diff --git a/src/components/App.vue b/src/components/App.vue
index d14de67080..db73ce923c 100644
--- a/src/components/App.vue
+++ b/src/components/App.vue
@@ -92,13 +92,13 @@ onMounted(async () => {
   const queryString = window.location.search;
   const urlParams = new URLSearchParams(queryString);
 
-  await store.dispatch("INIT_VUEX");
+  await store.actions.INIT_VUEX();
 
   // プロジェクトファイルのパスを取得
   const projectFilePath = urlParams.get("projectFilePath");
 
   // どちらのエディタを開くか設定
-  await store.dispatch("SET_OPENED_EDITOR", { editor: "talk" });
+  await store.actions.SET_OPENED_EDITOR({ editor: "talk" });
 
   // ショートカットキーの設定を登録
   const hotkeySettings = store.state.hotkeySettings;
@@ -107,11 +107,11 @@ onMounted(async () => {
   // エンジンの初期化開始
 
   // エンジン情報取得
-  await store.dispatch("GET_ENGINE_INFOS");
+  await store.actions.GET_ENGINE_INFOS();
 
   // URLパラメータに従ってマルチエンジンをオフにする
   const isMultiEngineOffMode = urlParams.get("isMultiEngineOffMode") === "true";
-  void store.dispatch("SET_IS_MULTI_ENGINE_OFF_MODE", isMultiEngineOffMode);
+  void store.actions.SET_IS_MULTI_ENGINE_OFF_MODE(isMultiEngineOffMode);
 
   // マルチエンジンオフモードのときはデフォルトエンジンだけにする
   let engineIds: EngineId[];
@@ -126,18 +126,18 @@ onMounted(async () => {
   } else {
     engineIds = store.state.engineIds;
   }
-  await store.dispatch("LOAD_USER_CHARACTER_ORDER");
-  await store.dispatch("POST_ENGINE_START", {
+  await store.actions.LOAD_USER_CHARACTER_ORDER();
+  await store.actions.POST_ENGINE_START({
     engineIds,
   });
 
   // 辞書を同期
-  await store.dispatch("SYNC_ALL_USER_DICT");
+  await store.actions.SYNC_ALL_USER_DICT();
 
   isEnginesReady.value = true;
 
   // エンジン起動後にダイアログを開く
-  void store.dispatch("SET_DIALOG_OPEN", {
+  void store.actions.SET_DIALOG_OPEN({
     isAcceptRetrieveTelemetryDialogOpen:
       store.state.acceptRetrieveTelemetry === "Unconfirmed",
     isAcceptTermsDialogOpen:
@@ -147,7 +147,7 @@ onMounted(async () => {
 
   // プロジェクトファイルが指定されていればロード
   if (typeof projectFilePath === "string" && projectFilePath !== "") {
-    isProjectFileLoaded.value = await store.dispatch("LOAD_PROJECT_FILE", {
+    isProjectFileLoaded.value = await store.actions.LOAD_PROJECT_FILE({
       filePath: projectFilePath,
     });
   } else {
diff --git a/src/components/Dialog/Dialog.ts b/src/components/Dialog/Dialog.ts
index 1883ee1f8d..e3a7702edc 100644
--- a/src/components/Dialog/Dialog.ts
+++ b/src/components/Dialog/Dialog.ts
@@ -7,8 +7,8 @@ import {
   SaveResult,
   ErrorTypeForSaveAllResultDialog,
 } from "@/store/type";
-import { Dispatch } from "@/store/vuex";
-import { withProgress } from "@/store/ui";
+import { DotNotationDispatch } from "@/store/vuex";
+import { withProgressDotNotation as withProgress } from "@/store/ui";
 
 type MediaType = "audio" | "text";
 
@@ -143,21 +143,21 @@ const setCommonDialogCallback = (
 
 export async function generateAndSaveOneAudioWithDialog({
   audioKey,
-  dispatch,
+  actions,
   filePath,
   disableNotifyOnGenerate,
 }: {
   audioKey: AudioKey;
-  dispatch: Dispatch<AllActions>;
+  actions: DotNotationDispatch<AllActions>;
   filePath?: string;
   disableNotifyOnGenerate: boolean;
 }): Promise<void> {
   const result: SaveResultObject = await withProgress(
-    dispatch("GENERATE_AND_SAVE_AUDIO", {
+    actions.GENERATE_AND_SAVE_AUDIO({
       audioKey,
       filePath,
     }),
-    dispatch,
+    actions,
   );
 
   if (result.result === "CANCELED") return;
@@ -167,35 +167,35 @@ export async function generateAndSaveOneAudioWithDialog({
     // 書き出し成功時に通知をする
     showWriteSuccessNotify({
       mediaType: "audio",
-      dispatch,
+      actions,
     });
   } else {
-    showWriteErrorDialog({ mediaType: "audio", result, dispatch });
+    showWriteErrorDialog({ mediaType: "audio", result, actions });
   }
 }
 
