Product Listing Optimizer
Rewrites the listing without inventing a single specification
- 7hard rules
- Things it must never do, enforced in every run
- 4handover rules
- Conditions where it stops and gives the work to a person
- 10output fields
- A structured result, not a paragraph you have to re-read
- ≤4steps per run
- Bounded work: at most 3 tool calls, enforced by the runtime
Read-only by design. This agent has no path to sending, spending, publishing or committing anything. Where that limit is the product, removing it would remove the reason to trust the output.
Overview
AI copy tools write fluent product descriptions, which is exactly the danger: fluency invents. "Water-resistant to 50m", "recycled cotton", "ships in 24 hours" — a model will write any of those because they fit the sentence, and each is a return, a chargeback, or an unsubstantiated claim regulators take seriously.
This agent writes only from the attributes you supply. Anything it cannot support, it leaves out and tells you it left out. It reports which missing attributes are costing you conversions — the size chart, the material, the compatibility list buyers actually search for.
It also writes for the channel: a marketplace title has a character limit and a keyword convention, and a listing written for one reads badly on the other. And it flags claim types that carry legal weight in the EU and UK — health, environmental, and comparative claims — rather than quietly polishing them.
Benefits
Fewer returns
Most preventable returns start with a listing that promised something the product does not do.
A whole catalogue, consistently
The same structure and bar across every product.
Claims you can defend
Nothing in the copy that you cannot evidence.
What it does
Never invents a specification
Writes from the attributes you gave it. Anything else is reported as missing, not filled in.
Reports the claims it removed
The list of things it would not say is more useful than the copy itself.
Flags regulated claims
Health, environmental and comparative claims are marked for review rather than polished, because in the EU and UK they need substantiation.
Writes for the channel
Title limits, keyword conventions and bullet structure differ per marketplace, and it respects them.
Names the attributes you are missing
The size chart or compatibility list buyers search for and your listing does not have.
What this changes
What this changes about your week
- It takes over
- Writing listings from a supplier spec sheet, for a whole catalogue.
- Done today by
- Whoever runs the store, one product at a time.
- How often
- Every product, and every new channel.
- Typical manual effort
- A good listing is twenty minutes; a catalogue of four hundred is a month.
Why E-commerce in particular. Most preventable returns start with a listing that promised something the product does not do. This one cannot invent a specification.
Runs unattended
Started by you or by an event, and it finishes on its own. Nothing waits for someone to be at a desk.
The same standard every time
The two-hundredth item is held to the bar the first one was. Consistency is the part people cannot sustain.
It cannot act on its own
Product Listing Optimizer has no path to sending, spending or committing. That limit is why its output is safe to act on.
How it runs
This agent runs server-side through the PROMIVO runtime. Each run is logged step by step and every tool call is permission-checked before it executes.
- 1InputValidated against the agent input schema
- 2Modelclaude-sonnet-5 with automatic fallback
- 3Toolsextract_structured_data
- 4PermissionsRuns READ actions automatically; anything higher waits for approval
- 5OutputStructured result matching the output schema
- 6LoggingTokens, duration and every step recorded
Demo
Demo dataIllustrative sample output, abridged.
Input
{
"channel": "own-store",
"attributes": {
"closure": "YKK zip",
"capacity": "38L",
"material": "cotton canvas"
},
"productName": "Canvas weekend bag"
}Output
{
"title": "38L Cotton Canvas Weekend Bag with YKK Zip",
"bullets": [
"38 litres — enough for two or three nights",
"Cotton canvas body",
"YKK zip closure"
],
"escalate": false,
"disclaimer": "Written only from the attributes supplied. No specification, material, measurement, certification, compatibility or delivery time has been added, and no health, safety, environmental or competitor comparison is claimed.",
"removedClaims": [
{
"claim": "Water-resistant",
"reason": "No coating or rating supplied. Canvas alone does not support it."
},
{
"claim": "Fits a 16-inch laptop",
"reason": "No internal dimensions supplied."
}
],
"missingAttributes": [
{
"attribute": "Internal dimensions",
"whyItMatters": "The most common pre-purchase question for luggage."
},
{
"attribute": "Weight",
"whyItMatters": "Decides cabin suitability for many buyers."
}
]
}Requirements
Integrations
No integrations required.
Before you start
- The product's real attributes
- The channel you are writing for
- Requires the Starter plan or higher
Use cases
Launching a range
Turn a supplier spec sheet into listings for every channel.
Fixing a poor performer
See whether the listing is the reason it does not sell.
Expanding to a new marketplace
Re-cut existing listings to that channel's rules.
Pricing
Starter
Billed monthly through your PROMIVO subscription. Cancel at any time.
Runs consume your plan allowance for agent executions and tokens. See plan limits
FAQ
Why does it leave things out?
Because it was not told them. A description that states a material, a certification or a delivery time you never supplied is a claim you would have to defend, and you did not write it.
Does it check my claims are legal?
No. It flags claim types that commonly require substantiation so a person can check them. It does not interpret advertising law, and says so.
Can it publish to my store?
No. It returns copy for you to review and publish. It has no write access to any channel.
Reviews
Reviews open once customers have run this agent.
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