1 item
Search for a URL, highlight it, and scroll to it on the current page. This lets you search for a backlink by the URl. So say your competitor has a link on a page, you know what their domain name is, but you don't know what the anchor text is. This extension let's you input the domain into the search box and it will scroll to the anchor/hypertext for the link, so you don't need to do things like look a the source code to find the what the anchor text/hypertext is that relates to the link. I tend to use this with backlink checkers. It allows you to see a competitor's link "in situ", so to speak. But you can look at many pages if you use something like "Bulk URL Opener", another Chrome Extension.
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.