build_summary.json

{
  "included_split_counts": {
    "train": 6000,
    "dev": 1000,
    "test": 1000
  },
  "included_total": 8000,
  "excluded_total": 92,
  "missing_image_total": 0,
  "exclusion_reasons": {
    "missing_split": 92
  }
}