During February 2025, Shijie Tu focused on enhancing code readability and maintainability in the hyperledger-cacti/cacti repository. He delivered targeted code refactoring by updating asset-related function names within code comments, clarifying their intent and reducing ambiguity for future contributors. Working primarily with Go, he applied disciplined naming conventions and improved documentation to support easier onboarding and code reviews. Although no major bug fixes were introduced, his efforts addressed long-term maintenance risks by making asset-related logic more transparent. The work demonstrated a methodical approach to code quality, emphasizing documentation improvement and refactoring as key skills in the context of blockchain development.