Contributed to aws-powertools/powertools-lambda-typescript by enhancing its public API surface, specifically exporting the InferOutput type from the parser module to improve type safety and usability for TypeScript consumers. This update allowed downstream services to reference accurate type definitions directly, reducing integration friction and clarifying typing expectations across the Lambda types library. The work involved close collaboration with other contributors to ensure alignment with the broader typings strategy. Utilizing TypeScript and a focus on type definitions, the contribution improved developer experience by exposing a stable, reliable API, minimizing the need for consumers to infer or duplicate complex types in their integrations.