Worked on the laravel/cashier-stripe repository to address a targeted issue in subscription billing logic, focusing on backend development with Laravel and PHP. Delivered a bug fix that refined how usage data is cleared, ensuring the clear_usage operation is only triggered when flexible billing is not active. This adjustment improved the accuracy and reliability of billing calculations, reducing the risk of mischarges and potential customer disputes. The solution was implemented through a scoped code change within the billing module, demonstrating careful attention to business logic and repository maintenance. No new features were added during this period, with efforts concentrated on bug resolution.