create_vn · Apstra MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_vn does on Apstra MCP Server

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

WHY IT NEEDS A POLICY

Why create_vn needs a policy

This tool creates new virtual network configurations in a production datacenter network management system. While reversible (Write rather than Destructive), the creation of network resources can have significant operational impact on datacenter connectivity and traffic flows.

From the tool's definition Tool name 'create_vn' indicates creation of virtual network resources within Juniper Apstra datacenter infrastructure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_vn Rate-limited

create_vn 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_vn": {
      "limits": [
        {
          "counter": "create_vn_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 Apstra MCP Server, so you can run agents against it safely.

FAQ

Questions about create_vn

What does the create_vn tool do? +

create_vn. It is categorised as a Write tool in the Apstra 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_vn? +

Register the Apstra MCP Server MCP server in PolicyLayer and add a rule for create_vn: 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 Apstra MCP Server. Nothing to install.

What risk level is create_vn? +

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

Can I rate-limit create_vn? +

Yes. Add a rate_limit block to the create_vn 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_vn completely? +

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

create_vn is provided by the Apstra MCP Server MCP server (vignitin/apstra-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

create_vn is one line of Apstra MCP Server's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →