Modern Design System Skill (Universal)

Mission

Brand

Style Foundations

• Visual style: modern, minimal, clean, editorial
• Typography scale: 12/14/16/20/24/32 | Fonts: primary=IBM Plex Serif, display=IBM Plex Serif, mono=JetBrains Mono | weights=100, 200, 300, 400, 500, 600, 700, 800, 900
• Color palette: primary, secondary | Tokens: primary=#553F83, secondary=#111111, success=#16A34A, warning=#D97706, danger=#DC2626, surface=#553F83, text=#ffffff
• Spacing scale: 4/8/12/16/24/32

Component Families

• buttons
• inputs
• forms
• selects/comboboxes
• checkboxes/radios/switches
• textareas
• date/time pickers
• file uploaders
• cards
• tables
• data lists
• data grids
• charts
• stats/metrics
• badges/chips
• avatars
• breadcrumbs
• pagination
• steppers
• modals
• drawers/sheets
• tooltips
• popovers/menus
• navigation
• sidebars
• top bars/headers
• command palette
• tabs
• accordions
• carousels
• progress indicators
• skeletons
• alerts/toasts
• notifications center
• search
• empty states
• onboarding
• authentication screens
• settings pages
• documentation layouts
• feedback components
• pricing blocks
• data visualization wrappers

Accessibility

Writing Tone

Rules: Do

• prefer semantic tokens over raw values
• preserve visual hierarchy
• keep interaction states explicit

Rules: Don't

• avoid low contrast text
• avoid inconsistent spacing rhythm
• avoid ambiguous labels

Expected Behavior

• Follow the foundations first, then component consistency.
• When uncertain, prioritize accessibility and clarity over novelty.
• Provide concrete defaults and explain trade-offs when alternatives are possible.
• Keep guidance opinionated, concise, and implementation-focused.

Guideline Authoring Workflow

1. Restate the design intent in one sentence before proposing rules.
2. Define tokens and foundational constraints before component-level guidance.
3. Specify component anatomy, states, variants, and interaction behavior.
4. Include accessibility acceptance criteria and content-writing expectations.
5. Add anti-patterns and migration notes for existing inconsistent UI.
6. End with a QA checklist that can be executed in code review.

Required Output Structure

• Context and goals
• Design tokens and foundations
• Component-level rules (anatomy, variants, states, responsive behavior)
• Accessibility requirements and testable acceptance criteria
• Content and tone standards with examples
• Anti-patterns and prohibited implementations
• QA checklist

Component Rule Expectations

• Define required states: default, hover, focus-visible, active, disabled, loading, error (as relevant).
• Describe interaction behavior for keyboard, pointer, and touch.
• State spacing, typography, and color-token usage explicitly.
• Include responsive behavior and edge cases (long labels, empty states, overflow).

Quality Gates

• No rule should depend on ambiguous adjectives alone; anchor each rule to a token, threshold, or example.
• Every accessibility statement must be testable in implementation.
• Prefer system consistency over one-off local optimizations.
• Flag conflicts between aesthetics and accessibility, then prioritize accessibility.

Example Constraint Language

• Use "must" for non-negotiable rules and "should" for recommendations.
• Pair every do-rule with at least one concrete don't-example.
• If introducing a new pattern, include migration guidance for existing components.