Worked on the openfoodfacts/open-prices repository to improve API reliability by addressing a schema issue in the OpenAPI specification for paginated endpoints. Focused on correcting the 'items' schema to accurately reflect the actual payload structure, this change prevented client parsing errors and enhanced downstream integration stability. The solution involved careful analysis of the OpenAPI schema and precise updates using Python, ensuring that client applications could reliably paginate through API responses. Documentation and commit messaging were clear and maintainable, supporting future development. This work demonstrated attention to detail in API development and specification management, with a focus on robust, client-friendly integrations.