update_vpn_gateway · CloudStack MCP Server MCP

WHAT IT DOES

What update_vpn_gateway does on CloudStack MCP Server

AI agents use update_vpn_gateway 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 update_vpn_gateway needs a policy

This tool modifies VPN gateway configuration settings in CloudStack infrastructure, which is a Write operation—it changes existing data in a reversible manner. It does not execute arbitrary code (Execute), permanently delete resources (Destructive), involve financial transactions (Financial), or involve querying only (Read).

From the tool's definition Tool name 'update_vpn_gateway' combined with description 'Update VPN gateway configuration' indicates modification of existing VPN gateway settings. The use of 'update' demonstrates reversible data modification rather than deletion or execution of code.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_vpn_gateway Rate-limited

update_vpn_gateway 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": {
    "update_vpn_gateway": {
      "limits": [
        {
          "counter": "update_vpn_gateway_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 update_vpn_gateway

What does the update_vpn_gateway tool do? +

Update VPN gateway configuration. 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 update_vpn_gateway? +

Register the CloudStack MCP Server MCP server in PolicyLayer and add a rule for update_vpn_gateway: 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 update_vpn_gateway? +

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

Can I rate-limit update_vpn_gateway? +

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

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

update_vpn_gateway 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.