In March 2025, Evan Moore enhanced the alert causes taxonomy within the mbta/api repository, focusing on backend and API development using Elixir. He refined the Model.Alert structure by updating and expanding the enum for alert causes, enabling more granular and precise reporting of service disruptions. This work aligned the alert taxonomy with downstream analytics systems, supporting faster incident diagnostics and clearer mean time to resolution discussions. Evan’s approach emphasized reliability and clarity in incident data, with thorough documentation of the changes. The depth of the update improved the accuracy of alert reporting, though no major bug fixes were addressed this month.