Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true, idempotentHint=false and readOnlyHint=false, so the safety profile is covered. The description adds nothing beyond that: it does not say whether the track is merely unlinked from the set (still in the library) or removed entirely, whether the removal is reversible, or what happens when the track is not in the set — the key ambiguity given a sibling named delete_track.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.