{
    "action": "final",
    "content": "**No column has missing values.** The null-count query over `raw.semi_conductor_se` (422,729 rows) returned 0 nulls for every column, so each column is 0% missing:\n\n- Identifiers and labels: `_unnamed_0`, `company_name`, `stock_name`\n- Date: `date`\n- Price and volume measures: `open`, `high`, `low`, `close`, `volume`\n- Ingestion metadata: `_ingestion_timestamp`, `_batch_id`, `_source_file`, `_source_system`\n\nThis only covers true NULLs. Placeholder values such as 0 in `volume` or empty strings in text columns would not show up here. The check also says nothing about whether every stock has a row for every trading day. If you need either of those, I can run them next."
}