unity_material_create

Create a new material asset with a specified shader and properties.

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-material-create.md

WHAT IT DOES

What unity_material_create does on Unity MCP Server

AI agents use unity_material_create 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_material_create is rated Medium

This tool creates a new material asset, which is a reversible write operation within the Unity project. Materials can be deleted or replaced if created incorrectly. While asset creation affects the project state, it does not execute arbitrary code, execute shell commands, delete data irreversibly, or involve financial transactions.

From the tool's definition Tool name 'unity_material_create' and description 'Create a new material asset with a specified shader and properties' indicate creation of new assets in the Unity project.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_material_create 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_material_create, this is the rule to start with:

unity_material_create Rate-limited

unity_material_create 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_material_create": {
      "limits": [
        {
          "counter": "unity_material_create_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_material_create call is checked against it from then on.

FAQ

Questions about unity_material_create

What does the unity_material_create tool do? +

Create a new material asset with a specified shader and properties. 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_material_create? +

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

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

Can I rate-limit unity_material_create? +

Yes. Add a rate_limit block to the unity_material_create 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_material_create completely? +

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

unity_material_create 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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