 export async function multiGenerateAndSaveAudioWithDialog({
   audioKeys,
-  dispatch,
+  actions,
   dirPath,
   disableNotifyOnGenerate,
 }: {
   audioKeys: AudioKey[];
-  dispatch: Dispatch<AllActions>;
+  actions: DotNotationDispatch<AllActions>;
   dirPath?: string;
   disableNotifyOnGenerate: boolean;
 }): Promise<void> {
   const result = await withProgress(
-    dispatch("MULTI_GENERATE_AND_SAVE_AUDIO", {
+    actions.MULTI_GENERATE_AND_SAVE_AUDIO({
       audioKeys,
       dirPath,
       callback: (finishedCount) =>
-        dispatch("SET_PROGRESS_FROM_COUNT", {
+        actions.SET_PROGRESS_FROM_COUNT({
           finishedCount,
           totalCount: audioKeys.length,
         }),
     }),
-    dispatch,
+    actions,
   );
 
   if (result == undefined) return;
@@ -226,7 +226,7 @@ export async function multiGenerateAndSaveAudioWithDialog({
     // 書き出し成功時に通知をする
     showWriteSuccessNotify({
       mediaType: "audio",
-      dispatch,
+      actions,
     });
   }
 
@@ -243,21 +243,21 @@ export async function multiGenerateAndSaveAudioWithDialog({
 }
 
 export async function generateAndConnectAndSaveAudioWithDialog({
-  dispatch,
+  actions,
   filePath,
   disableNotifyOnGenerate,
 }: {
-  dispatch: Dispatch<AllActions>;
+  actions: DotNotationDispatch<AllActions>;
   filePath?: string;
   disableNotifyOnGenerate: boolean;
 }): Promise<void> {
   const result = await withProgress(
-    dispatch("GENERATE_AND_CONNECT_AND_SAVE_AUDIO", {
+    actions.GENERATE_AND_CONNECT_AND_SAVE_AUDIO({
       filePath,
       callback: (finishedCount, totalCount) =>
-        dispatch("SET_PROGRESS_FROM_COUNT", { finishedCount, totalCount }),
+        actions.SET_PROGRESS_FROM_COUNT({ finishedCount, totalCount }),
     }),
-    dispatch,
+    actions,
   );
 
   if (result == undefined || result.result === "CANCELED") return;
@@ -266,23 +266,23 @@ export async function generateAndConnectAndSaveAudioWithDialog({
     if (disableNotifyOnGenerate) return;
     showWriteSuccessNotify({
       mediaType: "audio",
-      dispatch,
+      actions,
     });
   } else {
-    showWriteErrorDialog({ mediaType: "audio", result, dispatch });
+    showWriteErrorDialog({ mediaType: "audio", result, actions });
   }
 }
 
 export async function connectAndExportTextWithDialog({
-  dispatch,
+  actions,
   filePath,
   disableNotifyOnGenerate,
 }: {
-  dispatch: Dispatch<AllActions>;
+  actions: DotNotationDispatch<AllActions>;
   filePath?: string;
   disableNotifyOnGenerate: boolean;
 }): Promise<void> {
-  const result = await dispatch("CONNECT_AND_EXPORT_TEXT", {
+  const result = await actions.CONNECT_AND_EXPORT_TEXT({
     filePath,
   });
 
@@ -292,26 +292,26 @@ export async function connectAndExportTextWithDialog({
     if (disableNotifyOnGenerate) return;
     showWriteSuccessNotify({
       mediaType: "text",
-      dispatch,
+      actions,
     });
   } else {
-    showWriteErrorDialog({ mediaType: "text", result, dispatch });
+    showWriteErrorDialog({ mediaType: "text", result, actions });
   }
 }
 
 // 書き出し成功時の通知を表示
 const showWriteSuccessNotify = ({
   mediaType,
-  dispatch,
+  actions,
 }: {
   mediaType: MediaType;
-  dispatch: Dispatch<AllActions>;
+  actions: DotNotationDispatch<AllActions>;
 }): void => {
   const mediaTypeNames: Record<MediaType, string> = {
     audio: "音声",
     text: "テキスト",
   };
-  void dispatch("SHOW_NOTIFY_AND_NOT_SHOW_AGAIN_BUTTON", {
+  void actions.SHOW_NOTIFY_AND_NOT_SHOW_AGAIN_BUTTON({
     message: `${mediaTypeNames[mediaType]}を書き出しました`,
     tipName: "notifyOnGenerate",
   });
@@ -321,15 +321,15 @@ const showWriteSuccessNotify = ({
 const showWriteErrorDialog = ({
   mediaType,
   result,
-  dispatch,
+  actions,
 }: {
   mediaType: MediaType;
   result: SaveResultObject;
-  dispatch: Dispatch<AllActions>;
+  actions: DotNotationDispatch<AllActions>;
 }) => {
   if (mediaType === "text") {
     // テキスト書き出し時のエラーを出力
-    void dispatch("SHOW_ALERT_DIALOG", {
+    void actions.SHOW_ALERT_DIALOG({
       title: "テキストの書き出しに失敗しました。",
       message:
         "書き込みエラーによって失敗しました。空き容量があることや、書き込み権限があることをご確認ください。",
@@ -345,7 +345,7 @@ const showWriteErrorDialog = ({
     };
 
