This skill should be used when users want to analyze Shanghai Gaokao (上海高考) essay prompts. Triggers when the user provides a Shanghai-style argumentative essay prompt, or says "帮我审题"、"分析这道作文题"、"审这道作文题"、"审题" etc. Produces a structured 审题 result covering 中心问题、基本问题范畴、二元关系、反转正三段论证（每段两个理由）, and explicitly explains the reasoning path.
