fix: agent strategy (#2141)

api/core/application_manager.py

@@ -419,8 +419,9 @@ class ApplicationManager:
             datasets = {'strategy': 'router', 'datasets': []}
 
         if 'agent_mode' in copy_app_model_config_dict and copy_app_model_config_dict['agent_mode'] \
-                and 'enabled' in copy_app_model_config_dict['agent_mode'] and copy_app_model_config_dict['agent_mode'][
-            'enabled']:
+                and 'enabled' in copy_app_model_config_dict['agent_mode'] \
+                and copy_app_model_config_dict['agent_mode']['enabled']:
+            
             agent_dict = copy_app_model_config_dict.get('agent_mode', {})
             agent_strategy = agent_dict.get('strategy', 'cot')
 
@@ -465,6 +466,8 @@ class ApplicationManager:
                     dataset_id = tool_item['id']
                     dataset_ids.append(dataset_id)
             
+            if 'strategy' in copy_app_model_config_dict['agent_mode'] and \
+                    copy_app_model_config_dict['agent_mode']['strategy'] not in ['react_router', 'router']:
                 agent_prompt = agent_dict.get('prompt', None) or {}
                 # check model mode
                 model_mode = copy_app_model_config_dict.get('model', {}).get('mode', 'completion')