Worked on improving verification workflows in the containers/container-libs and containers/image repositories by aligning stub function signatures with their production counterparts. Focused on updating Go stubs in fulcio_cert_stub.go and rekor_set_stub.go to accept slices of public keys, ensuring compatibility with multi-key verification methods. This approach addressed signature-mismatch issues that previously complicated development and testing, resulting in more reliable API interactions across repositories. Leveraged skills in Go development, API design, and code maintenance to reduce debugging time and lay the groundwork for broader key management support. The work emphasized robust stubbing practices to streamline cross-repository verification processes and future enhancements.