Riku Vaahtoranta developed and deployed a centralized pull request label enforcement workflow across 37 Guardian repositories, including guardian/service-catalogue and guardian/frontend. Using GitHub Actions and YAML, Riku automated the requirement for CORE4 labels on all pull requests before merge, standardizing governance and review processes. The solution unified disparate labeling scripts into a reusable automation pattern, reducing manual checks and improving compliance with project standards. By integrating this workflow into each repository’s CI/CD pipeline, Riku enhanced code review efficiency and deployment readiness. The work demonstrated strong DevOps and workflow automation skills, delivering scalable, cross-repository improvements without introducing any new bugs.