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---
title: 项目结构
description: 脚手架生成的 Twenty 应用中包含哪些内容——文件、文件夹以及它们各自的作用。
icon: folder-tree
---
由 `npx create-twenty-app` 生成的新应用看起来是这样的:
```text filename="my-twenty-app/"
my-twenty-app/
package.json
src/
application-config.ts # Required — your app's entry point
default-role.ts # Permissions for logic functions
constants/
universal-identifiers.ts # Auto-generated UUIDs and metadata
front-components/
main-page.tsx # Welcome page component
navigation-menu-items/
main-page.navigation-menu-item.ts # Sidebar entry for the welcome page
page-layouts/
main-page.page-layout.ts # Standalone page hosting the component
__tests__/
application-config.test.ts # Unit test
global-setup.ts # Integration test setup (sync + uninstall)
schema.integration-test.ts # Integration test against a live server
.github/workflows/
ci.yml # Lint, typecheck, unit + integration tests
cd.yml # Deploy + install on push to main
publish.yml # Publish to npm on version tags (with provenance)
public/
logo.svg # Static assets
vitest.config.ts # Integration test runner config
vitest.unit.config.ts # Unit test runner config
tsconfig.json, tsconfig.spec.json
.nvmrc, .yarnrc.yml, .oxlintrc.json
README.md, AGENTS.md, CLAUDE.md, CHANGELOG.md, SETUP.md
```
## 关键文件
| 文件 / 文件夹 | 目的 |
| -------------------------------------------------------------------------- | --------------------------------------- |
| `src/application-config.ts` | **必需。** 应用的主配置文件。 |
| `src/default-role.ts` | 默认角色,用于控制你的逻辑函数可访问的内容。 |
| `src/constants/universal-identifiers.ts` | 自动生成的 UUID 和元数据(显示名称、描述)。 |
| `src/front-components/`, `src/navigation-menu-items/`, `src/page-layouts/` | 一个入门欢迎页面:由独立页面布局渲染的前端组件,可从侧边栏访问。 |
| `src/__tests__/` | 一个单元测试加一个集成测试(带有其全局设置),用于将应用与真实服务器进行同步。 |
| `public/` | 随应用一起提供的静态资源(图像、字体)。 |
| `AGENTS.md` / `CLAUDE.md` | 为在该应用上工作的 AI 编码代理提供指导。 |
| `CHANGELOG.md` / `SETUP.md` | 显著更改的更新日志以及用于本地开发的设置说明。 |
<Note>
**文件组织由你决定。** 上述文件夹只是约定——SDK 通过对 `export default defineEntity(...)` 调用进行 AST 分析来检测实体,而不受文件所在位置影响。
</Note>
## 依赖项
这两个 Twenty SDK 软件包都应放在 `devDependencies` 下,而不是 `dependencies`:
```json filename="package.json"
{
"dependencies": {},
"devDependencies": {
"twenty-client-sdk": "2.20.0",
"twenty-sdk": "2.20.0",
"twenty-ui": "1.0.0-alpha.1"
}
}
```
脚手架工具将 `twenty-sdk` 和 `twenty-client-sdk` 固定为与自身相同的版本——升级时请保持这两者同步。
* **`twenty-sdk`** 提供 `twenty` CLI 以及构建/脚手架工具。 它只在开发和构建阶段运行,且永远不会在已发布应用的运行时环境中被导入。
* **`twenty-client-sdk`** 会被你的应用代码(`CoreApiClient`、`MetadataApiClient`、`RestApiClient`)导入,但 Twenty 会在运行时提供它——逻辑函数从生成的 SDK 层获取它,前端组件则从服务器提供的模块中解析它。 你安装的副本仅用于类型检查和部署时的构建,因此不需要被打包进已部署的 bundle 中。
把任意一个软件包放在 `dependencies` 下,都会把它拉入已安装应用的运行时 bundle 中,在那里只是累赘。 当任一软件包仍然列在 `dependencies` 下时,`twenty dev:build` 会发出警告。
像往常一样,把你的应用自身的运行时依赖项(逻辑函数在运行时实际导入的库)添加到 `dependencies` 下。 保持依赖树精简:`dependencies` 会被安装到一个解压后上限为 250MB 的运行时层中,如果超过该依赖大小限制,同步或安装就会失败并报依赖大小错误——UI 库和开发工具应放在 `devDependencies` 中。