Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must fully disclose behavioral traits. It indicates a read-only listing operation and mentions validity period, but does not specify whether it returns all certificates, filtering, or any other side effects. Missing details like if it requires authentication or if it's destructive.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.