During this period, contributed to the ethereum/consensus-specs repository by performing targeted code cleanup and documentation updates. Focused on removing the unused is_previous_epoch_justified function and its related documentation from phase0/fork-choice.md, the work simplified the codebase and reduced potential confusion for future contributors. The cleanup was implemented using Markdown and code review best practices, ensuring that the removal maintained functional parity and adhered to project conventions. By eliminating dead code and associated documentation, the changes lowered long-term maintenance overhead and aligned with established standards for clarity and maintainability, demonstrating attention to detail in codebase stewardship and documentation quality.