Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations exist, so the description carries the full behavioral burden. It discloses the return payload (columns, numeric flags, row count, provenance banner), which is genuinely useful, but says nothing about whether the dataset is static or refreshed, or any limits on the call. Adequate but incomplete for a no-annotation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.