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.