Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already cover the read-only/idempotent/non-destructive profile, and the description adds substantial context beyond them: what is returned (health factor now, projected at reopen, liquidation price, paused reserves, dividends), plus auth/cost mechanics (x402 at $0.04/call, prepaid x-credit-token header, 1 free call/day, no API key). The 'Not financial advice' caveat further sets expectations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.