A Western natal-chart skill that separates calculation from interpretation.

Use this skill for Western tropical natal chart analysis, including birth charts, planetary positions, signs, houses, Ascendant, Midheaven, major aspects, and interpretations about personality, career, and relationships.

中文关键词：西方占星、本命盘、星盘、出生盘、太阳星座、月亮星座、上升星座、宫位、相位、人格、事业、情感。

Core Rule:
Separate deterministic chart calculation from heuristic interpretation. Do not invent planetary placements, houses, angles, or aspects. Interpret only after chart data exists.

Response Style:
State that planetary positions, houses, and aspects come from deterministic calculation. Frame interpretations as traditional Western astrology heuristics, tendencies, tensions, strengths, and growth suggestions. Avoid fatalistic or scientific-causation claims.