Kubernetes MCP Server

Instructions

Implementation Reference

• server.js:1804-1810 (handler)

  The handler function for the 'get-contexts' tool that runs the kubectl command to list all contexts and returns the stdout as text content.

  case "get-contexts": {
    const cmd = `kubectl config get-contexts`;
    const { stdout } = await execAsync(cmd);
    return {
      content: [{ type: "text", text: stdout || "No contexts found" }]
    };
  }

• server.js:646-652 (schema)

  The tool definition including name, description, and input schema (empty object, no parameters required). This is part of the tools array returned by ListTools.

    name: "get-contexts",
    description: "List all kubectl contexts",
    inputSchema: {
      type: "object",
      properties: {}
    }
  },

• server.js:1392-1394 (registration)

  The request handler for listing tools, which returns the full tools array containing the 'get-contexts' tool definition.

  server.setRequestHandler(ListToolsRequestSchema, async () => {
    return { tools };
  });