Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description bears full responsibility for behavioral disclosure. While 'Get' implies a non-destructive read, the description does not clarify what 'available grooves' means, whether it lists presets from a pool, or any potential side effects. This is minimal disclosure beyond the name.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.