Zi Wei Dou Shu 紫微斗數 — AI Purple Star reading

Zi Wei Dou Shu (紫微斗數, "Purple Star") arranges the 14 main stars + auxiliaries + four transformations (四化) across 12 palaces to map a person's life domains — Life palace, Wealth, Career, Spouse, and so on. The active 大限 (10-year phase) and 流年 (annual phase) overlay onto the natal chart and trigger events when they hit specific palaces or 四化.

Tian Qi's Zi Wei interpreter uses the 大德山人《紫微斗數精成》framework with explicit 三才結構 (天/地/人) hierarchy, 上剋下生 layered 四化 logic, and the full 疊盤 overlay between natal, 大限, and 流年. The calculator places the stars; the AI reads the chart in plain English.