diff --git a/src/main/ipc/handlers.ts b/src/main/ipc/handlers.ts
index 126bbae..d4d34f8 100644
--- a/src/main/ipc/handlers.ts
+++ b/src/main/ipc/handlers.ts
@@ -842,7 +842,7 @@ export function registerIpcHandlers(): void {
     return engine.getAllForProject();
   });
 
-  safeHandle('importDefinitions:update', async (_, id: string, updates: any) => {
+  safeHandle('importDefinitions:update', async (event, id: string, updates: any) => {
     const { ImportDefinitionEngine } = await import('../engine/ImportDefinitionEngine');
     const engine = new ImportDefinitionEngine();
     const projectEngine = getProjectEngine();
@@ -850,7 +850,12 @@ export function registerIpcHandlers(): void {
     if (activeProject) {
       engine.setProjectContext(activeProject.id);
     }
-    return engine.updateDefinition(id, updates);
+    const result = await engine.updateDefinition(id, updates);
+    // Notify renderer of name changes for sidebar/tab updates
+    if (result && updates.name !== undefined) {
+      event.sender.send('importDefinition-name-updated', { definitionId: id, name: result.name });
+    }
+    return result;
   });
 
   safeHandle('importDefinitions:delete', async (_, id: string) => {
diff --git a/src/main/preload.ts b/src/main/preload.ts
index f8c52b5..046427c 100644
--- a/src/main/preload.ts
+++ b/src/main/preload.ts
@@ -164,6 +164,11 @@ contextBridge.exposeInMainWorld('electronAPI', {
     getAll: () => ipcRenderer.invoke('importDefinitions:getAll'),
     update: (id: string, updates: unknown) => ipcRenderer.invoke('importDefinitions:update', id, updates),
     delete: (id: string) => ipcRenderer.invoke('importDefinitions:delete', id),
+    onNameUpdated: (callback: (data: { definitionId: string; name: string }) => void) => {
+      const subscription = (_event: Electron.IpcRendererEvent, data: { definitionId: string; name: string }) => callback(data);
+      ipcRenderer.on('importDefinition-name-updated', subscription);
+      return () => ipcRenderer.removeListener('importDefinition-name-updated', subscription);
+    },
   },
 
   // AI Chat (OpenCode Zen API integration)
diff --git a/src/renderer/components/Sidebar/Sidebar.tsx b/src/renderer/components/Sidebar/Sidebar.tsx
index ee44bb3..ddb36b3 100644
--- a/src/renderer/components/Sidebar/Sidebar.tsx
+++ b/src/renderer/components/Sidebar/Sidebar.tsx
@@ -1293,6 +1293,23 @@ const ImportList: React.FC = () => {
     init();
   }, [loadDefinitions]);
 
+  // Listen for import definition name updates
+  useEffect(() => {
+    const unsub = window.electronAPI?.importDefinitions.onNameUpdated((data) => {
+      setDefinitions(prev => 
+        prev.map(def => 
+          def.id === data.definitionId 
+            ? { ...def, name: data.name }
+            : def
+        )
+      );
+    });
+
+    return () => {
+      unsub?.();
+    };
+  }, []);
+
   const handleNewDefinition = async () => {
     try {
       const def = await window.electronAPI?.importDefinitions.create();
diff --git a/src/renderer/components/TabBar/TabBar.tsx b/src/renderer/components/TabBar/TabBar.tsx
index 5e7d145..efa5fc8 100644
--- a/src/renderer/components/TabBar/TabBar.tsx
+++ b/src/renderer/components/TabBar/TabBar.tsx
@@ -204,6 +204,21 @@ export const TabBar: React.FC = () => {
     fetchTitles();
   }, [tabs]); // Note: intentionally not including importDefTitles to avoid infinite loops
 
+  // Listen for import definition name updates
+  useEffect(() => {
+    const unsub = window.electronAPI?.importDefinitions.onNameUpdated((data) => {
+      setImportDefTitles(prev => {
+        const newTitles = new Map(prev);
+        newTitles.set(data.definitionId, data.name);
+        return newTitles;
+      });
+    });
+
+    return () => {
+      unsub?.();
+    };
+  }, []);
+
   // Check if arrows are needed based on scroll position
   const updateArrowVisibility = useCallback(() => {
     const container = tabsContainerRef.current;
diff --git a/src/renderer/types/electron.d.ts b/src/renderer/types/electron.d.ts
index f1f5aa5..9180e8f 100644
--- a/src/renderer/types/electron.d.ts
+++ b/src/renderer/types/electron.d.ts
@@ -403,6 +403,7 @@ export interface ElectronAPI {
     getAll: () => Promise<ImportDefinitionData[]>;
     update: (id: string, updates: Partial<Pick<ImportDefinitionData, 'name' | 'wxrFilePath' | 'uploadsFolderPath' | 'lastAnalysisResult'>>) => Promise<ImportDefinitionData | null>;
     delete: (id: string) => Promise<boolean>;
+    onNameUpdated: (callback: (data: { definitionId: string; name: string }) => void) => () => void;
   };
   chat: {
     // API Key Management