diff --git a/web/app/components/workflow/collaboration/skills/skill-collaboration-manager.ts b/web/app/components/workflow/collaboration/skills/skill-collaboration-manager.ts
index 4c8c78f801..6cd1a2476c 100644
--- a/web/app/components/workflow/collaboration/skills/skill-collaboration-manager.ts
+++ b/web/app/components/workflow/collaboration/skills/skill-collaboration-manager.ts
@@ -55,6 +55,8 @@ class SkillCollaborationManager {
   private cursorEmitter = new EventEmitter()
   private fileEmitter = new EventEmitter()
   private fileSavedGlobalKey = 'skill_file_saved:all'
+  private treeEmitter = new EventEmitter()
+  private treeUpdateKey = 'skill_tree_update:all'
 
   private handleSkillUpdate = (payload: SkillUpdatePayload) => {
     if (!payload || !payload.file_id || !payload.update)
@@ -97,6 +99,11 @@ class SkillCollaborationManager {
       return
     }
 
+    if (update.type === 'skill_tree_update') {
+      this.treeEmitter.emit(this.treeUpdateKey, update.data)
+      return
+    }
+
     if (update.type === 'skill_cursor') {
       const data = update.data as SkillCursorPayload | undefined
       const fileId = data?.file_id
@@ -157,6 +164,7 @@ class SkillCollaborationManager {
       this.cursorByFile.clear()
       this.cursorEmitter.removeAllListeners()
       this.fileEmitter.removeAllListeners()
+      this.treeEmitter.removeAllListeners()
     }
 
     this.appId = appId
@@ -278,6 +286,12 @@ class SkillCollaborationManager {
     return this.fileEmitter.on(this.fileSavedGlobalKey, callback)
   }
 
+  onTreeUpdate(appId: string, callback: (payload: Record<string, unknown>) => void): () => void {
+    if (appId)
+      this.ensureSocket(appId)
+    return this.treeEmitter.on(this.treeUpdateKey, callback)
+  }
+
   isLeader(fileId: string): boolean {
     return this.leaderByFile.get(fileId) || false
   }
@@ -319,6 +333,21 @@ class SkillCollaborationManager {
     })
   }
 
+  emitTreeUpdate(appId: string, payload: Record<string, unknown> = {}): void {
+    if (!appId)
+      return
+
+    const socket = this.ensureSocket(appId)
+    if (!socket || !socket.connected)
+      return
+
+    emitWithAuthGuard(socket, 'collaboration_event', {
+      type: 'skill_tree_update',
+      data: payload,
+      timestamp: Date.now(),
+    })
+  }
+
   setActiveFile(appId: string, fileId: string, active: boolean): void {
     if (!appId || !fileId)
       return
diff --git a/web/app/components/workflow/collaboration/types/collaboration.ts b/web/app/components/workflow/collaboration/types/collaboration.ts
index 3f31db7e3f..c8a85f469b 100644
--- a/web/app/components/workflow/collaboration/types/collaboration.ts
+++ b/web/app/components/workflow/collaboration/types/collaboration.ts
@@ -65,6 +65,7 @@ export type CollaborationEventType
     | 'graph_view_active'
     | 'skill_file_active'
     | 'skill_file_saved'
+    | 'skill_tree_update'
     | 'skill_cursor'
     | 'skill_sync_request'
     | 'skill_resync_request'
diff --git a/web/app/components/workflow/skill/file-tree/index.tsx b/web/app/components/workflow/skill/file-tree/index.tsx
index f2f8325468..0bb3dcc53c 100644
--- a/web/app/components/workflow/skill/file-tree/index.tsx
+++ b/web/app/components/workflow/skill/file-tree/index.tsx
@@ -24,6 +24,7 @@ import { usePasteOperation } from '../hooks/use-paste-operation'
 import { useRootFileDrop } from '../hooks/use-root-file-drop'
 import { useSkillAssetTreeData } from '../hooks/use-skill-asset-tree'
 import { useSkillShortcuts } from '../hooks/use-skill-shortcuts'
+import { useSkillTreeCollaboration } from '../hooks/use-skill-tree-collaboration'
 import { useSyncTreeWithActiveTab } from '../hooks/use-sync-tree-with-active-tab'
 import { isDescendantOf } from '../utils/tree-utils'
 import DragActionTooltip from './drag-action-tooltip'
@@ -107,6 +108,8 @@ const FileTree = ({ className }: FileTreeProps) => {
 
