Tip: Lock Non-Negotiable Project Rules with GitHub Spec Kit's Constitution Document

GitHub Blog·medium signal

Spec Kit's 'constitution' feature lets you capture project invariants — testing conventions, CLI-first requirements, design system standards — in a single document that every SDD phase references automatically. Unlike CLAUDE.md or .cursorrules which are agent-specific, Spec Kit constitutions work across 30+ agents. Define once, enforce everywhere. This eliminates the pattern of repeating the same constraints in every prompt and prevents agents from 'forgetting' project rules mid-session.