diff --git a/services/web/frontend/js/features/file-tree/components/file-tree-create/modes/file-tree-create-new-doc.tsx b/services/web/frontend/js/features/file-tree/components/file-tree-create/modes/file-tree-create-new-doc.tsx
index c932540ba2..204f5af6da 100644
--- a/services/web/frontend/js/features/file-tree/components/file-tree-create/modes/file-tree-create-new-doc.tsx
+++ b/services/web/frontend/js/features/file-tree/components/file-tree-create/modes/file-tree-create-new-doc.tsx
@@ -30,7 +30,9 @@ export default function FileTreeCreateNewDoc() {
         extension: name.split('.').length > 1 ? name.split('.').pop() : '',
       })
 
-      openDoc(doc)
+      if (doc) {
+        openDoc(doc)
+      }
     },
     [finishCreatingDoc, name, openDoc]
   )
diff --git a/services/web/frontend/js/features/file-tree/contexts/file-tree-actionable.tsx b/services/web/frontend/js/features/file-tree/contexts/file-tree-actionable.tsx
index 3a3a4c92a8..b9688edc65 100644
--- a/services/web/frontend/js/features/file-tree/contexts/file-tree-actionable.tsx
+++ b/services/web/frontend/js/features/file-tree/contexts/file-tree-actionable.tsx
@@ -16,6 +16,9 @@ import {
   syncDelete,
   syncMove,
   syncCreateEntity,
+  NewDocEntity,
+  NewLinkedFileEntity,
+  NewEntity,
 } from '../util/sync-mutation'
 import { findInTree, findInTreeOrThrow } from '../util/find-in-tree'
 import { isNameUniqueInFolder } from '../util/is-name-unique-in-folder'
@@ -35,6 +38,7 @@ import { Folder } from '../../../../../types/folder'
 import { useReferencesContext } from '@/features/ide-react/context/references-context'
 import { usePermissionsContext } from '@/features/ide-react/context/permissions-context'
 import { FileTreeEntity } from '@ol-types/file-tree-entity'
+import { Doc } from '@ol-types/doc'
 
 type DroppedFile = File & {
   relativePath?: string
@@ -73,8 +77,12 @@ const FileTreeActionableContext = createContext<
       finishCreatingFolder: any
       startCreatingDocOrFile: any
       startUploadingDocOrFile: any
-      finishCreatingDoc: any
-      finishCreatingLinkedFile: any
+      finishCreatingDoc: (
+        entity: Omit<NewDocEntity, 'endpoint'>
+      ) => Promise<Doc | undefined>
+      finishCreatingLinkedFile: (
+        entity: Omit<NewLinkedFileEntity, 'endpoint'>
+      ) => Promise<{ new_file_id: string } | undefined>
       cancel: () => void
       droppedFiles: { files: File[]; targetFolderId: string } | null
       setDroppedFiles: (value: DroppedFiles | null) => void
@@ -403,7 +411,7 @@ export const FileTreeActionableProvider: FC<React.PropsWithChildren> = ({
   }, [fileTreeData, selectedEntityIds])
 
   const finishCreatingEntity = useCallback(
-    (entity: any) => {
+    (entity: NewEntity) => {
       const error = validateCreate(fileTreeData, parentFolderId, entity)
       if (error) {
         return Promise.reject(error)
@@ -415,7 +423,7 @@ export const FileTreeActionableProvider: FC<React.PropsWithChildren> = ({
   )
 
   const finishCreatingFolder = useCallback(
-    (name: any) => {
+    (name: string) => {
       dispatch({ type: ACTION_TYPES.CREATING_FOLDER })
       return finishCreatingEntity({ endpoint: 'folder', name })
         .then(() => {
@@ -440,8 +448,16 @@ export const FileTreeActionableProvider: FC<React.PropsWithChildren> = ({
     startCreatingFile('upload')
   }, [startCreatingFile])
 
