unity_get_compilation_errors

THE RISK

Low Risk

Why unity_get_compilation_errors needs a policy

This tool retrieves compilation error and warning data from the Unity Editor's diagnostic system. It performs no mutations, side effects, or external operations—it only reads and returns existing error information. This is a pure Read operation with minimal security risk. The severity is low because the information returned is non-sensitive build diagnostics already available within the local development environment.

From the tool's definition Tool name 'unity_get_compilation_errors' and description 'Get C# compilation errors and warnings from the Unity Editor' indicate a retrieval operation that queries and returns diagnostic information without modifying any state.

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

POLICY

How to control unity_get_compilation_errors

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_get_compilation_errors:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "unity_get_compilation_errors": {}
  }
}

unity_get_compilation_errors is read-only, so it stays allowed — but 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.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about unity_get_compilation_errors

What does the unity_get_compilation_errors tool do? +

Get C# compilation errors and warnings from the Unity Editor. It is categorised as a Read tool in the Unity MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on unity_get_compilation_errors? +

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

unity_get_compilation_errors is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit unity_get_compilation_errors? +

Yes. Add a rate_limit block to the unity_get_compilation_errors 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_get_compilation_errors completely? +

Set action: deny in the PolicyLayer policy for unity_get_compilation_errors. 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_get_compilation_errors? +

unity_get_compilation_errors 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 →