Toshifumi Kiyono focused on improving the maintainability and security of the increments/qiita-cli repository over a two-month period. He upgraded the project’s minimum Node.js requirement to version 20.0.0, aligning the runtime with current security standards and enabling the use of newer language features. Kiyono also updated the README documentation, clarifying prerequisites to streamline onboarding and reduce support overhead. Additionally, he addressed a documentation bug by correcting a grammatical error in the Japanese README, enhancing clarity and professionalism. His work emphasized CI/CD best practices and thorough documentation, demonstrating a methodical approach to incremental, quality-driven engineering improvements using Markdown and YAML.