gcp_gke_set_node_pool_size
Set the size of a node pool
This record as markdown: /tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-gke-set-node-pool-size.md
What gcp_gke_set_node_pool_size does on GCP MCP Server
AI agents use gcp_gke_set_node_pool_size to create or update resources in GCP MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GCP MCP Server environment.
Why gcp_gke_set_node_pool_size is rated Medium
This tool modifies cluster infrastructure by adjusting node pool size, which affects resource allocation and running workloads. The change is reversible (can be set back to previous size), so it is Write rather than Destructive. However, severity is high because misconfiguration could disrupt service availability, trigger unexpected scaling costs, or impact running applications.
From the tool's definition Tool name 'set_node_pool_size' and description 'Set the size of a node pool' indicate modification of GKE cluster infrastructure by changing the number of compute nodes.
Attacks that exploit this kind of access
The rule that runs gcp_gke_set_node_pool_size safely
PolicyLayer is an MCP gateway: it sits between your AI agents and GCP MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gcp_gke_set_node_pool_size, this is the rule to start with:
gcp_gke_set_node_pool_size 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.
The button opens the PolicyLayer dashboard: create your workspace, connect GCP MCP Server, apply this rule, and every gcp_gke_set_node_pool_size call is checked against it from then on.
Questions about gcp_gke_set_node_pool_size
Set the size of a node pool. It is categorised as a Write tool in the GCP MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the GCP MCP Server MCP server in PolicyLayer and add a rule for gcp_gke_set_node_pool_size: 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 GCP MCP Server. Nothing to install.
gcp_gke_set_node_pool_size is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the gcp_gke_set_node_pool_size 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.
Set action: deny in the PolicyLayer policy for gcp_gke_set_node_pool_size. 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.
gcp_gke_set_node_pool_size is provided by the GCP MCP Server MCP server (ahmedselimmansor-ctrl/gcp_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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