+  type FinishCreatingDocOrFileReturn<T> = T extends NewDocEntity
+    ? Promise<Doc | undefined>
+    : T extends NewLinkedFileEntity
+      ? Promise<{ new_file_id: string } | undefined>
+      : never
+
   const finishCreatingDocOrFile = useCallback(
-    (entity: any) => {
+    <T extends NewDocEntity | NewLinkedFileEntity>(
+      entity: T
+    ): FinishCreatingDocOrFileReturn<T> => {
       dispatch({ type: ACTION_TYPES.CREATING_FILE })
 
       return finishCreatingEntity(entity)
@@ -451,23 +467,21 @@ export const FileTreeActionableProvider: FC<React.PropsWithChildren> = ({
         })
         .catch(error => {
           dispatch({ type: ACTION_TYPES.ERROR, error })
-        })
+        }) as FinishCreatingDocOrFileReturn<T>
     },
     [finishCreatingEntity]
   )
 
   const finishCreatingDoc = useCallback(
-    (entity: any) => {
-      entity.endpoint = 'doc'
-      return finishCreatingDocOrFile(entity)
+    (entity: Omit<NewDocEntity, 'endpoint'>) => {
+      return finishCreatingDocOrFile({ ...entity, endpoint: 'doc' })
     },
     [finishCreatingDocOrFile]
   )
 
   const finishCreatingLinkedFile = useCallback(
-    (entity: any) => {
-      entity.endpoint = 'linked_file'
-      return finishCreatingDocOrFile(entity)
+    (entity: Omit<NewLinkedFileEntity, 'endpoint'>) => {
+      return finishCreatingDocOrFile({ ...entity, endpoint: 'linked_file' })
     },
     [finishCreatingDocOrFile]
   )
diff --git a/services/web/frontend/js/features/file-tree/util/sync-mutation.ts b/services/web/frontend/js/features/file-tree/util/sync-mutation.ts
index 343a663b96..1c10ef4961 100644
--- a/services/web/frontend/js/features/file-tree/util/sync-mutation.ts
+++ b/services/web/frontend/js/features/file-tree/util/sync-mutation.ts
@@ -1,4 +1,6 @@
 import { postJSON, deleteJSON } from '../../../infrastructure/fetch-json'
+import { Folder } from '@ol-types/folder'
+import { Doc } from '@ol-types/doc'
 
 export function syncRename(
   projectId: string,
@@ -42,21 +44,45 @@ export function syncMove(
   )
 }
 
-export function syncCreateEntity(
+export type NewDocEntity = {
+  endpoint: 'doc'
+  name: string
+}
+
+export type NewFolderEntity = {
+  endpoint: 'folder'
+  name: string
+}
+
+export type NewLinkedFileEntity = {
+  endpoint: 'linked_file'
+  name: string
+  provider: string
+  data: Record<string, any>
+}
+
+export type NewEntity = NewDocEntity | NewFolderEntity | NewLinkedFileEntity
+
+type SyncCreateEntityReturn<T> = T extends NewDocEntity
+  ? Promise<Doc>
+  : T extends NewFolderEntity
+    ? Promise<Folder>
+    : T extends NewLinkedFileEntity
+      ? Promise<{ new_file_id: string }>
+      : never
+
+export function syncCreateEntity<T extends NewEntity>(
   projectId: string,
   parentFolderId: string,
-  newEntityData: {
-    endpoint: 'doc' | 'folder' | 'linked-file'
-    [key: string]: unknown
-  }
-) {
+  newEntityData: T
+): SyncCreateEntityReturn<T> {
   const { endpoint, ...newEntity } = newEntityData
   return postJSON(`/project/${projectId}/${endpoint}`, {
     body: {
       parent_folder_id: parentFolderId,
       ...newEntity,
     },
-  })
+  }) as SyncCreateEntityReturn<T>
 }
 
 function getEntityPathName(entityType: string) {