Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0% for 9 parameters, and the description does not explain any of them. It vaguely hints at service types and evidence tiers, but does not map those concepts to the 'source' or 'evidence' parameters, nor explain 'q', 'asset', 'limit', 'scheme', 'network', 'curated_only', or 'max_usd_price'. The minimal hint prevents a score of 1.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.