suspend_system · Sysprobe MCP: Risk & Policy

WHAT IT DOES

What suspend_system does on Sysprobe

AI agents invoke suspend_system to trigger actions in Sysprobe. 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 suspend_system needs a policy

Suspending the system is a system-wide action that affects all running processes and user sessions. It is not destructive (data is not deleted) but it executes a privileged OS-level operation with broad blast radius — an AI agent misusing this could disrupt ongoing work, interrupt services, and cause denial of availability.

From the tool's definition 'Suspend (sleep) the system' — triggers an external system-level operation that puts the entire machine into a sleep state

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

suspend_system Rate-limited

suspend_system 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": {
    "suspend_system": {
      "limits": [
        {
          "counter": "suspend_system_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 Sysprobe, so you can run agents against it safely.

FAQ

Questions about suspend_system

What does the suspend_system tool do? +

[ACTION] Suspend (sleep) the system. It is categorised as a Execute tool in the Sysprobe MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on suspend_system? +

Register the Sysprobe MCP server in PolicyLayer and add a rule for suspend_system: 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 Sysprobe. Nothing to install.

What risk level is suspend_system? +

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

Can I rate-limit suspend_system? +

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

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

suspend_system is provided by the Sysprobe MCP server (raindancer118/sysprobe-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.