Worked on improving the stability of the gruntwork-io/terragrunt repository by addressing a critical issue with the --parallelism flag in May 2026. Implemented input validation and error handling in Go to ensure only positive values are accepted, preventing the command from hanging when set to zero. Developed comprehensive tests to cover both valid and invalid input scenarios, enhancing the reliability of backend automation in CI/CD pipelines. Documented the changes through detailed release notes, increasing release transparency. Focused on backend development practices, the work contributed to more robust automation workflows and reduced operational risk for teams using Terragrunt in production environments.