Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate readOnlyHint=false, openWorldHint=true, and idempotentHint=false, covering the safety profile. The description adds the cost of deployment ($5.00 USDC) and the target network, which are useful behavioral details. However, it doesn't disclose any side effects, authorization requirements, or what happens on success/failure, so the added value is moderate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.