unity_asmdef_create

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.md

WHAT IT DOES

What unity_asmdef_create does on Unity MCP Server

AI agents use unity_asmdef_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_asmdef_create is rated Medium

The tool creates a new .asmdef file, which is a reversible modification to the project structure. Assembly definition files are standard Unity project configuration files used for code organization and compilation optimization. This is a write operation (not destructive) because the file can be deleted or modified later.

From the tool's definition Tool description states 'Create a new Assembly Definition (.asmdef) file', which is a create operation that adds a new configuration file to the project.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_asmdef_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_asmdef_create, this is the rule to start with:

unity_asmdef_create Rate-limited

unity_asmdef_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_asmdef_create": {
      "limits": [
        {
          "counter": "unity_asmdef_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_asmdef_create call is checked against it from then on.

FAQ

Questions about unity_asmdef_create

What does the unity_asmdef_create tool do? +

Create a new Assembly Definition (.asmdef) file for code containerisation and compilation optimisation. Assembly definitions split your project code into separate assemblies, reducing recompilation time and enforcing clean dependency boundaries. 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? +

Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_asmdef_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_asmdef_create? +

unity_asmdef_create 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? +

Yes. Add a rate_limit block to the unity_asmdef_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_asmdef_create completely? +

Set action: deny in the PolicyLayer policy for unity_asmdef_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_asmdef_create? +

unity_asmdef_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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