diff --git a/src/blackboard/models.py b/src/blackboard/models.py
index 22124d7..c141061 100644
--- a/src/blackboard/models.py
+++ b/src/blackboard/models.py
@@ -37,6 +37,9 @@ class Task:
     # v2.7 SubTask 层
     stage: Optional[str] = None              # 所属 Stage 标签
     stages_json: str = "[]"                   # 动态 Stage 定义（仅顶层 Task）
+    # v2.8 归档
+    archived: bool = False
+    archived_at: Optional[str] = None
 
     @classmethod
     def from_row(cls, row: Any) -> Task: