Spacing guardrails

Enforce Aura 13px spacing for Tailwind v4

Installation

pnpm dlx shadcn@latest add @aura/rule-fundations-layout-spacing

--spacing is 13px. Before any m/p/gap/h/w/size utility, compute unit * 13px (so p-4 = 52px, not 16px). Detail in DESIGN.md.

MUST: Use the 13px base and 0.5-unit increments only (1, 1.5, 2, …).
NEVER: Use non-0.5 increments (0.2, 1.2, …) or arbitrary pixel spacing (p-[16px]) unless the human explicitly asks.
MUST: Convert “about 20px” to 1.5 (19.5px), not 2 (26px).
MUST: Sections use defined containers (padding, margins, max-width). Prefer ≤ 5 container types per project.

Color guardrails

12-step accent/gray scale and APCA contrast roles. Detail in DESIGN.md §2.

Typography guardrails

Fluid clamp() type scale and 17px floor for editable form controls. Detail in DESIGN.md §3.