diff --git a/src/daemon/ticker.py b/src/daemon/ticker.py
index 4ebf211..f72681a 100644
--- a/src/daemon/ticker.py
+++ b/src/daemon/ticker.py
@@ -363,9 +363,176 @@ class Ticker:
         return refreshed
 
     # ------------------------------------------------------------------
-    # 依赖推进
+    # 一轮结束检测 + 庞统 review (v2.9 #01)
     # ------------------------------------------------------------------
 
+    MAX_ROUNDS = 5  # §4.5 防无限循环
+
+    async def _check_round_complete(self, db_path: Path,
+                                     project_id: str) -> List[str]:
+        """检测 parent task 下所有 sub task 终态 → spawn 庞统 review
+
+        流程（§4.4）：
+        1. 扫描所有 parent task
+        2. 对每个 parent 检查 sub task 是否全部终态
+        3. 检查 round_count 上限
+        4. increment round_count
+        5. spawn 庞统 review
+        """
+        if not self.dispatcher or not self.spawner:
+            return []
+
+        bb = Blackboard(db_path)
+        reviewed: List[str] = []
+
+        # 找所有 parent task（有子 task 的）
+        conn = get_connection(db_path)
+        try:
+            parent_rows = conn.execute(
+                "SELECT DISTINCT parent_task FROM tasks WHERE parent_task IS NOT NULL"
+            ).fetchall()
+        finally:
+            conn.close()
+
+        for row in parent_rows:
+            parent_id = row["parent_task"]
+            try:
+                summary = bb.get_subtasks_summary(parent_id)
+                if not summary or not summary["all_terminal"]:
+                    continue
+
+                # 检查 parent 自身状态：只有 done 状态的 parent 才触发
+                # （聚合后 parent 状态为 done 说明所有 sub 都完了）
+                if summary["parent_status"] != "done":
+                    continue
+
+                # 检查 round_count 上限
+                if summary["round_count"] >= self.MAX_ROUNDS:
+                    logger.warning(
+                        "Parent %s reached max rounds (%d), skipping review",
+                        parent_id, self.MAX_ROUNDS)
+                    continue
+
+                # 递增 round_count
+                new_round = bb.increment_round_count(parent_id)
+
+                # 构建庞统 review 上下文
+                outputs = bb.get_aggregate_outputs(parent_id)
+                comments = bb.get_round_comments(parent_id)
+                parent_task = bb.get_task(parent_id)
+
+                if not parent_task:
+                    continue
+
+                # spawn 庞统 review
+                review_prompt = self._build_review_prompt(
+                    parent_task, summary, outputs, comments, new_round
+                )
+
+                spawned = await self._spawn_pangtong_review(
+                    parent_task, review_prompt, project_id
+                )
+                if spawned:
+                    reviewed.append(parent_id)
+                    logger.info(
+                        "Round %d review spawned for parent %s (subs: %s)",
+                        new_round, parent_id, summary
+                    )
+            except Exception as e:
+                logger.exception("Round check error for parent %s", parent_id)
+
+        return reviewed
+
+    def _build_review_prompt(self, parent_task, summary: dict,
+                             outputs: list, comments: list,
+                             round_num: int) -> str:
+        """构建庞统 review prompt（§4.2 三问框架）"""
+        goal = parent_task.description or parent_task.title
+        must_haves = parent_task.must_haves or "{}"
+
+        # 成果物摘要（限制 token）
+        output_lines = []
+        for o in outputs[:20]:  # 最多 20 个
+            output_lines.append(
+                f"- [{o.get('task_title', '?')}] {o.get('title', '?')} "
+                f"({o.get('output_type', '?')}) by {o.get('agent', '?')}"
+            )
+
+        # 讨论摘要（限制 50 条）
+        comment_lines = []
+        for c in comments[:50]:
+            comment_lines.append(
+                f"[{c.get('created_at', '?')[:16]}] {c.get('author', '?')}: {c.get('body', '?')[:200]}"
+            )
+
+        return f"""## 庞统 Review（第 {round_num} 轮）
+
+### Goal
+{goal}
+
+### 验收标准
+{must_haves}
+
+### 本轮 Sub Task 状态
+- 完成: {summary['done']}
+- 失败: {summary['failed']}
+- 取消: {summary['cancelled']}
+- 总计: {summary['total']}
+
+### 成果物
+{chr(10).join(output_lines) if output_lines else '无'}
+
+### 黑板讨论
+{chr(10).join(comment_lines) if comment_lines else '无'}
+
+### 三问
+1. Goal 还清晰吗？（是否有 goal drift）
+2. 成果物覆盖 goal 了吗？（逐条检查验收标准）
+3. 下一轮需要做什么？（创建新 sub tasks / 标记完成 / 调整方向）
+
+### 失败处理
+{f'有 {summary["failed"]} 个 sub task failed，优先判断是应该重试、换人、还是调整方案。' if summary['failed'] > 0 else '无失败'}
+
+### 你可以
+- 创建新一轮 sub tasks（通过 API: POST /api/projects/{{pid}}/tasks）
+- 调整 goal（更新 parent task description/must_haves）
+- 标记完成（如果 goal 已达成，回复 GOAL_ACHIEVED）
+
+Round 上限: {self.MAX_ROUNDS}（当前第 {round_num} 轮）
+"""
+
+    async def _spawn_pangtong_review(self, parent_task,
+                                      review_prompt: str,
+                                      project_id: str) -> bool:
+        """Spawn 庞统进行 review"""
+        try:
+            agent_id = "pangtong-fujunshi"
+            session_id = f"review-{parent_task.id}-r{parent_task.round_count + 1}"
+
+            # 构建上下文
+            context = self.spawner.build_context(
+                agent_id=agent_id,
+                task_id=parent_task.id,
+                project_id=project_id,
+            )
+
+            # 拼接 prompt
+            full_prompt = f"{context}\n\n{review_prompt}"
+
+            # spawn
+            result = await self.spawner.spawn(
+                agent_id=agent_id,
+                session_id=session_id,
+                prompt=full_prompt,
+                project_id=project_id,
+                task_id=parent_task.id,
+            )
+
+            return result is not None
+        except Exception as e:
+            logger.exception("Failed to spawn pangtong review for %s", parent_task.id)
+            return False
+
     def _advance_dependencies(self, db_path: Path) -> List[str]:
         """检查 blocked 任务，若所有依赖已完成则推进为 pending