Spec-driven development treats a structured specification—not the codebase—as the system of record. This post maps who does what when you work that way: from turning product intent into an agent-readable spec, through API contracts and UI rules, to validation that implementation still matches what you wrote down. Table of contents Overview Spec-driven development (SDD) is […]

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Blurb: DESIGN.md is an open spec for encoding your visual identity in one repo file: YAML tokens plus Markdown rationale, a CLI for linting (including WCAG contrast) and exporting to Tailwind or DTCG, and a plain-text contract so coding agents stop improvising your design system from scratch. Contents When you ask a coding agent to build […]

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