import_asset

A write tool on the Unreal- MCP server.

SERVERUnreal-MCP SOURCEaadeshrao123/unreal-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aadeshrao123-unreal-mcp/import-asset.md

WHAT IT DOES

What import_asset does on Unreal-MCP

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

RISK

Why import_asset is rated Medium

Importing an asset into Unreal Engine creates new data structures in the project (materials, models, textures, etc.) and modifies the project state. This is reversible (assets can be deleted or reimported), distinguishing it from Destructive. The operation does not execute arbitrary code, delete data, or move money, so Write is the appropriate category.

From the tool's definition Tool name 'import_asset' combined with context of Unreal Engine editor control—this operation creates or modifies project assets by importing them into the engine, which is a reversible write operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs import_asset safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Unreal-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For import_asset, this is the rule to start with:

import_asset Rate-limited

import_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": {
    "import_asset": {
      "limits": [
        {
          "counter": "import_asset_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Unreal-MCP, apply this rule, and every import_asset call is checked against it from then on.

FAQ

Questions about import_asset

What does the import_asset tool do? +

import_asset is a write tool on the Unreal MCP server. It is categorised as a Write tool in the Unreal-MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on import_asset? +

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

What risk level is import_asset? +

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

Can I rate-limit import_asset? +

Yes. Add a rate_limit block to the import_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 import_asset completely? +

Set action: deny in the PolicyLayer policy for import_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 import_asset? +

import_asset is provided by the Unreal MCP server (aadeshrao123/unreal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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