diff --git a/src/components/auth/SignupDialog.tsx b/src/components/auth/SignupDialog.tsx
index c7cfbf5..28ee399 100644
--- a/src/components/auth/SignupDialog.tsx
+++ b/src/components/auth/SignupDialog.tsx
@@ -1,3 +1,6 @@
+// NOTE: This file is stable and usually should not be modified.
+// It is important that all functionality in this file is preserved, and should only be modified if explicitly requested.
+
 import React, { useState, useEffect, useRef } from 'react';
 import { Download, Key, Copy, Upload } from 'lucide-react';
 import { Button } from '@/components/ui/button';