proxmox_list_vms

A read tool on the MCP Proxmox MCP server.

SERVERMCP Proxmox Server SOURCEbsahane/mcp-proxmox

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/bsahane-mcp-proxmox/proxmox-list-vms.md

WHAT IT DOES

What proxmox_list_vms does on MCP Proxmox Server

AI agents call proxmox_list_vms to retrieve information from MCP Proxmox Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why proxmox_list_vms is rated Low

The tool lists virtual machines without modifying them. However, severity is elevated to medium rather than low because: (1) the description is empty, reducing confidence that there are no unintended side effects; (2) in a Proxmox environment, VM inventory data can reveal sensitive information about infrastructure and resource allocation that could be leveraged for subsequent attacks; (3) sibling tools on this…

From the tool's definition Tool name 'proxmox_list_vms' indicates a listing/query operation typical of retrieval functions. The server description confirms it supports 'resource discovery' and the tool name follows the 'list' pattern established by 'list_clusters' (a sibling Read tool).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs proxmox_list_vms safely

PolicyLayer is an MCP gateway: it sits between your AI agents and MCP Proxmox Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For proxmox_list_vms, this is the rule to start with:

proxmox_list_vms Allowed

proxmox_list_vms is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "proxmox_list_vms": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect MCP Proxmox Server, apply this rule, and every proxmox_list_vms call is checked against it from then on.

FAQ

Questions about proxmox_list_vms

What does the proxmox_list_vms tool do? +

proxmox_list_vms is a read tool on the MCP Proxmox Server MCP server. It is categorised as a Read tool in the MCP Proxmox Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on proxmox_list_vms? +

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

What risk level is proxmox_list_vms? +

proxmox_list_vms is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit proxmox_list_vms? +

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

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

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

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