diff --git a/shopelectro/context.py b/shopelectro/context.py
index a243911f..c9c984a3 100644
--- a/shopelectro/context.py
+++ b/shopelectro/context.py
@@ -117,7 +117,11 @@ def __or__(self, other: 'ObjectsComposition'):
         other.super = self
         return other
 
-
+# @todo #550:120m Move context realization to pure to objects composition.
+#  Discussed some thoughts with Artemiy via call.
+#  Artemiy will do it.
+#  For example SortedCategory should
+#  consist of separated SortedList and Category classes/objects.
 class AbstractContext(ObjectsComposition, ABC):
 
     super: 'AbstractContext' = None