Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description simply restates the action without disclosing behavioral traits such as whether deletion is permanent, what happens if the saved search does not exist, or any required permissions. With no annotations, the description carries the full responsibility and fails to add any context beyond the tool name.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.