diff --git a/src/daemon/dispatcher.py b/src/daemon/dispatcher.py
index 80c1cd6..148f1df 100644
--- a/src/daemon/dispatcher.py
+++ b/src/daemon/dispatcher.py
@@ -255,7 +255,7 @@ class Dispatcher:
         """构建重试上下文（前轮产出摘要 + 审查意见）
 
         如果任务是从 failed/pending 重新调度（有历史 attempts），
-        注入前轮的产出摘要和审查意见，让 Agent 知道上轮哪里不对。
+        注入前轮的失败原因，让 Agent 知道上轮哪里不对。
         """
         if not hasattr(task, 'retry_count') or (task.retry_count or 0) == 0:
             return ""
@@ -263,9 +263,24 @@ class Dispatcher:
         parts = ["## ⚠️ 重试上下文（上次执行失败，请注意以下反馈）"]
         parts.append(f"这是第 {task.retry_count + 1} 次尝试。上次执行的问题：")
 
-        # 尝试从 task 的 metadata 获取上次失败原因
-        if hasattr(task, 'notes') and task.notes:
-            parts.append(f"上轮说明: {task.notes}")
+        # 从 task_attempts 查上次 attempt 的 summary/outcome
+        if hasattr(self, '_queries') and self._queries:
+            try:
+                rows = self._queries.conn.execute(
+                    "SELECT outcome, summary, agent FROM task_attempts "
+                    "WHERE task_id = ? ORDER BY attempt_number DESC LIMIT 1",
+                    (task.id,)
+                ).fetchall()
+                if rows:
+                    outcome, summary, agent = rows[0]
+                    if outcome:
+                        parts.append(f"上轮结果: {outcome}")
+                    if summary:
+                        parts.append(f"上轮说明: {summary}")
+                    if agent:
+                        parts.append(f"上轮执行者: {agent}")
+            except Exception:
+                pass
 
         parts.append("请仔细检查上次的错误，避免重复犯错。")
         return "\n".join(parts)