Duplicate descriptions are how directories disappear
There is a particular kind of directory that gets built in a weekend: scrape the meta description, drop it into a template, repeat two thousand times. Every page reads ProductName is a powerful tool that helps you do X. With ProductName you can do Y. It ranks for a few weeks. Then it does not rank at all, and neither do the pages linking out of it.
Search engines are unusually good at spotting a page that exists only to hold a link.
The floor we set
Every listing here needs between 350 and 2000 characters of description, written about that product specifically. It is enforced when you submit and enforced again when you edit. Under the floor, the form will not let you continue.
Where the draft comes from
We read your public page and draft the description for you, with a model told in plain terms to vary its structure, avoid templates, skip the stacked adjectives, and write only from what is actually on the page. It rotates the angle it opens on so two listings written a minute apart do not come out the same shape.
That draft is a starting point, not the finished thing. It sits in an editable box with a character counter, and nothing publishes until you have read it. You know what your product does; the draft just means you are not staring at an empty field.
Why we bother telling you this
Because it explains the one rule that looks annoying from the outside. The 350-character floor is not busywork. It is the difference between a page a person might actually read and one nobody, human or machine, has a reason to keep.