Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must compensate. It adds meaningful context for all parameters: 'query' as the search query, 'group_ids' for filtering, 'max_facts' for limiting results with a default, and 'center_node_uuid' for centering searches. This goes beyond the bare schema, though it could explain parameter interactions or formats more.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.