I am not overly keen on using the description from the software center. As it stands many of the descriptions there are of poor quality to "normal" users. They seem to be written to other packagers. This can change of course. (and are those descriptions translated?)
A simpler solution would be to just use X-GNOME-Keywords which we do support in unity-lens-applications (as I also mentioned in bug 833610).
I am not overly keen on using the description from the software center. As it stands many of the descriptions there are of poor quality to "normal" users. They seem to be written to other packagers. This can change of course. (and are those descriptions translated?)
A simpler solution would be to just use X-GNOME-Keywords which we do support in unity-lens- applications (as I also mentioned in bug 833610).