restart_equipment · Xfinity MCP Server MCP: Risk & Policy

WHAT IT DOES

What restart_equipment does on Xfinity MCP Server

AI agents invoke restart_equipment to trigger actions in Xfinity 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 restart_equipment needs a policy

This tool executes a remote command with tangible consequences—restarting network equipment disrupts connectivity and service. While not destructive (data is not deleted) or financial (no money moves), it fits Execute because it triggers an external operation whose effects are irreversible in the immediate term and depend on execution context.

From the tool's definition Tool performs 'remotely restart' action on ISP equipment (modem/router), which triggers external operations with real-world effects that depend on execution context.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

restart_equipment Rate-limited

restart_equipment 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": {
    "restart_equipment": {
      "limits": [
        {
          "counter": "restart_equipment_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 Xfinity MCP Server, so you can run agents against it safely.

FAQ

Questions about restart_equipment

What does the restart_equipment tool do? +

Remotely restart a Xfinity modem or router. Restarts the primary gateway device by default. It is categorised as a Execute tool in the Xfinity 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 restart_equipment? +

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

What risk level is restart_equipment? +

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

Can I rate-limit restart_equipment? +

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

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

restart_equipment is provided by the Xfinity MCP Server MCP server (markswendsen-code/mcp-xfinity). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.