landscape_set_material

A write tool on the Uefn MCP server.

SERVERUefn SOURCEquangdang46/uefn-verse-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/quangdang46-uefn-verse-mcp/landscape-set-material.md

WHAT IT DOES

What landscape_set_material does on Uefn

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

RISK

Why landscape_set_material is rated Medium

The tool performs a write operation—setting/modifying a material on a landscape object in a live UEFN editor. This is reversible (materials can be changed again), so it is Write rather than Destructive.

From the tool's definition Tool name 'landscape_set_material' indicates modification of a landscape material property in Unreal Editor for Fortnite. The verb 'set' indicates a write operation that modifies scene data. Description is empty, limiting precision.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs landscape_set_material safely

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

landscape_set_material Rate-limited

landscape_set_material 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": {
    "landscape_set_material": {
      "limits": [
        {
          "counter": "landscape_set_material_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 Uefn, apply this rule, and every landscape_set_material call is checked against it from then on.

FAQ

Questions about landscape_set_material

What does the landscape_set_material tool do? +

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

How do I enforce a policy on landscape_set_material? +

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

What risk level is landscape_set_material? +

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

Can I rate-limit landscape_set_material? +

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

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

landscape_set_material is provided by the Uefn MCP server (quangdang46/uefn-verse-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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