     // 音声書き出し時のエラーを出力
-    void dispatch("SHOW_ALERT_DIALOG", {
+    void actions.SHOW_ALERT_DIALOG({
       title: "書き出しに失敗しました。",
       message: result.errorMessage ?? defaultErrorMessages[result.result] ?? "",
     });
@@ -356,9 +356,9 @@ const NOTIFY_TIMEOUT = 7000;
 
 export const showNotifyAndNotShowAgainButton = (
   {
-    dispatch,
+    actions,
   }: {
-    dispatch: Dispatch<AllActions>;
+    actions: DotNotationDispatch<AllActions>;
   },
   options: NotifyAndNotShowAgainButtonOption,
 ) => {
@@ -376,7 +376,7 @@ export const showNotifyAndNotShowAgainButton = (
         label: "今後このメッセージを表示しない",
         textColor: "toast-button-display" + suffix,
         handler: () => {
-          void dispatch("SET_CONFIRMED_TIP", {
+          void actions.SET_CONFIRMED_TIP({
             confirmedTip: {
               [options.tipName]: true,
             },
diff --git a/src/components/EngineStartupOverlay.vue b/src/components/EngineStartupOverlay.vue
index 3dd83c1ad6..a826ebf25d 100644
--- a/src/components/EngineStartupOverlay.vue
+++ b/src/components/EngineStartupOverlay.vue
@@ -91,7 +91,7 @@ watch(allEngineState, (newEngineState) => {
 });
 
 const reloadAppWithMultiEngineOffMode = () => {
-  void store.dispatch("CHECK_EDITED_AND_NOT_SAVE", {
+  void store.actions.CHECK_EDITED_AND_NOT_SAVE({
     closeOrReload: "reload",
     isMultiEngineOffMode: true,
   });
diff --git a/src/components/Talk/AccentPhrase.vue b/src/components/Talk/AccentPhrase.vue
index 92e2eaa772..070ba90d7f 100644
--- a/src/components/Talk/AccentPhrase.vue
+++ b/src/components/Talk/AccentPhrase.vue
@@ -245,7 +245,7 @@ const contextMenudata = ref<[MenuItemButton]>([
     type: "button",
     label: "削除",
     onClick: () => {
-      void store.dispatch("COMMAND_DELETE_ACCENT_PHRASE", {
+      void store.actions.COMMAND_DELETE_ACCENT_PHRASE({
         audioKey: props.audioKey,
         accentPhraseIndex: props.index,
       });
@@ -278,7 +278,7 @@ const handleChangePronounce = (newPronunciation: string) => {
       popUntilPause = true;
     }
   }
-  void store.dispatch("COMMAND_CHANGE_SINGLE_ACCENT_PHRASE", {
+  void store.actions.COMMAND_CHANGE_SINGLE_ACCENT_PHRASE({
     audioKey: props.audioKey,
     newPronunciation,
     accentPhraseIndex: props.index,
@@ -345,13 +345,13 @@ const getHoveredText = (mora: Mora, moraIndex: number) => {
 };
 
 const changeAccent = (accentPhraseIndex: number, accent: number) =>
-  store.dispatch("COMMAND_CHANGE_ACCENT", {
+  store.actions.COMMAND_CHANGE_ACCENT({
     audioKey: props.audioKey,
     accentPhraseIndex,
     accent,
   });
 const toggleAccentPhraseSplit = (isPause: boolean, moraIndex?: number) => {
-  void store.dispatch("COMMAND_CHANGE_ACCENT_PHRASE_SPLIT", {
+  void store.actions.COMMAND_CHANGE_ACCENT_PHRASE_SPLIT({
     audioKey: props.audioKey,
     accentPhraseIndex: props.index,
     ...(!isPause ? { isPause, moraIndex: moraIndex as number } : { isPause }),
@@ -376,7 +376,7 @@ const changeMoraData = (
     if (type == "pitch") {
       lastPitches.value[moraIndex] = data;
     }
-    return store.dispatch("COMMAND_SET_AUDIO_MORA_DATA", {
+    return store.actions.COMMAND_SET_AUDIO_MORA_DATA({
       audioKey: props.audioKey,
       accentPhraseIndex,
       moraIndex,
@@ -384,7 +384,7 @@ const changeMoraData = (
       type,
     });
   } else {
-    return store.dispatch("COMMAND_SET_AUDIO_MORA_DATA_ACCENT_PHRASE", {
+    return store.actions.COMMAND_SET_AUDIO_MORA_DATA_ACCENT_PHRASE({
       audioKey: props.audioKey,
       accentPhraseIndex,
       moraIndex,
diff --git a/src/components/Talk/AudioCell.vue b/src/components/Talk/AudioCell.vue
index 63d957739e..b3575367fc 100644
--- a/src/components/Talk/AudioCell.vue
+++ b/src/components/Talk/AudioCell.vue
@@ -181,8 +181,8 @@ const isMultiSelectEnabled = computed(
 );
 
