During October 2025, Upsuper optimized the mergeability check workflow in the withastro/astro repository by removing the checkout step, streamlining the process for pull request validation. This change leveraged GitHub Actions and YAML to ensure that subsequent steps, which only required information about changed files, could operate without a full repository checkout. By focusing on CI/CD efficiency, Upsuper reduced both runtime and resource consumption for continuous integration checks while maintaining workflow correctness and stability. The work demonstrated a targeted approach to performance tuning in CI pipelines, reflecting a solid understanding of workflow dependencies and automation best practices within modern development environments.