Sean enhanced the strands-agents/sdk-python repository by implementing support for passing additional keyword arguments as dictionaries to FastAPI and Starlette constructors, improving configurability and server customization for Strands deployments. He updated core methods and documentation to align guidance with the new implementation, ensuring consistency and reducing setup friction for users. Sean also contributed to strands-agents/docs by expanding advanced server customization examples, demonstrating the new dict-based approach. His work involved backend development, documentation, and unit testing, primarily using Python and YAML. The changes increased deployment flexibility and maintainability, reflecting a focused and well-integrated engineering effort within a one-month period.