{
  "symbol": "XAUUSD",
  "timeframe": "M15",
  "source": "placeholder-ts-bars",
  "horizon": 12,
  "atr_period": 20,
  "data": {
    "train_length": 500,
    "max_bars": 3000,
    "validation": "expanding",
    "step": 1
  },
  "arima": {
    "p": 1,
    "d": 0,
    "q": 0,
    "fit_policy": "rolling",
    "fit_window": 300,
    "use_prediction_interval": true
  },
  "sax": {
    "word_length": 8,
    "alphabet_size": 5,
    "window_length": 24,
    "top_k_analogs": 10,
    "min_analogs": 5,
    "neutral_threshold": 0.25
  },
  "hybrid": {
    "confidence_threshold": 0.5
  },
  "baselines": {
    "include_drift": true
  },
  "costs": {
    "commission_per_trade": 0.0003,
    "spread_bps": 1.0,
    "units": "bps"
  },
  "reproducibility": {
    "seed": 42
  }
}