retool-ui-skills

Retool 的 UI 设计系统。在构建受 Retool 美学启发的界面时使用——浅色模式、Inter 字体、4px 网格。

SKILL.md

--- frontmatter

name: retool-ui-skills
description: Retool's UI design system. Use when building interfaces inspired by Retool's aesthetic - light mode, Inter font, 4px grid.
license: MIT
metadata:
  author: design-skills
  version: "1.0.0"
  source: https://retool.com

Retool UI Skills

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

When to Apply

Reference these guidelines when:

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

Colors

•SHOULD use light backgrounds for primary surfaces
•MUST use #E3E6D7 as page background (surface-base)
•MUST use #80AEF2 for primary actions and focus states (accent)
•SHOULD reduce color palette (currently 21 colors detected)
•MUST maintain text contrast ratio of at least 4.5:1 for accessibility

Semantic Tokens

Token	HEX	RGB	Usage
`surface-base`	#E3E6D7	rgb(227,230,215)	Page background
`surface-raised`	#081319	rgb(8,19,25)	Cards, modals, raised surfaces
`surface-overlay`	#3469F5	rgb(52,105,245)	Overlays, tooltips, dropdowns
`text-primary`	#80AEF2	rgb(128,174,242)	Headings, body text
`text-secondary`	#A49369	rgb(164,147,105)	Secondary, muted text
`text-tertiary`	#646560	rgb(100,101,96)	Additional text
`border-default`	#255DF1	rgb(37,93,241)	Subtle borders, dividers
`accent`	#80AEF2	rgb(128,174,242)	Primary actions, links, focus
`warning`	#9B7C4A	rgb(155,124,74)	Warning states, cautions

Typography

•MUST use Inter as primary font family
•SHOULD use single font family for consistency
•MUST use 54px / 700 for primary headings
•MUST use 19px / 500 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	54px	700	#C4C6BC	1
`text-45px`	Inter	45px	500	#6E6E6B	1
`text-45px`	Inter	45px	500	#C2C3BD	1
`text-38px`	Inter	38px	500	#B5B6AF	1
`text-38px`	Inter	38px	500	#6C6C69	1
`text-36px`	Inter	36px	500	#AFB0A9	1
`text-36px`	Inter	36px	500	#767673	1
`text-36px`	Inter	36px	500	#CECFC7	1
`body`	Inter	19px	500	#BDBEB8	1
`body-secondary`	Inter	18px	400	#7F7F7D	1

Typography Reference

Font Families:

•Inter (used 40x)

Font Sizes: 7px, 8px, 9px, 10px, 11px, 12px, 13px, 14px, 15px, 16px, 18px, 19px, 36px, 38px, 45px, 54px

Spacing

•MUST use 4px grid for spacing
•SHOULD use spacing from scale: 1px, 2px, 3px, 4px, 5px, 15px, 24px, 35px
•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: 2px, 3px, 4px, 19px, 32px, 99px
•SHOULD use 32px+ radius for pill-shaped elements
•SHOULD limit border widths to: 1px, 4px
•SHOULD use 32px 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: 2px, 3px, 4px, 19px, 32px, 99px

Layout

•MUST design for 1920px base viewport width
•SHOULD use consistent element widths: 8px, 11px, 7px, 6px, 1364px
•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-*

Detected Layout Patterns

•Main Content: width: 1920px, height: 900px
•Main Content: width: 1307px, height: 661px
•Main Content: width: 1364px, height: 702px
•Header: height: 88px

Components

Buttons

Variant	Background	Text	Border	Height	Radius
Ghost	transparent	#80AEF2	none	-	-

Interactive States

Focus

•MUST use 2px outline with accent color (#80AEF2)
•MUST use 2px outline-offset
•NEVER remove focus indicators

Hover

•Buttons (primary): lighten background by 10%
•Buttons (secondary): use #081319 background
•List items: use #081319 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