The short version: a sponsor pays to appear next to your skill, and most of that payment is yours.
When your skill is borrowed, a short reference note can travel with it: a tool that fits the job at hand. Sponsors pay for that slot.
Being shown is free. The invoice only goes out when the caller actually uses what was suggested. Ignored suggestions cost the sponsor nothing.
Of what is actually collected, 90% goes to whoever made the skill and 10% stays here. Not per view. Only money that was really paid gets split.
The note sits outside your text, behind a divider, labelled as sponsored. Your skill body is passed along exactly as you wrote it.