powerOff · Lyngdorf MCP Server MCP: Risk & Policy

WHAT IT DOES

What powerOff does on Lyngdorf MCP Server

AI agents invoke powerOff to trigger actions in Lyngdorf MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why powerOff needs a policy

This tool sends a command to an external physical device (audio amplifier) to power it off. It is not purely destructive (no data is deleted), but it executes an action on an external system with real-world consequences. Misuse could interrupt audio playback or affect a live environment, warranting medium severity.

From the tool's definition 'Turn the audio amplifier off' — triggers an external hardware operation on a physical device

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

powerOff Rate-limited

powerOff stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "powerOff": {
      "limits": [
        {
          "counter": "poweroff_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Lyngdorf MCP Server, so you can run agents against it safely.

FAQ

Questions about powerOff

What does the powerOff tool do? +

Turn the audio amplifier off. It is categorised as a Execute tool in the Lyngdorf MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on powerOff? +

Register the Lyngdorf MCP Server MCP server in PolicyLayer and add a rule for powerOff: 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 Lyngdorf MCP Server. Nothing to install.

What risk level is powerOff? +

powerOff is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit powerOff? +

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

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

powerOff is provided by the Lyngdorf MCP Server MCP server (thejens/lyngdorf-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.