Individual skill

design-better

Use when the user is building or refactoring UI in their product codebase and wants designer-quality frontend code — not just functional code. Triggers on phrases like "design better", "make this UI feel more designed", "elevate the design quality", "build this with design best practices", "follow UX heuristics", "make this feel professional", "apply design polish", "review this for craft", or any request to apply UX/UI craft heuristics to code generation or review. Pairs with `docs/design.md` when it exists — the design system file owns **style** (colors, typography, spacing tokens, components), this skill owns **craft** (hierarchy, interaction, accessibility, motion, polish). Reference `docs/design.md` tokens by name for every visual decision; apply the 50-item heuristics catalogue and the Laws of UX catalogue below for every craft decision. When `docs/design.md` is absent, fall back to the codebase's existing design conventions and recommend the **Design System** skill. When a heuristic implies a token the design system doesn't have, flag it as a New Pattern to add via the **Design System** skill — never invent a value inline. Fully standalone.

skills/design-better/SKILL.md

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# Design Better

A craft layer for any coding agent generating or reviewing UI. Style is owned by `docs/design.md`; this skill owns the timeless UX/UI craft heuristics — drawn from Nielsen Norman Group, the [Laws of UX](https://lawsofux.com/), Shneiderman, Refactoring UI, WCAG 2.2, Don Norman, Apple HIG, Material 3, and 2025–2026 AI-product patterns — that separate "shipped" from "designed."

> **Boundary.** When a heuristic implies a visual property, reference a `docs/design.md` token by name (`{colors.primary}`, `{rounded.md}`). If `docs/design.md` doesn't have the token, flag it as a New Pattern to add via the **Design System** skill — never inline hex, font names, or arbitrary px. If `docs/design.md` doesn't exist at all, follow the codebase's existing convention for that property (theme config, CSS custom properties, component library) and note it.

## Inputs

- **`docs/design.md`** — the style layer (recommended, not required). When present, reference its tokens by name for every visual decision. When absent, this skill still applies: fall back to the codebase's existing design conventions (theme config, CSS custom properties, existing components) as the style source, and recommend running the **Design System** skill to establish a single token source of truth (part of BuilderOS: https://github.com/BuildGreatProducts/builder-os).
- **The thing being built or refactored** — a brief, a file, or uncommitted diff.
- **`docs/product-vision.md`** — optional. Its strategy and brand inform microcopy tone and help weight which heuristic categories dominate.

## Workflow
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