diff --git a/src/mobile-web/src/pages/ChatPage.tsx b/src/mobile-web/src/pages/ChatPage.tsx
index 538fad9f0..312717ed1 100644
--- a/src/mobile-web/src/pages/ChatPage.tsx
+++ b/src/mobile-web/src/pages/ChatPage.tsx
@@ -2419,9 +2419,9 @@ const ChatPage: React.FC<ChatPageProps> = ({ sessionMgr, sessionId, sessionName,
   useEffect(() => {
     const onKeyDown = (e: KeyboardEvent) => {
       if (e.key === 'Tab' && e.shiftKey) {
-        // Skip when the textarea is focused — its own React handler already fired.
-        const tag = (e.target as HTMLElement)?.tagName;
-        if (tag === 'TEXTAREA') return;
+        const target = e.target as HTMLElement;
+        const tag = target?.tagName;
+        if (tag === 'INPUT' || tag === 'TEXTAREA' || tag === 'SELECT' || target?.isContentEditable) return;
         e.preventDefault();
         cycleAgentModeRef.current();
       }
diff --git a/src/web-ui/src/flow_chat/components/ChatInput.tsx b/src/web-ui/src/flow_chat/components/ChatInput.tsx
index a03082bb6..19cad8b63 100644
--- a/src/web-ui/src/flow_chat/components/ChatInput.tsx
+++ b/src/web-ui/src/flow_chat/components/ChatInput.tsx
@@ -2057,7 +2057,6 @@ export const ChatInput: React.FC<ChatInputProps> = ({
       e.preventDefault();
       e.stopPropagation();
 
-      // Dismiss slash command if open
       if (slashCommandState.isActive) {
         setSlashCommandState({ isActive: false, kind: 'modes', query: '', selectedIndex: 0 });
         dispatchInput({ type: 'CLEAR_VALUE' });