Ashby UI Skills

Opinionated constraints for building Ashby-style interfaces with AI agents.

When to Apply

Reference these guidelines when:

• Building dark-mode interfaces
• Creating Ashby-inspired design systems
• Implementing UIs with Inter font and 4px grid

Colors

• MUST use dark backgrounds (lightness < 20) for primary surfaces - detected lightness: 9
• MUST use #0E1122 as page background (surface-base)
• SHOULD limit color palette to 8 distinct colors
• MUST maintain text contrast ratio of at least 4.5:1 for accessibility

Semantic Tokens

Token	HEX	RGB	Usage
surface-base	#0E1122	rgb(14,17,34)	Page background
surface-raised	#FEFEFE	rgb(254,254,254)	Cards, modals, raised surfaces
text-primary	#D6D9DD	rgb(214,217,221)	Headings, body text
text-secondary	#34384D	rgb(52,56,77)	Secondary, muted text
text-tertiary	#797979	rgb(121,121,121)	Additional text
border-default	#818288	rgb(129,130,136)	Subtle borders, dividers

Typography

• MUST use Inter as primary font family
• SHOULD use single font family for consistency
• MUST use 28px / 700 for primary headings
• MUST use 24px / semi_bold for body text
• SHOULD reduce font weights (currently 4 detected)
• MUST use text-balance for headings and text-pretty for body text
• SHOULD use tabular-nums for numeric data
• NEVER modify letter-spacing unless explicitly requested

Text Styles

Style	Font	Size	Weight	Color	Count
heading-1	Inter	28px	700	#E6E8EB	1
heading-2	Inter	25px	semi_bold	#D1D3D8	1
heading-3	Inter	24px	semi_bold	#E2E5E9	1
body	Inter	24px	semi_bold	#E0E2E6	1
body-secondary	Inter	24px	semi_bold	#D7D9DD	1
text-19px	Inter	19px	semi_bold	#D6D9DD	1
text-19px	Inter	19px	400	#507A5D	1
text-16px	Inter	16px	400	#797979	1
text-15px	Inter	15px	400	#34384D	1
caption	Inter	14px	400	#313549	1

Typography Reference

Font Families:

• Inter (used 16x)

Font Sizes: 12px, 13px, 14px, 15px, 16px, 19px, 24px, 25px, 28px

Spacing

• MUST use 4px grid for spacing
• SHOULD use spacing from scale: 2px, 3px, 4px, 5px, 88px
• SHOULD use 2px as default gap between elements
• NEVER use arbitrary spacing values (use design scale)
• SHOULD maintain consistent padding within containers

Borders

• MUST use border-radius from scale: 10px
• MUST use 4px border width consistently
• SHOULD use 10px as default border-radius
• NEVER use arbitrary border-radius values (use design scale)
• SHOULD use subtle borders (1px) for element separation

Border Radius Reference

Scale: 10px

Layout

• MUST design for 1920px base viewport width
• SHOULD use consistent element widths: 560px, 17px, 564px, 1px, 79px
• SHOULD maintain text-heavy layout with clear hierarchy
• NEVER use h-screen, use h-dvh for full viewport height
• MUST respect safe-area-inset for fixed elements
• SHOULD use size-* for square elements instead of w-* + h-*

Components

• MUST use 0px height for input fields

Inputs

• Height: 0px

Interactive States

Focus

• MUST use 2px outline with accent color (#5E6AD2)
• MUST use 2px outline-offset
• NEVER remove focus indicators

Hover

• Buttons (primary): lighten background by 10%
• Buttons (secondary): use #FEFEFE background
• List items: use #FEFEFE background

Disabled

• MUST use opacity: 0.5
• MUST use cursor: not-allowed

Interaction

• MUST use an AlertDialog for destructive or irreversible actions
• SHOULD use structural skeletons for loading states
• MUST show errors next to where the action happens
• NEVER block paste in input or textarea elements
• MUST add an aria-label to icon-only buttons

Animation

• NEVER add animation unless it is explicitly requested
• MUST animate only compositor props (transform, opacity)
• NEVER animate layout properties (width, height, top, left, margin, padding)
• SHOULD use ease-out on entrance animations
• NEVER exceed 200ms for interaction feedback
• SHOULD respect prefers-reduced-motion

Performance

• NEVER animate large blur() or backdrop-filter surfaces
• NEVER apply will-change outside an active animation
• NEVER use useEffect for anything that can be expressed as render logic