UX Compare Read N pattern libraries produced by and synthesise a comparison. Answers questions like: - "Across claude.ai, Linear, Notion, Vercel, and Superhuman — how are empty states handled?" - "Which apps use keyboard shortcuts, and what's the shared vocabulary?" - "When we build our billing page, should we follow convention or deliberately break it?" A single extract is a reference point. Multiple extracts are a design library. A comparison is a decision aid — it turns the library into "here's what to do and why". When to use - Before a build — comparing 3–5 references for the feature cla…