Refactor loop detection logic in ChatInput

- Use message finish state instead of session status for loop detection
- Add lastProcessedMessageId to prevent duplicate loop triggers
- Add XCOpenCodeWeb.exe to .gitignore

Note: Single-file exe now builds to ~150MB (down from ~300MB with Electron)

.gitignore

@@ -54,3 +54,4 @@ packages/intellij/
 
 # OS
 Thumbs.db
+web/XCOpenCodeWeb.exe

ui/src/components/chat/ChatInput.tsx

@@ -167,11 +167,9 @@ export const ChatInput: React.FC<ChatInputProps> = ({ onOpenSettings, scrollToBo
         current: number;
         total: number;
         prompt: string;
+        lastProcessedMessageId: string | null;
     } | null>(null);
 
-    // Get session status from store for loop detection
-    const sessionStatus = useSessionStore((state) => state.sessionStatus);
-
     const isDesktopExpanded = isExpandedInput && !isMobile;
 
     const sendableAttachedFiles = React.useMemo(
@@ -856,6 +854,7 @@ export const ChatInput: React.FC<ChatInputProps> = ({ onOpenSettings, scrollToBo
                     current: 1,
                     total: loopNum,
                     prompt: loopArgs,
+                    lastProcessedMessageId: null,
                 });
                 toast.info(`Loop started: ${loopNum} iterations`);
                 // Clear input
@@ -952,19 +951,30 @@ export const ChatInput: React.FC<ChatInputProps> = ({ onOpenSettings, scrollToBo
     // Update ref with latest handleSubmit on every render
     handleSubmitRef.current = handleSubmit;
 
-    // Handle loop: detect when AI finishes and send next iteration
+    // Handle loop: detect when AI finishes (finish === 'stop') and send next iteration
     React.useEffect(() => {
         if (!loopState?.active || !currentSessionId) {
             return;
         }
 
-        const status = sessionStatus?.get(currentSessionId);
-        if (status?.type === 'idle') {
-            // AI finished, check if we should continue looping
-            if (loopState.current <= loopState.total) {
+        const messages = useMessageStore.getState().messages.get(currentSessionId);
+        if (!messages) return;
+
+        const assistantMessages = messages.filter((m) => m.info.role === 'assistant');
+        const lastAssistant = assistantMessages[assistantMessages.length - 1];
+        if (!lastAssistant) return;
+
+        const messageId = lastAssistant.info.id;
+        const finish = lastAssistant.info.finish;
+
+        if (finish === 'stop' && messageId !== loopState.lastProcessedMessageId) {
             if (loopState.current < loopState.total) {
                 const next = loopState.current + 1;
-                    setLoopState({ ...loopState, current: next });
+                setLoopState({
+                    ...loopState,
+                    current: next,
+                    lastProcessedMessageId: messageId,
+                });
                 useSessionStore.getState().sendMessage(
                     loopState.prompt,
                     currentProviderId,
@@ -977,12 +987,10 @@ export const ChatInput: React.FC<ChatInputProps> = ({ onOpenSettings, scrollToBo
                     inputMode
                 );
             } else {
-                    // Loop complete - all iterations sent
                 setLoopState(null);
             }
         }
-        }
-    }, [loopState, sessionStatus, currentSessionId, currentProviderId, currentModelId, currentAgentName, currentVariant, inputMode]);
+    }, [loopState, sessionMessages, currentSessionId, currentProviderId, currentModelId, currentAgentName, currentVariant, inputMode]);
 
     // Primary action for send button - respects queue mode setting
     const handlePrimaryAction = React.useCallback(() => {