Use this skill when converting Airflow code that references credentials via Airflow's connection system: any operator/hook kwarg ending in `_conn_id` (conn_id=, aws_conn_id=, snowflake_conn_id=, ssh_conn_id=, slack_conn_id=, gcp_conn_id=, http_conn_id=), any `BaseHook.get_connection(...)` or `Connection` class usage, any `AIRFLOW_CONN_<NAME>` environment variable, or a Secrets Backend (AWS Secrets Manager / Hashicorp Vault) configured for connections. Also covers distinguishing these from `Variable.get()` / `AIRFLOW_VAR_*`, which are non-secret config, not connections. Must be read before finalising any Orchestra YAML with a connection: field converted from an Airflow source.