Luna
A business assistant for my wife's jewelry shop. More time making things, less time maintaining a spreadsheet.
Architect & engineer
- products → components
- Tracks
- online + in person
- Sales channels
- 0
- Forms she fills
- my wife
- Built for
The spreadsheet behind my wife's business kept growing. Tracking stock and writing invoices were taking time away from designing and making jewelry.
Start with the stockroom
The underlying platform, Wonder Objects, tracks finished pieces and the components they're made from. It follows materials from suppliers through assembly to sales online, on Etsy, in shops, and at trade shows.
Purchase orders, landed costs, price lots, customers, and invoices live in the same system. Getting that data right came first; an assistant is only useful if the stock figures it gives you are trustworthy.
An assistant that knows the page
Luna opens in a side panel and knows which product or customer is on screen. My wife can ask what's in stock, what sold, or what someone bought previously without navigating through forms.
The vision model also works from product photographs to suggest names, descriptions, and social captions. Those were chores my wife particularly disliked. Having a draft to react to makes them much easier.
One way to make a change
Luna has targeted database tools and one write tool with an explicit list of permitted fields. It presents the old and new values and waits for approval in the conversation. It can suggest a price; it can't quietly change one.
It uses the OpenAI Responses API without a separate retrieval index. Conversations were costing about half a cent when I wrote this up.
The invoice from the year 0112
One unexpected benefit was data cleanup. Luna spotted an inflated invoice count that led me to a counting bug. It also found corrupt records, including a sale dated to the year 0112.
This project has a very direct feedback loop: I live with the person using it. The useful improvements are the ones that make her day easier.
A closer look
On the parts list