The best content and the best objection handling are already sitting in your call recordings. Nobody reads them, because reading forty calls to find a pattern is nobody's job.
Why count calls rather than mentions
One prospect who raised a concern six times in one call is one prospect with a concern. Ranking by mentions makes that look like the biggest issue in your market. Ranking by how many separate calls raised it tells you what is actually common.
It sounds like a small distinction and it changes the order of the list almost every time.
What it is for
Three things, and the third is the one people miss.
It reads and writes research only
Nothing is sent, posted or published. The output is a document that other skills read: the content concepts skill uses it to justify a topic, and the voice work uses the same recordings for how you actually talk.
Runs well with
Skills compound. These are the ones we usually install alongside it.