{
  "nodes": [
    {
      "id": "a",
      "type": "agentNode",
      "position": {"x": 0, "y": 0},
      "data": {"name": "Agent", "prompt": "Talk to the caller."}
    },
    {
      "id": "e",
      "type": "endCall",
      "position": {"x": 200, "y": 0},
      "data": {"name": "End", "prompt": "Say goodbye."}
    }
  ],
  "edges": [
    {
      "id": "a-e",
      "source": "a",
      "target": "e",
      "data": {"label": "agent to end", "condition": "always"}
    }
  ]
}