Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 0% schema description coverage, the description compensates by explaining each parameter: anchor_pattern is a regex, window_seconds has a range and default, max_anchors has a range and default, and response_format accepts markdown or json. This adds significant meaning beyond the schema's titles.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.