Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It mentions the output is '纯文本内容(去格式)' (plain text without formatting), which is useful. However, it doesn't address critical behavioral aspects: whether this is a read-only operation, what authentication is required, rate limits, error conditions, or what happens with large documents. For a tool that fetches document content, this leaves significant gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.