diff --git a/src/agents/common/backends/minio_backend.py b/src/agents/common/backends/minio_backend.py
index 1661a74a..833b512d 100644
--- a/src/agents/common/backends/minio_backend.py
+++ b/src/agents/common/backends/minio_backend.py
@@ -210,7 +210,7 @@ class MinIOBackend(BackendProtocol):
             return f"Error reading {file_path}: {e}"
 
     def write(self, file_path: str, content: str) -> WriteResult:
-        """写入文件。
+        """写入文件（同步）。
 
         Args:
             file_path: 虚拟路径
@@ -240,6 +240,19 @@ class MinIOBackend(BackendProtocol):
             logger.error(f"MinIOBackend.write failed for {file_path}: {e}")
             return WriteResult(error=str(e))
 
+    async def awrite(self, file_path: str, content: str) -> WriteResult:
+        """异步写入文件。
+
+        Args:
+            file_path: 虚拟路径
+            content: 文件内容
+
+        Returns:
+            WriteResult
+        """
+        # 委托给同步 write 方法
+        return self.write(file_path, content)
+
     def edit(
         self,
         file_path: str,