diff --git a/README-en.md b/README-en.md
index c0349d1..bda8564 100644
--- a/README-en.md
+++ b/README-en.md
@@ -162,6 +162,11 @@ I decide to pin him in README.md after comminucating with some sheet sharer.
 
 Welcome everyone to contribute this project, including pull request, issue, new feature request or translation.
 
+### ⚠️WARNING
+CodeFactor Evaluation: [![CodeFactor](https://www.codefactor.io/repository/github/stageguard/skyautoplayerscript/badge)](https://www.codefactor.io/repository/github/stageguard/skyautoplayerscript)
+
+Because of the limitation of Auto.js, it is impossible to extract functions and method so all functions are defined in a single file. Also, my coding skill is poor, so it is `a little hard` to understand source code.
+
 ## Contributor
 
 ### SkyAutoPlayerScript
diff --git a/README.md b/README.md
index 52e22cc..1a82564 100644
--- a/README.md
+++ b/README.md
@@ -165,6 +165,11 @@ Gitee 用户[嗨游圈(@vipssp)](https://gitee.com/vipssp)在**未经乐谱上
 
 欢迎任何人贡献本项目，包括但不限于 Pull Request，Issue，New feature request 或者 贡献翻译。
 
+### ⚠️警告
+CodeFactor 代码评估: [![CodeFactor](https://www.codefactor.io/repository/github/stageguard/skyautoplayerscript/badge)](https://www.codefactor.io/repository/github/stageguard/skyautoplayerscript)
+
+由于 Auto.js 的限制，无法将不同的功能分离，所以所有功能都在一个文件实现；再加上我糟糕的代码技能，源码会非常难读。
+
 ## 贡献者
 
 ### SkyAutoPlayerScript