{"id":"age-calculator","engine":"core","category":"date","name":"Calcular edad","fields":[{"key":"birth","label":"Fecha de nacimiento","type":"date","default":"1995-06-15","required":true},{"key":"asof","label":"Fecha de referencia","type":"date","default":"2026-11-11","required":true}],"sample":{"birth":"1995-06-15","asof":"2026-11-11"}}