{
  "identity": "字段教学清单，非平台原生可导入工作流",
  "fields": {
    "parent": "打开练习仓库后建立父conversation",
    "child_mode": "local child → isolated worktree",
    "task_A": "filter.py / 分类筛选",
    "task_B": "import_preview.py / CSV导入预览",
    "must_record": [
      "两条workspace绝对路径",
      "两份diff",
      "集成前主分支文件哈希"
    ]
  }
}