create_vpc · CloudStack MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_vpc does on CloudStack MCP Server

AI agents use create_vpc to create or update resources in CloudStack MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your CloudStack MCP Server environment.

WHY IT NEEDS A POLICY

Why create_vpc needs a policy

This tool creates a new VPC, which is a reversible write operation. While significant infrastructure is being provisioned, it is not destructive (can be deleted) or financial in nature. However, the blast radius is high because a misconfigured VPC could impact network security and resource isolation in a production environment. The confidence is high because the intent is unambiguous from the name and description.

From the tool's definition Tool name is 'create_vpc' and description states 'Create a Virtual Private Cloud'. The verb 'create' indicates a write operation that creates new infrastructure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_vpc Rate-limited

create_vpc 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_vpc": {
      "limits": [
        {
          "counter": "create_vpc_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 CloudStack MCP Server, so you can run agents against it safely.

FAQ

Questions about create_vpc

What does the create_vpc tool do? +

Create a Virtual Private Cloud. It is categorised as a Write tool in the CloudStack 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_vpc? +

Register the CloudStack MCP Server MCP server in PolicyLayer and add a rule for create_vpc: 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.

What risk level is create_vpc? +

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

Can I rate-limit create_vpc? +

Yes. Add a rate_limit block to the create_vpc 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_vpc completely? +

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

create_vpc is provided by the CloudStack MCP Server MCP server (mozg31337/cloudstack-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.