List all nodes in the cluster with their status, roles, and resource information
AI agents call k8s_list_nodes to retrieve information from Kubernetes MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs only a query/list operation to retrieve information about cluster nodes. It does not modify, execute, delete, or transfer resources. The blast radius of misuse is minimal—an AI agent gaining unauthorized node information could reconnaissance the cluster but cannot directly harm resources or operations.
From the tool's definition Tool name is 'k8s_list_nodes' and description states it 'List all nodes in the cluster with their status, roles, and resource information' — a retrieval operation with no side effects.
Attacks that exploit this kind of access
List all nodes in the cluster with their status, roles, and resource information. It is categorised as a Read tool in the Kubernetes MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Kubernetes MCP Server MCP server in PolicyLayer and add a rule for k8s_list_nodes: 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 Kubernetes MCP Server. Nothing to install.
k8s_list_nodes 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 k8s_list_nodes 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 k8s_list_nodes. 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.
k8s_list_nodes is provided by the Kubernetes MCP Server MCP server (mjrestivo16/mcp-kubernetes). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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