unity_terrain_paint_layer

Paint a terrain texture layer at a normalized position with brush radius, opacity and falloff.

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-paint-layer.md

WHAT IT DOES

What unity_terrain_paint_layer does on Unity MCP Server

AI agents use unity_terrain_paint_layer 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_paint_layer is rated Medium

This tool modifies scene data (terrain textures) in a reversible manner through the Unity Editor. It does not execute arbitrary code, delete data irreversibly, or involve financial transactions. While it alters the project state, the changes can be undone via standard undo functionality or by repainting, making it a Write operation rather than Execute or Destructive.

From the tool's definition The tool name 'unity_terrain_paint_layer' and description 'Paint a terrain texture layer' indicate modification of terrain data within a Unity scene.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_terrain_paint_layer 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_paint_layer, this is the rule to start with:

unity_terrain_paint_layer Rate-limited

unity_terrain_paint_layer 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_paint_layer": {
      "limits": [
        {
          "counter": "unity_terrain_paint_layer_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_paint_layer call is checked against it from then on.

FAQ

Questions about unity_terrain_paint_layer

What does the unity_terrain_paint_layer tool do? +

Paint a terrain texture layer at a normalized position with brush radius, opacity and falloff. 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_paint_layer? +

Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_terrain_paint_layer: 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_paint_layer? +

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

Can I rate-limit unity_terrain_paint_layer? +

Yes. Add a rate_limit block to the unity_terrain_paint_layer 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_paint_layer completely? +

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

unity_terrain_paint_layer 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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