Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint and openWorldHint, so the safety profile is covered. The description adds one genuinely new behavioral fact: the response expands related projects and links rather than returning a bare initiative. It omits any note about permissions or failure modes on a missing id.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.