diff --git a/frontend/src/app/DocumentsRoute.tsx b/frontend/src/app/DocumentsRoute.tsx
index 8609105..430f93f 100644
--- a/frontend/src/app/DocumentsRoute.tsx
+++ b/frontend/src/app/DocumentsRoute.tsx
@@ -26,12 +26,6 @@ const DocumentsInner: React.FC<{
   const { openDetailPanel } = surfaceConfig;
   const sidebarHidden = sidebarCollapsed || sidebarSuppressed;
 
-  const handleOpenSidepanel = useCallback((docId: string) => {
-    if (openDetailPanel) {
-      openDetailPanel(docId);
-    }
-  }, [openDetailPanel]);
-
   const documentsTablePropsWithNav = surfaceConfig.documentsTableProps
     ? {
       ...surfaceConfig.documentsTableProps,
@@ -75,7 +69,7 @@ const DocumentsInner: React.FC<{
     <DocumentOpenProvider
       onOpenViewer={onNavigate}
       onOpenPreview={openPreview}
-      onOpenSidepanel={handleOpenSidepanel}
+      onOpenSidepanel={openDetailPanel}
     >
       {renderSurface()}
     </DocumentOpenProvider>
diff --git a/frontend/src/viewer/logic/useDetailWorkspace.ts b/frontend/src/viewer/logic/useDetailWorkspace.ts
index 1ea27d3..6d2a6d1 100644
--- a/frontend/src/viewer/logic/useDetailWorkspace.ts
+++ b/frontend/src/viewer/logic/useDetailWorkspace.ts
@@ -45,7 +45,6 @@ interface UseDetailWorkspaceResult {
   openDetailPanel: ReturnType<typeof useDetailPanel>['openDetailPanel'];
   closeDetailPanel: ReturnType<typeof useDetailPanel>['closeDetailPanel'];
   handleDetailPanelClose: () => void;
-  inspectDocument: (docId: Identifier | null) => void;
   resolveThumbnailUrlForDoc: (doc: Document | null) => string | null;
   resolveFolderPath: (folderId?: Identifier | 'root') => Array<{ id: Identifier | 'root'; name: string }>;
 }
@@ -140,16 +139,6 @@ const useDetailWorkspace = ({
     [ensureAssetUrl, getAsset],
   );
 
-  const inspectDocument = useCallback(
-    (documentId: Identifier) => {
-      if (!documentId) {
-        return;
-      }
-      openDetailPanel(documentId);
-    },
-    [openDetailPanel],
-  );
-
   const handleDetailPanelClose = useCallback(() => {
     closeDetailPanel();
   }, [closeDetailPanel]);
@@ -208,6 +197,8 @@ const useDetailWorkspace = ({
     closeDetailPanel,
     handleDetailPanelClose,
     inspectDocument,
+    previewActive,
+    previewWorkspaceDocument,
     resolveThumbnailUrlForDoc,
     resolveFolderPath,
   };