Short answer
HubSpot's KB: signals are available only for tracked companies. The Recent intent signals property is a rolling 30-day summary. Credits can come from a purchase or a seat plan. The HubSpot connector for Claude can retrieve individual signal events.
1. In HubSpot
The relevant screen in my demo portal.

2. Worth knowing
Track fewer, better-fit companies so signals stay meaningful.
3. Related
Buyer intent and research intent.