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 jezweb/claude-skills --skill shadcn-uigit clone --depth 1 https://github.com/jezweb/claude-skillsWrote 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/jezweb/claude-skills/shadcn-ui)<a href="https://agentmods.dev/skills/jezweb/claude-skills/shadcn-ui"><img src="https://agentmods.dev/badge/skills/jezweb/claude-skills/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/jezweb/claude-skills/shadcn-ui"><img src="https://agentmods.dev/badge/skills/jezweb/claude-skills/shadcn-ui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00077 | $0.01355 |
| Opus 5 | $0.00039 | $0.00678 |
| Sonnet 5 | $0.00015 | $0.00271 |
| Haiku 4.5 | $0.00008 | $0.00136 |
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 7d ago.
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 — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.
shadcn/ui Components
Add shadcn/ui components to a themed React project. This skill runs AFTER tailwind-theme-builder has set up CSS variables, ThemeProvider, and dark mode. It handles component installation, customisation, and combining components into working patterns.
Prerequisite: Theme infrastructure must exist (CSS variables, components.json, cn() utility). Use tailwind-theme-builder first if not set up.
Installation Order
Install components in dependency order. Foundation components first, then feature components:
Foundation (install first)
pnpm dlx shadcn@latest add button
pnpm dlx shadcn@latest add input label
pnpm dlx shadcn@latest add card
Feature Components (install as needed)
# Forms
pnpm dlx shadcn@latest add form # needs: react-hook-form, zod, @hookform/resolvers
pnpm dlx shadcn@latest add textarea select checkbox switch
# Feedback
pnpm dlx shadcn@latest add toast # needs: sonner
pnpm dlx shadcn@latest add alert badge
# Overlay
pnpm dlx shadcn@latest add dialog sheet popover dropdown-menu
# Data Display
pnpm dlx shadcn@latest add table # for data tables, also: @tanstack/react-table
pnpm dlx shadcn@latest add tabs separator avatar
# Navigation
pnpm dlx shadcn@latest add navigation-menu command
External Dependencies
| Component | Requires |
|---|---|
| Form | react-hook-form, zod, @hookform/resolvers |
| Toast | sonner |
| Data Table | @tanstack/react-table |
| Command | cmdk |
| Date Picker | date-fns (optional) |
Install external deps separately: pnpm add react-hook-form zod @hookform/resolvers
Known Gotchas
These are documented corrections that prevent common bugs:
Radix Select — No Empty Strings
// Don't use empty string values
<SelectItem value="">All</SelectItem> // BREAKS
// Use sentinel value
<SelectItem value="__any__">All</SelectItem> // WORKS
const actual = value === "__any__" ? "" : value
React Hook Form — Null Values
What ships with it
2 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.
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.
- 7d ago First seen · 183 lines · 77 tokens per session scan A 496172176a69
shadcn-ui is a skill published in the GitHub repository jezweb/claude-skills (1,000 stars, last pushed 2mo ago), licensed MIT. It adds 77 tokens to every session and 1,355 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 2026-09-03.
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