Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must disclose behavioral traits. It fails to mention that this is a destructive operation, what exactly gets deleted (e.g., a watch entry identified by handle/session), or any side effects. The bare name 'watch.delete' gives no behavioral insight beyond a vague sense of deletion.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.