Oria Chiuan contributed to the OpenXiangShan/riscv-isa-sim project by focusing on code quality improvements within the RISC-V instruction definitions. Using C and RISC-V Assembly, Oria addressed a bug related to comment formatting, standardizing the spacing around commas in instruction mnemonics to align with established coding style guidelines. This cleanup enhanced the readability and maintainability of the codebase, making it easier for future contributors to review and understand the instruction set documentation. The work demonstrated attention to detail in embedded systems development and strengthened the repository’s change tracking by providing clear, descriptive commit messages for the implemented fixes.