Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate readOnlyHint=false, destructiveHint=false, which is consistent with a create operation. The description adds useful behavioral context: notes are indexed for search and AI retrieval, and workspace name resolution is automatic. It doesn't mention potential side effects like overwriting or required permissions, but for a create tool this is adequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.