List all Kubernetes clusters being monitored with their latest
AI agents call list_clusters to retrieve information from Kubopt without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool fetches a read-only list of monitored Kubernetes clusters. It performs no mutations, does not execute code or commands, does not delete data, and does not move money. It is purely informational retrieval, fitting the Read category. Severity is low because exposure of cluster names and metadata carries minimal risk on its own — it does not enable direct harmful action.
From the tool's definition 'List all Kubernetes clusters' — retrieves and queries cluster metadata without modification, creation, or deletion.
Documented attack patterns abuse exactly the kind of access list_clusters gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Kubopt, and nothing reaches the server without passing your rules. This is the rule we recommend for list_clusters:
{
"version": "1",
"default": "deny",
"tools": {
"list_clusters": {}
}
}list_clusters is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all Kubernetes clusters being monitored with their latest. It is categorised as a Read tool in the Kubopt MCP Server, which means it retrieves data without modifying state.
Register the Kubopt MCP server in PolicyLayer and add a rule for list_clusters: 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 Kubopt. Nothing to install.
list_clusters is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_clusters 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 list_clusters. 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.
list_clusters is provided by the Kubopt MCP server (kubeopt/kubeopt). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Kubopt, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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6 Kubopt tools catalogued and risk-classified — across an index of 43,000+ MCP servers.