Manuel Ledesma developed the Alert Scheduling feature for the hyperdxio/hyperdx repository, enabling users to anchor alert evaluations to a specific start time with an optional offset. He updated the alert schema and API validation using TypeScript and Node.js, integrated the new scheduling options into the React-based UI, and ensured backward compatibility when scheduling fields are unset. Manuel also enhanced reliability by implementing end-to-end tests for anchored evaluation windows and pre-start skip behavior. His work addressed the challenge of reducing false positives in alerting, providing more precise control over alert timing and supporting a smoother transition to scheduled monitoring patterns.