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 real behavioral context beyond them: it reports resolved/still-open/new blockers and performs actual deployment checks, and discloses the read-only comparison against deployed JSON-LD and discovery files. No auth or rate-limit detail, but not required here.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.