{
  "nodes": [
    {
      "id": "loadbalancer",
      "type": "loadBalancer",
      "position": { "x": 0, "y": 0 },
      "props": {
        "label": "LB",
        "algorithm": "round-robin"
      }
    },
    {
      "id": "webserver",
      "type": "webserver",
      "position": { "x": 100, "y": 0 },
      "props": {
        "label": "Web Server",
        "instanceSize": "medium",
        "capacityRPS": 5,
        "baseLatencyMs": 50,
        "penaltyPerRPS": 10
      }
    }
  ],
  "connections": [
    {
      "source": "loadbalancer",
      "target": "webserver",
      "label": "Traffic",
      "direction": "forward",
      "protocol": "HTTP",
      "tls": false,
      "capacity": 1000
    }
  ]
}