Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses key behaviors: it fetches data (read-only implied), handles optional parameters with defaults, and returns a markdown table or error. However, it lacks details on rate limits, authentication needs, data freshness, or error specifics, which are important for a tool with no annotation coverage.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.