diff --git a/index.html b/index.html
index 3a85fbe..8ddc129 100644
--- a/index.html
+++ b/index.html
@@ -10,6 +10,7 @@
     <meta name="apple-mobile-web-app-capable" content="yes" />
     <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
     <title>CDP Browser</title>
+    <!-- t094 preview smoke test (throwaway; PR closed after verifying per-branch previews) -->
   </head>
   <body>
     <div id="root"></div>
