diff --git a/src/locales/config.ts b/src/locales/config.ts
index c9aecbb0..89cc553b 100644
--- a/src/locales/config.ts
+++ b/src/locales/config.ts
@@ -1,5 +1,9 @@
 /**
  * Locale configuration for supported languages and regions
+ *
+ * IMPORTANT: This is the single source of truth for supported languages.
+ * Any language not in this list will be rejected by the translation manager
+ * and fall back to English. This prevents path traversal attacks via dynamic imports.
  */
 
 import type { LocaleConfig, LanguageCode, RegionCode } from './types';