unity_asset_delete

Delete an asset — to the OS trash by default (NOT undoable via unity_undo_last).

SERVERUnity MCP Server SOURCEanklebreaker-studio/unity-mcp-server

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/anklebreaker-studio-unity-mcp-server/unity-asset-delete.md

WHAT IT DOES

What unity_asset_delete does on Unity MCP Server

AI agents call unity_asset_delete to permanently remove resources in Unity MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why unity_asset_delete is rated Critical

This tool permanently removes assets from a Unity project by sending them to OS trash rather than using Unity's undo system. The explicit note that it cannot be undone via the standard undo mechanism confirms this is a destructive operation that irreversibly deletes data.

From the tool's definition Tool name contains 'delete' and description explicitly states it deletes an asset 'to the OS trash' and is 'NOT undoable via unity_undo_last', making it irreversible.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_asset_delete 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_asset_delete, this is the rule to start with:

unity_asset_delete Hidden

unity_asset_delete is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "unity_asset_delete"
  ]
}

RESTRICT 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_asset_delete call is checked against it from then on.

FAQ

Questions about unity_asset_delete

What does the unity_asset_delete tool do? +

Delete an asset — to the OS trash by default (NOT undoable via unity_undo_last). It is categorised as a Destructive tool in the Unity MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on unity_asset_delete? +

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

unity_asset_delete is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit unity_asset_delete? +

Yes. Add a rate_limit block to the unity_asset_delete 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_asset_delete completely? +

Set action: deny in the PolicyLayer policy for unity_asset_delete. 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_asset_delete? +

unity_asset_delete 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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