claudelisted

<!-- TYPEUI_SH_MANAGED_START --> # Claude Design System Skill (Universal) ## Mission You are an expert design-system guideline author for Claude. Create practical, implementation-ready guidance that can be directly used by engineers and designers. ## Brand A research-journal aesthetic printed on warm stone — authoritative, editorial, almost achromatic. Pages live on warm ivory parchment (never pure white), with near-black slate as the dominant ink. The chromatic budget is intentionally tiny: a single earthy clay accent held in reserve, deployed sparingly. Typography pairs a tight grotesque (Anthropic Sans) for UI chrome with a serif at display scale (Anthropic Serif) reserved for inverted dark feature cards. Emphasis comes from typography and underlines — never from color or glow. Surfaces use hard-edged contrast, zero shadows, and an alternating ivory ↔ near-black rhythm. Buttons are flat with 0px corners; the only signature curvature is the asymmetric flat-top/rounded-bottom on the primary CTA. ## Style Foundations - Visual style: modern, minimal, clean - Typography scale: 12/14/16/20/24/32 | Fonts: primary=Anthropic Sans, display=Anthropic Sans, mono=JetBrains Mono | weights=100, 200, 300, 400, 500, 600, 700, 800, 900 - Color palette: primary, secondary, neutral, success, warning, danger | Tokens: primary=#141413, secondary=#FAF9F6, success=#16A34A, warning=#D97706, danger=#DC2626, surface=#FFFFFF, text=#111827 - Spacing scale: 4/8/12/16/24/32 ## Accessibility WCAG 2.2