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auth-setup

Implement passwordless authentication with WebAuthn and magic links in Rails 8.0.

Updated Jun 9, 2026
Search Tags:#authentication#magic link#passwordless#Rails#WebAuthn
One-click install
npx skills add https://github.com/arthun01/achados-uesc --skill auth-setup-arthun01
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: auth-setup
Source: https://github.com/arthun01/achados-uesc/tree/main/.opencode/skills/auth-setup
Command: npx skills add https://github.com/arthun01/achados-uesc --skill auth-setup-arthun01

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires ActionPack::Passkey, bcrypt, has_secure_token, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the need for a simple, custom authentication system for web applications, providing passwordless authentication with WebAuthn and magic links.

Core Features & Use Cases

  • Custom Passwordless Auth: Offers a passwordless authentication system without the use of Devise.
  • WebAuthn Support: Implements passkey authentication as the primary sign-in method.
  • Magic Links: Provides magic link authentication as a fallback for passwordless login.
  • Session Management: Manages session tokens and user authentication status.
  • Use Case: This Skill can be integrated into web applications requiring secure user authentication, especially in scenarios where password-based authentication is not preferred or is difficult to implement.

Quick Start

Use the auth-setup skill to create a new user account with a magic link.

Frequently Asked Questions about auth-setup

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I implement passwordless authentication in Rails without Devise?▼

Passwordless authentication in Rails without Devise is built using ActionPack::Passkey for WebAuthn passkeys and magic links for fallback login. This approach manages session tokens directly without traditional passwords.

What is a magic link and how does it work for WebAuthn fallback?▼

A magic link is a passwordless login URL sent to a user. This system uses it as a fallback authentication method alongside WebAuthn, allowing secure login when passkey authentication is unavailable or difficult to set up.

Does WebAuthn passkey authentication require Rails 8.0?▼

Yes, WebAuthn passkey authentication with ActionPack::Passkey requires Rails 8.0 or higher. This custom passwordless session management setup depends on ActionPack::Passkey, bcrypt, and has_secure_token to function properly.

What's the best way to add passkey authentication to a web application?▼

The best way to add passkey authentication is implementing WebAuthn as the primary sign-in method with magic links as a fallback. ActionPack::Passkey handles the passkey logic while bcrypt and has_secure_token manage session tokens securely.

Can I use bcrypt for session management in a passwordless auth system?▼

Yes, bcrypt is used alongside has_secure_token for session management in this passwordless auth system. They manage session tokens and user authentication status without traditional password storage or verification.

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