Contributed to the newrelic-python-agent repository by enhancing chat functionality and improving asynchronous error handling. Developed features for the LangChain library, including improved timestamp management, default message roles, and support for Bedrock streaming, all validated with comprehensive Python tests to ensure reliability and maintainability. Addressed a bug in AsyncGeneratorProxy by conditionally applying the ErrorTraceWrapper, which streamlined error tracing in asynchronous workflows and reduced unnecessary code complexity. Focused on backend development and API design, emphasizing code quality through linting and expanded test coverage. The work delivered robust, well-tested solutions that support long-term stability and maintainability of the codebase.