second clean commit

web/src/app/chat/ChatPage.tsx

@@ -187,6 +187,8 @@ export function ChatPage({
   const enterpriseSettings = settings?.enterpriseSettings;
 
   const [documentSidebarToggled, setDocumentSidebarToggled] = useState(false);
+  const [filtersToggled, setFiltersToggled] = useState(false);
+  const [langgraphEnabled, setLanggraphEnabled] = useState(false);
 
   const [userSettingsToggled, setUserSettingsToggled] = useState(false);
 
@@ -1275,6 +1277,7 @@ export function ChatPage({
         systemPromptOverride:
           searchParams.get(SEARCH_PARAM_NAMES.SYSTEM_PROMPT) || undefined,
         useExistingUserMessage: isSeededChat,
+        useLanggraph: langgraphEnabled,
       });
 
       const delay = (ms: number) => {
@@ -2258,6 +2261,17 @@ export function ChatPage({
                   hideUserDropdown={user?.is_anonymous_user}
                 />
               )}
+              <div className="flex items-center justify-end px-4 py-2">
+                <label className="flex items-center cursor-pointer">
+                  <span className="mr-2 text-sm">Langgraph</span>
+                  <input
+                    type="checkbox"
+                    checked={langgraphEnabled}
+                    onChange={(e) => setLanggraphEnabled(e.target.checked)}
+                    className="form-checkbox h-4 w-4"
+                  />
+                </label>
+              </div>
 
               {documentSidebarInitialWidth !== undefined && isReady ? (
                 <Dropzone

web/src/app/chat/lib.tsx

@@ -148,6 +148,7 @@ export async function* sendMessage({
   useExistingUserMessage,
   alternateAssistantId,
   signal,
+  useLanggraph,
 }: {
   regenerate: boolean;
   message: string;
@@ -166,6 +167,7 @@ export async function* sendMessage({
   useExistingUserMessage?: boolean;
   alternateAssistantId?: number;
   signal?: AbortSignal;
+  useLanggraph?: boolean;
 }): AsyncGenerator<PacketType, void, unknown> {
   const documentsAreSelected =
     selectedDocumentIds && selectedDocumentIds.length > 0;
@@ -206,6 +208,7 @@ export async function* sendMessage({
           }
         : null,
     use_existing_user_message: useExistingUserMessage,
+    use_agentic_search: useLanggraph,
   });
 
   const response = await fetch(`/api/chat/send-message`, {