create_node_pool

Creates a node pool for a specific GKE cluster.

SERVERMcp SOURCEhttps://container.googleapis.com/mcp

Medium RISK CLASS

Category Write

Parameters 22 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-googleapis-container-mcp/create-node-pool.md

WHAT IT DOES

What create_node_pool does on Mcp

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

Parameter	Type	Required	Description
`parent`	string	Yes	Required. The parent (project, location, cluster name) where the node pool will be created. Specified in the format `projects//locations//clusters/*`.
`nodePool`	string	Yes	Required. The node pool to create represented as a string using JSON format. The full node pool object can be found at https://docs.cloud.google.com/kubernetes-

Parameters from the server's own tool schema.

RISK

Why create_node_pool is rated Medium

Creating a node pool modifies cluster infrastructure by adding compute capacity. While reversible (via delete_k8s_resource), it has significant blast radius: an AI agent could rapidly scale up cluster costs, consume quotas, or create resource exhaustion. This is Write rather than Execute because the operation itself is a straightforward resource creation, not arbitrary code execution.

From the tool's definition Tool name 'create_node_pool' directly indicates creation of a new resource. Description states 'Creates a node pool for a specific GKE cluster.' This is a reversible modification operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_node_pool safely

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

create_node_pool Rate-limited

create_node_pool 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_node_pool": {
      "limits": [
        {
          "counter": "create_node_pool_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 Mcp, apply this rule, and every create_node_pool call is checked against it from then on.

FAQ

Questions about create_node_pool

What does the create_node_pool tool do? +

Creates a node pool for a specific GKE cluster. It is categorised as a Write tool in the Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does create_node_pool accept? +

create_node_pool accepts 2 parameters: parent, nodePool. Required: parent, nodePool. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_node_pool? +

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

What risk level is create_node_pool? +

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

Can I rate-limit create_node_pool? +

Yes. Add a rate_limit block to the create_node_pool 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_node_pool completely? +

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

create_node_pool is provided by the MCP server (https://container.googleapis.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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