ultimate_power_off

THE RISK

Critical Risk

Why ultimate_power_off needs a policy

Powering off hardware is an irreversible action at the moment it occurs — it immediately terminates all running processes, unsaved data, and active operations on the device. It cannot be undone remotely once executed. This is more severe than a Write and qualifies as Destructive due to its unrecoverable impact on device state and any in-progress work.

From the tool's definition Power off the Ultimate device (hardware power off)

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

POLICY

How to control ultimate_power_off

PolicyLayer is an MCP gateway — it sits between your AI agents and Commodore 64 Ultimate MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for ultimate_power_off:

policy.json

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

ultimate_power_off 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 Commodore 64 Ultimate 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

Related tools and policies

More Commodore 64 Ultimate MCP Server tools

Destructive ultimate_reset_config Reset configuration to factory defaults Execute ultimate_reset_machine Reset the C64 machine (soft reset) Execute ultimate_soft_reset Perform a soft reset (load empty program) Execute ultimate_run_cartridge Load and run a cartridge file Execute ultimate_run_prg_binary Upload and run a PRG file. Accepts file path, base64-encoded binary data, or URL to downlo Execute ultimate_run_program Load and run a program on the C64 Execute ultimate_start_stream Start a data stream (U64 only: video, audio, debug) Execute ultimate_stop_stream Stop a data stream (U64 only)

All 39 Commodore 64 Ultimate MCP Server tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in Commodore 64 Ultimate 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.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about ultimate_power_off

What does the ultimate_power_off tool do? +

Power off the Ultimate device (hardware power off). It is categorised as a Destructive tool in the Commodore 64 Ultimate 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 ultimate_power_off? +

Register the Commodore 64 Ultimate MCP Server MCP server in PolicyLayer and add a rule for ultimate_power_off: 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 Commodore 64 Ultimate MCP Server. Nothing to install.

What risk level is ultimate_power_off? +

ultimate_power_off 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 ultimate_power_off? +

Yes. Add a rate_limit block to the ultimate_power_off 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 ultimate_power_off completely? +

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

ultimate_power_off is provided by the Commodore 64 Ultimate MCP Server MCP server (martijn-devrev/ultimate64mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Commodore 64 Ultimate MCP Server tool call.

Start from Commodore 64 Ultimate MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →