Alexandru Marjina developed Kubernetes file path input support for OPA tests in the extenda/actions repository, enhancing the flexibility and usability of policy validation workflows. He updated the action.yml configuration and test bundles to accommodate the new input parameter, ensuring consistent parameter naming across test harnesses. Working primarily with JavaScript and YAML, Alexandru stabilized the test suite by fixing and updating related test fixtures, which improved CI reliability and reduced manual setup. His approach leveraged CI/CD best practices and GitHub Actions, and he collaborated with Copilot to accelerate delivery while maintaining code quality. The work demonstrated focused, in-depth engineering on workflow automation.