Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Beyond the annotations (readOnlyHint=false, destructiveHint=false), it discloses that the ZIP is validated first, that the existing database is not overwritten, and that historical application paths are not readable. These are meaningful and consistent with destructiveHint=false, but failure behavior and auth requirements remain undisclosed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.