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 states the tool returns dividend data in Markdown table format or error messages, which adds some behavioral context. However, it lacks details on permissions, rate limits, data freshness, or error handling specifics, which are important for a data-fetching tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.