Can it handle mid-cycle plan changes?

Yes, it includes a proration calculator that automatically adjusts charges when users upgrade, downgrade, or change seat counts during a billing period.

Does this skill support different billing intervals?

Yes, it includes logic for monthly, annual, quarterly, weekly, and custom usage-based billing cycles.

How does the dunning management system work?

The skill provides a configurable retry schedule and notification workflow to automatically recover failed payments and reduce involuntary churn.

Does it integrate with specific payment processors?

The code patterns are designed to be compatible with major providers like Stripe, focusing on the core business logic and state management required for robust billing systems.

Billing & Subscription Automation

Name: Billing & Subscription Automation
Author: Krosebrook

byKrosebrook

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E-commerce Solutions

Builds and manages sophisticated automated billing systems for SaaS subscriptions, recurring payments, and complex invoicing lifecycles.

This skill empowers developers to implement robust billing architectures within the Claude Code environment. It provides specialized logic for managing the entire subscription lifecycle, from initial trial setup to active state transitions and eventual cancellation. By incorporating sophisticated dunning management for failed payments, precise proration for mid-cycle plan changes, and region-specific tax calculations, this skill ensures financial consistency and operational efficiency for modern web applications and SaaS platforms.

Key Features

01End-to-end subscription lifecycle management (Trial, Active, Past Due, Canceled)

02Multi-jurisdictional tax calculation supporting VAT, GST, and US Sales Tax

03Automated dunning workflows for failed payment recovery and retry logic

04Dynamic invoice generation with support for usage-based and flat-rate billing

051 GitHub stars

06Proration calculators for seamless plan upgrades, downgrades, and seat changes

Use Cases

01Managing complex billing adjustments for enterprise seat-based licensing

02Implementing a multi-tier SaaS subscription model with free trials

03Automating payment recovery processes to reduce churn and increase revenue

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add krosebrook/source-of-truth-monorepo billing-automation

For use in Claude.ai and ChatGPT

Download Skill