diff --git a/frontend/src/desktop/DesktopWorkspace.tsx b/frontend/src/desktop/DesktopWorkspace.tsx
index 6ee5831..a02d34a 100644
--- a/frontend/src/desktop/DesktopWorkspace.tsx
+++ b/frontend/src/desktop/DesktopWorkspace.tsx
@@ -118,20 +118,26 @@ type WorkspaceSnapshotState = {
   initialLoadDone: boolean;
 };
 
-import type { DocumentsViewProps } from '../documents/panel/DocumentsPanel';
-
-interface DesktopWorkspaceProps extends DocumentsViewProps {
-  // Override entries if needed, or rely on DocumentsViewProps
-  // entries: DocumentsListEntry[]; 
-}
-
-interface DesktopWorkspaceViewProps {
-  engine: WorkspaceEngine;
-  items: DeskDocument[];
-  containerRef: React.RefObject<HTMLDivElement>;
+export interface DeskTagInteractions {
+  handleTagDragEnterDoc: (...args: unknown[]) => void;
+  handleTagDragOverDoc: (...args: unknown[]) => void;
+  handleTagDragLeaveDoc: (...args: unknown[]) => void;
+  handleTagDropOnDoc: (...args: unknown[]) => void;
+  handleDocTagPointerDown: (...args: unknown[]) => void;
+  handleDocTagDragStart: (...args: unknown[]) => void;
+  handleDocTagDrag: (...args: unknown[]) => void;
+  handleDocTagDragEnd: (...args: unknown[]) => void;
   handleCanvasDragOver: (event: React.DragEvent<HTMLDivElement>) => void;
   handleCanvasDragLeave: (event: React.DragEvent<HTMLDivElement>) => void;
   handleCanvasDrop: (event: React.DragEvent<HTMLDivElement>) => void;
+}
+
+import type { DocumentsViewProps } from '../documents/panel/DocumentsPanel';
+
+interface DesktopWorkspaceViewProps extends Omit<DocumentsViewProps, 'entries' | 'activeTagFilters'> {
+  engine: WorkspaceEngine;
+  items: DeskDocument[];
+  containerRef: React.RefObject<HTMLDivElement>;
   ensureDocumentSize: (doc: DeskDocument | null) => DocumentSizeInfo | null;
   layoutSnapshot: Map<string, LayoutEntry>;
   layoutRef: React.MutableRefObject<Map<string, LayoutEntry>>;
@@ -142,26 +148,14 @@ interface DesktopWorkspaceViewProps {
   tagDropTargetId: string | null;
   pendingTagDocId: string | null;
   pendingRemovalTag: unknown;
-  ensureAssetUrl?: DesktopWorkspaceProps['ensureAssetUrl'];
-  getDocumentAsset?: DesktopWorkspaceProps['getDocumentAsset'];
   handleNavigatorSnapshot: (docId: Identifier | null, snapshot: NavigatorSnapshot | null) => void;
   activeTagSet: Set<string>;
-  handleTagDragEnterDoc: (...args: unknown[]) => void;
-  handleTagDragOverDoc: (...args: unknown[]) => void;
-  handleTagDragLeaveDoc: (...args: unknown[]) => void;
-  handleTagDropOnDoc: (...args: unknown[]) => void;
-  handleDocTagPointerDown: (...args: unknown[]) => void;
-  handleDocTagDragStart: (...args: unknown[]) => void;
-  handleDocTagDrag: (...args: unknown[]) => void;
-  handleDocTagDragEnd: (...args: unknown[]) => void;
+  tagInteractions: DeskTagInteractions;
   overlayDisplay: OverlayDisplay | null;
   closeOverlay: () => void;
   overlayOriginRect: DOMRect | null;
   overlayOriginTransform: OverlayOriginTransform | null;
   overlayDocument: DeskDocument | null;
-  onDocumentClick?: DesktopWorkspaceProps['onDocumentClick'];
-  onDocumentStackSelect?: (docIds: Identifier[], event?: PointerEvent | MouseEvent | null) => void;
-  onPromoteSelection?: (docId: Identifier | null) => void;
   documentLookup: Map<string, DeskDocument>;
   selectedDocumentIds: Identifier[];
   onClearSelection: () => void;
@@ -176,24 +170,22 @@ interface DesktopWorkspaceViewProps {
   openOverlayForDoc: (docId: Identifier | null, originInfo?: OverlayOriginHint | null) => void;
   recalcVisibleDocIds: () => void;
   dragSettings: DragSettings;
-  onDocumentActivate?: DesktopWorkspaceProps['onDocumentActivate'];
   markLayoutDirty: () => void;
 }
 
 const defaultGetDocumentAsset: GetAsset = () => null;
 
