unity_undo_clear

Clear undo history. Can clear for a specific object or all undo history.

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-undo-clear.md

WHAT IT DOES

What unity_undo_clear does on Unity MCP Server

AI agents call unity_undo_clear 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_undo_clear is rated Critical

This tool irreversibly deletes undo history data, preventing recovery of prior editor states or modifications. While it does not delete project assets directly, it destroys the mechanism that allows undoing changes, making it a destructive operation. The blast radius is high because an AI agent clearing undo history globally could prevent users from recovering from accidental destructive actions.

From the tool's definition Tool name 'unity_undo_clear' explicitly performs clearing of undo history. Description states it 'Clear[s] undo history' which is an irreversible action that removes the user's ability to recover previous states.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_undo_clear 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_undo_clear, this is the rule to start with:

unity_undo_clear Hidden

unity_undo_clear 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_undo_clear"
  ]
}

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_undo_clear call is checked against it from then on.

FAQ

Questions about unity_undo_clear

What does the unity_undo_clear tool do? +

Clear undo history. Can clear for a specific object or all undo history. 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_undo_clear? +

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

unity_undo_clear 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_undo_clear? +

Yes. Add a rate_limit block to the unity_undo_clear 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_undo_clear completely? +

Set action: deny in the PolicyLayer policy for unity_undo_clear. 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_undo_clear? +

unity_undo_clear 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.

KEEP EXPLORING

More on Unity MCP Server, and thousands of servers like it.

This server

All 338 Unity MCP Server tools → Critical-risk tools on this server →

Across the catalogue

clear_renders on Why Did You Render →knowledge_clear on Templonix Lite MCP Server →clear_scan on Frida Game Hacking MCP →clear_spam_box on cPanel MCP Server → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern database agents →Blast radius →Tool call approval →