During January 2026, Meuryuuki developed a feature for the strands-agents/sdk-python repository that assigns a unique toolUseId to every tool use within the Gemini model, improving traceability and retrieval of tool-related results. The implementation leveraged Python and async programming, with a focus on backend development and robust unit testing. Meuryuuki ensured that each tool interaction could be distinctly tracked, which enhances observability and auditability for downstream analysis. The work included adding comprehensive tests to verify correct association and preservation of toolUseId, as well as addressing a bug to guarantee consistent unique IDs, reflecting a thoughtful and methodical engineering approach.