# update_kubernetes_node_pool

A write tool on the Vultr MCP MCP server.

Agent View of the PolicyLayer registry record for `update_kubernetes_node_pool`. HTML page: https://policylayer.com/tools/rsp2k-mcp-vultr/update-kubernetes-node-pool

## Facts

- Tool: `update_kubernetes_node_pool`
- Server: Vultr MCP (`rsp2k/mcp-vultr`) — https://policylayer.com/tools/rsp2k-mcp-vultr.md
- Homepage: https://github.com/rsp2k/mcp-vultr
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "update_kubernetes_node_pool",
    "arguments": {}
  }
}
```

## Why update_kubernetes_node_pool is rated Medium

This tool modifies Kubernetes node pool configurations, which is a reversible Write operation. However, severity is high because misconfigured node pools could impact cluster availability, workload scheduling, and resource allocation across running applications. The empty description lowers confidence slightly, but the function name is explicit enough to classify with reasonable confidence.

From the tool's own definition: "Tool name 'update_kubernetes_node_pool' indicates modification of Kubernetes cluster infrastructure. The 'update' verb combined with 'node_pool' (a managed resource group in Kubernetes) clearly denotes a Write operation that modifies existing infrastructure…"

## Use case

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

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Vultr MCP:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_kubernetes_node_pool": {
      "limits": [
        {
          "counter": "update_kubernetes_node_pool_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Vultr MCP (283)

- `delete` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete.md
- `delete_bare_metal_server` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-bare-metal-server.md
- `delete_cdn_ssl_certificate` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-cdn-ssl-certificate.md
- `delete_cdn_zone` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-cdn-zone.md
- `delete_collection` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-collection.md
- `delete_connection_pool` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-connection-pool.md
- `delete_dns_domain` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-dns-domain.md
- `delete_dns_record` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-dns-record.md
- `delete_domain` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-domain.md
- `delete_export` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-export.md
- `delete_forwarding_rule` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-forwarding-rule.md
- `delete_group` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-group.md
- `delete_ipv4` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-ipv4.md
- `delete_iso` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-iso.md
- `delete_kafka_topic` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kafka-topic.md
- `delete_kubernetes_cluster` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-cluster.md
- `delete_kubernetes_cluster_with_resources` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-cluster-with-resources.md
- `delete_kubernetes_node` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-node.md
- `delete_kubernetes_node_pool` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-node-pool.md
- `delete_logical_database` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-logical-database.md
- `delete_record` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-record.md
- `delete_rule` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-rule.md
- `delete_serverless_inference` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-serverless-inference.md
- `delete_ssl` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-ssl.md
- `delete_startup_script` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-startup-script.md
- `delete_user` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-user.md
- `delete_vpc2` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-vpc2.md
- `purge_cdn_zone` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/purge-cdn-zone.md
- `remove_ip_whitelist_entry` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/remove-ip-whitelist-entry.md
- `remove_resource_from_collection` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/remove-resource-from-collection.md
- …and 253 more: https://policylayer.com/tools/rsp2k-mcp-vultr.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=rsp2k-mcp-vultr · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/rsp2k-mcp-vultr