Making things findable and clear.
A PRODUCT DESCRIPTION
"Write a description for [product]. Buyer: [who and why]. Specifications: [data]. Around eighty words. Include size, materials and contents. Answer the question that would prevent a purchase. No superlatives."
A SERVICE DESCRIPTION
"Write a description of [service]. Customer: [who needs it]. Cover what it involves, how long it takes, what it costs roughly, and what happens first. Plain language."
A CATEGORY PAGE
"Write 150 words for a category page covering [category]. Explain what it includes and how to choose between options. Useful, not promotional."
A COMPARISON
"Write a short comparison of [option A] and [option B] for a customer deciding between them. Here are the facts: [supply]. Be honest about which suits whom."
A SIZING OR FIT GUIDE
"Write a guide explaining how to choose the right size, for a customer ordering online without seeing the item."
WHAT TO NEVER GENERATE
Measurements, materials, compatibility, availability.