turn_off_display · xigua- MCP: Risk & Policy

WHAT IT DOES

What turn_off_display does on xigua-MCP

AI agents invoke turn_off_display to trigger actions in xigua-MCP. 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 turn_off_display needs a policy

This tool triggers an external hardware operation (powering off the display) that affects the user's system state. It is reversible (display can be turned back on) but it executes a system-level action rather than simply reading or writing data. Misuse could disrupt user sessions or hide activity from the user.

From the tool's definition '仅关闭显示器（电脑保持运行，仅Windows）' — turns off the display monitor while the computer keeps running

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

turn_off_display Rate-limited

turn_off_display 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": {
    "turn_off_display": {
      "limits": [
        {
          "counter": "turn_off_display_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 xigua-MCP, so you can run agents against it safely.

FAQ

Questions about turn_off_display

What does the turn_off_display tool do? +

仅关闭显示器（电脑保持运行，仅Windows）. It is categorised as a Execute tool in the xigua-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on turn_off_display? +

Register the xigua- MCP server in PolicyLayer and add a rule for turn_off_display: 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 xigua-MCP. Nothing to install.

What risk level is turn_off_display? +

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

Can I rate-limit turn_off_display? +

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

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

turn_off_display is provided by the xigua- MCP server (xiguaxiaome/xigua-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.