<invoke name="tool_call"> <parameter name="reasoning">Get column names, types, roles for all tables via metadata; split in two queries due to 50-row cap.</parameter> <parameter name="tool">query_sql</parameter> <parameter name="args">{"sql":"SELECT table_name, column_name, phys_type, semantic_role, min_value, max_value FROM analytics.column_overview WHERE table_name IN ('raw_kaggle','return_kaggle') ORDER BY table_name, column_name","purpose":"List columns, types and roles for raw_kaggle and return_kaggle","source":"raw"}</parameter> </invoke>