Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds content context (the list includes wallets, DEXs, and protocols) but does not disclose additional behaviors such as response size, pagination, or the effect of the chainId filter. With annotations present, this is acceptable but not enriched.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.