unassign_subscription

WHAT IT DOES

What unassign_subscription does on HPE Aruba Networking Central MCP Server

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

WHY IT NEEDS A POLICY

Why unassign_subscription needs a policy

Removing a subscription or license from devices is a reversible modification (it can be re-assigned), so it falls under Write rather than Destructive. However, it has a high severity because unassigning licenses could cause network devices to lose functionality or connectivity, potentially impacting enterprise operations at scale.

From the tool's definition Unassign subscription/license from devices

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unassign_subscription Rate-limited

unassign_subscription 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": {
    "unassign_subscription": {
      "limits": [
        {
          "counter": "unassign_subscription_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 HPE Aruba Networking Central MCP Server, so you can run agents against it safely.

FAQ

Questions about unassign_subscription

What does the unassign_subscription tool do? +

Unassign subscription/license from devices. It is categorised as a Write tool in the HPE Aruba Networking Central 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 unassign_subscription? +

Register the HPE Aruba Networking Central MCP Server MCP server in PolicyLayer and add a rule for unassign_subscription: 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 HPE Aruba Networking Central MCP Server. Nothing to install.

What risk level is unassign_subscription? +

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

Can I rate-limit unassign_subscription? +

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

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

unassign_subscription is provided by the HPE Aruba Networking Central MCP Server MCP server (the-otner/aruba-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.