principle-redesign-from-first-principles

从第一性原理重设计

When integrating a change, don’t bolt it onto the existing design. Redesign as if the requirement had been there from the start.

接入改动时，别钉在现有设计上。当作这需求从一开始就在，重新设计。

• Read all affected files and understand the current design

• Ask: “if we were writing this from scratch with this new requirement, what would we build?”

• Propagate the change through every reference: types, docs, examples, rationale sections

• Think about the whole redesign, then deliver it incrementally

• 读完所有受影响文件，理解当前设计

• 问：「带着这新需求从零写，我们会建什么？」

• 把改动传播到每个引用：类型、文档、示例、rationale 小节

• 想整体重设计，再增量交付

This is the method for preserving option value when integrating changes into an existing design.

这是把改动接入已有设计时保护期权价值的方法。