_spring_arm 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.

PARAMETERS

Parameter	Type	Required
`name`	object	—
`length`	object	—
`parent`	object	—
`scene_path`	string	Yes

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why create_spring_arm needs a policy

The tool creates a new scene node (SpringArm3D) and adds it to the Godot scene, which is a reversible Write operation. While not destructive, an AI agent could spam node creation or create malformed hierarchies. Severity is medium because the effect is bounded to scene structure and can be undone; there is no code execution, data deletion, or financial impact.

From the tool's definition create_spring_arm creates a SpringArm3D node, which modifies the scene graph by adding a new node structure for camera control.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_spring_arm Rate-limited

create_spring_arm 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": {
    "create_spring_arm": {
      "limits": [
        {
          "counter": "create_spring_arm_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, so you can run agents against it safely.

FAQ

Questions about create_spring_arm

What does the create_spring_arm tool do? +

Create a SpringArm3D for smooth camera follow. 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 create_spring_arm accept? +

create_spring_arm accepts 4 parameters: name, length, parent, scene_path. Required: scene_path. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_spring_arm? +

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

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

Can I rate-limit create_spring_arm? +

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

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

create_spring_arm 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.