unity_asmdef_create_ref

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-asmdef-create-ref.md

WHAT IT DOES

What unity_asmdef_create_ref does on Unity MCP Server

AI agents use unity_asmdef_create_ref 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_asmdef_create_ref is rated Medium

This tool creates a new file (.asmref) that modifies the project's assembly configuration. It is reversible (the file can be deleted or modified), so it falls under Write rather than Destructive.

From the tool's definition Tool name contains 'create' and description states 'Create an Assembly Definition Reference (.asmref) file', which involves creating a new file in the project structure.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_asmdef_create_ref 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_asmdef_create_ref, this is the rule to start with:

unity_asmdef_create_ref Rate-limited

unity_asmdef_create_ref 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_asmdef_create_ref": {
      "limits": [
        {
          "counter": "unity_asmdef_create_ref_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_asmdef_create_ref call is checked against it from then on.

FAQ

Questions about unity_asmdef_create_ref

What does the unity_asmdef_create_ref tool do? +

Create an Assembly Definition Reference (.asmref) file. This lets you include scripts from a different folder into an existing assembly, useful for extending packages or splitting code across directories while keeping them in the same compilation unit. 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_asmdef_create_ref? +

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

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

Can I rate-limit unity_asmdef_create_ref? +

Yes. Add a rate_limit block to the unity_asmdef_create_ref 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_asmdef_create_ref completely? +

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

unity_asmdef_create_ref 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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