modify_transform · MCP For Unity MCP: Risk & Policy

WHAT IT DOES

What modify_transform does on MCP For Unity

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

WHY IT NEEDS A POLICY

Why modify_transform needs a policy

This tool updates existing properties (position, rotation, scale) of a Unity GameObject. These are reversible modifications to scene data — no code execution, deletion, or financial action involved. Misuse could displace or distort objects in the scene, but changes can typically be undone via Unity's undo stack.

From the tool's definition Modifies the transform (Position, Rotation, Scale) of a GameObject

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

modify_transform Rate-limited

modify_transform 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": {
    "modify_transform": {
      "limits": [
        {
          "counter": "modify_transform_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 MCP For Unity, so you can run agents against it safely.

FAQ

Questions about modify_transform

What does the modify_transform tool do? +

Modifies the transform (Position, Rotation, Scale) of a GameObject. It is categorised as a Write tool in the MCP For Unity MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on modify_transform? +

Register the MCP For Unity MCP server in PolicyLayer and add a rule for modify_transform: 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 MCP For Unity. Nothing to install.

What risk level is modify_transform? +

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

Can I rate-limit modify_transform? +

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

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

modify_transform is provided by the MCP For Unity MCP server (yunuscan/mcpforunity). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.