Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, so the safety profile is partly covered. The description still adds real value beyond them: org-wide visibility for members and agents, the fact that existing competitor monitoring picks it up, that publication is not scheduling, that multiple strategies can be live at once, and that strategy management rights are required. It stops short of saying what is lost or who loses access when a strategy is reverted to draft, which matters given destructiveHint=true.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.