diff --git a/frontend/src/components/editor/Editor.tsx b/frontend/src/components/editor/Editor.tsx
index 7b9f33e6..4008f44b 100644
--- a/frontend/src/components/editor/Editor.tsx
+++ b/frontend/src/components/editor/Editor.tsx
@@ -34,7 +34,7 @@ function Editor(props: EditorProps) {
 	const [element, setElement] = useState<HTMLElement>();
 	const editorStore = useSelector(selectEditor);
 	const configStore = useSelector(selectConfig);
-	const settingStore = useSelector(selectFeatureSetting);
+	const featureSettingStore = useSelector(selectFeatureSetting);
 	const workspaceStore = useSelector(selectWorkspace);
 	const { mutateAsync: createUploadUrl } = useCreateUploadUrlMutation();
 	const { mutateAsync: uploadFile } = useUploadFileMutation();
@@ -51,7 +51,7 @@ function Editor(props: EditorProps) {
 			!element ||
 			!editorStore.doc ||
 			!editorStore.client ||
-			typeof settingStore.fileUpload?.enable !== "boolean"
+			typeof featureSettingStore.fileUpload?.enable !== "boolean"
 		) {
 			return;
 		}
@@ -87,7 +87,7 @@ function Editor(props: EditorProps) {
 				}),
 				yorkieCodeMirror(editorStore.doc, editorStore.client),
 				intelligencePivot,
-				...(settingStore.fileUpload.enable
+				...(featureSettingStore.fileUpload.enable
 					? [imageUploader(handleUploadImage, editorStore.doc)]
 					: []),
 				urlHyperlinkInserter(editorStore.doc),
@@ -107,7 +107,7 @@ function Editor(props: EditorProps) {
 		configStore.codeKey,
 		themeMode,
 		workspaceStore.data,
-		settingStore.fileUpload?.enable,
+		featureSettingStore.fileUpload?.enable,
 		dispatch,
 		createUploadUrl,
 		uploadFile,
diff --git a/frontend/src/components/headers/DocumentHeader.tsx b/frontend/src/components/headers/DocumentHeader.tsx
index e6a4374f..aae5a4e4 100644
--- a/frontend/src/components/headers/DocumentHeader.tsx
+++ b/frontend/src/components/headers/DocumentHeader.tsx
@@ -1,9 +1,11 @@
 import ArrowBackIosNewIcon from "@mui/icons-material/ArrowBackIosNew";
 import EditIcon from "@mui/icons-material/Edit";
+import MoreVertIcon from "@mui/icons-material/MoreVert";
 import VerticalSplitIcon from "@mui/icons-material/VerticalSplit";
 import VisibilityIcon from "@mui/icons-material/Visibility";
 import {
 	AppBar,
+	Grid2 as Grid,
 	IconButton,
 	Paper,
 	Stack,
@@ -11,24 +13,22 @@ import {
 	ToggleButtonGroup,
 	Toolbar,
 	Tooltip,
-	Grid2 as Grid,
 	Typography,
 } from "@mui/material";
+import { useSnackbar } from "notistack";
 import { useEffect, useState } from "react";
 import { useDispatch, useSelector } from "react-redux";
 import { useNavigate } from "react-router-dom";
+import { useUpdateDocumentTitleMutation } from "../../hooks/api/workspaceDocument";
 import { useUserPresence } from "../../hooks/useUserPresence";
+import { selectDocument } from "../../store/documentSlice";
 import { EditorModeType, selectEditor, setMode } from "../../store/editorSlice";
 import { selectWorkspace } from "../../store/workspaceSlice";
 import { ShareRole } from "../../utils/share";
 import DownloadMenu from "../common/DownloadMenu";
 import ShareButton from "../common/ShareButton";
-import UserPresenceList from "./UserPresenceList";
-import { selectDocument } from "../../store/documentSlice";
-import { useUpdateDocumentTitleMutation } from "../../hooks/api/workspaceDocument";
-import { useSnackbar } from "notistack";
 import DocumentPopover from "../popovers/DocumentPopover";
-import MoreVertIcon from "@mui/icons-material/MoreVert";
+import UserPresenceList from "./UserPresenceList";
 
 function DocumentHeader() {
 	const dispatch = useDispatch();
@@ -43,7 +43,7 @@ function DocumentHeader() {
 	);
 	const isEditingDisabled = Boolean(editorState.shareRole);
 	const { enqueueSnackbar } = useSnackbar();
-	const [moreButtonanchorEl, setMoreButtonAnchorEl] = useState<HTMLButtonElement | null>(null);
+	const [moreButtonAnchorEl, setMoreButtonAnchorEl] = useState<HTMLButtonElement | null>(null);
 
 	useEffect(() => {
 		if (editorState.shareRole === ShareRole.READ) {
@@ -162,8 +162,8 @@ function DocumentHeader() {
 								<MoreVertIcon />
 							</IconButton>
 							<DocumentPopover
-								open={Boolean(moreButtonanchorEl)}
-								anchorEl={moreButtonanchorEl}
+								open={Boolean(moreButtonAnchorEl)}
+								anchorEl={moreButtonAnchorEl}
 								onClose={handleDocumentMenuClose}
 							/>
 						</Stack>
diff --git a/frontend/src/store/workspaceSlice.ts b/frontend/src/store/workspaceSlice.ts
index e9b497b7..0e2beabc 100644
--- a/frontend/src/store/workspaceSlice.ts
+++ b/frontend/src/store/workspaceSlice.ts
@@ -34,6 +34,14 @@ export const selectWorkspace = (state: RootState) => state.workspace;
 
 /**
  * Manages workspace-related state.
+ *
+ *  * This slice handles:
+ * - `data`: The currently active workspace, including:
+ *   - `id`: Unique identifier for the workspace.
+ *   - `title`: The name of the workspace.
+ *   - `slug`: A URL-friendly identifier for the workspace.
+ *   - `updatedAt`: The timestamp of the last update to the workspace.
+ *   - `createdAt`: The timestamp when the workspace was created.
  */
 const reducer = workspaceSlice.reducer;