Worked on the NVIDIA/skyhook repository to deliver a standardized Step execution API, unifying agent step runs and establishing consistent execution semantics across components. Developed the Run() method on the Step interface, introducing supporting structures such as RunConfig and Idempotence to define execution policies and enable safe, repeatable step executions. Refactored existing test suites to validate the new API, focusing on regression safety and test-driven development. This work laid the foundation for the ongoing agent Go rewrite, reducing operational risk and improving maintainability. Utilized Go for backend development, emphasizing API design, JSON serialization, and robust unit testing throughout the process.