Airflow Operators cheat sheet with Shrividya Hegde

A working reference for the operator and sensor decisions you make while writing DAGs, not a rehash of the API docs.

What's on it:

• Core operators and provider operators, with a decision tree for picking one
• Sensor modes, and a timeline diagram showing how much worker capacity poke, reschedule, and deferrable each burn
• Trigger rules, including none_failed_min_one_success, the one you need when joining branches back together
• TaskFlow vs classic operators, dynamic task mapping with .expand()
• XComs and what not to put in them
• Retries, timeouts, and templating

Written against both 2.x and 3.x, with the Airflow 3 breakages called out where they matter: SLAs removed in favor of Deadline Alerts, SubDAGs gone, execution_date and its variants no longer available, catchup now defaulting to False. If you're planning an upgrade, those four notes alone will save your time.