detach_server_from_network · Hcloud MCP: Risk & Policy

WHAT IT DOES

What detach_server_from_network does on Hcloud

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

WHY IT NEEDS A POLICY

Why detach_server_from_network needs a policy

This tool modifies cloud infrastructure configuration by altering network connectivity. While the action is reversible (re-attachment is possible), it affects running infrastructure and could cause service disruption if misused by an agent. This makes it Write rather than Destructive (which requires irreversible deletion/data loss).

From the tool's definition The tool name 'detach_server_from_network' and description 'Detach a server from a network' indicate a network configuration modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

detach_server_from_network Rate-limited

detach_server_from_network 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": {
    "detach_server_from_network": {
      "limits": [
        {
          "counter": "detach_server_from_network_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 Hcloud, so you can run agents against it safely.

FAQ

Questions about detach_server_from_network

What does the detach_server_from_network tool do? +

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

How do I enforce a policy on detach_server_from_network? +

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

What risk level is detach_server_from_network? +

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

Can I rate-limit detach_server_from_network? +

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

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

detach_server_from_network is provided by the Hcloud MCP server (xodus-co/hcloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.