Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden of behavioral disclosure. It discloses that the tool lists active operations and their status, implying a read-only operation, but does not explain what 'active' means, whether it returns operation IDs for follow-up, or any edge cases. It is not misleading but minimal.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.