During September 2025, JJ Joy developed a Fluent Builder API for the ServiceResolvedConditionKeysTrait within the smithy-lang/smithy repository. This work focused on reducing boilerplate and improving code readability by implementing the Builder Pattern in Java, allowing developers to construct condition-key resolution traits more intuitively. JJ Joy also created comprehensive unit tests to ensure the builder’s reliability and facilitate seamless integration into service configurations. The approach emphasized trait implementation and Git-based traceability, with all changes documented in a key commit. The resulting feature enhanced developer experience by streamlining usage and increasing confidence in the correctness of condition-key resolution logic.