Low Risk

list_windows_os

List Windows operating systems.

How to control list_windows_os ↓

What list_windows_os does on Vultr MCP

AI agents call list_windows_os to retrieve information from Vultr MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why list_windows_os needs a policy

This tool retrieves or queries available Windows operating systems without modifying, deleting, or executing any operations. It is informational only, making it a straightforward Read category tool with low severity risk. The confidence is high because the intent is unambiguous.

From the tool's definition Tool name 'list_windows_os' and description 'List Windows operating systems' indicate a query/retrieval operation with no side effects. The verb 'list' is a clear indicator of Read category operations.

Documented attack patterns abuse exactly the kind of access list_windows_os gives an agent:

How to control list_windows_os

PolicyLayer is an MCP gateway — it sits between your AI agents and Vultr MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for list_windows_os:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_windows_os": {}
  }
}

list_windows_os is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Vultr MCP — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about list_windows_os

What does the list_windows_os tool do? +

List Windows operating systems. It is categorised as a Read tool in the Vultr MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_windows_os? +

Register the Vultr MCP server in PolicyLayer and add a rule for list_windows_os: 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 Vultr MCP. Nothing to install.

What risk level is list_windows_os? +

list_windows_os is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_windows_os? +

Yes. Add a rate_limit block to the list_windows_os 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 list_windows_os completely? +

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

list_windows_os is provided by the Vultr MCP server (rsp2k/mcp-vultr). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Vultr MCP tool call.

Start from Vultr MCP, 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.

284 Vultr MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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