save_asset

Save a specific asset to disk.

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/save-asset.md

WHAT IT DOES

What save_asset does on Unreal-MCP

AI agents use save_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 save_asset is rated Medium

This tool modifies persistent state by saving assets to disk. While the save operation itself is reversible (assets can be reverted or overwritten), it commits changes to the asset file system. This is a Write action, not Execute (no arbitrary code execution), not Destructive (saves are reversible), and not Financial.

From the tool's definition save_asset: Save a specific asset to disk. The tool persists modifications to Unreal Engine assets by writing them to storage, which is a reversible Write operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs save_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 save_asset, this is the rule to start with:

save_asset Rate-limited

save_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": {
    "save_asset": {
      "limits": [
        {
          "counter": "save_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 save_asset call is checked against it from then on.

FAQ

Questions about save_asset

What does the save_asset tool do? +

Save a specific asset to disk. 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 save_asset? +

Register the Unreal MCP server in PolicyLayer and add a rule for save_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 save_asset? +

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

Can I rate-limit save_asset? +

Yes. Add a rate_limit block to the save_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 save_asset completely? +

Set action: deny in the PolicyLayer policy for save_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 save_asset? +

save_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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