Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true, idempotentHint=true and openWorldHint=true, so the safety profile is covered structurally. The description adds nothing beyond that — no mention of permanence, cascading effects on messages/documents, or auth requirements — and its 'streaming message endpoint' framing pulls in the opposite direction from a delete.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.