Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It only says 'delete', which is inherently destructive, but does not mention irreversibility, permission requirements, effects on associated data, or any caveats beyond the deprecation note. The deprecation is a lifecycle detail, not an operational behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.