 const selectAndSetActiveAudioKey = () => {
-  void store.dispatch("SET_ACTIVE_AUDIO_KEY", { audioKey: props.audioKey });
-  void store.dispatch("SET_SELECTED_AUDIO_KEYS", {
+  void store.actions.SET_ACTIVE_AUDIO_KEY({ audioKey: props.audioKey });
+  void store.actions.SET_SELECTED_AUDIO_KEYS({
     audioKeys: [props.audioKey],
   });
 };
@@ -248,8 +248,8 @@ const onClickWithModifierKey = (event: MouseEvent) => {
       newSelectedAudioKeys = [...currentSelectedAudioKeys, props.audioKey];
     }
   }
-  void store.dispatch("SET_ACTIVE_AUDIO_KEY", { audioKey: newActiveAudioKey });
-  void store.dispatch("SET_SELECTED_AUDIO_KEYS", {
+  void store.actions.SET_ACTIVE_AUDIO_KEY({ audioKey: newActiveAudioKey });
+  void store.actions.SET_SELECTED_AUDIO_KEYS({
     audioKeys: newSelectedAudioKeys,
   });
 };
@@ -273,7 +273,7 @@ const selectedVoice = computed<Voice | undefined>({
   },
   set(voice: Voice | undefined) {
     if (voice == undefined) return;
-    void store.dispatch("COMMAND_MULTI_CHANGE_VOICE", {
+    void store.actions.COMMAND_MULTI_CHANGE_VOICE({
       audioKeys: isMultiSelectEnabled.value
         ? store.getters.SELECTED_AUDIO_KEYS
         : [props.audioKey],
@@ -312,7 +312,7 @@ const pushAudioTextIfNeeded = async (event?: KeyboardEvent) => {
   if (event && event.isComposing) return;
   if (!willRemove.value && isChangeFlag.value && !willFocusOrBlur.value) {
     isChangeFlag.value = false;
-    await store.dispatch("COMMAND_CHANGE_AUDIO_TEXT", {
+    await store.actions.COMMAND_CHANGE_AUDIO_TEXT({
       audioKey: props.audioKey,
       text: audioTextBuffer.value,
     });
@@ -383,7 +383,7 @@ const putMultilineText = async (texts: string[]) => {
     await pushAudioTextIfNeeded();
   }
 
-  const audioKeys = await store.dispatch("COMMAND_PUT_TEXTS", {
+  const audioKeys = await store.actions.COMMAND_PUT_TEXTS({
     texts,
     voice: audioItem.value.voice,
     prevAudioKey,
@@ -422,7 +422,7 @@ const moveCell = (offset: number) => (e?: KeyboardEvent) => {
         audioKey: audioKeys.value[index],
         focusTarget: "root",
       });
-      void store.dispatch("SET_SELECTED_AUDIO_KEYS", {
+      void store.actions.SET_SELECTED_AUDIO_KEYS({
         audioKeys: [
           ...selectedAudioKeysBefore,
           props.audioKey,
@@ -491,7 +491,7 @@ const removeCell = async () => {
       });
     }
 
