unity_terrain_import_heightmap

Import a heightmap from a RAW file or texture asset into the 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-import-heightmap.md

WHAT IT DOES

What unity_terrain_import_heightmap does on Unity MCP Server

AI agents use unity_terrain_import_heightmap 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_import_heightmap is rated Medium

This tool creates or modifies terrain geometry by importing heightmap data, which is a reversible write operation. It does not execute arbitrary code, delete data irreversibly, or move money. While it affects game assets, the operation can be undone through normal version control or re-importing.

From the tool's definition Tool name includes 'import' and description states 'Import a heightmap from a RAW file or texture asset into the terrain' — this modifies terrain data by ingesting external heightmap sources.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_terrain_import_heightmap 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_import_heightmap, this is the rule to start with:

unity_terrain_import_heightmap Rate-limited

unity_terrain_import_heightmap 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_import_heightmap": {
      "limits": [
        {
          "counter": "unity_terrain_import_heightmap_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_import_heightmap call is checked against it from then on.

FAQ

Questions about unity_terrain_import_heightmap

What does the unity_terrain_import_heightmap tool do? +

Import a heightmap from a RAW file or texture asset into the 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_import_heightmap? +

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

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

Can I rate-limit unity_terrain_import_heightmap? +

Yes. Add a rate_limit block to the unity_terrain_import_heightmap 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_import_heightmap completely? +

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

unity_terrain_import_heightmap 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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