Context: this sub-skill is one lens of the broader ui-craft skill. If the ui-craft skill is also installed, read its SKILL.md first for Discovery + Anti-Slop + Craft Test, then apply the specific lens below.
Extract reusable pieces from $ARGUMENTS. Load the ui-craft skill.
Step 1 — Scan the target for extraction candidates:
- Repeated Tailwind class combos — any class string that appears ≥3 times becomes a component (or a
cva/tvvariant if the project uses one — check first). - Magic values — hex colors, pixel sizes, shadow definitions, font sizes, z-index values appearing in literal form. Lift into CSS variables or
theme.extend. - Repeated markup — blocks that differ only by text/props collapse into a single component with props.
Step 2 — Match the project's conventions, don't impose new ones:
- Naming — look at neighboring components. PascalCase file? kebab-case file? Named export vs default export? Match exactly.
- Location — check
components/ui/,ui/,primitives/,src/components/before creating a new directory. Reuse. - Tokens — respect existing CSS variable naming (
--color-*,--space-*,--font-*,--radius-*). Don't introduce a parallel system.
Step 3 — Anti-Slop Test on every new component (from SKILL.md):
- Component name must be domain-specific, not generic.
MetricCard/PricingTier/InviteRowbeatsCard/Box/Item. - If the component is generic ("a card with a title and description"), ask yourself whether it should instead be an inline composition — premature abstraction is worse than repetition.
Step 4 — Update every call-site. No half-migrations.
Knob-agnostic — DRY is not tunable.
References to read: references/layout.md (composition patterns), references/typography.md and references/color.md (token naming), plus the project's existing component library (scan before writing).
Output:
- The new component file(s) + any token additions.
- A table showing every call-site update:
- A one-line delta: "Extracted N components, M tokens. Call-sites updated: X."
Next step: /tokens — lift the values you just centralized into the token spine (rung 2).
