Worked on maintaining CI reliability for the iree-org/iree repository by addressing a machine outage that impacted the MI250 workflow. Implemented a temporary safeguard using YAML configuration to disable the affected workflow, preventing cascading CI job failures and reducing noise in test results. Documented the change with clear comments and a revert plan to ensure maintainability and facilitate a quick rollback once the machine became operational. Focused on DevOps practices and CI/CD processes, the work preserved engineering throughput during the incident and provided an auditable link to the related issue, supporting effective incident response and ongoing CI system stability.