diff --git a/app/adapters/vultr.py b/app/adapters/vultr.py
index a102560..177b13d 100644
--- a/app/adapters/vultr.py
+++ b/app/adapters/vultr.py
@@ -2,6 +2,7 @@
 
 API 文档：https://www.vultr.com/api/
 所需配置：{"api_key": "..."}
+支持功能：实例列表、订阅账单、区域查询
 """
 
 import httpx