Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It clearly outlines the input (WGS84 lon/lat + zoom) and output (JSON with ok, zoom, x, y, tile_bbox, quadkey). No side effects or destructive behavior are expected, and the description accurately reflects a pure conversion function.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.