Better Auth

Better Auth is an AI Engineering skill for Claude Code, published by secondsky in claude-skills.

214 stars31 forkson secondsky/claude-skillsAdded 2026/09/04+1% in starsRepository updated 2026/09/03

claude-codeclaude-code-commandsclaude-code-hooksclaude-code-pluginclaude-code-pluginsclaude-code-skillclaude-code-skills

Install in seconds

Install Better Auth

Copy Better Auth into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/secondsky/claude-skills/tree/main/plugins/better-auth/skills/better-auth ~/.claude/skills/better-auth

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/secondsky/claude-skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: plugins/better-auth/skills/better-auth/SKILL.md in secondsky/claude-skills
Installs to: ~/.claude/skills/better-auth
Collection: One of 24 skills cataloged from this repository
Category: AI Engineering — 2970 skills

What Better Auth does

Better Auth integrates Better Auth into TypeScript apps for login, OAuth, 2FA, RBAC, and D1-backed auth flows. Use it when adding authentication or fixing Better Auth adapter and migration issues.

Better Auth is cataloged under AI Engineering on DirSkills. Better Auth comes from a repository tagged claude-code, claude-code-commands, claude-code-hooks, claude-code-plugin and claude-code-plugins.

Documentation

README

Excerpt

better-auth

Status: Production Ready Last Updated: 2026-04-08 Package: better-auth@1.6.0 (ESM-only) Dependencies: Drizzle ORM or Kysely (required for D1 complex use cases; D1 native support available in v1.5+)

Quick Start (5 Minutes)

Installation

Option 1: Drizzle ORM (Recommended)

bun add better-auth drizzle-orm drizzle-kit

Option 2: Kysely

bun add better-auth kysely @noxharmonium/kysely-d1

⚠️ v1.4.0+ Requirements

better-auth v1.4.0+ is ESM-only. Ensure:

package.json:

{
  "type": "module"
}

Upgrading from v1.3.x? Load references/migration-guide-1.4.0.md Upgrading from v1.4.x? Load references/migration-guide-1.5.0.md

⚠️ CRITICAL: D1 Adapter Requirements

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Better Auth

What else does secondsky publish alongside Better Auth?
Better Auth is one of 24 skills that DirSkills catalogs from secondsky/claude-skills, the repository it ships in. Its siblings there include API Authentication, API Changelog & Versioning and API Contract Testing. Each one is a separate skill with its own page in this directory, installs the same way Better Auth does, and is maintained by secondsky in that same repository. The rest of the collection is listed on the secondsky/claude-skills page.
How does Better Auth compare to other AI Engineering skills?
Better Auth ranks #2654 by stars among the 2970 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Better Auth against them. Open each page to compare what they document and how they install.