Use the ad-creative Skill.

Review our previous ad results, calculate CTR, conversion rate, CPA and ROAS using consistent denominators, then write new ad variants around capacity, transparent pricing and care fit. Deliver complete copy and an importable CSV, respect platform character limits and identify which hypothesis each variation tests.

The attached business materials are:
- inputs/brief.json
- inputs/evidence.md
- inputs/merchant.json
- inputs/performance.csv

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.