Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false, destructiveHint=false and openWorldHint=true, so the safety profile is covered. The description adds real behavioral value by disclosing the timing semantics — the pause only takes effect after the current chunk finishes. It omits whether the pause is resumable, how long the paused state persists, and what the caller should observe afterwards.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.