This record as markdown: /tools/gethosthewalrus-proxmox-mcp/resume-vm.md
What resume_vm does on Proxmox MCP Server
AI agents invoke resume_vm to trigger actions in Proxmox MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why resume_vm is rated High
Resuming a VM triggers an external operational state change on infrastructure — it restarts execution of a previously suspended virtual machine. This is an Execute-category action as it causes a system to begin running again, with moderate blast radius if misused (e.g., resuming a VM that was intentionally suspended for security or maintenance reasons).
From the tool's definition Resume a suspended/paused VM
Attacks that exploit this kind of access
The rule that runs resume_vm safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Proxmox MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For resume_vm, this is the rule to start with:
resume_vm stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Proxmox MCP Server, apply this rule, and every resume_vm call is checked against it from then on.
Questions about resume_vm
Resume a suspended/paused VM. It is categorised as a Execute tool in the Proxmox MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Proxmox MCP Server MCP server in PolicyLayer and add a rule for resume_vm: 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.
resume_vm is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the resume_vm 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 resume_vm. 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.
resume_vm is provided by the Proxmox MCP Server MCP server (gethosthewalrus/proxmox-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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