diff --git a/auth/auth.go b/auth/auth.go
index 7cb1d1fd..dcfd09eb 100644
--- a/auth/auth.go
+++ b/auth/auth.go
@@ -1,3 +1,5 @@
+// Package auth package provides authentication-related interfaces and types.
+// It also includes a basic implementation of credentials using username and password.
 package auth
 
 // StreamingCredentialsProvider is an interface that defines the methods for a streaming credentials provider.