Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already declare readOnlyHint=true and openWorldHint=false, so safety is covered. The description adds only that two kinds of data come back (configured alerts plus a log), with no word on how much 'recent' covers, ordering, or result limits — meaningful gaps for a log-reading tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.