Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavioral traits but only says 'Load and optionally attach'. It does not reveal whether the operation is destructive, what side effects occur (e.g., changes to the database), or any authorization or session requirements beyond the parameter names.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.