Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already disclose destructive (destructiveHint: true), read-only (readOnlyHint: false), and idempotent (idempotentHint: true) behavior. The description adds that it deletes a memory by key, which is the primary behavior, and mentions sensitive data context. However, it does not explain what happens if the key does not exist or whether deletion is irreversible, leaving some behavioral details implicit.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.