create_server · Coolify MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_server does on Coolify MCP Server

AI agents use create_server to create or update resources in Coolify MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Coolify MCP Server environment.

WHY IT NEEDS A POLICY

Why create_server needs a policy

This tool creates a new server within the Coolify infrastructure. While the operation is reversible (the server can be deleted), the action has significant blast radius since misconfigured or unintended servers could disrupt infrastructure, consume resources, or introduce security vulnerabilities. It exceeds Write severity baseline (medium) due to the infrastructure-level impact, warranting 'high' severity.

From the tool's definition Tool name: 'create_server'; description: 'Create a new server'. The verb 'create' indicates a reversible data modification operation that adds a new entity to the infrastructure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_server Rate-limited

create_server stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_server": {
      "limits": [
        {
          "counter": "create_server_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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 create_server

What does the create_server tool do? +

Create a new server. It is categorised as a Write tool in the Coolify MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_server? +

Register the Coolify MCP Server MCP server in PolicyLayer and add a rule for create_server: 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 create_server? +

create_server is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_server? +

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

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

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