stop_service · Coolify MCP Server MCP: Risk & Policy

WHAT IT DOES

What stop_service does on Coolify MCP Server

AI agents invoke stop_service to trigger actions in Coolify 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 stop_service needs a policy

This tool executes an operational action (stopping a service) whose consequences depend on which service is targeted. While not irreversible (services can be restarted), it causes immediate disruption to running applications. This is Execute rather than Destructive because the action is reversible and does not destroy data. Severity is high because a misused agent could halt critical services, causing downtime.

From the tool's definition Tool name 'stop_service' combined with description indicating it stops a service (operational control action). Context shows this is part of a PaaS management server controlling deployed applications and services.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

stop_service Rate-limited

stop_service 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": {
    "stop_service": {
      "limits": [
        {
          "counter": "stop_service_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 Coolify MCP Server, so you can run agents against it safely.

FAQ

Questions about stop_service

What does the stop_service tool do? +

Stop a service. When COOLIFY_REQUIRE_CONFIRM=true, requires confirm: true parameter. It is categorised as a Execute tool in the Coolify 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 stop_service? +

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

What risk level is stop_service? +

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

Can I rate-limit stop_service? +

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

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

stop_service is provided by the Coolify MCP Server MCP server (kof70/coolify-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.