-    void store.dispatch("COMMAND_MULTI_REMOVE_AUDIO_ITEM", {
+    void store.actions.COMMAND_MULTI_REMOVE_AUDIO_ITEM({
       audioKeys: audioKeysToDelete,
     });
   }
@@ -513,7 +513,7 @@ const selectCharacterAt = (index: number) => {
     speakerId: speakerUuid,
     styleId: style.styleId,
   };
-  void store.dispatch("COMMAND_MULTI_CHANGE_VOICE", {
+  void store.actions.COMMAND_MULTI_CHANGE_VOICE({
     audioKeys: isMultiSelectEnabled.value
       ? store.getters.SELECTED_AUDIO_KEYS
       : [props.audioKey],
@@ -600,7 +600,7 @@ const contextMenudata = ref<
     onClick: async () => {
       contextMenu.value?.hide();
       isChangeFlag.value = false;
-      await store.dispatch("COMMAND_CHANGE_DISPLAY_TEXT", {
+      await store.actions.COMMAND_CHANGE_DISPLAY_TEXT({
         audioKey: props.audioKey,
         text: audioTextBuffer.value,
       });
diff --git a/src/components/Talk/AudioDetail.vue b/src/components/Talk/AudioDetail.vue
index 97d7823873..a32016174b 100644
--- a/src/components/Talk/AudioDetail.vue
+++ b/src/components/Talk/AudioDetail.vue
@@ -153,7 +153,7 @@ registerHotkeyWithCleanup({
       const audioKeys = store.state.experimentalSetting.enableMultiSelect
         ? store.getters.SELECTED_AUDIO_KEYS
         : [store.getters.ACTIVE_AUDIO_KEY];
-      void store.dispatch("COMMAND_MULTI_RESET_MORA_PITCH_AND_LENGTH", {
+      void store.actions.COMMAND_MULTI_RESET_MORA_PITCH_AND_LENGTH({
         audioKeys,
       });
     }
@@ -168,7 +168,7 @@ registerHotkeyWithCleanup({
       store.getters.ACTIVE_AUDIO_KEY &&
       store.getters.AUDIO_PLAY_START_POINT != undefined
     ) {
-      void store.dispatch("COMMAND_RESET_SELECTED_MORA_PITCH_AND_LENGTH", {
+      void store.actions.COMMAND_RESET_SELECTED_MORA_PITCH_AND_LENGTH({
         audioKey: store.getters.ACTIVE_AUDIO_KEY,
         accentPhraseIndex: store.getters.AUDIO_PLAY_START_POINT,
       });
@@ -211,7 +211,7 @@ const startPoint = computed({
     return store.getters.AUDIO_PLAY_START_POINT;
   },
   set: (startPoint) => {
-    void store.dispatch("SET_AUDIO_PLAY_START_POINT", { startPoint });
+    void store.actions.SET_AUDIO_PLAY_START_POINT({ startPoint });
   },
 });
 // アクティブ(再生されている状態)なアクセント句
@@ -243,12 +243,12 @@ watch(accentPhrases, async () => {
 // audio play
 const play = async () => {
   try {
-    await store.dispatch("PLAY_AUDIO", {
+    await store.actions.PLAY_AUDIO({
       audioKey: props.activeAudioKey,
     });
   } catch (e) {
     const msg = handlePossiblyNotMorphableError(e);
-    void store.dispatch("SHOW_ALERT_DIALOG", {
+    void store.actions.SHOW_ALERT_DIALOG({
       title: "再生に失敗しました",
       message: msg ?? "エンジンの再起動をお試しください。",
     });
@@ -256,7 +256,7 @@ const play = async () => {
 };
 
 const stop = () => {
-  void store.dispatch("STOP_AUDIO");
+  void store.actions.STOP_AUDIO();
 };
 
 const nowPlaying = computed(() => store.getters.NOW_PLAYING);
@@ -310,7 +310,7 @@ const scrollToActivePoint = () => {
 let requestId: number | undefined;
 watch(nowPlaying, async (newState) => {
   if (newState) {
-    const accentPhraseOffsets = await store.dispatch("GET_AUDIO_PLAY_OFFSETS", {
+    const accentPhraseOffsets = await store.actions.GET_AUDIO_PLAY_OFFSETS({
       audioKey: props.activeAudioKey,
     });
     // 現在再生されているaudio elementの再生時刻を描画毎に取得(監視)し、
diff --git a/src/components/Talk/TalkEditor.vue b/src/components/Talk/TalkEditor.vue
index 6b068c99c7..b31cf1bf71 100644
--- a/src/components/Talk/TalkEditor.vue
+++ b/src/components/Talk/TalkEditor.vue
@@ -163,7 +163,7 @@ registerHotkeyWithCleanup({
   name: "音声書き出し",
   callback: () => {
     if (!uiLocked.value) {
-      void store.dispatch("SHOW_GENERATE_AND_SAVE_ALL_AUDIO_DIALOG");
+      void store.actions.SHOW_GENERATE_AND_SAVE_ALL_AUDIO_DIALOG();
     }
   },
 });
@@ -172,7 +172,7 @@ registerHotkeyWithCleanup({
   name: "選択音声を書き出し",
   callback: () => {
     if (!uiLocked.value) {
-      void store.dispatch("SHOW_GENERATE_AND_SAVE_SELECTED_AUDIO_DIALOG");
+      void store.actions.SHOW_GENERATE_AND_SAVE_SELECTED_AUDIO_DIALOG();
     }
   },
 });
@@ -181,7 +181,7 @@ registerHotkeyWithCleanup({
   name: "音声を繋げて書き出し",
   callback: () => {
     if (!uiLocked.value) {
-      void store.dispatch("SHOW_GENERATE_AND_CONNECT_ALL_AUDIO_DIALOG");
+      void store.actions.SHOW_GENERATE_AND_CONNECT_ALL_AUDIO_DIALOG();
     }
   },
 });
@@ -190,7 +190,7 @@ registerHotkeyWithCleanup({
   name: "テキストを読み込む",
   callback: () => {
     if (!uiLocked.value) {
-      void store.dispatch("SHOW_CONNECT_AND_EXPORT_TEXT_DIALOG");
+      void store.actions.SHOW_CONNECT_AND_EXPORT_TEXT_DIALOG();
     }
   },
 });
@@ -252,7 +252,7 @@ registerHotkeyWithCleanup({
   name: "すべて選択",
   callback: () => {
     if (!uiLocked.value && isMultiSelectEnabled.value) {
-      void store.dispatch("SET_SELECTED_AUDIO_KEYS", {
+      void store.actions.SET_SELECTED_AUDIO_KEYS({
         audioKeys: audioKeys.value,
       });
     }
@@ -326,7 +326,7 @@ const updateSplitterPosition = async (
     ...splitterPosition.value,
     [propertyName]: newValue,
   };
-  await store.dispatch("SET_ROOT_MISC_SETTING", {
+  await store.actions.SET_ROOT_MISC_SETTING({
     key: "splitterPosition",
     value: newSplitterPosition,
   });
@@ -362,7 +362,7 @@ const resizeObserverRef = ref<QResizeObserver>();
 
