{"title":"Get biorhythm reading","fields":[{"key":"birthDate","name":"birthDate","kind":"date","required":true,"description":"Birth date of the person in YYYY-MM-DD format. This is the anchor for all biorhythm cycle calculations.","example":"1990-07-15"},{"key":"targetDate","name":"targetDate","kind":"date","required":false,"description":"Date to calculate the reading for in YYYY-MM-DD format. Defaults to today (UTC) if omitted.","example":"2026-04-10"}],"hasLang":true}