Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
There are no annotations, so the description must carry the behavioral burden. It does state what is returned (configured exchanges and their connection status), and '获取' implies a read operation. However, it does not explicitly disclose whether this is safe/read-only, whether connection status is live or cached, or whether any network calls are made.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.