generate_lods · Unreal MCP: Risk & Policy

WHAT IT DOES

What generate_lods does on Unreal

AI agents invoke generate_lods to trigger actions in Unreal. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why generate_lods needs a policy

Generating LODs (Level of Detail meshes) triggers a computational process that modifies the static mesh asset by creating additional mesh representations. This is an execution/write operation that processes and modifies an existing asset. It is reversible in principle (LODs can be regenerated or removed), so it falls under Execute rather than Destructive, but it does modify the asset in place.

From the tool's definition Generate LODs for a static mesh

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_lods Rate-limited

generate_lods stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "generate_lods": {
      "limits": [
        {
          "counter": "generate_lods_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 generate_lods

What does the generate_lods tool do? +

Generate LODs for a static mesh. It is categorised as a Execute tool in the Unreal MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on generate_lods? +

Register the Unreal MCP server in PolicyLayer and add a rule for generate_lods: 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 generate_lods? +

generate_lods is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit generate_lods? +

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

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

generate_lods 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.