Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true, and openWorldHint=true, covering key behavioral traits (safe, non-destructive, repeatable, open-world). The description adds minimal value by implying a GET operation, which aligns with annotations but doesn't provide additional context like rate limits, authentication needs, or return format. With annotations doing the heavy lifting, the description's contribution is limited, warranting a baseline score.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.