Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses the key behavior that only provided fields are modified, which is valuable. However, with no annotations, it omits other important behavioral details such as error handling when the task does not exist, whether the updated task is returned, or any permission requirements. The burden is only partially met.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.