{
  "schema_version": 1,
  "task_type": "regression",
  "analysis": "prediction",
  "target": "outcome",
  "target_unit": "synthetic_outcome_unit",
  "target_definition": {
    "sample_unit": "independent synthetic row",
    "averaging_period": "not applicable",
    "prediction_time": "all declared features available before prediction"
  },
  "features": [
    "x1",
    "x2",
    "treatment"
  ],
  "id_column": "id",
  "split": {
    "column": "dataset",
    "train": "train",
    "val": "val",
    "test": "test"
  },
  "categorical_features": [],
  "missing": {
    "policy": "drop",
    "sentinels": [
      -999
    ]
  },
  "feature_selection": {
    "mode": "manual"
  },
  "models": [
    {
      "id": "tree",
      "learner": "regr.rpart",
      "parameters": {
        "cp": 0.005,
        "maxdepth": 5,
        "minsplit": 10,
        "minbucket": 3
      }
    }
  ],
  "selection_metric": "rmse",
  "seed": 20261028,
  "row_limits": {
    "train": 1000,
    "val": 1000,
    "test": 1000
  },
  "explanation": {
    "methods": [
      "permutation"
    ],
    "features": [
      "x1",
      "treatment"
    ],
    "background_rows": 16,
    "validation_rows": 16,
    "permutation_repeats": 2,
    "pdp_points": 4
  }
}