Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the behavioral disclosure burden. 'Return' and 'log lines' clearly imply a read-only retrieval operation, and 'this tenant's tools' establishes scoping. However, it does not disclose authentication expectations, possible failure modes, or whether results are ordered or truncated beyond the generic 'most recent.'
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.