diff --git a/apps/stage-tamagotchi/vite.config.ts b/apps/stage-tamagotchi/vite.config.ts
index ce454d4fa..8746ba379 100644
--- a/apps/stage-tamagotchi/vite.config.ts
+++ b/apps/stage-tamagotchi/vite.config.ts
@@ -60,6 +60,8 @@ export default defineConfig({
     DownloadLive2DSDK(),
     Download('https://dist.ayaka.moe/live2d-models/hiyori_free_zh.zip', 'hiyori_free_zh.zip', 'assets/live2d/models'),
     Download('https://dist.ayaka.moe/live2d-models/hiyori_pro_zh.zip', 'hiyori_pro_zh.zip', 'assets/live2d/models'),
+    Download('https://dist.ayaka.moe/vrm-models/VRoid-Hub/AvatarSample-A/AvatarSample_A.vrm', 'AvatarSample_A.vrm', 'assets/vrm/models/AvatarSample-A'),
+    Download('https://dist.ayaka.moe/vrm-models/VRoid-Hub/AvatarSample-B/AvatarSample_B.vrm', 'AvatarSample_B.vrm', 'assets/vrm/models/AvatarSample-B'),
   ],
   server: {
     watch: {
diff --git a/apps/stage-web/index.html b/apps/stage-web/index.html
index 6037b163d..0354d5c59 100644
--- a/apps/stage-web/index.html
+++ b/apps/stage-web/index.html
@@ -2,7 +2,8 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <title>アイリ</title>
+    <title>AIRI</title>
+    <description>Open source attempt to create cyber companion</description>
     <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" sizes="any" />
     <link rel="shortcut icon" href="/favicon.ico" />
diff --git a/apps/stage-web/package.json b/apps/stage-web/package.json
index 7a17409b0..e434fbdd0 100644
--- a/apps/stage-web/package.json
+++ b/apps/stage-web/package.json
@@ -20,6 +20,7 @@
     "@formkit/auto-animate": "^0.8.2",
     "@huggingface/transformers": "^3.5.2",
     "@llama-flow/core": "^0.4.4",
+    "@moeru/std": "0.1.0-beta.1",
     "@pixiv/three-vrm": "^3.4.1",
     "@pixiv/three-vrm-animation": "^3.4.1",
     "@pixiv/three-vrm-core": "^3.4.1",
diff --git a/apps/stage-web/src/components/Layouts/HeaderLink.vue b/apps/stage-web/src/components/Layouts/HeaderLink.vue
index f4e3c07f0..c74ffb82d 100644
--- a/apps/stage-web/src/components/Layouts/HeaderLink.vue
+++ b/apps/stage-web/src/components/Layouts/HeaderLink.vue
@@ -19,8 +19,8 @@ const dark = useDark()
     <template v-else>
       <img :src="Logo" h-8 w-8 class="theme-colored">
     </template>
-    <div font-cute>
-      <span>アイリ</span>
+    <div translate-y="[2px]" font-semibold font-quicksand>
+      <span>AIRI</span>
     </div>
   </RouterLink>
 </template>
diff --git a/apps/stage-web/src/pages/queue.vue b/apps/stage-web/src/pages/queue.vue
index e315c7e9a..8480fb4f7 100644
--- a/apps/stage-web/src/pages/queue.vue
+++ b/apps/stage-web/src/pages/queue.vue
@@ -1,11 +1,8 @@
 <script setup lang="ts">
+import { sleep } from '@moeru/std'
 import { useQueue } from '@proj-airi/stage-ui/composables/queue'
 import { onMounted, ref } from 'vue'
 
-function sleep(ms: number): Promise<void> {
-  return new Promise(resolve => setTimeout(resolve, ms))
-}
-
 const temp = ref<string>('')
 
 const audioQueue = useQueue<string>({
diff --git a/apps/stage-web/src/pages/test/filter-message.vue b/apps/stage-web/src/pages/test/filter-message.vue
index f1881beb9..016c570b2 100644
--- a/apps/stage-web/src/pages/test/filter-message.vue
+++ b/apps/stage-web/src/pages/test/filter-message.vue
@@ -1,4 +1,5 @@
 <script setup lang="ts">
+import { sleep } from '@moeru/std'
 import { Textarea } from '@proj-airi/ui'
 import { ref } from 'vue'
 