-const DesktopWorkspace: React.FC<DesktopWorkspaceProps> = ({
+const DesktopWorkspace: React.FC<DocumentsViewProps> = ({
   entries = [],
-  onDocumentActivate = null,
-  onDocumentClick = null,
-  onDocumentTagDrop = null,
-  ensureAssetUrl = null,
-  getDocumentAsset = defaultGetDocumentAsset,
   activeTagFilters = [],
+  onDocumentTagDrop = null,
   tenantId = null,
   viewId = 'default',
   documentLinks,
   ensureDownloadUrl,
+  ensureAssetUrl = null,
+  getDocumentAsset = defaultGetDocumentAsset,
+  ...passThroughProps
 }) => {
   const {
     selectedDocumentIds,
@@ -526,20 +518,6 @@ const DesktopWorkspace: React.FC<DesktopWorkspaceProps> = ({
     requestCanvasFocus,
   });
 
-  const {
-    handleTagDragEnterDoc,
-    handleTagDragOverDoc,
-    handleTagDragLeaveDoc,
-    handleTagDropOnDoc,
-    handleCanvasDragOver,
-    handleCanvasDragLeave,
-    handleCanvasDrop,
-    handleDocTagPointerDown,
-    handleDocTagDragStart,
-    handleDocTagDrag,
-    handleDocTagDragEnd,
-  } = tagInteractions;
-
   useEffect(() => {
     const current = docSizeMapRef.current;
     const next = new Map<string, DocumentSizeInfo>(current);
@@ -789,110 +767,45 @@ const DesktopWorkspace: React.FC<DesktopWorkspaceProps> = ({
     [],
   );
 
-  const viewProps = useMemo<DesktopWorkspaceViewProps>(
-    () => ({
-      engine,
-      items,
-      containerRef,
-      handleCanvasDragOver,
-      handleCanvasDragLeave,
-      handleCanvasDrop,
-      ensureDocumentSize,
-      layoutSnapshot,
-      layoutRef,
-      dragTransformsRef,
-      itemRefs,
-      visibleDocIds,
-      draggingId,
-      tagDropTargetId,
-      pendingTagDocId,
-      pendingRemovalTag,
-      ensureAssetUrl,
-      getDocumentAsset,
-      handleNavigatorSnapshot,
-      activeTagSet,
-      handleTagDragEnterDoc,
-      handleTagDragOverDoc,
-      handleTagDragLeaveDoc,
-      handleTagDropOnDoc,
-      handleDocTagPointerDown,
-      handleDocTagDragStart,
-      handleDocTagDrag,
-      handleDocTagDragEnd,
-      overlayDisplay,
-      closeOverlay,
-      overlayOriginRect,
-      overlayOriginTransform,
-      overlayDocument,
-      onDocumentClick,
-      handleStackSelect,
-      handlePromoteSelection,
-      onDocumentStackSelect: handleStackSelect,
-      onPromoteSelection: handlePromoteSelection,
-      selectedDocumentIds,
-      onClearSelection: clearSelection,
-      documentLookup,
-      resolveBaseMetrics,
-      bringToFront,
-      setDraggingId,
-      canvasSize,
-      openOverlayForDoc,
-      recalcVisibleDocIds,
-      dragSettings,
-      onDocumentActivate,
-      markLayoutDirty,
-    }),
-    [
-      activeTagSet,
-      bringToFront,
-      canvasSize,
-      closeOverlay,
-      containerRef,
-      draggingId,
-      dragSettings,
-      engine,
-      ensureAssetUrl,
-      ensureDocumentSize,
-      getDocumentAsset,
-      dragTransformsRef,
-      handleCanvasDragLeave,
-      handleCanvasDragOver,
-      handleCanvasDrop,
-      handleDocTagDrag,
-      handleDocTagDragEnd,
-      handleDocTagDragStart,
-      handleDocTagPointerDown,
-      handleNavigatorSnapshot,
-      handleTagDragEnterDoc,
-      handleTagDragLeaveDoc,
-      handleTagDragOverDoc,
-      handleTagDropOnDoc,
-      itemRefs,
-      items,
-      layoutRef,
-      layoutSnapshot,
-      onDocumentClick,
-      handleStackSelect,
-      handlePromoteSelection,
-      openOverlayForDoc,
-      overlayDisplay,
-      overlayOriginRect,
-      overlayOriginTransform,
-      overlayDocument,
-      documentLookup,
-      pendingRemovalTag,
-      pendingTagDocId,
-      recalcVisibleDocIds,
-      resolveBaseMetrics,
-      setDraggingId,
-      selectedDocumentIds,
-      clearSelection,
-      onDocumentActivate,
-      markLayoutDirty,
-      tagDropTargetId,
-      visibleDocIds,
-    ],
-  );
+  const viewProps: DesktopWorkspaceViewProps = {
+    ...passThroughProps,
+    engine,
+    items,
+    containerRef,
+    ensureDocumentSize,
+    layoutSnapshot,
+    layoutRef,
+    dragTransformsRef,
+    itemRefs,
+    visibleDocIds,
+    draggingId,
+    tagDropTargetId,
+    pendingTagDocId,
+    pendingRemovalTag,
+    ensureAssetUrl,
+    getDocumentAsset,
+    handleNavigatorSnapshot,
+    activeTagSet,
+    tagInteractions,
+    overlayDisplay,
+    closeOverlay,
+    overlayOriginRect,
+    overlayOriginTransform,
+    overlayDocument,
+    onDocumentStackSelect: handleStackSelect,
+    onPromoteSelection: handlePromoteSelection,
+    selectedDocumentIds,
+    onClearSelection: clearSelection,
+    documentLookup,
+    resolveBaseMetrics,
+    bringToFront,
+    setDraggingId,
+    canvasSize,
+    openOverlayForDoc,
+    recalcVisibleDocIds,
+    dragSettings,
+    markLayoutDirty,
+  };
   return <DesktopWorkspaceView {...viewProps} />;
 };
 
