diff --git a/gradio_ui/agent/task_run_agent.py b/gradio_ui/agent/task_run_agent.py
index 7264761..2422d27 100644
--- a/gradio_ui/agent/task_run_agent.py
+++ b/gradio_ui/agent/task_run_agent.py
@@ -33,9 +33,11 @@ class TaskRunAgent(BaseAgent):
         )
         vlm_response_json = json.loads(vlm_response)
         response_content = [BetaTextBlock(text=vlm_response_json["reasoning"], type='text')]
-        if 'box_centroid_coordinate' in vlm_response_json:
+        if "box_id" in vlm_response_json:
+            bbox = parsed_screen_result["parsed_content_list"][int(vlm_response_json["box_id"])].coordinates
+            box_centroid_coordinate = [int((bbox[0] + bbox[2]) / 2 ), int((bbox[1] + bbox[3]) / 2 )]
             move_cursor_block = BetaToolUseBlock(id=f'toolu_{uuid.uuid4()}',
-                                            input={'action': 'mouse_move', 'coordinate': vlm_response_json["box_centroid_coordinate"]},
+                                            input={'action': 'mouse_move', 'coordinate': box_centroid_coordinate},
                                             name='computer', type='tool_use')
             response_content.append(move_cursor_block)
 
diff --git a/gradio_ui/agent/verification_agent.py b/gradio_ui/agent/verification_agent.py
index 26cf91a..8efa21e 100644
--- a/gradio_ui/agent/verification_agent.py
+++ b/gradio_ui/agent/verification_agent.py
@@ -1,6 +1,5 @@
 import json
-from anthropic import BaseModel
-from pydantic import Field
+from pydantic import Field,BaseModel
 from gradio_ui.agent.base_agent import BaseAgent
 from xbrain.core.chat import run
 
@@ -43,7 +42,7 @@ prompt = """
 
 ### 输出格式 ###
 验证结果应采用以下JSON格式：
-{
+{{
   "验证状态": "成功/失败",
   "验证方法": "使用的验证方法",
   "证据": "支持验证结果的具体证据",
@@ -51,7 +50,7 @@ prompt = """
   "补救措施": [
     "再执行一次操作"
   ],
-}
+}}
 
 ### 验证方法 ###
 1. **视觉验证**：识别特定UI元素是否出现或消失
@@ -79,11 +78,11 @@ prompt = """
 操作：点击"登录"按钮
 预期结果：登录成功并显示首页
 验证输出：
-{
+{{
   "verification_status": "success",
   "verification_method": "视觉验证+内容验证",
   "reasoning": "1. 检测到欢迎消息'你好，用户名' 2. 导航栏显示用户头像 3. URL已变更为首页地址",
   "failure_reason": "无",
   "remedy_measures": [],
-}
+}}
 """
diff --git a/gradio_ui/loop.py b/gradio_ui/loop.py
index 2691564..a3e5200 100644
--- a/gradio_ui/loop.py
+++ b/gradio_ui/loop.py
@@ -38,8 +38,8 @@ def sampling_loop_sync(
         execute_task_plan(plan, vision_agent, task_run_agent, executor, messages)
         yield
         sleep(2)
-        verification_loop(vision_agent, verification_agent, executor, task_run_agent, messages)
-        yield
+        yield from verification_loop(vision_agent, verification_agent, executor, task_run_agent, messages)
+        
 
 def verification_loop(vision_agent, verification_agent, executor, task_run_agent, messages):
     """verification agent will be called in the loop"""