Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It transparently describes the return format, including a metadata header with token counts, word count, character count, and reading time. However, it does not disclose potential side effects (e.g., network calls for URLs) or failure conditions, which is a minor gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.