create-auth-skill

Implement Better Auth authentication layers in TypeScript/JavaScript applications.

Updated Jan 25, 2026
One-click install
npx skills add https://github.com/z4nr34l/agent-setup --skill create-auth-skill-z4nr34l
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: create-auth-skill
Source: https://github.com/z4nr34l/agent-setup/tree/main/claude-code/skills/create-auth-skill
Command: npx skills add https://github.com/z4nr34l/agent-setup --skill create-auth-skill-z4nr34l

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps developers add robust authentication to TypeScript and JavaScript applications using Better Auth, replacing ad-hoc auth logic with a scalable, standards-based solution.

Core Features & Use Cases

  • New project setup: bootstrap a project with authentication scaffolding, including route protection and session handling.
  • Migration and enhancement: audit existing auth flows, plan incremental improvements, and migrate to plugin-based capabilities.
  • Client/server integration: configure server and client components, and wire up routes, sign-in/up flows, and session management.
  • Use Case: imagine starting a new app; you install Better Auth, scaffold auth files, configure providers, and secure routes across your API and UI.

Quick Start

Set up a new TS/JS project and install Better Auth:

  1. Initialize your project (npm init or your framework's starter).
  2. Install the core package: npm install better-auth.
  3. Create server config at lib/auth.ts (or src/lib/auth.ts) and client config at auth-client.ts.
  4. Add route handlers for your framework (Next.js App Router, Express, etc.).
  5. Run migrations and test sign-in flows locally.

Frequently Asked Questions about create-auth-skill

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I add authentication to a TypeScript or JavaScript app with Better Auth?▼

To add authentication to a TypeScript or JavaScript app with Better Auth, you install the core package, create server and client configuration files, add framework-specific route handlers, and run database migrations to secure your API and UI.

What environment variables are required to configure Better Auth?▼

Configuring Better Auth requires setting the BETTER_AUTH_SECRET and BETTER_AUTH_URL environment variables to properly manage server runtime sessions and route handling across your application.

Can I migrate my existing authentication flows to Better Auth?▼

Yes, you can migrate existing authentication flows to Better Auth by auditing your current setup, planning incremental improvements, and transitioning to its plugin-based capabilities for scalable session management.

Does Better Auth work with both server and client integrations in JavaScript?▼

Better Auth works across server and client integrations by requiring you to configure server components at lib/auth.ts and client components at auth-client.ts, wiring up routes and sign-in flows for both environments.

What is the best way to scaffold a new project using Better Auth?▼

The best way to scaffold a new project using Better Auth is to initialize your project, install the package, define server and client configurations, add route handlers for your specific framework, and then test sign-in flows locally.