   const treeChildren = treeData?.children ?? emptyTreeNodes
 
+  useSkillTreeCollaboration()
+
   const {
     handleRootDragEnter,
     handleRootDragLeave,
diff --git a/web/app/components/workflow/skill/hooks/use-create-operations.ts b/web/app/components/workflow/skill/hooks/use-create-operations.ts
index 4073545347..81fe5af92f 100644
--- a/web/app/components/workflow/skill/hooks/use-create-operations.ts
+++ b/web/app/components/workflow/skill/hooks/use-create-operations.ts
@@ -10,6 +10,7 @@ import {
   useUploadFileWithPresignedUrl,
 } from '@/service/use-app-asset'
 import { prepareSkillUploadFile } from '../utils/skill-upload-utils'
+import { useSkillTreeUpdateEmitter } from './use-skill-tree-collaboration'
 
 type UseCreateOperationsOptions = {
   parentId: string | null
@@ -34,6 +35,7 @@ export function useCreateOperations({
   const createFolder = useCreateAppAssetFolder()
   const uploadFile = useUploadFileWithPresignedUrl()
   const batchUpload = useBatchUpload()
+  const emitTreeUpdate = useSkillTreeUpdateEmitter()
 
   const handleNewFile = useCallback(() => {
     storeApi.getState().startCreateNode('file', parentId)
@@ -80,10 +82,12 @@ export function useCreateOperations({
       storeApi.getState().setUploadStatus('partial_error')
     }
     finally {
+      if (progress.uploaded > 0)
+        emitTreeUpdate()
       e.target.value = ''
       onClose()
     }
-  }, [appId, uploadFile, onClose, parentId, storeApi])
+  }, [appId, uploadFile, onClose, parentId, storeApi, emitTreeUpdate])
 
   const handleFolderChange = useCallback(async (e: React.ChangeEvent<HTMLInputElement>) => {
     const files = Array.from(e.target.files || [])
@@ -152,6 +156,7 @@ export function useCreateOperations({
 
       storeApi.getState().setUploadStatus('success')
       storeApi.getState().setUploadProgress({ uploaded: files.length, total: files.length, failed: 0 })
+      emitTreeUpdate()
     }
     catch {
       storeApi.getState().setUploadStatus('partial_error')
@@ -160,7 +165,7 @@ export function useCreateOperations({
       e.target.value = ''
       onClose()
     }
-  }, [appId, batchUpload, onClose, parentId, storeApi])
+  }, [appId, batchUpload, onClose, parentId, storeApi, emitTreeUpdate])
 
   return {
     fileInputRef,
diff --git a/web/app/components/workflow/skill/hooks/use-file-drop.ts b/web/app/components/workflow/skill/hooks/use-file-drop.ts
index 5c6c0f101c..5debadb27d 100644
--- a/web/app/components/workflow/skill/hooks/use-file-drop.ts
+++ b/web/app/components/workflow/skill/hooks/use-file-drop.ts
@@ -11,6 +11,7 @@ import { useWorkflowStore } from '@/app/components/workflow/store'
 import { useUploadFileWithPresignedUrl } from '@/service/use-app-asset'
 import { ROOT_ID } from '../constants'
 import { prepareSkillUploadFile } from '../utils/skill-upload-utils'
+import { useSkillTreeUpdateEmitter } from './use-skill-tree-collaboration'
 
 type FileDropTarget = {
   folderId: string | null
@@ -23,6 +24,7 @@ export function useFileDrop() {
   const appId = appDetail?.id || ''
   const storeApi = useWorkflowStore()
   const uploadFile = useUploadFileWithPresignedUrl()
+  const emitTreeUpdate = useSkillTreeUpdateEmitter()
 
   const handleDragOver = useCallback((e: React.DragEvent, target: FileDropTarget) => {
     e.preventDefault()
@@ -90,6 +92,7 @@ export function useFileDrop() {
         ),
       )
 
