Apache Airflow — DAG Authoring

When to Use

Load this skill when the user needs to:

• Write or review Airflow DAGs
• Use TaskFlow API, operators, or sensors
• Build task pipelines, TaskGroups, or dynamic task mapping
• Configure callbacks, pools, XComs, or cross-DAG dependencies
• Apply best practices or debug anti-patterns in DAG code

DAG Definition — Three Styles

1. Context Manager (classic)