{
  "run_at": "2026-05-13T16:20:10+08:00",
  "host": "mason-main",
  "shard": 0,
  "shards": 1,
  "symbols": 8,
  "combos": 920,
  "failed": 0,
  "trades": 245,
  "wins": 138,
  "losses": 107,
  "realized_roi_pct": 254.9,
  "output": "/tmp/quant-sweep-remote_smoke_v4b_20260513_161947.jsonl"
}