diff --git a/src/blackboard/queries.py b/src/blackboard/queries.py
index 04e1001..27364af 100644
--- a/src/blackboard/queries.py
+++ b/src/blackboard/queries.py
@@ -64,7 +64,7 @@ class Queries:
                     all_done = all(s == "done" for s in dep_info.values())
                 else:
                     dep_info = {}
-                    all_done = True
+                    all_done = False  # 无依赖的 blocked 不自动推进（guardrail 拦截等场景）
                 result.append({
                     "task_id": r["id"],
                     "title": r["title"],