 // DaD
 const updateAudioKeys = (audioKeys: AudioKey[]) =>
-  store.dispatch("COMMAND_SET_AUDIO_KEYS", { audioKeys });
+  store.actions.COMMAND_SET_AUDIO_KEYS({ audioKeys });
 const itemKey = (key: string) => key;
 
 // セルを追加
@@ -381,13 +381,13 @@ const addAudioItem = async () => {
     baseAudioItem = store.state.audioItems[prevAudioKey];
   }
 
-  const audioItem = await store.dispatch("GENERATE_AUDIO_ITEM", {
+  const audioItem = await store.actions.GENERATE_AUDIO_ITEM({
     voice,
     presetKey,
     baseAudioItem,
   });
 
-  const newAudioKey = await store.dispatch("COMMAND_REGISTER_AUDIO_ITEM", {
+  const newAudioKey = await store.actions.COMMAND_REGISTER_AUDIO_ITEM({
     audioItem,
     prevAudioKey: activeAudioKey.value,
   });
@@ -401,7 +401,7 @@ const duplicateAudioItem = async () => {
 
   const prevAudioItem = toRaw(store.state.audioItems[prevAudioKey]);
 
-  const newAudioKey = await store.dispatch("COMMAND_REGISTER_AUDIO_ITEM", {
+  const newAudioKey = await store.actions.COMMAND_REGISTER_AUDIO_ITEM({
     audioItem: structuredClone(prevAudioItem),
     prevAudioKey: activeAudioKey.value,
   });
@@ -501,7 +501,7 @@ watch(userOrderedCharacterInfos, (userOrderedCharacterInfos) => {
     };
 
     // FIXME: UNDOができてしまうのでできれば直したい
-    void store.dispatch("COMMAND_MULTI_CHANGE_VOICE", {
+    void store.actions.COMMAND_MULTI_CHANGE_VOICE({
       audioKeys: [first],
       voice: voice,
     });
@@ -518,14 +518,14 @@ onetimeWatch(
       return "continue";
     if (!isProjectFileLoaded) {
       // 最初のAudioCellを作成
-      const audioItem = await store.dispatch("GENERATE_AUDIO_ITEM", {});
-      const newAudioKey = await store.dispatch("REGISTER_AUDIO_ITEM", {
+      const audioItem = await store.actions.GENERATE_AUDIO_ITEM({});
+      const newAudioKey = await store.actions.REGISTER_AUDIO_ITEM({
         audioItem,
       });
       focusCell({ audioKey: newAudioKey, focusTarget: "textField" });
 
       // 最初の話者を初期化
-      void store.dispatch("SETUP_SPEAKER", {
+      void store.actions.SETUP_SPEAKER({
         audioKeys: [newAudioKey],
         engineId: audioItem.voice.engineId,
         styleId: audioItem.voice.styleId,
@@ -557,7 +557,7 @@ watch(
       const altPort = store.state.altPortInfos[engineId];
       if (!altPort) return;
 
-      void store.dispatch("SHOW_NOTIFY_AND_NOT_SHOW_AGAIN_BUTTON", {
+      void store.actions.SHOW_NOTIFY_AND_NOT_SHOW_AGAIN_BUTTON({
         message: `${altPort.from}番ポートが使用中であるため ${engineName} は、${altPort.to}番ポートで起動しました`,
         icon: "compare_arrows",
         tipName: "engineStartedOnAltPort",
@@ -573,13 +573,13 @@ const loadDraggedFile = (event: { dataTransfer: DataTransfer | null }) => {
   const file = event.dataTransfer.files[0];
   switch (path.extname(file.name)) {
     case ".txt":
-      void store.dispatch("COMMAND_IMPORT_FROM_FILE", { filePath: file.path });
+      void store.actions.COMMAND_IMPORT_FROM_FILE({ filePath: file.path });
       break;
     case ".vvproj":
-      void store.dispatch("LOAD_PROJECT_FILE", { filePath: file.path });
+      void store.actions.LOAD_PROJECT_FILE({ filePath: file.path });
       break;
     default:
-      void store.dispatch("SHOW_ALERT_DIALOG", {
+      void store.actions.SHOW_ALERT_DIALOG({
         title: "対応していないファイルです",
         message:
           "テキストファイル (.txt) とVOICEVOXプロジェクトファイル (.vvproj) に対応しています。",
@@ -619,7 +619,7 @@ const onAudioCellPaneClick = () => {
     store.state.experimentalSetting.enableMultiSelect &&
     activeAudioKey.value
   ) {
-    void store.dispatch("SET_SELECTED_AUDIO_KEYS", {
+    void store.actions.SET_SELECTED_AUDIO_KEYS({
       audioKeys: [activeAudioKey.value],
     });
   }
diff --git a/src/components/Talk/ToolBar.vue b/src/components/Talk/ToolBar.vue
index 6a8d12a9b8..5bbb6e1e2c 100644
--- a/src/components/Talk/ToolBar.vue
+++ b/src/components/Talk/ToolBar.vue
@@ -87,24 +87,24 @@ registerHotkeyWithCleanup({
 });
 
