During December 2024, Duemir enhanced the jenkinsci/jenkins repository by refactoring core UI Jelly scripts to improve documentation clarity and maintainability. Focusing on buildHealth.jelly, buildRangeLink.jelly, and progressiveText.jelly, he replaced commented-out attribute declarations with structured st:documentation tags, aligning the codebase with modern documentation standards. This approach not only streamlined the code but also facilitated better onboarding for new contributors by generating clearer, more accessible documentation. Leveraging his skills in code refactoring and documentation, and working primarily with the Jelly templating language, Duemir delivered a focused feature that addressed maintainability and future-proofing of Jenkins UI components without introducing new bugs.