@@ -900,12 +813,10 @@ function DesktopWorkspaceView({
   engine,
   items,
   containerRef,
-  handleCanvasDragOver,
-  handleCanvasDragLeave,
-  handleCanvasDrop,
   ensureDocumentSize,
   layoutSnapshot,
   layoutRef,
+  dragTransformsRef,
   itemRefs,
   visibleDocIds,
   draggingId,
@@ -916,14 +827,7 @@ function DesktopWorkspaceView({
   getDocumentAsset,
   handleNavigatorSnapshot,
   activeTagSet,
-  handleTagDragEnterDoc,
-  handleTagDragOverDoc,
-  handleTagDragLeaveDoc,
-  handleTagDropOnDoc,
-  handleDocTagPointerDown,
-  handleDocTagDragStart,
-  handleDocTagDrag,
-  handleDocTagDragEnd,
+  tagInteractions,
   overlayDisplay,
   closeOverlay,
   overlayOriginRect,
@@ -944,7 +848,6 @@ function DesktopWorkspaceView({
   dragSettings,
   onDocumentActivate,
   markLayoutDirty,
-  dragTransformsRef,
 }: DesktopWorkspaceViewProps) {
   const handleDeskDocumentActivate = useCallback(
     (docId: Identifier) => {
@@ -1036,9 +939,9 @@ function DesktopWorkspaceView({
           ref={containerRef}
           tabIndex={0}
           onKeyDown={handleShellKeyDown}
-          onDragOver={handleCanvasDragOver}
-          onDragLeave={handleCanvasDragLeave}
-          onDrop={handleCanvasDrop}
+          onDragOver={tagInteractions.handleCanvasDragOver}
+          onDragLeave={tagInteractions.handleCanvasDragLeave}
+          onDrop={tagInteractions.handleCanvasDrop}
           onPointerDown={(event) => {
             if (event.target === event.currentTarget) {
               onClearSelection();
@@ -1129,14 +1032,14 @@ function DesktopWorkspaceView({
                   handleNavigatorSnapshot={handleNavigatorSnapshot}
                   cardPointerHandlers={cardPointerHandlers}
                   onDocumentActivate={onDocumentActivate}
-                  onTagDragEnter={handleTagDragEnterDoc}
-                  onTagDragOver={handleTagDragOverDoc}
-                  onTagDragLeave={handleTagDragLeaveDoc}
-                  onTagDrop={handleTagDropOnDoc}
-                  onDocTagPointerDown={handleDocTagPointerDown}
-                  onDocTagDragStart={handleDocTagDragStart}
-                  onDocTagDrag={handleDocTagDrag}
-                  onDocTagDragEnd={handleDocTagDragEnd}
+                  onTagDragEnter={tagInteractions.handleTagDragEnterDoc}
+                  onTagDragOver={tagInteractions.handleTagDragOverDoc}
+                  onTagDragLeave={tagInteractions.handleTagDragLeaveDoc}
+                  onTagDrop={tagInteractions.handleTagDropOnDoc}
+                  onDocTagPointerDown={tagInteractions.handleDocTagPointerDown}
+                  onDocTagDragStart={tagInteractions.handleDocTagDragStart}
+                  onDocTagDrag={tagInteractions.handleDocTagDrag}
+                  onDocTagDragEnd={tagInteractions.handleDocTagDragEnd}
                   pendingRemovalTag={pendingRemovalTag}
                   registerNode={registerNode}
                 />