{
  "expert": "meta_learner",
  "features": [
    "obi",
    "spread_pct",
    "e1_microstructure_pred",
    "e1_microstructure_dir",
    "e2_momentum_pred",
    "e2_momentum_dir",
    "e3_meanrev_pred",
    "e3_meanrev_dir",
    "e4_smartmoney_pred",
    "e4_smartmoney_dir"
  ],
  "metrics": {
    "accuracy": 0.5501,
    "win_rate": 0.5501,
    "sharpe": 71.8275,
    "n_samples": 2565
  },
  "classes": [
    -1,
    1
  ]
}