diff --git a/backend_service/generated_visualizations/py_tree.png b/backend_service/generated_visualizations/py_tree.png
index 9dc4a603..9dcf710d 100644
Binary files a/backend_service/generated_visualizations/py_tree.png and b/backend_service/generated_visualizations/py_tree.png differ
diff --git a/backend_service/src/prompts/system_prompt.txt b/backend_service/src/prompts/system_prompt.txt
index 3f7a7ac6..530aaf21 100644
--- a/backend_service/src/prompts/system_prompt.txt
+++ b/backend_service/src/prompts/system_prompt.txt
@@ -15,7 +15,7 @@
     {"name":"rotate_search","params":{"target_class":"string,要搜寻的目标类别","description":"string,可选,目标属性描述","step_angle":"float,可选,每一步旋转的角度","total_rotation":"float,可选,总共旋转搜索的角度"}},
     {"name":"manual_confirmation","params":{}},
     {"name":"loiter","params":{"duration":"[1,600]秒/until_condition:可选"}},
-    {"name":"object_detect","params":{"target_class":"person,bicycle,car,motorcycle,airplane,bus,train,truck,boat,traffic_light,fire_hydrant,stop_sign,parking_meter,bench,bird,cat,dog,horse,sheep,cow,elephant,bear,zebra,giraffe,backpack,umbrella,handbag,tie,suitcase,frisbee,skis,snowboard,sports_ball,kite,baseball_bat,baseball_glove,skateboard,surfboard,tennis_racket,bottle,wine_glass,cup,fork,knife,spoon,bowl,banana,apple,sandwich,orange,broccoli,carrot,hot_dog,pizza,donut,cake,chair,couch,potted_plant,bed,dining_table,toilet,tv,laptop,mouse,remote,keyboard,cell_phone,microwave,oven,toaster,sink,refrigerator,book,clock,vase,scissors,teddy_bear,hair_drier,toothbrush","description":"可选，","count":"默认1"}},
+    {"name":"object_detect","params":{"target_class":"person,bicycle,car,motorcycle,airplane,bus,train,truck,boat,traffic_light,fire_hydrant,stop_sign,parking_meter,bench,bird,cat,dog,horse,sheep,cow,elephant,bear,zebra,giraffe,backpack,umbrella,handbag,tie,suitcase,frisbee,skis,snowboard,sports_ball,kite,baseball_bat,baseball_glove,skateboard,surfboard,tennis_racket,bottle,wine_glass,cup,fork,knife,spoon,bowl,banana,apple,sandwich,orange,broccoli,carrot,hot_dog,pizza,donut,cake,chair,couch,potted_plant,bed,dining_table,toilet,tv,laptop,mouse,remote,keyboard,cell_phone,microwave,oven,toaster,sink,refrigerator,book,clock,vase,scissors,teddy_bear,hair_drier,toothbrush,garbage","description":"可选，","count":"默认1"}},
     {"name":"strike_target","params":{"target_class":"同object_detect","description":"可选，目标属性","count":"默认1"}},
     {"name":"battle_damage_assessment","params":{"target_class":"同object_detect","assessment_time":"[5,60]，默认15"}},
     {"name":"search_pattern","params":{"pattern_type":"spiral/grid","center_x":"±10000","center_y":"±10000","center_z":"[1,5000]","radius":"[5,1000]","target_class":"同object_detect","description":"可选，目标属性","count":"默认1"}},
diff --git a/backend_service/src/py_tree_generator.py b/backend_service/src/py_tree_generator.py
index 3c65ac1f..302688c4 100644
--- a/backend_service/src/py_tree_generator.py
+++ b/backend_service/src/py_tree_generator.py
@@ -162,7 +162,7 @@ def _generate_pytree_schema(allowed_actions: set, allowed_conditions: set) -> di
         "sandwich", "orange", "broccoli", "carrot", "hot_dog", "pizza", "donut", "cake", "chair",
         "couch", "potted_plant", "bed", "dining_table", "toilet", "tv", "laptop", "mouse", "remote",
         "keyboard", "cell_phone", "microwave", "oven", "toaster", "sink", "refrigerator", "book",
-        "clock", "vase", "scissors", "teddy_bear", "hair_drier", "toothbrush","balloon","trash","window"
+        "clock", "vase", "scissors", "teddy_bear", "hair_drier", "toothbrush","balloon","trash","window","garbage"
     ]
     
     # 递归节点定义