+      emitTreeUpdate()
       Toast.notify({
         type: 'success',
         message: t('skillSidebar.menu.filesUploaded', { count: files.length }),
@@ -101,7 +104,7 @@ export function useFileDrop() {
         message: t('skillSidebar.menu.uploadError'),
       })
     }
-  }, [appId, uploadFile, t, storeApi])
+  }, [appId, uploadFile, t, storeApi, emitTreeUpdate])
 
   return {
     handleDragOver,
diff --git a/web/app/components/workflow/skill/hooks/use-inline-create-node.ts b/web/app/components/workflow/skill/hooks/use-inline-create-node.ts
index ec63c6d31d..af78fa1631 100644
--- a/web/app/components/workflow/skill/hooks/use-inline-create-node.ts
+++ b/web/app/components/workflow/skill/hooks/use-inline-create-node.ts
@@ -14,6 +14,7 @@ import {
 } from '@/service/use-app-asset'
 import { getFileExtension, isTextLikeFile } from '../utils/file-utils'
 import { createDraftTreeNode, insertDraftTreeNode } from '../utils/tree-utils'
+import { useSkillTreeUpdateEmitter } from './use-skill-tree-collaboration'
 
 type UseInlineCreateNodeOptions = {
   treeRef: React.RefObject<TreeApi<TreeNodeData> | null>
@@ -38,6 +39,7 @@ export function useInlineCreateNode({
   const uploadFile = useUploadFileWithPresignedUrl()
   const createFolder = useCreateAppAssetFolder()
   const renameNode = useRenameAppAssetNode()
+  const emitTreeUpdate = useSkillTreeUpdateEmitter()
 
   const pendingCreateId = pendingCreateNode?.id ?? null
   const pendingCreateType = pendingCreateNode?.nodeType ?? null
@@ -71,6 +73,7 @@ export function useInlineCreateNode({
               parent_id: pendingCreateParentId,
             },
           })
+          emitTreeUpdate()
           Toast.notify({
             type: 'success',
             message: t('skillSidebar.menu.folderCreated'),
@@ -84,6 +87,7 @@ export function useInlineCreateNode({
             file,
             parentId: pendingCreateParentId,
           })
+          emitTreeUpdate()
           const extension = getFileExtension(trimmedName, createdFile.extension)
           if (isTextLikeFile(extension))
             storeApi.getState().openTab(createdFile.id, { pinned: true })
@@ -110,6 +114,7 @@ export function useInlineCreateNode({
       nodeId: id,
       payload: { name },
     }).then(() => {
+      emitTreeUpdate()
       Toast.notify({
         type: 'success',
         message: t('skillSidebar.menu.renamed'),
@@ -130,6 +135,7 @@ export function useInlineCreateNode({
     renameNode,
     storeApi,
     t,
+    emitTreeUpdate,
   ])
 
   const searchMatch = useCallback(
diff --git a/web/app/components/workflow/skill/hooks/use-modify-operations.ts b/web/app/components/workflow/skill/hooks/use-modify-operations.ts
index 4d153e2312..860920269a 100644
--- a/web/app/components/workflow/skill/hooks/use-modify-operations.ts
+++ b/web/app/components/workflow/skill/hooks/use-modify-operations.ts
@@ -12,6 +12,7 @@ import { useTranslation } from 'react-i18next'
 import Toast from '@/app/components/base/toast'
 import { useDeleteAppAssetNode } from '@/service/use-app-asset'
 import { getAllDescendantFileIds } from '../utils/tree-utils'
+import { useSkillTreeUpdateEmitter } from './use-skill-tree-collaboration'
 
 type UseModifyOperationsOptions = {
   nodeId: string
@@ -35,6 +36,7 @@ export function useModifyOperations({
   const { t } = useTranslation('workflow')
   const [showDeleteConfirm, setShowDeleteConfirm] = useState(false)
   const deleteNode = useDeleteAppAssetNode()
+  const emitTreeUpdate = useSkillTreeUpdateEmitter()
 
