Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=true, so the safety profile is covered. The description adds nothing beyond that — no indication of what the payload contains (severity enum labels/ids?), whether values are cached or org-specific, or whether it requires auth, despite openWorldHint implying external dependency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.