Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It mentions 'update' implying mutation but doesn't disclose behavioral traits like required permissions, whether updates are atomic or partial, error handling for invalid inputs, rate limits, or what the response contains. This leaves significant gaps for a mutation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.