In March 2026, Yejin Kim developed a weekly usage visibility feature for the Yeachan-Heo/oh-my-codex repository, introducing a new weekly-limit setting to the default status line. This addition allowed users to monitor their weekly usage directly within the user interface, supporting better planning and transparency. Kim approached the task with a configuration-driven, incremental UI change, ensuring minimal risk during rollout and strong traceability through conventional commits and issue references. The work demonstrated proficiency in TypeScript and full stack development, focusing on practical enhancements to user experience without addressing bug fixes during the period, reflecting targeted, feature-driven engineering depth.