diff --git a/build/clean.ts b/build/clean.ts
deleted file mode 100644
index 8161983b3c..0000000000
--- a/build/clean.ts
+++ /dev/null
@@ -1,15 +0,0 @@
-import { cwd, getPackages } from '@koishijs/scripts'
-import { rm } from 'fs/promises'
-import cac from 'cac'
-
-const { args } = cac().help().parse()
-
-;(async () => {
-  const packages = await getPackages(args)
-  await Promise.all(Object.keys(packages).flatMap((path) => [
-    rm(cwd + path + '/dist', { recursive: true, force: true }),
-    rm(cwd + path + '/lib', { recursive: true, force: true }),
-    rm(cwd + path + '/temp', { recursive: true, force: true }),
-    rm(cwd + path + '/tsconfig.tsbuildinfo', { recursive: true, force: true }),
-  ]))
-})()
diff --git a/build/index.ts b/build/index.ts
deleted file mode 100644
index bbe45dc7da..0000000000
--- a/build/index.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import { BuildOptions } from 'esbuild'
-
-interface InputBuildOptions extends BuildOptions {
-  entryPoints: string[]
-}
-
-type DefineBuild = (base: string, options: InputBuildOptions) => void | Promise<void> | BuildOptions[] | Promise<BuildOptions[]>
-
-export const defineBuild = (callback: DefineBuild) => callback
diff --git a/build/tsconfig.json b/build/tsconfig.json
deleted file mode 100644
index fd9a7ec467..0000000000
--- a/build/tsconfig.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "extends": "../tsconfig.base"
-}
\ No newline at end of file