etl-duckdb

--- name: etl-duckdb description: Load CSV/XLSX into DuckDB with validation and an ETL markdown report --- Instructions: - Run: powershell -ExecutionPolicy Bypass -File .codex/skills/etl-duckdb/scripts/run.ps1 - Output: - data/_artifacts/ops.duckdb - reports/etl_report.md Fail-safe: - If inputs missing, produce only the '以묐떒' table in reports/etl_report.md and exit. Evidence Required: - input_rows, null_cells, duplicated_rows, duckdb_written