unity_terrain_noise

Apply Perlin noise to the entire terrain heightmap. Great for generating natural-looking terrain.

SERVERUnity MCP Server SOURCEanklebreaker-studio/unity-mcp-server

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/anklebreaker-studio-unity-mcp-server/unity-terrain-noise.md

WHAT IT DOES

What unity_terrain_noise does on Unity MCP Server

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

RISK

Why unity_terrain_noise is rated Medium

This tool modifies game world data (terrain heightmap) in a way that changes the scene permanently during that session. While technically reversible (undo can be used in Unity Editor), the tool itself performs a write operation that alters asset state. This is categorized as Write rather than Execute because it performs a specific, bounded operation (apply noise) rather than arbitrary code execution.

From the tool's definition Tool applies noise to 'the entire terrain heightmap', which modifies terrain data. The description indicates this creates or transforms terrain geometry rather than merely reading it.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_terrain_noise safely

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

unity_terrain_noise Rate-limited

unity_terrain_noise 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": {
    "unity_terrain_noise": {
      "limits": [
        {
          "counter": "unity_terrain_noise_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 Unity MCP Server, apply this rule, and every unity_terrain_noise call is checked against it from then on.

FAQ

Questions about unity_terrain_noise

What does the unity_terrain_noise tool do? +

Apply Perlin noise to the entire terrain heightmap. Great for generating natural-looking terrain. It is categorised as a Write tool in the Unity MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on unity_terrain_noise? +

Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_terrain_noise: 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 Unity MCP Server. Nothing to install.

What risk level is unity_terrain_noise? +

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

Can I rate-limit unity_terrain_noise? +

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

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

unity_terrain_noise is provided by the Unity MCP Server MCP server (anklebreaker-studio/unity-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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