Worked on stabilizing attachment processing in the cap-js/attachments repository by addressing a critical crash in the attachment handling path. The solution involved introducing defensive programming techniques, such as optional chaining and explicit checks for undefined or null values, to ensure that requests lacking attachment data no longer caused runtime errors. This backend improvement, implemented using JavaScript and Node.js, enhanced the reliability of the attachment pipeline across multiple services. The changes were aligned with the cds.ApplicationService attachments feature, ensuring safe processing of POST and other actions without attachments, and a pull request was prepared to improve overall production stability.