diff --git a/src/cleanlab_codex/response_validation.py b/src/cleanlab_codex/response_validation.py
index e3bf78a..6be4ee7 100644
--- a/src/cleanlab_codex/response_validation.py
+++ b/src/cleanlab_codex/response_validation.py
@@ -1,5 +1,7 @@
 """
-Validation functions for evaluating LLM responses and determining if they should be replaced with Codex-generated alternatives.
+Deprecated validation functions for evaluating LLM responses and determining if they should be replaced with Codex-generated alternatives.
+
+For Codex-as-a-Backup integrations, please use the Validator class instead of these standalone functions.
 """
 
 from __future__ import annotations