Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full responsibility for behavioral disclosure. It implies a reset to default state but does not mention potential side effects (e.g., losing unsaved settings), whether a connection is assumed, or whether it affects only the specified host/port or all instruments.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.