Describe the change. Get a change.
Not a new dashboard that replaces yours. The generator answers with an edit to the design you already have — so you can see what it touched, and undo it like anything else.
Why that wording matters
The difference between an edit and a replacement
Ask most tools to make the header darker and add a chart of last month and they hand you a whole new page, with your work absorbed somewhere inside it. You accept it or you lose an afternoon.
Here the answer is the edit: darken this, add that.
Your widgets stay where you put them. The parts it did not mention are the parts it did not touch. One undo puts it back, because it arrived as an ordinary change to the design and the designer already knew how to undo those.
A better starting point than a prompt
Give it a company, not a paragraph
Type a company name or a website and the generator designs from what is publicly known about it — the legal name, the identity, the addresses, the colours it already uses. Useful when the dashboard is for a client and what you have is their URL and a deadline.
Your instructions, kept
Lend it the way you work
Keep the instructions you want it to follow, pick which one is designing with you, and swap them per job — the way you brief a colleague who has done this before, rather than retyping your preferences into every prompt.
Beyond the board
It writes small apps too
Describe a tool — a form that works out a quote, a checklist that remembers where you were — and it gets generated as a mini app that runs on the board. Whatever the app saves becomes a data source a widget can read, so the thing you built on Tuesday is feeding a chart by Thursday.
Ten generations, no account, no card.
Enough to find out whether any of the above is true before you decide anything.