{
  "nodes": [
    {
      "id": "s1",
      "type": "startCall",
      "position": {"x": 0, "y": 0},
      "data": {"name": "Start", "prompt": "Greet.", "is_start": true}
    },
    {
      "id": "g1",
      "type": "globalNode",
      "position": {"x": 0, "y": 200},
      "data": {"name": "Global A", "prompt": "Use a calm tone."}
    },
    {
      "id": "g2",
      "type": "globalNode",
      "position": {"x": 0, "y": 400},
      "data": {"name": "Global B", "prompt": "Keep answers short."}
    }
  ],
  "edges": []
}