list_kubernetes_versions

THE RISK

Low Risk

Why list_kubernetes_versions needs a policy

This tool queries and returns available Kubernetes versions from Linode's infrastructure. It performs no side effects, makes no modifications, executes no code, and carries no financial or destructive implications. It is a straightforward informational read operation with minimal blast radius if misused.

From the tool's definition Tool name 'list_kubernetes_versions' and description 'List all available Kubernetes versions' indicate a read-only query operation that retrieves information without modifying or executing anything.

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

POLICY

How to control list_kubernetes_versions

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_kubernetes_versions": {}
  }
}

list_kubernetes_versions is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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All 416 Linode MCP Server tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_kubernetes_versions

What does the list_kubernetes_versions tool do? +

List all available Kubernetes versions. It is categorised as a Read tool in the Linode MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_kubernetes_versions? +

Register the Linode MCP Server MCP server in PolicyLayer and add a rule for list_kubernetes_versions: 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 Linode MCP Server. Nothing to install.

What risk level is list_kubernetes_versions? +

list_kubernetes_versions is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_kubernetes_versions? +

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

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

list_kubernetes_versions is provided by the Linode MCP Server MCP server (takashito/linode-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Linode MCP Server tool call.

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

CHECK YOUR STACK →