@@ -6,10 +7,6 @@ const messageInput = ref<string>('')
 const processing = ref<boolean>(false)
 const streamingMessage = ref({ content: '' })
 
-async function sleep(ms: number) {
-  return new Promise(resolve => setTimeout(resolve, ms))
-}
-
 async function onSendMessage() {
   processing.value = true
 
diff --git a/apps/stage-web/src/pages/test/queues/messages.vue b/apps/stage-web/src/pages/test/queues/messages.vue
index 5cd95ebff..f3ac55065 100644
--- a/apps/stage-web/src/pages/test/queues/messages.vue
+++ b/apps/stage-web/src/pages/test/queues/messages.vue
@@ -9,10 +9,6 @@ const messageInput = ref<string>('')
 const ttsProcessed = ref<string[]>([])
 const processing = ref<boolean>(false)
 
-// async function sleep(ms: number) {
-//   return new Promise(resolve => setTimeout(resolve, ms))
-// }
-
 const ttsQueue = useQueue<string>({
   handlers: [
     async (ctx) => {
diff --git a/apps/stage-web/vite.config.ts b/apps/stage-web/vite.config.ts
index 19b5e9273..c9bde32b9 100644
--- a/apps/stage-web/vite.config.ts
+++ b/apps/stage-web/vite.config.ts
@@ -1,5 +1,3 @@
-import { Buffer } from 'node:buffer'
-import { cp, mkdir, writeFile } from 'node:fs/promises'
 import { join, resolve } from 'node:path'
 import { env } from 'node:process'
 
@@ -9,7 +7,6 @@ import { DownloadLive2DSDK } from '@proj-airi/unplugin-live2d-sdk/vite'
 import { templateCompilerOptions } from '@tresjs/core'
 import Vue from '@vitejs/plugin-vue'
 import { LFS, SpaceCard } from 'hfup/vite'
-import { ofetch } from 'ofetch'
 import Unocss from 'unocss/vite'
 import VueMacros from 'unplugin-vue-macros/vite'
 import VueRouter from 'unplugin-vue-router/vite'
@@ -18,15 +15,18 @@ import { VitePWA } from 'vite-plugin-pwa'
 import VueDevTools from 'vite-plugin-vue-devtools'
 import Layouts from 'vite-plugin-vue-layouts'
 
-import { exists } from '../../scripts/fs'
-
 export default defineConfig({
   optimizeDeps: {
     exclude: [
+      // Internal Packages
       '@proj-airi/stage-ui/*',
       '@proj-airi/drizzle-duckdb-wasm',
       '@proj-airi/drizzle-duckdb-wasm/*',
+
+      // Static Assets: Models, Images, etc.
       'public/assets/*',
+
+      // Live2D SDK
       '@framework/live2dcubismframework',
       '@framework/math/cubismmatrix44',
       '@framework/type/csmvector',
@@ -74,6 +74,7 @@ export default defineConfig({
     VueRouter({
       extensions: ['.vue', '.md'],
       dts: resolve(import.meta.dirname, 'src/typed-router.d.ts'),
+      importMode: 'async',
     }),
 
     // https://github.com/JohnCampionJr/vite-plugin-vue-layouts
@@ -143,79 +144,11 @@ export default defineConfig({
     DownloadLive2DSDK(),
     Download('https://dist.ayaka.moe/live2d-models/hiyori_free_zh.zip', 'hiyori_free_zh.zip', 'assets/live2d/models'),
     Download('https://dist.ayaka.moe/live2d-models/hiyori_pro_zh.zip', 'hiyori_pro_zh.zip', 'assets/live2d/models'),
-
-    {
-      name: 'vrm-models-sample-a',
-      async configResolved(config) {
-        const cacheDir = resolve(join(config.root, '.cache'))
-        const publicDir = resolve(join(config.root, 'public'))
-
-        try {
-          if (!(await exists(resolve(join(cacheDir, 'assets/vrm/models/AvatarSample-A'))))) {
-            await mkdir(join(cacheDir, 'assets/vrm/models/AvatarSample-A'), { recursive: true })
-
-            console.log('Downloading VRM Model - Avatar Sample A...')
-            const res = await ofetch('https://dist.ayaka.moe/vrm-models/VRoid-Hub/AvatarSample-A/AvatarSample_A.vrm', { responseType: 'arrayBuffer' })
-
-            console.log('Saving VRM Model - Avatar Sample A...')
-            await writeFile(join(cacheDir, 'assets/vrm/models/AvatarSample-A/AvatarSample_A.vrm'), Buffer.from(res))
-
-            console.log('VRM Model - Avatar Sample A downloaded and saved.')
-          }
-
-          if (!(await exists(resolve(join(publicDir, 'assets/vrm/models/AvatarSample-A'))))) {
-            await mkdir(join(publicDir, 'assets/vrm/models/AvatarSample-A'), { recursive: true }).catch(() => { })
-            await cp(join(cacheDir, 'assets/vrm/models/AvatarSample-A'), join(publicDir, 'assets/vrm/models/AvatarSample-A'), { recursive: true })
-          }
-        }
-        catch (err) {
-          console.error(err)
-          throw err
-        }
-      },
-    },
-    {
-      name: 'vrm-models-sample-b',
-      async configResolved(config) {
-        const cacheDir = resolve(join(config.root, '.cache'))
-        const publicDir = resolve(join(config.root, 'public'))
-
-        try {
-          if (!(await exists(resolve(join(cacheDir, 'assets/vrm/models/AvatarSample-B'))))) {
-            await mkdir(join(cacheDir, 'assets/vrm/models/AvatarSample-B'), { recursive: true })
-
-            console.log('Downloading VRM Model - Avatar Sample B...')
-            const res = await ofetch('https://dist.ayaka.moe/vrm-models/VRoid-Hub/AvatarSample-B/AvatarSample_B.vrm', { responseType: 'arrayBuffer' })
-
-            console.log('Saving VRM Model - Avatar Sample B...')
-            await writeFile(join(cacheDir, 'assets/vrm/models/AvatarSample-B/AvatarSample_B.vrm'), Buffer.from(res))
-          }
-
-          if (!(await exists(resolve(join(publicDir, 'assets/vrm/models/AvatarSample-B'))))) {
-            await mkdir(join(publicDir, 'assets/vrm/models/AvatarSample-B'), { recursive: true }).catch(() => { })
-            await cp(join(cacheDir, 'assets/vrm/models/AvatarSample-B'), join(publicDir, 'assets/vrm/models/AvatarSample-B'), { recursive: true })
-          }
-        }
-        catch (err) {
-          console.error(err)
-          throw err
-        }
-      },
-    },
+    Download('https://dist.ayaka.moe/vrm-models/VRoid-Hub/AvatarSample-A/AvatarSample_A.vrm', 'AvatarSample_A.vrm', 'assets/vrm/models/AvatarSample-A'),
+    Download('https://dist.ayaka.moe/vrm-models/VRoid-Hub/AvatarSample-B/AvatarSample_B.vrm', 'AvatarSample_B.vrm', 'assets/vrm/models/AvatarSample-B'),
 
     // HuggingFace Spaces
-    LFS({
-      extraGlobs: [
-        '*.vrm',
-        '*.cmo3',
-        '*.png',
-        '*.jpg',
-        '*.jpeg',
-        '*.gif',
-        '*.webp',
-        '*.bmp',
-      ],
-    }),
+    LFS({ extraGlobs: ['*.vrm', '*.cmo3', '*.png', '*.jpg', '*.jpeg', '*.gif', '*.webp', '*.bmp'] }),
     SpaceCard({
       title: 'アイリ VTuber',
       emoji: '🧸',
@@ -224,7 +157,10 @@ export default defineConfig({
       sdk: 'static',
       pinned: false,
       license: 'mit',
-      models: ['onnx-community/whisper-base'],
+      models: [
+        'onnx-community/whisper-base',
+        'onnx-community/silero-vad',
+      ],
       short_description: 'アイリ VTuber. LLM powered Live2D/VRM living character.',
     }),
   ],
diff --git a/packages/server-sdk/package.json b/packages/server-sdk/package.json
index 340ae4a2b..97529a791 100644
--- a/packages/server-sdk/package.json
+++ b/packages/server-sdk/package.json
@@ -40,5 +40,8 @@
     "@proj-airi/server-shared": "workspace:^",
     "crossws": "^0.4.1",
     "defu": "^6.1.4"
+  },
+  "devDependencies": {
+    "@moeru/std": "0.1.0-beta.1"
   }
 }
diff --git a/packages/server-sdk/src/client.ts b/packages/server-sdk/src/client.ts
index f7888be9e..93ee58dbe 100644
--- a/packages/server-sdk/src/client.ts
+++ b/packages/server-sdk/src/client.ts
@@ -1,10 +1,9 @@
 import type { WebSocketBaseEvent, WebSocketEvent, WebSocketEvents } from '@proj-airi/server-shared/types'
 
+import { sleep } from '@moeru/std'
 import WebSocket from 'crossws/websocket'
 import { defu } from 'defu'
 
-import { sleep } from './utils'
-
 export interface ClientOptions<C = undefined> {
   url?: string
   name: string
diff --git a/packages/server-sdk/src/utils/concurrency.ts b/packages/server-sdk/src/utils/concurrency.ts
deleted file mode 100644
index 39068174d..000000000
--- a/packages/server-sdk/src/utils/concurrency.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export function sleep(ms: number) {
-  return new Promise(resolve => setTimeout(resolve, ms))
-}
diff --git a/packages/server-sdk/src/utils/index.ts b/packages/server-sdk/src/utils/index.ts
deleted file mode 100644
index 0ffd285bf..000000000
--- a/packages/server-sdk/src/utils/index.ts
+++ /dev/null
@@ -1 +0,0 @@
-export * from './concurrency'
diff --git a/packages/stage-ui/package.json b/packages/stage-ui/package.json
index 354bbdf77..dee111bd4 100644
--- a/packages/stage-ui/package.json
+++ b/packages/stage-ui/package.json
@@ -104,6 +104,7 @@
   },
   "devDependencies": {
     "@histoire/plugin-vue": "1.0.0-alpha.2",
+    "@moeru/std": "0.1.0-beta.1",
     "@types/culori": "^4.0.0",
     "@types/three": "^0.177.0",
     "@unocss/reset": "^66.2.3",
diff --git a/packages/stage-ui/src/composables/queues.ts b/packages/stage-ui/src/composables/queues.ts
index 5c11514f9..01e0870f6 100644
--- a/packages/stage-ui/src/composables/queues.ts
+++ b/packages/stage-ui/src/composables/queues.ts
@@ -1,6 +1,7 @@
 import type { Emotion } from '../constants/emotions'
 import type { UseQueueReturn } from './queue'
 
+import { sleep } from '@moeru/std'
 import { ref } from 'vue'
 
 import { llmInferenceEndToken } from '../constants'
@@ -86,10 +87,6 @@ export function useDelayMessageQueue() {
     }
   }
 
-  function sleep(ms: number) {
-    return new Promise(resolve => setTimeout(resolve, ms))
-  }
-
   return useQueue<string>({
     handlers: [
       async (ctx) => {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 70d4d33b9..4edd8a65b 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -547,6 +547,9 @@ importers:
       '@llama-flow/core':
         specifier: ^0.4.4
         version: 0.4.4(@modelcontextprotocol/sdk@1.13.0)(zod@3.25.67)
+      '@moeru/std':
+        specifier: 0.1.0-beta.1
+        version: 0.1.0-beta.1
       '@pixiv/three-vrm':
         specifier: ^3.4.1
         version: 3.4.1(three@0.177.0)
@@ -909,6 +912,10 @@ importers:
       defu:
         specifier: ^6.1.4
         version: 6.1.4
+    devDependencies:
+      '@moeru/std':
+        specifier: 0.1.0-beta.1
+        version: 0.1.0-beta.1
 
   packages/server-shared: {}
 
@@ -1116,6 +1123,9 @@ importers:
       '@histoire/plugin-vue':
         specifier: 1.0.0-alpha.2
         version: 1.0.0-alpha.2(histoire@1.0.0-alpha.2(@types/node@24.0.3)(bufferutil@4.0.9)(less@4.3.0)(lightningcss@1.30.1)(terser@5.17.6)(utf-8-validate@5.0.10)(vite@6.3.5(@types/node@24.0.3)(jiti@2.4.2)(less@4.3.0)(lightningcss@1.30.1)(terser@5.17.6)(tsx@4.20.3)(yaml@2.8.0)))(vite@6.3.5(@types/node@24.0.3)(jiti@2.4.2)(less@4.3.0)(lightningcss@1.30.1)(terser@5.17.6)(tsx@4.20.3)(yaml@2.8.0))(vue@3.5.17(typescript@5.8.3))
+      '@moeru/std':
+        specifier: 0.1.0-beta.1
+        version: 0.1.0-beta.1
       '@types/culori':
         specifier: ^4.0.0
         version: 4.0.0
@@ -1300,6 +1310,9 @@ importers:
       '@guiiai/logg':
         specifier: ^1.0.10
         version: 1.0.10
+      '@moeru/std':
+        specifier: 0.1.0-beta.1
+        version: 0.1.0-beta.1
       '@proj-airi/server-sdk':
         specifier: ^0.6.1
         version: 0.6.1
@@ -1391,6 +1404,9 @@ importers:
       '@guiiai/logg':
         specifier: ^1.0.10
         version: 1.0.10
+      '@moeru/std':
+        specifier: 0.1.0-beta.1
+        version: 0.1.0-beta.1
       '@xsai-ext/providers-cloud':
         specifier: 'catalog:'
         version: 0.3.0-beta.4
diff --git a/scripts/fs.ts b/scripts/fs.ts
deleted file mode 100644
index 808bf6190..000000000
--- a/scripts/fs.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-import { stat } from 'node:fs/promises'
-
-export async function exists(path: string) {
-  try {
-    await stat(path)
-    return true
-  }
-  catch (error) {
-    if (isENOENTError(error))
-      return false
-
-    throw error
-  }
-}
-
-export function isENOENTError(error: unknown): boolean {
-  if (!(error instanceof Error))
-    return false
-  if (!('code' in error))
-    return false
-  if (error.code !== 'ENOENT')
-    return false
-
-  return true
-}
diff --git a/services/minecraft/package.json b/services/minecraft/package.json
index 39d910d90..7d892f1aa 100644
--- a/services/minecraft/package.json
+++ b/services/minecraft/package.json
@@ -13,6 +13,7 @@
   },
   "dependencies": {
     "@guiiai/logg": "^1.0.10",
+    "@moeru/std": "0.1.0-beta.1",
     "@proj-airi/server-sdk": "^0.6.1",
     "awilix": "^12.0.5",
     "es-toolkit": "^1.39.3",
diff --git a/services/minecraft/src/agents/action/tools.test.ts b/services/minecraft/src/agents/action/tools.test.ts
index 14af19f8e..74554766d 100644
--- a/services/minecraft/src/agents/action/tools.test.ts
+++ b/services/minecraft/src/agents/action/tools.test.ts
@@ -1,3 +1,4 @@
+import { sleep } from '@moeru/std'
 import { messages, system, user } from 'neuri/openai'
 import { beforeAll, describe, expect, it } from 'vitest'
 
@@ -5,7 +6,6 @@ import { initBot, useBot } from '../../composables/bot'
 import { config, initEnv } from '../../composables/config'
 import { createNeuriAgent } from '../../composables/neuri'
 import { generateActionAgentPrompt } from '../../libs/llm-agent/prompt'
-import { sleep } from '../../utils/helper'
 import { initLogger } from '../../utils/logger'
 
 describe('actions agent', { timeout: 0 }, () => {
diff --git a/services/minecraft/src/skills/actions/gather-wood.ts b/services/minecraft/src/skills/actions/gather-wood.ts
index a163ab15e..c8edcf270 100644
--- a/services/minecraft/src/skills/actions/gather-wood.ts
+++ b/services/minecraft/src/skills/actions/gather-wood.ts
@@ -1,6 +1,7 @@
 import type { Mineflayer } from '../../libs/mineflayer'
 
-import { sleep } from '../../utils/helper'
+import { sleep } from '@moeru/std'
+
 import { useLogger } from '../../utils/logger'
 import { breakBlockAt } from '../blocks'
 import { goToPosition, moveAway } from '../movement'
diff --git a/services/minecraft/src/skills/actions/world-interactions.ts b/services/minecraft/src/skills/actions/world-interactions.ts
index 16262f99f..9ac9d11d2 100644
--- a/services/minecraft/src/skills/actions/world-interactions.ts
+++ b/services/minecraft/src/skills/actions/world-interactions.ts
@@ -3,10 +3,10 @@ import type { Block } from 'prismarine-block'
 
 import type { Mineflayer } from '../../libs/mineflayer'
 
+import { sleep } from '@moeru/std'
 import pathfinder from 'mineflayer-pathfinder'
 import { Vec3 } from 'vec3'
 
-import { sleep } from '../../utils/helper'
 import { useLogger } from '../../utils/logger'
 import { getNearestBlock, makeItem } from '../../utils/mcdata'
 import { goToPosition } from '../movement'
diff --git a/services/minecraft/src/skills/combat.ts b/services/minecraft/src/skills/combat.ts
index 26bbe4b44..783e92386 100644
--- a/services/minecraft/src/skills/combat.ts
+++ b/services/minecraft/src/skills/combat.ts
@@ -3,9 +3,9 @@ import type { Item } from 'prismarine-item'
 
 import type { Mineflayer } from '../libs/mineflayer'
 
+import { sleep } from '@moeru/std'
 import pathfinderModel from 'mineflayer-pathfinder'
 
-import { sleep } from '../utils/helper'
 import { isHostile } from '../utils/mcdata'
 import { log } from './base'
 import { getNearbyEntities, getNearestEntityWhere } from './world'
diff --git a/services/minecraft/src/skills/movement.ts b/services/minecraft/src/skills/movement.ts
index e925dd9da..c030185e5 100644
--- a/services/minecraft/src/skills/movement.ts
+++ b/services/minecraft/src/skills/movement.ts
@@ -2,11 +2,11 @@ import type { Entity } from 'prismarine-entity'
 
 import type { Mineflayer } from '../libs/mineflayer'
 
+import { sleep } from '@moeru/std'
 import { randomInt } from 'es-toolkit'
 import pathfinder from 'mineflayer-pathfinder'
 import { Vec3 } from 'vec3'
 
-import { sleep } from '../utils/helper'
 import { useLogger } from '../utils/logger'
 import { log } from './base'
 import { getNearestBlock, getNearestEntityWhere } from './world'
diff --git a/services/minecraft/src/utils/helper.ts b/services/minecraft/src/utils/helper.ts
index e0600bf2b..e434db33e 100644
--- a/services/minecraft/src/utils/helper.ts
+++ b/services/minecraft/src/utils/helper.ts
@@ -1,4 +1,4 @@
-export const sleep = (ms: number) => new Promise(resolve => setTimeout(resolve, ms))
+import { sleep } from '@moeru/std'
 
 /**
  * Returns a retirable anonymous function with configured retryLimit and delayInterval
diff --git a/services/telegram-bot/package.json b/services/telegram-bot/package.json
index c9b6cb6fc..f0dabe8ca 100644
--- a/services/telegram-bot/package.json
+++ b/services/telegram-bot/package.json
@@ -26,6 +26,7 @@
     "@ffmpeg-installer/ffmpeg": "^1.1.0",
     "@grammyjs/files": "^1.1.1",
     "@guiiai/logg": "^1.0.10",
+    "@moeru/std": "0.1.0-beta.1",
     "@xsai-ext/providers-cloud": "catalog:",
     "@xsai/embed": "catalog:",
     "@xsai/generate-text": "catalog:",
diff --git a/services/telegram-bot/src/bots/telegram/utils/message.ts b/services/telegram-bot/src/bots/telegram/utils/message.ts
index 44c49c9ea..509e37602 100644
--- a/services/telegram-bot/src/bots/telegram/utils/message.ts
+++ b/services/telegram-bot/src/bots/telegram/utils/message.ts
@@ -3,12 +3,13 @@ import type { Message } from 'grammy/types'
 import type { BotSelf } from '../../../types'
 
 import { useLogg } from '@guiiai/logg'
+import { sleep } from '@moeru/std'
 import { parse } from 'best-effort-json-parser'
 import { randomInt } from 'es-toolkit'
 
 import { recordMessage } from '../../../models'
 import { listJoinedChats } from '../../../models/chats'
-import { cancellable, sleep } from '../../../utils/promise'
+import { cancellable } from '../../../utils/promise'
 
 export function parseMayStructuredMessage(responseText: string) {
   const logger = useLogg('parseMayStructuredMessage').useGlobalConfig()
diff --git a/services/telegram-bot/src/utils/fs.ts b/services/telegram-bot/src/utils/fs.ts
deleted file mode 100644
index 808bf6190..000000000
--- a/services/telegram-bot/src/utils/fs.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-import { stat } from 'node:fs/promises'
-
-export async function exists(path: string) {
-  try {
-    await stat(path)
-    return true
-  }
-  catch (error) {
-    if (isENOENTError(error))
-      return false
-
-    throw error
-  }
-}
-
-export function isENOENTError(error: unknown): boolean {
-  if (!(error instanceof Error))
-    return false
-  if (!('code' in error))
-    return false
-  if (error.code !== 'ENOENT')
-    return false
-
-  return true
-}
diff --git a/services/telegram-bot/src/utils/promise.ts b/services/telegram-bot/src/utils/promise.ts
index dd42114c1..358c6e1fe 100644
--- a/services/telegram-bot/src/utils/promise.ts
+++ b/services/telegram-bot/src/utils/promise.ts
@@ -1,9 +1,3 @@
-export function sleep(ms: number) {
-  return new Promise((resolve) => {
-    setTimeout(resolve, ms)
-  })
-}
-
 export interface CancellablePromise<T> {
   promise: Promise<T>
   cancel: () => void
diff --git a/services/telegram-bot/src/utils/time.ts b/services/telegram-bot/src/utils/time.ts
deleted file mode 100644
index bbe7613ac..000000000
--- a/services/telegram-bot/src/utils/time.ts
+++ /dev/null
@@ -1,27 +0,0 @@
-const timerMap = new Map()
-
-export function setClockInterval(func: (...args: any[]) => any, interval: number) {
-  let start: number
-  let tick: number
-  let clockTimer: ReturnType<typeof setTimeout>
-  const timerId = Math.floor(Math.random() * 1e10)
-
-  const recurFunc = () => {
-    func()
-    const realExecuteTime = new Date().getTime()
-    if (!start) {
-      start = realExecuteTime
-    }
-
-    tick = tick || start
-    const diff = realExecuteTime - tick
-    tick += interval
-
-    // Since setTimeout is not accurate, we need to adjust the interval
-    clockTimer = setTimeout(recurFunc, interval - diff)
-    timerMap.set(timerId, clockTimer)
-  }
-
-  recurFunc()
-  return timerId
-}
