Use the product-skills Skill.

Help our team plan the next discovery cycle for the returns experience. Use the supplied goal, opportunity tree, assumptions and research evidence to identify the riskiest assumption, set a complete experiment threshold and examine contrary evidence. Deliver the next-cycle brief and a justified continue, pivot or stop decision.

The attached business materials are:
- inputs/assumptions.csv
- inputs/discovery_log.json
- inputs/evidence.json
- inputs/goal.txt
- inputs/merchant.json
- inputs/ost.json

Deliver a complete result.md report that the operations team can read, plus any finished files needed for this task. Keep supporting calculations and evidence with the deliverables. Write the report in English; use the requested target language for customer-facing copy. The business datasets are fictional examples unless the brief explicitly names a live public website.