diff --git a/pkg/serra/root.go b/pkg/serra/root.go
index 7f7a3d0..9ed091e 100644
--- a/pkg/serra/root.go
+++ b/pkg/serra/root.go
@@ -1,3 +1,7 @@
+// Package serra
+//
+// It implements base functions and also cli wrappers
+// The entire tool consists only of this one package.
 package serra
 
 import (