diff --git a/apps/web/src/components/ChatView.tsx b/apps/web/src/components/ChatView.tsx
index c260c9e9118..0e34d09ae28 100644
--- a/apps/web/src/components/ChatView.tsx
+++ b/apps/web/src/components/ChatView.tsx
@@ -1231,9 +1231,6 @@ function ChatViewContent(props: ChatViewProps) {
   );
   const activeServerThread = serverThread ?? loadingServerThread;
   const markThreadVisited = useUiStateStore((store) => store.markThreadVisited);
-  const activeThreadLastVisitedAt = useUiStateStore(
-    (store) => store.threadLastVisitedAtById[routeThreadKey],
-  );
   const settings = useEnvironmentSettings(environmentId);
   // New-thread defaults live in the primary environment's settings.json (the
   // settings UI never writes to remote environments), so read them from the
@@ -1852,22 +1849,12 @@ function ChatViewContent(props: ChatViewProps) {
 
   useEffect(() => {
     if (!serverThread?.id) return;
-    const threadUpdatedAt = Date.parse(serverThread.updatedAt);
-    if (Number.isNaN(threadUpdatedAt)) return;
-    const lastVisitedAt = activeThreadLastVisitedAt ? Date.parse(activeThreadLastVisitedAt) : NaN;
-    if (!Number.isNaN(lastVisitedAt) && lastVisitedAt >= threadUpdatedAt) return;
 
     markThreadVisited(
       scopedThreadKey(scopeThreadRef(serverThread.environmentId, serverThread.id)),
       serverThread.updatedAt,
     );
-  }, [
-    activeThreadLastVisitedAt,
-    markThreadVisited,
-    serverThread?.environmentId,
-    serverThread?.id,
-    serverThread?.updatedAt,
-  ]);
+  }, [markThreadVisited, serverThread?.environmentId, serverThread?.id, serverThread?.updatedAt]);
 
   const selectedProviderByThreadId = composerActiveProvider ?? null;
   const threadProvider =