diff --git a/.claude/skills/epf-build/scripts/stub-db-create.ps1 b/.claude/skills/epf-build/scripts/stub-db-create.ps1
index 63666c7b..1043f2d9 100644
--- a/.claude/skills/epf-build/scripts/stub-db-create.ps1
+++ b/.claude/skills/epf-build/scripts/stub-db-create.ps1
@@ -1247,6 +1247,9 @@ $propsXml		</Properties>$childObjLine
 	}
 
 	Write-Host "Generated stub configuration with $($typeMap.Count) metadata types"
+	if ($registerColumns.Count -gt 0) {
+		Write-Host "WARNING: Register column categories (Dimension/Resource/Attribute) are guessed. Form field bindings may not survive round-trip through a real database." -ForegroundColor Yellow
+	}
 }
 
 # --- 5. Create infobase ---
diff --git a/.claude/skills/epf-build/scripts/stub-db-create.py b/.claude/skills/epf-build/scripts/stub-db-create.py
index 7d06e686..87a6c2a8 100644
--- a/.claude/skills/epf-build/scripts/stub-db-create.py
+++ b/.claude/skills/epf-build/scripts/stub-db-create.py
@@ -1031,6 +1031,8 @@ def main():
                 write_bom(os.path.join(obj_dir, f'{obj_name}.xml'), obj_xml)
 
         print(f'Generated stub configuration with {len(type_map)} metadata types')
+        if register_columns:
+            print('WARNING: Register column categories (Dimension/Resource/Attribute) are guessed. Form field bindings may not survive round-trip through a real database.')
 
     # Create infobase
     print(f'Creating infobase: {temp_base}')