Use the multi-channel-listing-sync Skill.

We need consistent product listings for Shopify, Amazon and eBay from one approved product record. Prepare each channel's title, bullets, description, attributes, category suggestion and image-alt copy. Preserve capacity, dimensions, care and shipping restrictions; supply a comparison table and a clear list of fields still needed before publishing.

The attached business materials are:
- inputs/brief.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.