create-auth-skill

Scaffold and implement authentication in TypeScript/JavaScript apps with Better Auth framework detection, database adapter setup, and OAuth integration.

- Detects frameworks (Next.js, SvelteKit, Nuxt, Astro, Express, Hono), databases (Prisma, Drizzle, MongoDB, raw drivers), and existing auth libraries through project scanning

- Supports email/password, OAuth (Google, GitHub, Apple, Microsoft, Discord, Twitter), magic links, passkeys, and phone authentication with configurable email verification and password reset

- Includes plugins for two-factor authentication, organizations/teams, admin dashboards, API bearer tokens, and enterprise SSO via scoped packages

- Generates server config (auth.ts), client config (auth-client.ts), route handlers, database migrations, and auth UI pages tailored to your framework and requirements

Create Auth Skill

Guide for adding authentication to TypeScript/JavaScript applications using Better Auth.

For code examples and syntax, see better-auth.com/docs.

Phase 1: Planning (REQUIRED before implementation)

Before writing any code, gather requirements by scanning the project and asking the user structured questions. This ensures the implementation matches their needs.

Step 1: Scan the project

Analyze the codebase to auto-detect:

- Framework - Look for next.config, svelte.config, nuxt.config, astro.config, vite.config, or Express/Hono entry files.

- Database/ORM - Look for prisma/schema.prisma, drizzle.config, package.json deps (pg, mysql2, better-sqlite3, mongoose, mongodb).

- Existing auth - Look for existing auth libraries (next-auth, lucia, clerk, supabase/auth, firebase/auth) in package.json or imports.

- Package manager - Check for pnpm-lock.yaml, yarn.lock, bun.lockb, or package-lock.json.