createObject · Maige 3d MCP: Risk & Policy

WHAT IT DOES

What createObject does on Maige 3d

AI agents use createObject to create or update resources in Maige 3d — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Maige 3d environment.

WHY IT NEEDS A POLICY

Why createObject needs a policy

Creating 3D objects in a scene is a write operation: it modifies the scene state reversibly and non-destructively. The severity is medium because while scene modifications could disrupt intended visualizations or waste computational resources if spawned excessively, they are not irreversible (deleteObject exists as a counterpart) and do not result in data loss, financial impact, or code execution on the host system.

From the tool's definition The tool 'createObject' explicitly states it will 'Add a 3D object to the live scene', which is a reversible modification operation. The sibling tools include 'deleteObject', confirming that additions can be undone.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

createObject Rate-limited

createObject 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": {
    "createObject": {
      "limits": [
        {
          "counter": "createobject_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 Maige 3d, so you can run agents against it safely.

FAQ

Questions about createObject

What does the createObject tool do? +

Add a 3D object to the live scene. Returns the assigned id. Always call getSceneState first to understand what already exists. It is categorised as a Write tool in the Maige 3d MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on createObject? +

Register the Maige 3d MCP server in PolicyLayer and add a rule for createObject: 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 Maige 3d. Nothing to install.

What risk level is createObject? +

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

Can I rate-limit createObject? +

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

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

createObject is provided by the Maige 3d MCP server (m-ai-gexr/mcp-webgpu). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.