The summary that trusted itself

Описание и применение

Инструмент автоматически проверяет, что его собственный вывод соответствует записанному артефакту, открывая файл после записи и пересчитывая данные.

Задача

Automated instruments that write artifacts and produce numeric summaries can generate incorrect summaries because the summary may reference the wrong artifact field, leading to undetected drift.

Результат

The self‑check ensures that any discrepancy between the artifact and its summary is detected immediately, preventing silent drift and making the instrument’s output trustworthy.

Рабочий процесс

• Write artifact (CSV/JSON) and numeric summary
• Re‑open the artifact from disk
• Field‑by‑field recount of the artifact
• Compare recount to original summary
• If mismatch: exit with failure code and print both counts
• If match: record self‑check passed in receipt

Доказательства

If the recount disagrees with the summary, the instrument exits with a dedicated failure code and prints both counts — the one it claimed and the one the file says.

Источник