Kong Gateway 2.6 introduces a new jq plugin for enterprise license holders, enhancing the manipulation of JSON request and response bodies by combining the functionalities of request and response transformer plugins. The jq language enables users to conditionally transform JSON documents based on media type and response code, preventing unnecessary transformations on error responses. Users can configure the jq filter using request_jq_program or response_jq_program options either through the admin API or declarative configuration. The post demonstrates jq's versatility through practical scenarios such as restructuring request bodies for backward compatibility, removing sensitive information from responses, converting JSON data to CSV for spreadsheet compatibility, and transforming temperature units in API responses. These examples highlight jq's potential to address real-world challenges efficiently without the need for significant development effort, emphasizing its utility for agile problem-solving in API management.