Worked on the Telefonica/mistica-design repository to enhance CI/CD reliability for design token synchronization across mistica-web, mistica-ios, and mistica-android. Focused on addressing a silent failure risk in the sync-design-tokens.yml workflow by modifying YAML configuration and GitHub Actions to enforce explicit error handling. Introduced the -f flag to curl commands, ensuring that workflow dispatch events fail visibly when curl encounters errors, which improved incident visibility and reduced undetected failures. Utilized skills in CI/CD and GitHub Actions, with a strong emphasis on YAML scripting, to deliver a targeted bug fix that increased cross-repository workflow robustness and maintainability.