unity_playerprefs_delete

Delete a PlayerPrefs key.

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-playerprefs-delete.md

WHAT IT DOES

What unity_playerprefs_delete does on Unity MCP Server

AI agents call unity_playerprefs_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_playerprefs_delete is rated Critical

PlayerPrefs deletion is a destructive action that cannot be undone. Once a key is deleted, the associated player preference data is lost permanently. While the blast radius is somewhat limited to application-level preferences rather than critical system data, the irreversible nature and potential impact on game state/user settings justifies the Destructive category and high severity.

From the tool's definition Tool name contains 'delete' and description states 'Delete a PlayerPrefs key' - this is an irreversible deletion operation that removes stored player preference data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_playerprefs_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_playerprefs_delete, this is the rule to start with:

unity_playerprefs_delete Hidden

unity_playerprefs_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_playerprefs_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_playerprefs_delete call is checked against it from then on.

FAQ

Questions about unity_playerprefs_delete

What does the unity_playerprefs_delete tool do? +

Delete a PlayerPrefs key. 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_playerprefs_delete? +

Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_playerprefs_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_playerprefs_delete? +

unity_playerprefs_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_playerprefs_delete? +

Yes. Add a rate_limit block to the unity_playerprefs_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_playerprefs_delete completely? +

Set action: deny in the PolicyLayer policy for unity_playerprefs_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_playerprefs_delete? +

unity_playerprefs_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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