Yep. You give Promptless access to a test account and it navigates and interacts with your product to capture new/updated screenshots.

Here's an example from our own docs, where you can see the captured screenshots if you scroll down to the PNGs that Promptless added https://github.com/Promptless/docs/pull/233/changes

Getting the browser navigation to work was predictably hard, but the other thing that's very hard to get right is timing when Promptless takes the screenshots. Some teams want Promptless capturing screenshots on a staging environment, and sometimes it's on prod, and different teams have different release cycles and feature flagging processes.

For that reason, we still have to do a bit of manual set-up for each user that wants screenshot updating.

Agreed though that just asking nano banana to predict a new screenshot is negative value.