AI agents invoke deploy_virtual_machine to trigger actions in CloudStack 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.
Deploying a virtual machine is an Execute action because it triggers provisioning of compute resources and external infrastructure operations whose effects are determined by the arguments provided (VM size, image, network config, etc.). While not immediately destructive or financial, unauthorized VM deployment can rapidly consume cloud resources, incur costs, and compromise infrastructure.
From the tool's definition Tool name is 'deploy_virtual_machine' with description 'Deploy a new virtual machine'. The verb 'deploy' indicates execution of a provisioning operation that instantiates cloud infrastructure resources.
Documented attack patterns abuse exactly the kind of access deploy_virtual_machine gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and CloudStack MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for deploy_virtual_machine:
{
"version": "1",
"default": "deny",
"tools": {
"deploy_virtual_machine": {
"limits": [
{
"counter": "deploy_virtual_machine_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
} deploy_virtual_machine 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.
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Deploy a new virtual machine. It is categorised as a Execute tool in the CloudStack MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the CloudStack MCP Server MCP server in PolicyLayer and add a rule for deploy_virtual_machine: 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 CloudStack MCP Server. Nothing to install.
deploy_virtual_machine 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 deploy_virtual_machine 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 deploy_virtual_machine. 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.
deploy_virtual_machine is provided by the CloudStack MCP Server MCP server (phantosmax/cloudstack-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from CloudStack MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
45 CloudStack MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.