Bazi

This is a comprehensive Chinese fortune telling system that walks users through collecting birth data (name, solar/lunar dates, birth time, location, gender) and generates a detailed Bazi four-pillar analysis. It references classical texts like Qiong Tong Baojian and Zi Ping Zhen Quan, calculates the heavenly stems and earthly branches for year, month, day and hour pillars, determines favorable elements and life phases, and analyzes past and future fortune trends. The workflow is genuinely methodical, using step-by-step questioning with validation tables for time conversions and element calculations. It even asks users to verify predictions against historical events to calibrate the reading. If you're building culturally specific tools or need an example of structured multi-step information gathering with domain-specific calculations, this shows how to handle complex traditional knowledge systems in Claude.