Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but offers minimal behavioral insight. It mentions 'search' which implies read-only behavior, but doesn't disclose pagination (limit/after parameters), sorting capabilities, authentication needs, rate limits, or what happens when no filters are provided. The description doesn't contradict annotations (none exist), but fails to provide essential operational context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.