recycle_kubernetes_node

THE RISK

High Risk

Why recycle_kubernetes_node needs a policy

Recycling a Kubernetes node involves draining, deleting, and reprovisioning the node, which is a significant infrastructure operation. It is not purely destructive (data is not permanently lost) but it does execute an external operation with potentially high blast radius (workloads disrupted, node temporarily unavailable). The description is empty, lowering confidence.

From the tool's definition Tool name: 'recycle_kubernetes_node' — 'recycle' implies restarting/replacing a Kubernetes node, which triggers an external infrastructure operation.

Documented attack patterns abuse exactly the kind of access recycle_kubernetes_node gives an agent:

POLICY

How to control recycle_kubernetes_node

PolicyLayer is an MCP gateway — it sits between your AI agents and Vultr MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for recycle_kubernetes_node:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "recycle_kubernetes_node": {
      "limits": [
        {
          "counter": "recycle_kubernetes_node_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

recycle_kubernetes_node stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Vultr MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

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All 284 Vultr MCP tools →

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Go deeper

High-risk tools in Vultr MCP → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about recycle_kubernetes_node

What does the recycle_kubernetes_node tool do? +

recycle_kubernetes_node. It is categorised as a Execute tool in the Vultr MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on recycle_kubernetes_node? +

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

What risk level is recycle_kubernetes_node? +

recycle_kubernetes_node is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit recycle_kubernetes_node? +

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

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

recycle_kubernetes_node is provided by the Vultr MCP server (rsp2k/mcp-vultr). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Vultr MCP tool call.

Start from Vultr MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →