Developed a responsive and configurable prompt sizing feature for the sst/opencode repository, enhancing the terminal user interface by allowing prompt dimensions to adapt dynamically to terminal size or explicit user-defined values. This work focused on improving usability and accessibility for diverse terminal environments, reducing the need for manual adjustments and minimizing support requests. The implementation demonstrated expertise in TypeScript, front end development, and solid.js, with careful attention to configuration-driven design and UI layout tuning. The feature was delivered as a single, traceable commit, reflecting disciplined changelist management and a focus on maintainable, user-centric terminal application development practices.