unity_undo_history

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

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/anklebreaker-studio-unity-mcp-server/unity-undo-history.md

WHAT IT DOES

What unity_undo_history does on Unity MCP Server

AI agents call unity_undo_history to retrieve information from Unity MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why unity_undo_history is rated Low

This tool retrieves and displays historical information about prior actions and their undo states without modifying data or triggering side effects. It is purely informational, enabling users to inspect state before deciding on further actions. No data is created, modified, deleted, or executed as a result of calling this tool.

From the tool's definition Tool name 'unity_undo_history' and description indicate it 'List[s] recent MCP actions' and queries 'undo state' without performing any modifications.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_undo_history 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_history, this is the rule to start with:

unity_undo_history Allowed

unity_undo_history is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY 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_history call is checked against it from then on.

FAQ

Questions about unity_undo_history

What does the unity_undo_history tool do? +

List recent MCP actions with undo state: per-agent attribution, whether each is still undoable, target, and the current undo group. Use it to decide what unity_undo_last reverts or to pick an agentId. 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_undo_history? +

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

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

Can I rate-limit unity_undo_history? +

Yes. Add a rate_limit block to the unity_undo_history 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_history completely? +

Set action: deny in the PolicyLayer policy for unity_undo_history. 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_history? +

unity_undo_history 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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