ux-compare

# UX Compare Read N pattern libraries produced by `ux-extract` 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 class you're about to build reveals the convention and the tradeoffs - **During a design review** — "this pattern isn't in any of the 5 references we've extracted — is that deliberate?" - **For team alignment** — shared reference for a design decision - **To produce a design brief** — convergent patterns become the baseline; divergent patterns become the discussion ## Inputs ### Available libraries First, discover what's available. Pattern libraries live at: - `docs/ux-extracts/<app-name>/pattern-library.md` - `.jez/artifacts/ux-extracts/<app-name>/pattern-library.md` List everything you find. Show the user the inventory with the extraction date for each so they can spot stale ones: ``` Available pattern libraries: - claude.ai (extracted 2026-03-12) - linear.app (extracted 2026-02-28) - notion.so (extracted 2026-01-15) ← 3 months old - s...