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mcp/skillhub

Agent Skill

Create Auth skill

create-authbetter-auth/skillsbetter-auth/create-auth/SKILL.md

Scaffold and implement authentication in TypeScript/JavaScript apps using Better Auth. Detect frameworks, configure database adapters, set up route handlers, add OAuth providers, and create auth UI pages. Use when users want to add login, sign-up, or authentication to a new or existing project with Better Auth.

224

always on

63 tokname + description

once used

3,595 tokSKILL.md body

bundled files

0

repo stars

224GitHub

Install the Create Auth skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/better-auth/skills --skill create-auth

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/better-auth/skills.git /tmp/skills
mkdir -p ~/.claude/skills
cp -R /tmp/skills/better-auth/create-auth ~/.claude/skills/create-auth

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description63 tok
When the agent uses itThe SKILL.md instructions3,595 tok
Only if openedNo bundled files—

Until it is used, create-auth costs about 22× less than the median MCP server we measured (1,362 tokens on every turn). Installing all 6 skills from better-auth/skills would load 381 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • Create Auth Skill
  • Phase 1: Planning (REQUIRED before implementation)
  • Step 1: Scan the project
  • Step 2: Ask planning questions
  • Step 3: Summarize the plan
  • Phase 2: Implementation
  • Installation
  • Environment Variables
  • Server Config (auth.ts)
  • Client Config (auth-client.ts)
  • Route Handler Setup
  • Database Migrations
  • Database Adapters
  • Drizzle + PostgreSQL Setup
  • Drizzle Config (drizzle.config.ts)
  • Common Plugins
  • Auth UI Implementation
  • Security Checklist
  • Troubleshooting
  • Resources

More skills from better-auth/skills

All skills in this repo
  1. better-auth-best-practicesbetter-auth/skills

    Configure Better Auth server and client, set up database adapters, manage sessions, add plugins, and handle environment variables. Use when users mention Better Auth, betterauth, auth.ts, or need to set up TypeScript authentication with email/password, OAuth, or plugin configuration.

    125k61 tok idle · 1,997 in use
  2. better-auth-security-best-practicesbetter-auth/skills

    Configure rate limiting, manage auth secrets, set up CSRF protection, define trusted origins, secure sessions and cookies, encrypt OAuth tokens, track IP addresses, and implement audit logging for Better Auth. Use when users need to secure their auth setup, prevent brute force attacks, or harden a Better Auth deployment.

    22470 tok idle · 2,551 in use
  3. email-and-password-best-practicesbetter-auth/skills

    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.

    22457 tok idle · 1,307 in use
  4. organization-best-practicesbetter-auth/skills

    Configure multi-tenant organizations, manage members and invitations, define custom roles and permissions, set up teams, and implement RBAC using Better Auth's organization plugin. Use when users need org setup, team management, member roles, access control, or the Better Auth organization plugin.

    22461 tok idle · 2,428 in use
  5. two-factor-authentication-best-practicesbetter-auth/skills

    Configure TOTP authenticator apps, send OTP codes via email/SMS, manage backup codes, handle trusted devices, and implement 2FA sign-in flows using Better Auth's twoFactor plugin. Use when users need MFA, multi-factor authentication, authenticator setup, or login security with Better Auth.

    22469 tok idle · 1,859 in use