Product Description Prompt Generator

Why this product description prompt works

A product description has two jobs: help the right customer decide quickly, and avoid promises you cannot keep. Generic AI prompts tend to fail at the second job. Ask for "a product description for a backpack" and you may get "fully waterproof", "lifetime warranty" or "loved by thousands", none of which you told it.

This builder separates facts from style. The facts field is labelled "use only these", and the prompt explicitly forbids invented specifications, certifications, reviews and guarantees. If something important is missing, such as dimensions or care instructions, the AI is asked to list it as a question rather than guess.

The ideal customer field is what turns features into benefits. "540 g" means little on its own; for a commuter who also hikes it means "light enough that you forget it is on your back." The platform field matters too: an Amazon listing leans on scannable bullets, while a printed catalogue needs tighter prose.

The avoid field is your safety net for wording that is legally or factually risky in your market, like "waterproof" for a product that is only water-resistant.

Worked example

Say you sell a daypack in a Shopify store and want a description that does not overpromise. These are the inputs:

Product name

Trailhead 20L Daypack

Category

hiking backpack

Where will it be published?

a Shopify store

Features and facts

20 litre capacity; Weighs 540 g; Recycled nylon with a water-resistant coating; Padded laptop sleeve fits up to 15 inches; Two side pockets for 1 litre bottles

Ideal customer

weekend hikers who want one bag for the trail and the commute

Tone

Direct and concise

Length

Medium (100-150 words)

Avoid

the word "waterproof" (it is only water-resistant)

The builder turns these inputs into the following prompt. Load it into the form above with the Shopify daypack example chip and change anything you like.

You are a senior e-commerce copywriter who writes product descriptions that are accurate, scannable and persuasive.

## Task
Write a product description for: Trailhead 20L Daypack (hiking backpack).
Where it will be published: a Shopify store.

## Features and facts (use only these)
- 20 litre capacity
- Weighs 540 g
- Recycled nylon with a water-resistant coating
- Padded laptop sleeve fits up to 15 inches
- Two side pockets for 1 litre bottles

## Ideal customer
weekend hikers who want one bag for the trail and the commute

## Words, claims or topics to avoid
the word "waterproof" (it is only water-resistant)

## Requirements
- Tone: Direct and concise
- Length: Medium (100-150 words)
- Turn each feature into a concrete benefit for the ideal customer.
- Start with a one-sentence hook that names the main benefit.
- Do not invent specifications, certifications, reviews or guarantees. If an important detail is missing, list it as a question at the end.

## Output format
1. A product title (under 80 characters).
2. A short opening paragraph.
3. 3-6 benefit-led bullet points.
4. A closing line that invites the purchase.
5. Open questions, if any.

This page shows only the prompt. The answer depends on the AI tool you paste it into, so always review the result before you use it.

Tips to improve your results

• Include numbers wherever they are true: weight, size, capacity, compatibility.
• Describe one ideal customer, not everyone. Specific copy converts better than broad copy.
• Use the avoid field for claims your legal team or marketplace rules do not allow.
• Generate two tones and compare them on a real product page before choosing.
• Reuse the same prompt for a whole product range so the voice stays consistent.