Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description adds domain meaning that annotations cannot carry – that Stripe enables paid products/bookings and Telegram handles owner chats – which helps interpret 'connected' and 'ready'. However, it discloses nothing about how readiness is determined, whether live service calls are made, or what permissions are needed; note the tension that a purely informational 'see which' tool carries readOnlyHint=false in the annotations, unexplained by the description.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.