diff --git a/pipeline_service/agent_loop.py b/pipeline_service/agent_loop.py
index 0467ed9..3a09ad1 100644
--- a/pipeline_service/agent_loop.py
+++ b/pipeline_service/agent_loop.py
@@ -780,6 +780,11 @@ async def _create_next_task(sor, project_id, task, next_role, pm_comment=''):
     new_title = f"{title}（{next_role}阶段）"
     new_params = {**params, 'previous_role': _normalize_role(getattr(task, 'role', '')),
                   'previous_task_id': getattr(task, 'id', ''), 'pm_comment': pm_comment}
+    # 清除 pm_assigned：它是「PM 按模块清单派发」的标记，只作用于当前任务；
+    # 下一角色任务是系统自动创建（非 PM 派发），若继承会污染——例如 PM 派发的 design 任务
+    # 带 pm_assigned=True，design approved 后自动创建的 develop 任务继承了它，被 1785 行的
+    # deploy_test 触发判断误判为「模块级 develop」，导致应用脚手架 develop approved 后跳过 deploy_test。
+    new_params.pop('pm_assigned', None)
     new_task_id = getID()
     await sor.C('pipeline_tasks', {
         'id': new_task_id, 'tenant_id': project_id, 'pipeline_id': 'role_task',