Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure, but it discloses nothing about side effects, authorization needs, output format, or potential failure modes. 'Compare' suggests a read-only operation, but the description never states this explicitly.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.