103 lines
4.1 KiB
Markdown
103 lines
4.1 KiB
Markdown
---
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name: baseline-ui
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description: Quickly deslop UI code by fixing spacing, hierarchy, typography, and small layout issues. Use when the interface needs a fast cleanup or polish pass.
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risk: unknown
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source: https://github.com/ibelick/ui-skills/tree/main/skills/baseline-ui
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source_repo: ibelick/ui-skills
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source_type: community
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date_added: 2026-07-01
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license: MIT
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license_source: https://github.com/ibelick/ui-skills/blob/main/LICENSE
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---
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# Baseline UI
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## When to Use
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Use this skill when you need quickly deslop UI code by fixing spacing, hierarchy, typography, and small layout issues. Use when the interface needs a fast cleanup or polish pass.
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Enforces an opinionated UI baseline to prevent AI-generated interface slop.
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## How to use
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- `/baseline-ui`
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Apply these constraints to any UI work in this conversation.
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- `/baseline-ui <file>`
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Review the file against all constraints below and output:
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- violations (quote the exact line/snippet)
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- why it matters (1 short sentence)
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- a concrete fix (code-level suggestion)
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## Stack
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- MUST use Tailwind CSS defaults unless custom values already exist or are explicitly requested
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- MUST use `motion/react` (formerly `framer-motion`) when JavaScript animation is required
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- SHOULD use `tw-animate-css` for entrance and micro-animations in Tailwind CSS
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- MUST use `cn` utility (`clsx` + `tailwind-merge`) for class logic
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## Components
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- MUST use accessible component primitives for anything with keyboard or focus behavior (`Base UI`, `React Aria`, `Radix`)
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- MUST use the project’s existing component primitives first
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- NEVER mix primitive systems within the same interaction surface
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- SHOULD prefer [`Base UI`](https://base-ui.com/react/components) for new primitives if compatible with the stack
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- MUST add an `aria-label` to icon-only buttons
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- NEVER rebuild keyboard or focus behavior by hand unless explicitly requested
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## Interaction
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- MUST use an `AlertDialog` for destructive or irreversible actions
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- SHOULD use structural skeletons for loading states
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- NEVER use `h-screen`, use `h-dvh`
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- MUST respect `safe-area-inset` for fixed elements
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- MUST show errors next to where the action happens
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- NEVER block paste in `input` or `textarea` elements
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## Animation
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- NEVER add animation unless it is explicitly requested
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- MUST animate only compositor props (`transform`, `opacity`)
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- NEVER animate layout properties (`width`, `height`, `top`, `left`, `margin`, `padding`)
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- SHOULD avoid animating paint properties (`background`, `color`) except for small, local UI (text, icons)
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- SHOULD use `ease-out` on entrance
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- NEVER exceed `200ms` for interaction feedback
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- MUST pause looping animations when off-screen
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- SHOULD respect `prefers-reduced-motion`
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- NEVER introduce custom easing curves unless explicitly requested
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- SHOULD avoid animating large images or full-screen surfaces
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## Typography
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- MUST use `text-balance` for headings and `text-pretty` for body/paragraphs
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- MUST use `tabular-nums` for data
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- SHOULD use `truncate` or `line-clamp` for dense UI
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- NEVER modify `letter-spacing` (`tracking-*`) unless explicitly requested
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## Layout
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- MUST use a fixed `z-index` scale (no arbitrary `z-*`)
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- SHOULD use `size-*` for square elements instead of `w-*` + `h-*`
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## Performance
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- NEVER animate large `blur()` or `backdrop-filter` surfaces
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- NEVER apply `will-change` outside an active animation
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- NEVER use `useEffect` for anything that can be expressed as render logic
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## Design
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- NEVER use gradients unless explicitly requested
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- NEVER use purple or multicolor gradients
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- NEVER use glow effects as primary affordances
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- SHOULD use Tailwind CSS default shadow scale unless explicitly requested
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- MUST give empty states one clear next action
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- SHOULD limit accent color usage to one per view
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- SHOULD use existing theme or Tailwind CSS color tokens before introducing new ones
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## Limitations
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- Use this skill only when the task clearly matches its upstream source and local project context.
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- Verify commands, generated code, dependencies, credentials, and external service behavior before applying changes.
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- Do not treat examples as a substitute for environment-specific tests, security review, or user approval for destructive or costly actions.
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