{
  "chest_logic": "v3",
  "chest_settings": {
    "arm_margin": "max(8px, 0.2 x span) per side",
    "arm_margin_mode": {
      "men": "auto",
      "women": "auto"
    },
    "aspect_correction": "on",
    "front_row_criterion": "longest torso span",
    "row_factor": 0.25,
    "scale_mode": "split",
    "search_pct": 5.0,
    "search_window": "down = pct, up = pct/2 of the shoulder-to-hip distance",
    "side_row_criterion": "smallest x0 (furthest forward)",
    "trust_gate": 0.95
  },
  "ratios": {
    "chest": "v3 validated (ankle-checked), always",
    "everything_else": "original body_measurement_core ratios"
  },
  "service": "ai-size-estimator",
  "status": "healthy"
}