{"title":"Calculate compatibility","fields":[{"key":"person1.birthDate","name":"birthDate","group":"person1","kind":"date","required":true,"description":"Birth date of person 1 in YYYY-MM-DD format.","example":"1990-07-15"},{"key":"person2.birthDate","name":"birthDate","group":"person2","kind":"date","required":true,"description":"Birth date of person 2 in YYYY-MM-DD format.","example":"1992-03-22"},{"key":"targetDate","name":"targetDate","kind":"date","required":false,"description":"Date to evaluate compatibility on in YYYY-MM-DD format. Defaults to today (UTC). Compatibility varies by day since biorhythm cycles are continuous.","example":"2026-04-10"}],"hasLang":true}