Worked on the argoproj/argo-workflows repository, focusing on both documentation and backend reliability. Enhanced the Argo Workflows documentation by updating YAML examples and migration guides to promote the hooks.exit pattern for exit handlers, reducing reliance on deprecated onExit usage and helping users avoid misconfiguration. On the backend, addressed a bug in parameter expansion by fixing escape character handling in withParam and withItems, ensuring correct processing of complex workflow inputs. Strengthened test coverage to validate these changes and prevent regressions. Utilized Go and YAML, applying skills in workflow orchestration, backend development, and testing to improve user experience and reliability.