{
  "format": "habitat-intervention-summary/1",
  "models": {
    "full-v2": {
      "active_pairs": 240,
      "teacher_changed": 240,
      "raw_head_changed": 240,
      "greedy_category_changed": 183,
      "invariance_pass": 48,
      "invariance_total": 48,
      "xy_response_delta_mae": 0.9036784998824199,
      "mean_teacher_b_metrics": {
        "count_accuracy": 1.0,
        "colour_accuracy": 0.6452272727272726,
        "xy_mae": 6.148376538970254,
        "z_accuracy": 0.9292803030303031,
        "a_accuracy": 0.7902272727272728,
        "region_xyr_mae": 4.526484259797467,
        "region_p_accuracy": 1.0,
        "edge_f1": 0.5895171957671957
      }
    },
    "initial-v2": {
      "active_pairs": 240,
      "teacher_changed": 240,
      "raw_head_changed": 240,
      "greedy_category_changed": 65,
      "invariance_pass": 48,
      "invariance_total": 48,
      "xy_response_delta_mae": 1.907517337569346,
      "mean_teacher_b_metrics": {
        "count_accuracy": 0.9666666666666667,
        "colour_accuracy": 0.00962121212121212,
        "xy_mae": 56.28730030262109,
        "z_accuracy": 0.1665909090909091,
        "a_accuracy": 0.24890151515151515,
        "region_xyr_mae": 53.867684766153495,
        "region_p_accuracy": 0.0,
        "edge_f1": 0.010460434173669467
      }
    },
    "colours-only-v2": {
      "active_pairs": 240,
      "teacher_changed": 240,
      "raw_head_changed": 12,
      "greedy_category_changed": 12,
      "invariance_pass": 48,
      "invariance_total": 48,
      "xy_response_delta_mae": 1.5624630876878898,
      "mean_teacher_b_metrics": {
        "count_accuracy": 0.31666666666666665,
        "colour_accuracy": 0.10950757575757578,
        "xy_mae": 198.90042319933573,
        "z_accuracy": 0.14564393939393938,
        "a_accuracy": 0.26886363636363636,
        "region_xyr_mae": 62.28182915537445,
        "region_p_accuracy": 0.31666666666666665,
        "edge_f1": 0.0
      }
    }
  },
  "interpretation": "Sensitivity is not teacher correctness; raw field heads and teacher errors shown separately. Count copy prior and decoder validity are engineered."
}