Skill market 2 skills

Two periods of operating data plus this period's action list go in; five things come out: metric-change attribution with hypotheses still to be validated, threshold alerts with a troubleshooting order, a one-page three-part review, three experiments with pass / fail / negative decision lines, and reusable lessons.

Run one returns report through three outputs: six root-cause classes grouped by what you can actually fix (size / not as described / damage / expectation gap / logistics / other), the 8 costs behind every single return with an addition formula you can do by hand, and field-level edits telling you which part of the listing to change