Can I use this for general UI or database design?

No, this skill is specifically designed for authentication and payment logic. For general UI or DB work, other specialized skills should be used to ensure focus.

How does the skill ensure payment security?

It enforces the use of provider SDKs to ensure sensitive card data never touches your server, requires Webhook signature verification, and mandates server-side amount validation.

What is the Security Checklist feature?

The Security Checklist is a mandatory quality gate that Claude displays before starting work, ensuring developers confirm protections like CSRF, password hashing, and session security.

Which authentication providers does this skill support?

This skill is optimized for integrating Clerk and Supabase Auth, providing specific implementation patterns for both services.

Auth & Payments Integration

Name: Auth & Payments Integration
Author: Chachamaru127

byChachamaru127

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160

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セキュリティとテスト

Implements secure user authentication and payment processing systems using industry-standard providers like Clerk, Supabase, and Stripe.

This specialized skill empowers Claude to architect and implement robust security layers and financial transactions within your application. It provides structured guidance for integrating authentication services like Clerk and Supabase Auth, alongside comprehensive payment processing through Stripe. By enforcing a strict security checklist—covering password hashing, CSRF protection, and Webhook verification—the skill ensures that high-risk features are developed with production-grade safety standards and best practices in mind, mitigating common vulnerabilities from the start.

主な機能

01Secure Stripe payment and subscription workflow implementation

02Seamless integration with Clerk and Supabase Auth for user management

03Server-side validation for payment amounts and Webhook signature verification

04160 GitHub stars

05Strict adherence to security best practices like CSRF protection and HTTPOnly cookies

06Automated security gate with a comprehensive checklist for authentication and data handling

ユースケース

01Adding a subscription-based billing system to a SaaS application using Stripe

02Securing a backend API with proper rate limiting, password hashing, and CSRF defenses

03Implementing multi-provider social login and session management via Clerk or Supabase

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add chachamaru127/claude-code-harness auth

For use in Claude.ai and ChatGPT

Download Skill