diff --git a/ZB.MOM.WW.Configuration/CLAUDE.md b/ZB.MOM.WW.Configuration/CLAUDE.md
index 818b340..aa56e2b 100644
--- a/ZB.MOM.WW.Configuration/CLAUDE.md
+++ b/ZB.MOM.WW.Configuration/CLAUDE.md
@@ -55,6 +55,7 @@ ZB.MOM.WW.Configuration/
 │   └── ZB.MOM.WW.Configuration/   # library project
 │       ├── OptionsValidatorBase.cs
 │       ├── ValidationBuilder.cs
+│       ├── Checks.cs                 # internal shared rule wording
 │       ├── ServiceCollectionExtensions.cs
 │       └── ConfigPreflight.cs
 └── tests/