antfu

name	antfu
description	Anthony Fu's opinionated tooling and conventions for JavaScript/TypeScript projects. Use when setting up new projects, configuring ESLint/Prettier alternatives, monorepos, library publishing, or when the user mentions Anthony Fu's preferences.
metadata	{"author":"Anthony Fu","version":"2026.1.28"}

Anthony Fu's Preferences

Category	Preference
Package Manager	pnpm (with @antfu/ni for unified commands)
Language	TypeScript (strict mode, ESM only)
Linting & Formatting	@antfu/eslint-config (no Prettier)
Testing	Vitest
Git Hooks	simple-git-hooks + lint-staged
Bundler (Libraries)	tsdown
Documentation	VitePress

---

Core Conventions

@antfu/ni Commands

Command	Description
ni	Install dependencies
ni <pkg> / ni -D <pkg>	Add dependency / dev dependency
nr <script>	Run script
nu	Upgrade dependencies
nun <pkg>	Uninstall dependency
nci	Clean install (pnpm i --frozen-lockfile)
nlx <pkg>	Execute package (npx)

TypeScript Config

{
  "compilerOptions": {
    "target": "ESNext",
    "module": "ESNext",
    "moduleResolution": "bundler",
    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true
  }
}

ESLint Setup

// eslint.config.mjs
import antfu from '@antfu/eslint-config'

export default antfu()

Fix linting errors with nr lint --fix. Do NOT add a separate lint:fix script.

For detailed configuration options: antfu-eslint-config

Git Hooks

{
  "simple-git-hooks": {
    "pre-commit": "pnpm i --frozen-lockfile --ignore-scripts --offline && npx lint-staged"
  },
  "lint-staged": { "*": "eslint --fix" },
  "scripts": { "prepare": "npx simple-git-hooks" }
}

Vitest Conventions

• Test files: foo.ts → foo.test.ts (same directory)
• Use describe/it API (not test)
• Use toMatchSnapshot for complex outputs
• Use toMatchFileSnapshot with explicit path for language-specific snapshots

---

pnpm Catalogs

Use named catalogs in pnpm-workspace.yaml for version management:

Catalog	Purpose
prod	Production dependencies
inlined	Bundler-inlined dependencies
dev	Dev tools (linter, bundler, testing)
frontend	Frontend libraries

Avoid the default catalog. Catalog names can be adjusted per project needs.

---

References

Topic	Description	Reference
ESLint Config	Framework support, formatters, rule overrides, VS Code settings	antfu-eslint-config
Project Setup	.gitignore, GitHub Actions, VS Code extensions	setting-up
App Development	Vue/Nuxt/UnoCSS conventions and patterns	app-development
Library Development	tsdown bundling, pure ESM publishing	library-development
Monorepo	pnpm workspaces, centralized alias, Turborepo	monorepo