unity_playerprefs_delete_all

THE RISK

Critical Risk

This tool irreversibly deletes all PlayerPrefs data without the ability to undo or recover. PlayerPrefs store critical user settings, progress, and configuration data. Deletion is non-recoverable and affects the entire preference store, making it Destructive rather than Write.

From the tool's definition Tool name explicitly contains 'delete_all' and description states 'Delete ALL PlayerPrefs. Use with caution.' The 'ALL' qualifier and caution warning indicate irreversible deletion of all stored player preferences data.

Risk signalsBulk/mass operation — affects multiple targets

Documented attack patterns abuse exactly the kind of access unity_playerprefs_delete_all gives an agent:

HOW TO CONTROL UNITY_PLAYERPREFS_DELETE_ALL

PolicyLayer is an MCP gateway — it sits between your AI agents and Unity MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for unity_playerprefs_delete_all:

policy.json

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

unity_playerprefs_delete_all disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Unity MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

Critical-risk tools in Unity MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the unity_playerprefs_delete_all tool do? +

Delete ALL PlayerPrefs. Use with caution. 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_all? +

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

unity_playerprefs_delete_all 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_all? +

Yes. Add a rate_limit block to the unity_playerprefs_delete_all 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_all completely? +

Set action: deny in the PolicyLayer policy for unity_playerprefs_delete_all. 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_all? +

unity_playerprefs_delete_all 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.

Enforce policy on every Unity MCP Server tool call.

Deterministic rules across all 324 Unity MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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324 Unity MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT UNITY_PLAYERPREFS_DELETE_ALL ON UNITY MCP SERVER DOES

// THE RISK

// HOW TO CONTROL UNITY_PLAYERPREFS_DELETE_ALL

// EXPLORE