diff --git a/web/src/pages/agent/constant/index.tsx b/web/src/pages/agent/constant/index.tsx
index 76da5541b..420b2060c 100644
--- a/web/src/pages/agent/constant/index.tsx
+++ b/web/src/pages/agent/constant/index.tsx
@@ -700,13 +700,14 @@ export const RestrictedUpstreamMap = {
   [Operator.Placeholder]: [Operator.Begin],
   [Operator.DataOperations]: [Operator.Begin],
   [Operator.ListOperations]: [Operator.Begin],
+  [Operator.VariableAssigner]: [Operator.Begin],
+  [Operator.VariableAggregator]: [Operator.Begin],
   [Operator.Parser]: [Operator.Begin], // pipeline
   [Operator.Splitter]: [Operator.Begin],
   [Operator.HierarchicalMerger]: [Operator.Begin],
   [Operator.Tokenizer]: [Operator.Begin],
   [Operator.Extractor]: [Operator.Begin],
   [Operator.File]: [Operator.Begin],
-  [Operator.VariableAssigner]: [Operator.Begin],
 };
 
 export const NodeMap = {