Worked on the meteor/meteor repository to enhance the reliability of Windows continuous integration workflows by consolidating and modernizing artifact cleanup processes. Addressed CI flakiness by migrating legacy cleanup steps to a current GitHub Action, improving maintainability and compatibility with evolving CI/CD standards. Introduced a final hard cleanup step using direct PowerShell commands, ensuring that Windows runners start with pristine workspaces and eliminating residual artifacts that could impact build stability. Leveraged skills in CI/CD, GitHub Actions, and Windows Workflow, with PowerShell and YAML as primary languages, to deliver a maintainable solution that accelerates feedback cycles and streamlines debugging for Windows contributors.