Over a two-month period, contributed to hey-api/openapi-ts by refactoring the OpenAPI TypeScript client, enhancing error handling for Axios requests, and updating tests and snapshots to ensure reliability and maintainability. Improved request serialization, client configuration, and authentication, resulting in clearer error propagation and reduced debugging time for network and 404 scenarios. In parallel, strengthened developer onboarding for the Astro framework by clarifying routing and response handling documentation in withastro/astro and ArmandPhilippot/astro-docs. Leveraged TypeScript, JavaScript, and technical writing skills to deliver robust API client improvements and actionable documentation updates that streamline development and reduce support overhead.