{
  "experiment_name": "baseline_v1",
  "dataset_snapshot_id": "snapshot_2026_03_20",
  "description": "Baseline swing-trade strategy: next-open entry, ATR stop, 2R target, 10-day max hold.",
  "base_config": "configs/backtest/defaults.json",
  "overrides": {},
  "splits": [
    {
      "kind": "year",
      "params": {}
    },
    {
      "kind": "walk_forward",
      "params": {
        "train_days": 252,
        "test_days": 63
      }
    }
  ],
  "tags": ["baseline", "next_open", "atr_stop"],
  "notes": "Phase 4 baseline run. Uses default config with no overrides."
}