David Velasco focused on improving the reliability of continuous integration workflows for the IAS-Astrophysics/athenak repository over a two-month period. He addressed issues in the test automation pipeline by ensuring that non-zero exit codes from pytest runs were correctly propagated to CI results, allowing failures to be accurately reflected and reducing the risk of silent regressions. Using Python scripting and CI/CD best practices, David also enhanced test infrastructure by removing unnecessary build directories and improving error logging for test commands. His work deepened the robustness of automated testing, resulting in faster feedback cycles and more dependable error diagnostics for the project.