 const undo = () => {
-  void store.dispatch("UNDO", { editor });
+  void store.actions.UNDO({ editor });
 };
 const redo = () => {
-  void store.dispatch("REDO", { editor });
+  void store.actions.REDO({ editor });
 };
 const playContinuously = async () => {
   try {
-    await store.dispatch("PLAY_CONTINUOUSLY_AUDIO");
+    await store.actions.PLAY_CONTINUOUSLY_AUDIO();
   } catch (e) {
     const msg = handlePossiblyNotMorphableError(e);
-    void store.dispatch("SHOW_ALERT_DIALOG", {
+    void store.actions.SHOW_ALERT_DIALOG({
       title: "再生に失敗しました",
       message: msg ?? "エンジンの再起動をお試しください。",
     });
   }
 };
 const stop = () => {
-  void store.dispatch("STOP_AUDIO");
+  void store.actions.STOP_AUDIO();
 };
 const generateAndSaveSelectedAudio = async () => {
   if (activeAudioKey.value == undefined)
@@ -117,35 +117,35 @@ const generateAndSaveSelectedAudio = async () => {
   ) {
     await multiGenerateAndSaveAudioWithDialog({
       audioKeys: selectedAudioKeys,
-      dispatch: store.dispatch,
+      actions: store.actions,
       disableNotifyOnGenerate: store.state.confirmedTips.notifyOnGenerate,
     });
   } else {
     await generateAndSaveOneAudioWithDialog({
       audioKey: activeAudioKey.value,
       disableNotifyOnGenerate: store.state.confirmedTips.notifyOnGenerate,
-      dispatch: store.dispatch,
+      actions: store.actions,
     });
   }
 };
 const generateAndSaveAllAudio = async () => {
   await multiGenerateAndSaveAudioWithDialog({
     audioKeys: store.state.audioKeys,
-    dispatch: store.dispatch,
+    actions: store.actions,
     disableNotifyOnGenerate: store.state.confirmedTips.notifyOnGenerate,
   });
 };
 const generateAndConnectAndSaveAudio = async () => {
   await generateAndConnectAndSaveAudioWithDialog({
-    dispatch: store.dispatch,
+    actions: store.actions,
     disableNotifyOnGenerate: store.state.confirmedTips.notifyOnGenerate,
   });
 };
 const saveProject = async () => {
-  await store.dispatch("SAVE_PROJECT_FILE", { overwrite: true });
+  await store.actions.SAVE_PROJECT_FILE({ overwrite: true });
 };
 const importTextFile = () => {
-  void store.dispatch("COMMAND_IMPORT_FROM_FILE", {});
+  void store.actions.COMMAND_IMPORT_FROM_FILE({});
 };
 
 const usableButtons: Record<
diff --git a/src/components/Talk/menuBarData.ts b/src/components/Talk/menuBarData.ts
index a94c351c40..c0bd892dad 100644
--- a/src/components/Talk/menuBarData.ts
+++ b/src/components/Talk/menuBarData.ts
@@ -12,7 +12,7 @@ export const useMenuBarData = () => {
       type: "button",
       label: "音声書き出し",
       onClick: () => {
-        void store.dispatch("SHOW_GENERATE_AND_SAVE_ALL_AUDIO_DIALOG");
+        void store.actions.SHOW_GENERATE_AND_SAVE_ALL_AUDIO_DIALOG();
       },
       disableWhenUiLocked: true,
     },
@@ -20,7 +20,7 @@ export const useMenuBarData = () => {
       type: "button",
       label: "選択音声を書き出し",
       onClick: () => {
-        void store.dispatch("SHOW_GENERATE_AND_SAVE_SELECTED_AUDIO_DIALOG");
+        void store.actions.SHOW_GENERATE_AND_SAVE_SELECTED_AUDIO_DIALOG();
       },
       disableWhenUiLocked: true,
     },
@@ -28,7 +28,7 @@ export const useMenuBarData = () => {
       type: "button",
       label: "音声を繋げて書き出し",
       onClick: () => {
-        void store.dispatch("SHOW_GENERATE_AND_CONNECT_ALL_AUDIO_DIALOG");
+        void store.actions.SHOW_GENERATE_AND_CONNECT_ALL_AUDIO_DIALOG();
       },
       disableWhenUiLocked: true,
     },
@@ -37,7 +37,7 @@ export const useMenuBarData = () => {
       type: "button",
       label: "テキストを繋げて書き出し",
       onClick: () => {
-        void store.dispatch("SHOW_CONNECT_AND_EXPORT_TEXT_DIALOG");
+        void store.actions.SHOW_CONNECT_AND_EXPORT_TEXT_DIALOG();
       },
       disableWhenUiLocked: true,
     },
@@ -45,7 +45,7 @@ export const useMenuBarData = () => {
       type: "button",
       label: "テキスト読み込み",
       onClick: () => {
-        void store.dispatch("COMMAND_IMPORT_FROM_FILE", {});
+        void store.actions.COMMAND_IMPORT_FROM_FILE({});
       },
       disableWhenUiLocked: true,
     },
diff --git a/src/components/ToolTip.vue b/src/components/ToolTip.vue
index c3f9dca839..491016b971 100644
--- a/src/components/ToolTip.vue
+++ b/src/components/ToolTip.vue
@@ -31,7 +31,7 @@ const store = useStore();
 const tipConfirmed = computed({
   get: () => store.state.confirmedTips[props.tipKey],
   set: (value) =>
-    store.dispatch("SET_CONFIRMED_TIPS", {
+    store.actions.SET_CONFIRMED_TIPS({
       confirmedTips: {
         ...store.state.confirmedTips,
         [props.tipKey]: value,
diff --git a/src/store/ui.ts b/src/store/ui.ts
index 70ceb566a2..9d6bdb5afa 100644
--- a/src/store/ui.ts
+++ b/src/store/ui.ts
@@ -282,9 +282,8 @@ export const uiStore = createPartialStore<UiStoreTypes>({
   },
 
