pve_generate_terraform · Proxmox MCP Server MCP

WHAT IT DOES

What pve_generate_terraform does on Proxmox MCP Server

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

WHY IT NEEDS A POLICY

Why pve_generate_terraform needs a policy

This tool creates Terraform configuration files, which are data artifacts that represent infrastructure-as-code. While file generation itself is reversible (files can be deleted or overwritten), the tool's primary function is to write/create new data. It does not execute infrastructure changes, delete resources irreversibly, or involve financial transactions.

From the tool's definition Tool name includes 'generate' and description states 'Generate Terraform configuration for a VM', indicating creation of configuration files/data artifacts.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pve_generate_terraform Rate-limited

pve_generate_terraform 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": {
    "pve_generate_terraform": {
      "limits": [
        {
          "counter": "pve_generate_terraform_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 Proxmox MCP Server, so you can run agents against it safely.

FAQ

Questions about pve_generate_terraform

What does the pve_generate_terraform tool do? +

Generate Terraform configuration for a VM. It is categorised as a Write tool in the Proxmox 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 pve_generate_terraform? +

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

What risk level is pve_generate_terraform? +

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

Can I rate-limit pve_generate_terraform? +

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

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

pve_generate_terraform is provided by the Proxmox MCP Server MCP server (mjrestivo16/mcp-proxmox). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.