diff --git a/api/core/tools/tool/workflow_tool.py b/api/core/tools/tool/workflow_tool.py
index 071081303c3b2a..12e498e76d8cd5 100644
--- a/api/core/tools/tool/workflow_tool.py
+++ b/api/core/tools/tool/workflow_tool.py
@@ -72,6 +72,7 @@ def _invoke(
             result.append(self.create_file_var_message(file))
         
         result.append(self.create_text_message(json.dumps(outputs, ensure_ascii=False)))
+        result.append(self.create_json_message(outputs))
 
         return result