diff --git a/app/services/swipe_service.py b/app/services/swipe_service.py
index de5bbc7..390b019 100644
--- a/app/services/swipe_service.py
+++ b/app/services/swipe_service.py
@@ -30,8 +30,8 @@ class SwipeService:
         try:
             # 使用auto_discovery_adb_service获取屏幕尺寸
             result = await self.auto_discovery_adb_service.execute_shell_command(device_id, "wm size")
-            if result.get("success"):
-                output = result.get("output", "")
+            if result.success:
+                output = result.output
                 m = re.search(r"(\d+)\s*x\s*(\d+)", output)
                 if m:
                     w, h = int(m.group(1)), int(m.group(2))
@@ -39,8 +39,8 @@ class SwipeService:
             
             # 备用方案：dumpsys display
             result = await self.auto_discovery_adb_service.execute_shell_command(device_id, "dumpsys display")
-            if result.get("success"):
-                output = result.get("output", "")
+            if result.success:
+                output = result.output
                 m = re.search(r"(\d+)\s*x\s*(\d+)", output)
                 if m:
                     w, h = int(m.group(1)), int(m.group(2))
@@ -145,8 +145,8 @@ class SwipeService:
             # 使用auto_discovery_adb_service执行命令
             result = await self.auto_discovery_adb_service.execute_shell_command(device_id, swipe_command)
             
-            if not result.get("success"):
-                error_msg = result.get("error", "Unknown error")
+            if not result.success:
+                error_msg = result.error or "Unknown error"
                 logger.error(f"ADB滑动命令执行失败: {error_msg}")
                 return {
                     "success": False,
diff --git a/docs/modify.md b/docs/modify.md
index bcb2045..01e2207 100644
--- a/docs/modify.md
+++ b/docs/modify.md
@@ -1446,7 +1446,7 @@ if success:
                 else EventType.DEVICE_DISCONNECTED.value)
     
     # 获取合并后的设备信息（包含详细属性）
-    merged_device_info = {}
+    merged_device_info = device_info or {}
     if device_id in self._auto_discovered_devices:
         merged_device_info = self._auto_discovered_devices[device_id].get("device_info", {})
     
@@ -3442,7 +3442,7 @@ async def _send_loop(self):
 - ✅ heartbeat_channel 和 send_channel 保持分离
 - ✅ 在心跳插入前检查 send_channel 状态
 - ✅ 简化了发送循环，移除了复杂的优先级机制
-- ✅ 保持了架构的清晰和简洁
+- ✅ 保持了架构的清洁和简洁
 - ✅ 每个适配器只处理自己的 channel，职责明确
 - ✅ 添加了详细的调试日志，便于跟踪心跳发送状态
 
@@ -4730,7 +4730,7 @@ logger = get_structured_logger(__name__)
 - `app/services/atx_service.py` - 移除不存在的atx schema导入
 
 **修复内容**：
-```python
+```
 # 修复前（有问题）
 from app.utils.structured_log import get_structured_logger, LogLevel
 logger = get_structured_logger(__name__, LogLevel.INFO)