Shadcn Layouts

What it does

When your agent uses it

• Asks to create a shadcn layout
• Fix layout issues
• Debug CSS height problems
• Make scrolling work

Example prompts

• “create a shadcn layout”
• “fix layout issues”
• “debug CSS height problems”
• “/shadcn-layouts”

Requirements

• Node.js
• Compatibility (from SKILL.md): Works with shadcn/ui, Tailwind CSS v3/v4, React, Next.js.

What it can do on your machine

Read from SKILL.md and the folder at commit e02ec7e. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • npx

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

• Compatibility

  Works with shadcn/ui, Tailwind CSS v3/v4, React, Next.js.

  From compatibility in the SKILL.md frontmatter.

Context cost

Shadcn Layouts loads about 1.5k tokens when it runs, and up to ~8.7k if it reads all its reference files. Until then it costs about 88 tokens; SKILL.md has 424 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~88

When it runs · the whole SKILL.md, loaded when a task matches

~1.5k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~8.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jwynia/agent-skills at commit e02ec7e, republished under its MIT licence (© jwynia). 424 words, ~1,481 tokens.

name

shadcn-layouts

description

Generate correct shadcn/Tailwind layouts by applying CSS mental models. This skill should be used when the user asks to 'create a shadcn layout', 'fix layout issues', 'debug CSS height problems', 'make scrolling work', or has issues with Tailwind flex/grid. Keywords: shadcn, Tailwind, layout, CSS, flex, grid, height, scroll, overflow.

compatibility

Works with shadcn/ui, Tailwind CSS v3/v4, React, Next.js.

license

MIT

metadata.author

jwynia

metadata.version

1.0

metadata.type

utility

metadata.mode

generative

metadata.domain

development

BROKEN (chain incomplete):
<html>                        <!-- no height -->
  <body>                      <!-- no height -->
    <div class="h-full">      <!-- 100% of nothing = 0 -->

WORKING (chain complete):
<html class="h-full">         <!-- 100% of viewport -->
  <body class="h-full">       <!-- 100% of html -->
    <div class="h-full">      <!-- 100% of body = works -->

// BROKEN (won't scroll)
<div className="flex flex-col h-screen">
  <main className="flex-1 overflow-y-auto">  {/* Can't shrink! */}

// WORKING (scrolls correctly)
<div className="flex flex-col h-screen">
  <main className="flex-1 overflow-y-auto min-h-0">  {/* Can shrink */}

// BROKEN
<div className="grid-cols-3">           {/* Missing 'grid'! */}

// WORKING
<div className="grid grid-cols-3">      {/* 'grid' enables grid-cols-* */}

// BROKEN (never scrolls)
<ScrollArea>  {/* No height constraint */}

// WORKING (flex-constrained)
<div className="flex flex-col h-screen">
  <ScrollArea className="flex-1 min-h-0">

// layout.tsx
<html lang="en" className="h-full">
  <body className="h-full">{children}</body>
</html>

// page.tsx
<div className="flex h-full">
  <aside className="w-64 shrink-0 border-r overflow-y-auto">
    <nav>...</nav>
  </aside>
  <main className="flex-1 min-w-0 overflow-y-auto">
    {children}
  </main>
</div>

<div className="flex flex-col h-screen">
  <header className="h-16 shrink-0 border-b">...</header>
  <div className="flex flex-1 min-h-0">
    <aside className="w-64 shrink-0 border-r overflow-y-auto">...</aside>
    <main className="flex-1 min-w-0 overflow-y-auto p-6">
      {children}
    </main>
  </div>
</div>

<div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
  {items.map(item => (
    <Card key={item.id}>
      <CardHeader><CardTitle>{item.title}</CardTitle></CardHeader>
      <CardContent>{item.content}</CardContent>
    </Card>
  ))}
</div>

© jwynia, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in skills/tech/frontend/design/shadcn-layouts of jwynia/agent-skills.

• SKILL.md
• references/component-checklist.md
• references/layout-templates.md

Open the folder on GitHubat commit e02ec7e