Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description carries the load — it explains the semantics of resource_type, category, audience, skill, and age as post-filters over the text query, which is the crucial non-obvious point about all of them. It does not define query (self-evident) or limit, and it does not spell out the enum values for resource_type, which leaves a small gap.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.