Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full behavioral disclosure burden. It does state the core effect—changing visibility of nodes—but it does not disclose secondary behavior such as all-or-nothing failure, handling of invalid node IDs, or idempotency. For a simple, low-risk mutation, the core behavior is at least transparent enough to earn a baseline score.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.