{
  "schema_version": "synthetic-probe-v1",
  "dataset_kind": "synthetic_only",
  "contains_private_data": false,
  "snapshot_revision": "synthetic_probe_v1_20261009",
  "stock_count": 2,
  "stocks": [
    {
      "stock_id": "DEMO_ALPHA",
      "name": "Fictional Alpha",
      "mock_score": 61
    },
    {
      "stock_id": "DEMO_BETA",
      "name": "Fictional Beta",
      "mock_score": 42
    }
  ],
  "end_marker": "STOCK_AI_SYNTHETIC_V1_COMPLETE"
}