Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations provide no safety hints (all false), so the description carries the full burden. It does disclose that the tool mutates state ('Removes') and constrains to open orders, but it omits details on side effects (e.g., permanence, partial failures in bulk, error handling, permissions). For a mutation tool with zero annotation support, this is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.