SKILL verified MIT Self-run

Better Auth

Name: Better Auth
Availability: InStock
Author: georgekhananaev

skill-georgekhananaev-claude-skills-vault-better-auth · by georgekhananaev

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.

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Install

$ agentstack add skill-georgekhananaev-claude-skills-vault-better-auth

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

✓ Prompt-injection patterns
✓ Secret / credential exfiltration
✓ Dangerous shell & filesystem operations
✓ Untrusted network calls
✓ Known-malicious package signatures

What it can access

✓ Network access No
✓ Filesystem access No
✓ Shell / process execution No
✓ Environment & secrets No
✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

✓ Security review passed

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● 3mo ago

Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

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About

Better Auth Skills

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

Available Sub-Skills

| Skill | File | Use When | |-------|------|----------| | Best Practices | [best-practices-SKILL.md](best-practices-SKILL.md) | Configuring Better Auth, database adapters, sessions, plugins, security | | Create Auth | [create-auth-SKILL.md](create-auth-SKILL.md) | Scaffolding auth from scratch, adding login/signup to a project |

Quick Reference

Setup

npm install better-auth
Set BETTER_AUTH_SECRET and BETTER_AUTH_URL env vars
Create auth.ts with database + config
Create route handler for your framework
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.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Author: georgekhananaev
Source: georgekhananaev/claude-skills-vault
License: MIT
Homepage: https://www.npmjs.com/package/claude-skills-vault

Install and usage instructions live in the source repository linked above.

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Versions

v0.1.0 Imported from the upstream source.