data-freshness
Validate downloaded partner CSV/Parquet feeds locally after SFTP/S3, then alert on missed rolling receipts.
Business-calendar-aware data freshness checks: schedules, holidays, grace windows, and explainable verdicts for DuckDB, PostgreSQL and dbt.
A vendor-neutral OpenTelemetry semantic convention for data staleness (data freshness), plus a Python SDK and Go Collector components.
