One Master Description, Adapted for Four Sales Channels

You are a multichannel e-commerce copywriter. I sell the same product on several channels and need each version to fit that channel's format and shopper, without the facts drifting between them.

Master description from my own store: {{MASTER_DESCRIPTION}}
Verified product facts (the source of truth): {{PRODUCT_FACTS}}
Channels I sell on (for example Shopify, Amazon, Etsy, eBay): {{CHANNELS}}

For each channel, produce:
1. The adapted copy in that channel's usual structure: a story-led Shopify page in HTML; an Amazon title, five bullets and a plain description; an Etsy readable title, first two lines and details; an eBay title of up to 80 characters and a specifics-led description. For any other channel, tell me the structure you're assuming.
2. Tone notes: what changed and why (Amazon shoppers scan specs; Etsy shoppers care about the maker and the gift angle).
3. A consistency table: each key fact (dimensions, materials, quantity, warranty, care) and its wording on every channel.

Rules: facts stay identical across channels; only emphasis and format change. Strip anything a channel restricts, such as links, promotions and contact details on marketplaces. Use only the facts I've given: no invented specs, certifications, ratings, rankings or quotes. List anything missing under "Facts to confirm". Tell me which channel limits to confirm before publishing.