create_vm_snapshot · Proxmox MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_vm_snapshot does on Proxmox MCP Server

AI agents use create_vm_snapshot 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 create_vm_snapshot needs a policy

Creating a VM snapshot is a reversible Write operation that captures VM state. It creates new data but does not execute arbitrary code, delete resources, or commit financial transactions. The medium severity reflects that snapshots consume storage resources and could impact system capacity, but the operation is non-destructive and can be undone by deleting the snapshot (which would be a separate Destructive action).

From the tool's definition Tool name 'create_vm_snapshot' and description 'Create a snapshot of a VM' explicitly indicate creation of new data/state without deletion or irreversible modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_vm_snapshot Rate-limited

create_vm_snapshot 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_vm_snapshot": {
      "limits": [
        {
          "counter": "create_vm_snapshot_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 create_vm_snapshot

What does the create_vm_snapshot tool do? +

Create a snapshot of 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 create_vm_snapshot? +

Register the Proxmox MCP Server MCP server in PolicyLayer and add a rule for create_vm_snapshot: 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 create_vm_snapshot? +

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

Can I rate-limit create_vm_snapshot? +

Yes. Add a rate_limit block to the create_vm_snapshot 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_vm_snapshot completely? +

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

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