{
  "created_at_utc": "2026-04-12T15:25:00Z",
  "run_id": "shaer_grpo_20260412_152315",
  "run_dir": "/root/workspace/Shaer/grpo/outputs/train/shaer_grpo_20260412_152315",
  "chain_id": "shaer_grpo_20260412_152315",
  "root_run_id": "shaer_grpo_20260412_152315",
  "parent_run_id": "",
  "parent_run_dir": "",
  "run_sequence_index": 0
}