Use the email-campaign-writer Skill.

Plan our next 30 days of lifecycle email. Write all 14 messages with subjects, preview text, complete bodies and a single CTA each. Coordinate welcome, cart recovery, post-purchase and newsletter messages; define frequency caps, purchase exits and support exclusions. Use our supplied historical benchmarks to set realistic review priorities.

The attached business materials are:
- inputs/brief.json
- inputs/supplemental-benchmarks.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.