Apache Airflow MCP Server

Return task metadata, config, attempt summary, optional rendered fields, and UI URLs.

Parameters

• instance | ui_url: Target selection (URL precedence)

• dag_id, dag_run_id, task_id: Required identifiers (unless resolved from ui_url)

• include_rendered: When true, include rendered template fields (truncated using max_rendered_bytes)

• max_rendered_bytes: Byte cap for rendered fields payload (default 100KB; accepts int/float/str, coerced to positive int, fractional values truncated)

Returns

• Response dict: { "task_instance": {...}, "task_config": {...}, "attempts": {...}, "ui_url": {...}, "request_id": str, "rendered_fields"?: {...} }

Notes

• attempts.try_number is the authoritative input for airflow_get_task_instance_logs.

• Rendered fields include bytes_returned and truncated metadata.

• Sensors increment try_number on every reschedule, so treat it as an attempt index; the derived retries counters are heuristic.