Developed a robust HTTP transport integration and API enhancements for the modelcontextprotocol/rust-sdk repository, focusing on improving reliability and usability for SDK users. Leveraged Rust and Cargo to make Reqwest the default HTTP client for both transport-streamble-http-client and transport-sse-client features, enabling better performance and flexibility. Introduced feature flags to allow configurable client selection and updated documentation to improve onboarding and discoverability. Enhanced error handling and added convenience initializers, reducing boilerplate and simplifying client setup. The work emphasized maintainability and user experience, with all changes tracked in a single feature commit and no major bugs addressed during the development period.