Worked on stabilizing the CurioAuth signing process within the filecoin-project/curio repository, focusing on backend development and error handling using Go. Addressed a critical bug by migrating the sptool deal submission workflow to the mk20 client, which eliminated unnecessary authentication digest logic and consolidated the submission path. This approach reduced failure scenarios and improved reliability for developers interacting with the system. The work involved API integration and the removal of an exported mk20 authentication digest helper, simplifying the codebase and enhancing security. The changes resulted in a more robust and maintainable authentication workflow, supporting ongoing improvements to the project’s infrastructure.