{
  "run_id": "RUN-4417",
  "plant": "HCMC-03",
  "line": "line-b",
  "model": "velo-trainer-2",
  "lot_size": 1200,
  "size_curve": "EU36-46",
  "materials": {
    "hide_batch": "LH-2291",
    "eva_lot": "EV-1180",
    "adhesive": "AD-22",
    "primer": "PR-9",
    "thread_lot": "TL-77"
  },
  "status": "succeeded",
  "total_duration_s": 3697,
  "approvals": 1,
  "results": {
    "leather_yield": 0.874,
    "first_pass_yield": 0.982,
    "packed_pairs": 1179,
    "rework_pairs": 21,
    "bond_gap_escapes": 0
  },
  "steps": [
    {
      "index": 1,
      "name": "twin.simulate_run",
      "node": "twin",
      "status": "success",
      "duration": "2m 40s",
      "detail": "Simulated the whole lot in the shoe-and-line twin before a single hide was cut — nest layout, mould recipe and bonding process window for EVA midsole and rubber outsole at 71% relative humidity."
    },
    {
      "index": 2,
      "name": "cut.nest_optimize",
      "node": "cut",
      "status": "success",
      "duration": "4m 12s",
      "detail": "Scanned 64 hides, marked 1,842 scars and brand marks, then solved a defect-aware nest across the EU 36–46 size curve. Leather yield came in at 87.4% against a 79.1% plant baseline."
    },
    {
      "index": 3,
      "name": "stitch.tension_control",
      "node": "stitch",
      "status": "success",
      "duration": "11m 08s",
      "detail": "Held stitch tension inside ±4% across 14 stitching stations, caught three skipped stitches on the lateral overlay and re-ran those uppers before they reached lasting."
    },
    {
      "index": 4,
      "name": "mold.density_control",
      "node": "mold",
      "status": "success",
      "duration": "9m 51s",
      "detail": "Trimmed press temperature and dwell on P-3 as the EVA lot ran slightly high in blowing agent, holding midsole density at 0.24 g/cm³ within ±1.8% and cure at 214 seconds."
    },
    {
      "index": 5,
      "name": "last.fit_control",
      "node": "last",
      "status": "success",
      "duration": "6m 33s",
      "detail": "Lasted the upper over last set L-42 under a heat and tension profile tuned to this leather lot. Toe-lasting deviation held at 0.6 mm; heel seat measured true on every pair sampled."
    },
    {
      "index": 6,
      "name": "bond.window_control",
      "node": "bond",
      "status": "approve",
      "duration": "3m 04s",
      "detail": "Humidity climbed to 71% mid-shift, pushing the primer flash-off outside the validated window. The agent proposed +2 °C activation and +0.3 bar press pressure, and paused for the quality engineer to approve — the change touches a validated bonding parameter."
    },
    {
      "index": 7,
      "name": "quality.inspect",
      "node": "check",
      "status": "success",
      "duration": "5m 47s",
      "detail": "Bond-line vision, 3D fit metrology and cosmetic scan on every pair. First-pass yield 98.2%; 21 pairs routed to rework for adhesive squeeze-out, none for bond gaps."
    },
    {
      "index": 8,
      "name": "robot.finish_pack",
      "node": "pack",
      "status": "success",
      "duration": "18m 22s",
      "detail": "Robotic cleaning, lacing, insole insertion and carton packing to spec C-4, with per-pair traceability written back to the MES and the brand’s quality portal."
    }
  ]
}