duplicate_asset · Unreal MCP: Risk & Policy

WHAT IT DOES

What duplicate_asset does on Unreal

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

WHY IT NEEDS A POLICY

Why duplicate_asset needs a policy

This tool creates a new asset (reversible operation) without deleting or permanently destroying data. It modifies the asset database by adding a new entry, which is a Write operation. Severity is medium because uncontrolled duplication could consume storage resources or clutter the asset library, but the action is reversible via deletion.

From the tool's definition Tool name 'duplicate_asset' and description 'Duplicate an asset to a new path' indicate creation of a new asset copy in the file system or asset database.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

duplicate_asset Rate-limited

duplicate_asset 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": {
    "duplicate_asset": {
      "limits": [
        {
          "counter": "duplicate_asset_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 Unreal, so you can run agents against it safely.

FAQ

Questions about duplicate_asset

What does the duplicate_asset tool do? +

Duplicate an asset to a new path. It is categorised as a Write tool in the Unreal MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on duplicate_asset? +

Register the Unreal MCP server in PolicyLayer and add a rule for duplicate_asset: 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 Unreal. Nothing to install.

What risk level is duplicate_asset? +

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

Can I rate-limit duplicate_asset? +

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

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

duplicate_asset is provided by the Unreal MCP server (sam-david/unreal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.