   SHOW_NOTIFY_AND_NOT_SHOW_AGAIN_BUTTON: {
-    // FIXME: showNotifyAndNotShowAgainButtonをDotNotationに対応させて修正
-    action({ dispatch }, payload: NotifyAndNotShowAgainButtonOption) {
-      showNotifyAndNotShowAgainButton({ dispatch }, payload);
+    action({ actions }, payload: NotifyAndNotShowAgainButtonOption) {
+      showNotifyAndNotShowAgainButton({ actions }, payload);
     },
   },
 
@@ -520,28 +519,26 @@ export const uiStore = createPartialStore<UiStoreTypes>({
 
   // TODO: この4つのアクションをVue側に移動したい
   SHOW_GENERATE_AND_SAVE_ALL_AUDIO_DIALOG: {
-    async action({ state, dispatch }) {
-      // FIXME: `multiGenerateAndSaveAudioWithDialog`をDotNotationに対応させて修正
+    async action({ state, actions }) {
       await multiGenerateAndSaveAudioWithDialog({
         audioKeys: state.audioKeys,
         disableNotifyOnGenerate: state.confirmedTips.notifyOnGenerate,
-        dispatch,
+        actions,
       });
     },
   },
 
   SHOW_GENERATE_AND_CONNECT_ALL_AUDIO_DIALOG: {
-    async action({ dispatch, state }) {
-      // FIXME: `generateAndConnectAndSaveAudioWithDialog`をDotNotationに対応させて修正
+    async action({ actions, state }) {
       await generateAndConnectAndSaveAudioWithDialog({
-        dispatch,
+        actions,
         disableNotifyOnGenerate: state.confirmedTips.notifyOnGenerate,
       });
     },
   },
 
   SHOW_GENERATE_AND_SAVE_SELECTED_AUDIO_DIALOG: {
-    async action({ getters, dispatch, actions, state }) {
+    async action({ getters, actions, state }) {
       const activeAudioKey = getters.ACTIVE_AUDIO_KEY;
       if (activeAudioKey == undefined) {
         void actions.SHOW_ALERT_DIALOG({
@@ -556,27 +553,25 @@ export const uiStore = createPartialStore<UiStoreTypes>({
         state.experimentalSetting.enableMultiSelect &&
         selectedAudioKeys.length > 1
       ) {
-        // FIXME: `multiGenerateAndSaveAudioWithDialog`をDotNotationに対応させて修正
         await multiGenerateAndSaveAudioWithDialog({
           audioKeys: selectedAudioKeys,
-          dispatch: dispatch,
+          actions: actions,
           disableNotifyOnGenerate: state.confirmedTips.notifyOnGenerate,
         });
       } else {
         await generateAndSaveOneAudioWithDialog({
           audioKey: activeAudioKey,
           disableNotifyOnGenerate: state.confirmedTips.notifyOnGenerate,
-          dispatch: dispatch,
+          actions: actions,
         });
       }
     },
   },
 
   SHOW_CONNECT_AND_EXPORT_TEXT_DIALOG: {
-    async action({ dispatch, state }) {
-      // FIXME: `connectAndExportTextWithDialog`をDotNotationに対応させて修正
+    async action({ actions, state }) {
       await connectAndExportTextWithDialog({
-        dispatch,
+        actions,
         disableNotifyOnGenerate: state.confirmedTips.notifyOnGenerate,
       });
     },