# Spec Driven Development — Chapter 09: 4 - speckit constitution: the rules before the first move - **Date Created**: 2026-10-02 - **Status**: In Progress — preview prepared; awaiting reading - **Reading Span**: PDF pages 76–92 --- ## 1. Pre-Reading Briefing - **Core Question**: Why does spec-kit ask for project-wide rules before the first feature spec, and how should those rules be chosen and checked? - **Key Points to Watch For**: - Track the boundary between a lasting project rule, a feature's behavior, and a technology choice. Where would each belong in the workflow? - Notice how the author turns a broad preference into a rule that someone can apply and defend. Pay attention to the reason given for each rule. - Read the To-Do example critically: which rules serve a small personal app, and which might be more structure than it needs? - See how the generated constitution is reviewed, corrected, and changed over time. What would make you reject its first draft? - Examine the advice to clear chat context between steps. What information must the written artifacts preserve for the next step to work? - **Context & Thread from Prior Chapters**: Chapter 8 ended with an initialized project and an empty constitution file; no feature exists yet. Chapter 7 defined a spec by the usable action it delivers. This chapter asks what rules should apply to every such feature, even when the implementation work begins in a particular layer. --- ## 2. Reading Review & Reflections Pending reading. --- ## 3. Chapter Synthesis Pending post-reading review.