   const handleRename = useCallback(() => {
     if (treeRef?.current) {
@@ -59,6 +61,7 @@ export function useModifyOperations({
         : []
 
       await deleteNode.mutateAsync({ appId, nodeId })
+      emitTreeUpdate()
 
       descendantFileIds.forEach((fileId) => {
         storeApi.getState().closeTab(fileId)
@@ -90,7 +93,7 @@ export function useModifyOperations({
       setShowDeleteConfirm(false)
       onClose()
     }
-  }, [appId, nodeId, node?.data?.node_type, deleteNode, storeApi, treeData?.children, onClose, t])
+  }, [appId, nodeId, node?.data?.node_type, deleteNode, storeApi, treeData?.children, onClose, t, emitTreeUpdate])
 
   const handleDeleteCancel = useCallback(() => {
     setShowDeleteConfirm(false)
diff --git a/web/app/components/workflow/skill/hooks/use-node-move.ts b/web/app/components/workflow/skill/hooks/use-node-move.ts
index ec698e5757..6856a8658c 100644
--- a/web/app/components/workflow/skill/hooks/use-node-move.ts
+++ b/web/app/components/workflow/skill/hooks/use-node-move.ts
@@ -9,12 +9,14 @@ import { useStore as useAppStore } from '@/app/components/app/store'
 import Toast from '@/app/components/base/toast'
 import { useMoveAppAssetNode } from '@/service/use-app-asset'
 import { toApiParentId } from '../utils/tree-utils'
+import { useSkillTreeUpdateEmitter } from './use-skill-tree-collaboration'
 
 export function useNodeMove() {
   const { t } = useTranslation('workflow')
   const appDetail = useAppStore(s => s.appDetail)
   const appId = appDetail?.id || ''
   const moveNode = useMoveAppAssetNode()
+  const emitTreeUpdate = useSkillTreeUpdateEmitter()
 
   // Execute move API call - validation is handled by react-arborist's disableDrop callback
   const executeMoveNode = useCallback(async (nodeId: string, targetFolderId: string | null) => {
@@ -25,6 +27,7 @@ export function useNodeMove() {
         payload: { parent_id: toApiParentId(targetFolderId) },
       })
 
+      emitTreeUpdate()
       Toast.notify({
         type: 'success',
         message: t('skillSidebar.menu.moved'),
@@ -36,7 +39,7 @@ export function useNodeMove() {
         message: t('skillSidebar.menu.moveError'),
       })
     }
-  }, [appId, moveNode, t])
+  }, [appId, moveNode, t, emitTreeUpdate])
 
   return {
     executeMoveNode,
diff --git a/web/app/components/workflow/skill/hooks/use-node-reorder.ts b/web/app/components/workflow/skill/hooks/use-node-reorder.ts
index d2a155d454..c256ba2903 100644
--- a/web/app/components/workflow/skill/hooks/use-node-reorder.ts
+++ b/web/app/components/workflow/skill/hooks/use-node-reorder.ts
@@ -7,12 +7,14 @@ import { useTranslation } from 'react-i18next'
 import { useStore as useAppStore } from '@/app/components/app/store'
 import Toast from '@/app/components/base/toast'
 import { useReorderAppAssetNode } from '@/service/use-app-asset'
+import { useSkillTreeUpdateEmitter } from './use-skill-tree-collaboration'
 
 export function useNodeReorder() {
   const { t } = useTranslation('workflow')
   const appDetail = useAppStore(s => s.appDetail)
   const appId = appDetail?.id || ''
   const reorderNode = useReorderAppAssetNode()
+  const emitTreeUpdate = useSkillTreeUpdateEmitter()
 
   const executeReorderNode = useCallback(async (nodeId: string, afterNodeId: string | null) => {
     try {
@@ -22,6 +24,7 @@ export function useNodeReorder() {
         payload: { after_node_id: afterNodeId },
       })
 
