AI agents call pve_list_vms to retrieve information from Proxmox without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and lists virtual machines and containers from the Proxmox cluster. It performs a read-only query operation that returns information about existing resources without modifying, deleting, or executing anything. The action is purely informational with no blast radius if misused by an AI agent—it simply returns cluster state data.
From the tool's definition Tool name 'pve_list_vms' and description 'List QEMU VMs and LXC containers from cluster resources' indicates a query/enumeration operation with no side effects.
Attacks that exploit this kind of access
List QEMU VMs and LXC containers from cluster resources. It is categorised as a Read tool in the Proxmox MCP Server, which means it retrieves data without modifying state.
Register the Proxmox MCP server in PolicyLayer and add a rule for pve_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 Proxmox. Nothing to install.
pve_list_vms is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the pve_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.
Set action: deny in the PolicyLayer policy for pve_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.
pve_list_vms is provided by the Proxmox MCP server (plgonzalezrx8/proxmox-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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