diff --git a/index.html b/index.html
index e74ab44..3d67f1a 100644
--- a/index.html
+++ b/index.html
@@ -9,8 +9,15 @@
   </head>
   <body>
     <div id="root"></div>
-    <!-- IMPORTANT: Keep this script for advanced features; proxied via server to avoid CORS -->
-    <script src="/devv-app.js" type="module"></script>
+    <!-- IMPORTANT: Load external tool via runtime injection to avoid Vite resolving at build time -->
+    <script>
+      (function() {
+        var s = document.createElement('script');
+        s.type = 'module';
+        s.src = '/devv-app.js';
+        document.head.appendChild(s);
+      })();
+    </script>
     <script type="module" src="/src/main.tsx"></script>
   </body>
 </html>
