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Better auth

Skill georgekhananaev/claude-skills-vault/.claude/skills/better-auth

Better Auth integration guide for TypeScript/JavaScript authentication. Covers server/client configuration, database adapters, session management, plugins, OAuth, and scaffolding auth from scratch. Use when setting up authentication with Better Auth, configuring auth.ts, adding OAuth providers, or creating sign-in/sign-up flows.From its SKILL.md

Install
npx -y skills add georgekhananaev/claude-skills-vault --skill better-auth

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

2 things to look at

  • reads credentialsReads from 1 credential source: `BETTER_AUTH_SECRET`.
  • runs commandsInstructs the agent to run 2 commands, including `npm install better-auth` and 1 more.

SKILL.md

1.6 KB, 290 tokens by cl100k_base, as published. Nobody here has run it

Better Auth Skills

Complete authentication setup and integration guide using Better Auth for TypeScript/JavaScript applications.

Available Sub-Skills

SkillFileUse When
Best Practicesbest-practices-SKILL.mdConfiguring Better Auth, database adapters, sessions, plugins, security
Create Authcreate-auth-SKILL.mdScaffolding auth from scratch, adding login/signup to a project

Quick Reference

Setup

  1. npm install better-auth
  2. Set BETTER_AUTH_SECRET and BETTER_AUTH_URL env vars
  3. Create auth.ts with database + config
  4. Create route handler for your framework
  5. Run npx @better-auth/cli@latest migrate

Supported Frameworks

Next.js (App/Pages Router), SvelteKit, Nuxt, Astro, Express, Hono, SolidStart

Supported Databases

PostgreSQL, MySQL, SQLite, MongoDB (via Prisma, Drizzle, or direct drivers)

Key Plugins

twoFactor, organization, passkey, magicLink, emailOtp, username, admin, apiKey, bearer, jwt, sso

Source

From better-auth/skills.

What ships with it: 2 files

18.1 KB alongside SKILL.md

Keep looking

Skills are one crate of 325,949. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.