gateway_join_cluster

Add/update gateway cluster membership (POST to create, PATCH if duplicate).

SERVERHpe Networking SOURCEsecure-ssid/hpe-networking-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/hpe-networking-mcp/gateway-join-cluster.md

WHAT IT DOES

What gateway_join_cluster does on Hpe Networking

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

RISK

Why gateway_join_cluster is rated Medium

This tool modifies network infrastructure by adding or updating gateway cluster membership. POST and PATCH operations create or update cluster configurations, which are reversible changes but have significant blast radius in production network environments. Clustering decisions affect failover, load balancing, and availability—misuse could disrupt network operations.

From the tool's definition POST to create, PATCH if duplicate — indicates irreversible state modifications to gateway cluster membership configuration

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs gateway_join_cluster safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Hpe Networking, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gateway_join_cluster, this is the rule to start with:

gateway_join_cluster Rate-limited

gateway_join_cluster 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": {
    "gateway_join_cluster": {
      "limits": [
        {
          "counter": "gateway_join_cluster_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Hpe Networking, apply this rule, and every gateway_join_cluster call is checked against it from then on.

FAQ

Questions about gateway_join_cluster

What does the gateway_join_cluster tool do? +

Add/update gateway cluster membership (POST to create, PATCH if duplicate). It is categorised as a Write tool in the Hpe Networking MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on gateway_join_cluster? +

Register the Hpe Networking MCP server in PolicyLayer and add a rule for gateway_join_cluster: 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 Networking. Nothing to install.

What risk level is gateway_join_cluster? +

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

Can I rate-limit gateway_join_cluster? +

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

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

gateway_join_cluster is provided by the Hpe Networking MCP server (secure-ssid/hpe-networking-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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