Better Auth email and password skill for Claude Code: verification, reset and hashing

Helps Claude set up Better Auth email and password login: verification emails, password reset and hashing.

Installs: 48.8K; on skills.sh
Stars: 228; on GitHub
Updated: Oct 2026; last repo commit

This skill makes Claude configure email and password login in Better Auth. Its description covers email verification, password reset flows, password policies and custom hashing algorithms.

The quick start has five steps, from enabling emailAndPassword to running npx auth@latest migrate and testing that a verification email is sent. It bundles no scripts.

Good for

Developers adding email sign-up and sign-in with Better Auth
Teams that need email verification and password reset flows
Anyone customizing password rules or hashing

Install email-and-password-best-practices

Claude Code

Copy this prompt.

Install the email-and-password-best-practices skill in Claude Code. Run this command:

npx skills add https://github.com/better-auth/skills --skill email-and-password-best-practices

Then check that it loaded and tell me how to use it.

2
Paste it into Claude Code. It shows the change and asks before running it.

Requires Node.js.

From its listing on skills.sh. Source.

What's in the skill

When it loads

Configure email verification, implement password reset flows, set password policies, and customise hashing algorithms for Better Auth email/password authentication. Use when users need to set up login, sign-in, sign-up, credential authentication, or password security with Better Auth.

Sections in SKILL.md

Quick Start
Email Verification Setup
Requiring Email Verification
Client Side Validation
Callback URLs
Password Reset Flows
Security Considerations
Sending the Password Reset
Password Hashing
Custom Hashing Algorithm

Key facts

Author: Better Auth (better-auth org)
Repository: better-auth/skills
Installs on skills.sh: 48,817 (Nov 2, 2026)
GitHub stars (repo): 228 (Nov 2, 2026)
Last repo commit: Oct 19, 2026
Files: 1 file (SKILL.md only)

What it includes

Enable email/password, set verification and reset senders, migrate, then test sign-up.
Step 4 runs npx auth@latest migrate.
Runs code · Quick start (5 steps)
Define sendVerificationEmail, optionally require verification before sign-in.
Email verification setup
How the client validates input and which callback URLs to set.
Client-side validation and callback URLs
Sending the reset email, plus a security considerations list.
Password reset flows
Default behavior and how to plug in a custom hashing algorithm.
Password hashing

From the official docs

Permissions

Low risk

The skill holds instructions, but its setup step runs a CLI command that can change your database schema. Try it on a dev database first.

What it can do

Read your data
Create and change things
Delete things
Read-only mode

Watch out for

Migrate commands change your database
The Quick Start runs npx auth@latest migrate, which changes your database schema. Run it against a dev database first. github.com

Technical details

Talks to	npm registry (npx auth@latest)
Scopes	Database connection string (yours)

Questions

How do I install it?

Use the install box above. It installs only email-and-password-best-practices, not the other five skills in the repo.

Which Better Auth skill should I install?

The better-auth/skills repo has six: best-practices (setup and config), create-auth (planning and scaffolding), security, emailAndPassword, organization and twoFactor. Start with create-auth for a new project and best-practices for config questions, then add the topic skill you need.

Does it send emails itself?

SKILL.md has you define sendVerificationEmail and sendResetPassword functions yourself, so you supply the email provider.

Can I switch the password hashing algorithm?

SKILL.md shows how to supply custom hash and verify functions, with an Argon2id example. Its note says users whose passwords were hashed with the old algorithm cannot sign in after a switch on an existing system, so plan a migration.

Is it safe to install?

The folder is one Markdown file with no scripts, so installing adds instructions only. The setup step runs a migrate command that can change your database, so use a dev database first.

Does it work in the Claude app or Codex?

The install box lists a zip upload for the Claude app and a skills folder for Codex. The repo has no README, so the author does not say which clients it supports.

Information

updated Nov 2, 2026

Repository: better-auth/skills
Folder: better-auth/emailAndPassword

better-auth/skills skills.sh

Sources

Docs, issue trackers and discussions this page is built from.

Show all 5

SKILL.md · github.com
skills.sh listing · skills.sh
Repository · github.com
Using skills in Claude · support.claude.com
Claude Code skills · code.claude.com