Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full burden for behavioral disclosure. It does not indicate side-effects (e.g., read-only or destructive), what 'identify' entails (e.g., returns metadata or just existence), or any prerequisites. This is insufficient for safe invocation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.