+      emitTreeUpdate()
       Toast.notify({
         type: 'success',
         message: t('skillSidebar.menu.moved'),
@@ -33,7 +36,7 @@ export function useNodeReorder() {
         message: t('skillSidebar.menu.moveError'),
       })
     }
-  }, [appId, reorderNode, t])
+  }, [appId, reorderNode, t, emitTreeUpdate])
 
   return {
     executeReorderNode,
diff --git a/web/app/components/workflow/skill/hooks/use-paste-operation.ts b/web/app/components/workflow/skill/hooks/use-paste-operation.ts
index 74b8f23f27..1e4fda190d 100644
--- a/web/app/components/workflow/skill/hooks/use-paste-operation.ts
+++ b/web/app/components/workflow/skill/hooks/use-paste-operation.ts
@@ -11,6 +11,7 @@ import Toast from '@/app/components/base/toast'
 import { useWorkflowStore } from '@/app/components/workflow/store'
 import { useMoveAppAssetNode } from '@/service/use-app-asset'
 import { findNodeById, getTargetFolderIdFromSelection, toApiParentId } from '../utils/tree-utils'
+import { useSkillTreeUpdateEmitter } from './use-skill-tree-collaboration'
 
 type UsePasteOperationOptions = {
   treeRef: RefObject<TreeApi<TreeNodeData> | null>
@@ -33,6 +34,7 @@ export function usePasteOperation({
   const appDetail = useAppStore(s => s.appDetail)
   const appId = appDetail?.id || ''
   const moveNode = useMoveAppAssetNode()
+  const emitTreeUpdate = useSkillTreeUpdateEmitter()
   const isPastingRef = useRef(false)
 
   const handlePaste = useCallback(async () => {
@@ -84,6 +86,7 @@ export function usePasteOperation({
         )
 
         storeApi.getState().clearClipboard()
+        emitTreeUpdate()
 
         Toast.notify({
           type: 'success',
@@ -100,7 +103,7 @@ export function usePasteOperation({
         isPastingRef.current = false
       }
     }
-  }, [appId, moveNode, storeApi, t, treeData?.children, treeRef])
+  }, [appId, moveNode, storeApi, t, treeData?.children, treeRef, emitTreeUpdate])
 
   useEffect(() => {
     if (!enabled)
diff --git a/web/app/components/workflow/skill/hooks/use-skill-tree-collaboration.ts b/web/app/components/workflow/skill/hooks/use-skill-tree-collaboration.ts
new file mode 100644
index 0000000000..4f2ab1e096
--- /dev/null
+++ b/web/app/components/workflow/skill/hooks/use-skill-tree-collaboration.ts
@@ -0,0 +1,38 @@
+'use client'
+
+import { useQueryClient } from '@tanstack/react-query'
+import { useCallback, useEffect } from 'react'
+import { useStore as useAppStore } from '@/app/components/app/store'
+import { skillCollaborationManager } from '@/app/components/workflow/collaboration/skills/skill-collaboration-manager'
+import { useGlobalPublicStore } from '@/context/global-public-context'
+import { consoleQuery } from '@/service/client'
+
+export const useSkillTreeUpdateEmitter = () => {
+  const appDetail = useAppStore(s => s.appDetail)
+  const appId = appDetail?.id || ''
+  const isCollaborationEnabled = useGlobalPublicStore(s => s.systemFeatures.enable_collaboration_mode)
+
+  return useCallback((payload: Record<string, unknown> = {}) => {
+    if (!appId || !isCollaborationEnabled)
+      return
+    skillCollaborationManager.emitTreeUpdate(appId, payload)
+  }, [appId, isCollaborationEnabled])
+}
+
+export const useSkillTreeCollaboration = () => {
+  const appDetail = useAppStore(s => s.appDetail)
+  const appId = appDetail?.id || ''
+  const isCollaborationEnabled = useGlobalPublicStore(s => s.systemFeatures.enable_collaboration_mode)
+  const queryClient = useQueryClient()
+
+  useEffect(() => {
+    if (!appId || !isCollaborationEnabled)
+      return
+
+    return skillCollaborationManager.onTreeUpdate(appId, () => {
+      queryClient.invalidateQueries({
+        queryKey: consoleQuery.appAsset.tree.queryKey({ input: { params: { appId } } }),
+      })
+    })
+  }, [appId, isCollaborationEnabled, queryClient])
+}