During June 2025, Sema Cilingir focused on stabilizing the CI pipeline for the extenda/shared-workflows repository by addressing a persistent command-not-found error in the GitHub composite action responsible for running API tests. Sema diagnosed the issue with the Newman invocation and resolved it by providing the correct argument to the newman run command, ensuring that API tests executed reliably within GitHub Actions. This work improved CI reliability and reduced deployment feedback delays. The solution demonstrated practical expertise in CI/CD processes, GitHub Actions, and YAML, reflecting a targeted and effective approach to maintaining robust automated testing workflows in shared infrastructure.