Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already provide comprehensive behavioral hints (readOnlyHint: true, destructiveHint: false, idempotentHint: true, openWorldHint: true), so the bar is lower. The description adds minimal value by specifying 'GET' as the HTTP method, which aligns with the read-only nature indicated by annotations. However, it doesn't provide additional context about what 'ai.one' represents, authentication requirements, rate limits, or response format.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.