Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add giuseppe-trisciuoglio/developer-kit --skill shadcn-uigit clone --depth 1 https://github.com/giuseppe-trisciuoglio/developer-kitWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/giuseppe-trisciuoglio/developer-kit/shadcn-ui)<a href="https://agentmods.dev/skills/giuseppe-trisciuoglio/developer-kit/shadcn-ui"><img src="https://agentmods.dev/badge/skills/giuseppe-trisciuoglio/developer-kit/shadcn-ui/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/giuseppe-trisciuoglio/developer-kit/shadcn-ui"><img src="https://agentmods.dev/badge/skills/giuseppe-trisciuoglio/developer-kit/shadcn-ui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00074 | $0.02861 |
| Opus 5 | $0.00037 | $0.01430 |
| Sonnet 5 | $0.00015 | $0.00572 |
| Haiku 4.5 | $0.00007 | $0.00286 |
Grade A, and why
shadcn-ui scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 312 lines — stays where its author put it; the contents beside it link to each section on GitHub.
shadcn/ui Component Patterns
Build accessible, customizable UI components with shadcn/ui, Radix UI, and Tailwind CSS.
Overview
- Components are copied into your project — you own and customize the code
- Built on Radix UI primitives for full accessibility
- Styled with Tailwind CSS and CSS variables for theming
- CLI-based installation:
npx shadcn@latest add <component>
When to Use
Activate when user requests involve:
- "Set up shadcn/ui", "initialize shadcn", "add shadcn components"
- "Install button/input/form/dialog/card/select/toast/table/chart"
- "React Hook Form", "Zod validation", "form with validation"
- "accessible components", "Radix UI", "Tailwind theme"
- "shadcn button", "shadcn dialog", "shadcn sheet", "shadcn table"
- "dark mode", "CSS variables", "custom theme"
- "charts with Recharts", "bar chart", "line chart", "pie chart"
Quick Reference
Available Components
| Component | Install Command | Description |
|---|---|---|
button |
npx shadcn@latest add button |
Variants: default, destructive, outline, secondary, ghost, link |
input |
npx shadcn@latest add input |
Text input field |
form |
npx shadcn@latest add form |
React Hook Form integration with validation |
card |
npx shadcn@latest add card |
Container with header, content, footer |
dialog |
npx shadcn@latest add dialog |
Modal overlay |
sheet |
npx shadcn@latest add sheet |
Slide-over panel (top/right/bottom/left) |
select |
npx shadcn@latest add select |
Dropdown select |
toast |
npx shadcn@latest add toast |
Notification toasts |
table |
npx shadcn@latest add table |
Data table |
menubar |
npx shadcn@latest add menubar |
Desktop-style menubar |
chart |
npx shadcn@latest add chart |
Recharts wrapper with theming |
textarea |
npx shadcn@latest add textarea |
Multi-line text input |
checkbox |
npx shadcn@latest add checkbox |
Checkbox input |
label |
npx shadcn@latest add label |
Accessible form label |
What ships with it
11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- references/chart.md 8.1 KB
- references/charts-components.md 5.8 KB
- references/customization.md 4.5 KB
- references/forms-and-validation.md 9.4 KB
- references/learn.md 3.5 KB
- references/nextjs-integration.md 3.9 KB
- references/official-ui-reference.md 51 KB
- references/reference.md 14 KB
- references/setup-and-configuration.md 5.7 KB
- references/ui-components.md 6.6 KB
- references/ui-reference.md 40 KB
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- today First seen · 312 lines · 74 tokens per session scan A e13702bb8ee2
shadcn-ui is a skill published in the GitHub repository giuseppe-trisciuoglio/developer-kit (343 stars, last pushed today), licensed MIT. It adds 74 tokens to every session and 2,861 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-10.
Other skills, from other repositories
web-artifacts-builder
Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.
frontend-ui-dark-ts
Build dark-themed React applications using Tailwind CSS with custom theming, glassmorphism effects, and Framer Motion animations. Use when creating dashboards, admin panels, or data-rich interfaces with a refined dark aesthetic.
web-design-engineer
Build or redesign polished browser-rendered visual artifacts with HTML/CSS/JavaScript/React: pages, dashboards, prototypes, slide decks, animations, UI mockups, and data visualizations. Use for visual front-end creation, design-system exploration, design critique, or explicit browser acceptance / QA of a web artifact.…
component-search
Search 21st.dev component registry for production-ready React components. Finds components by natural language description, filters by framework and style system, returns ranked results with install instructions. Use when looking for UI components, finding alternatives to existing components, or sourcing design system…
agentos-ui-ux
Design, review, or implement AgentOS UI and UX work using the project’s operator-console visual system. Use for React/Tailwind pages, cards, dialogs, mobile layouts, theme work, navigation, forms, empty/loading/error states, and UI consistency reviews in AgentOS.
generic-react-design-system
Complete design system reference for React applications. Covers colors, typography, spacing, component patterns, glassmorphism effects, GPU-accelerated animations, and WCAG AA accessibility. Use when implementing UI, choosing colors, applying spacing, creating components, or ensuring brand consistency.