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 — and it does completely. from_id and to_id are explained as memory IDs (recuerdo origen/destino), and max_depth gets both its meaning ('Profundidad máxima de búsqueda'), its default (5), and a max constraint (10) that the schema omits.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.