During June 2025, Kaine Kominto focused on maintenance work for the team-mirai/policy repository, addressing repository hygiene rather than delivering new features. Kaine identified and removed an empty markdown file, 23_ステップ２経済財政.md, using disciplined Git workflows and version control best practices. This targeted cleanup improved documentation clarity and reduced unnecessary noise for future contributors, streamlining onboarding and code review processes. The work demonstrated attention to documentation governance and repository maintainability, leveraging skills in Git, Markdown, and collaborative codebase management. While the scope was limited to a single bug fix, the change contributed to a cleaner, more reliable development environment.