unity_scriptableobject_create

THE RISK

Medium Risk

Why unity_scriptableobject_create needs a policy

This tool creates new assets (ScriptableObject instances) in a Unity project, which is a reversible modification of project data. It does not delete, execute arbitrary code, move money, or perform destructive operations.

From the tool's definition Tool description states it 'Create[s] a new ScriptableObject asset from a C# type', which creates a new asset file in the Unity project. The verb 'Create' and the action of generating a new asset indicates a Write operation that modifies the project state.

Documented attack patterns abuse exactly the kind of access unity_scriptableobject_create gives an agent:

POLICY

How to control unity_scriptableobject_create

PolicyLayer is an MCP gateway — it sits between your AI agents and Unity MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for unity_scriptableobject_create:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "unity_scriptableobject_create": {
      "limits": [
        {
          "counter": "unity_scriptableobject_create_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

unity_scriptableobject_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.

Create a free account and register Unity MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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All 324 Unity MCP Server tools →

Write tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about unity_scriptableobject_create

What does the unity_scriptableobject_create tool do? +

Create a new ScriptableObject asset from a C# type. The type must already exist as a compiled script. 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_scriptableobject_create? +

Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_scriptableobject_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_scriptableobject_create? +

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

Can I rate-limit unity_scriptableobject_create? +

Yes. Add a rate_limit block to the unity_scriptableobject_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_scriptableobject_create completely? +

Set action: deny in the PolicyLayer policy for unity_scriptableobject_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_scriptableobject_create? +

unity_scriptableobject_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.

Enforce policy on every Unity MCP Server tool call.

Start from Unity MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →