diff --git a/packages/shell/src/index.ts b/packages/shell/src/index.ts
index 1a2d8b0..0fab35f 100644
--- a/packages/shell/src/index.ts
+++ b/packages/shell/src/index.ts
@@ -14,6 +14,8 @@ import { uix } from './services/uix'
 import { validate } from './services/validate'
 import type { ChronocatContext, Engine } from './types'
 import { PLATFORM } from './utils/consts'
+import { exists } from './utils/fs'
+import { sleep, timeout } from './utils/time'
 
 export * from './satori/types'
 export * from './services/config/configEntity'
@@ -34,11 +36,14 @@ export const chronocat = async () => {
       api,
       baseDir,
       emit: emitter.emit,
+      exists,
       getAuthData,
       getConfig,
       getSelfProfile,
       l,
       platform: PLATFORM,
+      sleep,
+      timeout,
       uix,
       validate,
       whenReady: () => readyPromise,
diff --git a/packages/shell/src/types.ts b/packages/shell/src/types.ts
index c11c3ac..0179b8c 100644
--- a/packages/shell/src/types.ts
+++ b/packages/shell/src/types.ts
@@ -14,17 +14,22 @@ import type { getSelfProfile } from './services/selfProfile'
 import type { uix } from './services/uix'
 import type { validate } from './services/validate'
 import type { PLATFORM } from './utils/consts'
+import type { exists } from './utils/fs'
+import type { sleep, timeout } from './utils/time'
 
 export interface ChronocatContext {
   chronocat: {
     api: typeof api
     baseDir: typeof baseDir
     emit: (message: DispatchMessage) => void
+    exists: typeof exists
     getAuthData: typeof getAuthData
     getConfig: typeof getConfig
     getSelfProfile: typeof getSelfProfile
     l: typeof l
     platform: typeof PLATFORM
+    sleep: typeof sleep
+    timeout: typeof timeout
     uix: typeof uix
     validate: typeof validate
     whenReady: () => Promise<void>