Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations supply only readOnlyHint=false, so the description must carry the behavioral load. It does disclose the key precondition (execution must already be paused) and that this resumes rather than restarts, but it omits what happens if the target is not paused and whether any execution state is reset, leaving real gaps for a mutation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.