Ashir Amin refactored the Slack notification system for the WordPress/openverse repository, focusing on improving reliability and maintainability across Apache Airflow DAGs. By removing the dag_id parameter from the notify_slack function and centralizing DAG ID retrieval, Ashir streamlined the integration process and reduced the risk of misconfiguration. The update required modifying all DAG calls to pass a DAG object, which simplified the API and made cross-DAG Slack notifications more robust. This work, implemented in Python and leveraging Airflow’s DAG patterns alongside the Slack API, addressed a brittle usage pattern and resulted in a cleaner, more maintainable notification workflow.