unity_prefab_revert_overrides

Revert all overrides on a prefab instance, restoring it to match the source prefab.

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

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/anklebreaker-studio-unity-mcp-server/unity-prefab-revert-overrides.md

WHAT IT DOES

What unity_prefab_revert_overrides does on Unity MCP Server

AI agents use unity_prefab_revert_overrides to create or update resources in Unity MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Unity MCP Server environment.

RISK

Why unity_prefab_revert_overrides is rated Medium

This tool modifies project state by reverting prefab instance overrides, which is a write operation. It is reversible (overrides can be re-applied), so it does not qualify as Destructive. The severity is medium because while the change affects game assets, it is not irreversible and can be undone via subsequent overrides or version control.

From the tool's definition Tool description states it 'Revert[s] all overrides on a prefab instance' - a modification operation that changes data in the Unity project. The tool explicitly performs a write/modification action by restoring prefab instances to their source state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_prefab_revert_overrides 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_prefab_revert_overrides, this is the rule to start with:

unity_prefab_revert_overrides Rate-limited

unity_prefab_revert_overrides 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.

View as policy code

policy.json

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

LIMIT 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_prefab_revert_overrides call is checked against it from then on.

FAQ

Questions about unity_prefab_revert_overrides

What does the unity_prefab_revert_overrides tool do? +

Revert all overrides on a prefab instance, restoring it to match the source prefab. 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_prefab_revert_overrides? +

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

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

Can I rate-limit unity_prefab_revert_overrides? +

Yes. Add a rate_limit block to the unity_prefab_revert_overrides 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_prefab_revert_overrides completely? +

Set action: deny in the PolicyLayer policy for unity_prefab_revert_overrides. 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_prefab_revert_overrides? +

unity_prefab_revert_overrides 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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