Agent Skills: mandoline

Transforms SPSS files, CSVs, and spreadsheet dumps into self-documenting BigQuery tables. Load BEFORE ingesting raw data — invoke first when you see opaque column names (S1, Q1r3), numeric codes, or empty BQ descriptions. Triggers on 'make this data analysis-ready', 'build a clean BQ table', 'load this SPSS file', 'enrich this table', 'process this codebook'. (user)