export_vm · Mcp Utm MCP: Risk & Policy

WHAT IT DOES

What export_vm does on Mcp Utm

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

WHY IT NEEDS A POLICY

Why export_vm needs a policy

This operation creates or exports data (the .utm file) which is reversible—the exported file can be deleted and the original VM remains unaffected. It does not execute code, delete data, or move money. It fits Write category as it generates a new data artifact.

From the tool's definition Tool exports a VM to a .utm file, creating a new reversible data artifact without deletion or destructive operations. The description indicates file creation/export ('Export a VM to a .utm file').

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

export_vm Rate-limited

export_vm 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": {
    "export_vm": {
      "limits": [
        {
          "counter": "export_vm_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 Mcp Utm, so you can run agents against it safely.

FAQ

Questions about export_vm

What does the export_vm tool do? +

Export a VM to a .utm file. It is categorised as a Write tool in the Mcp Utm MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on export_vm? +

Register the Mcp Utm MCP server in PolicyLayer and add a rule for export_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 Mcp Utm. Nothing to install.

What risk level is export_vm? +

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

Can I rate-limit export_vm? +

Yes. Add a rate_limit block to the export_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.

How do I block export_vm completely? +

Set action: deny in the PolicyLayer policy for export_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.

What MCP server provides export_vm? +

export_vm is provided by the Mcp Utm MCP server (neverprepared/mcp-utm). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.