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 agentmods add skills/fusengine/agents/nextjs-shadcnnpx skills add fusengine/agents --skill nextjs-shadcngit clone --depth 1 https://github.com/fusengine/agentsWrote 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/fusengine/agents/nextjs-shadcn)<a href="https://agentmods.dev/skills/fusengine/agents/nextjs-shadcn"><img src="https://agentmods.dev/badge/skills/fusengine/agents/nextjs-shadcn.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00034 | $0.01709 |
| Opus 5 | $0.00017 | $0.00855 |
| Sonnet 5 | $0.00007 | $0.00342 |
| Haiku 4.5 | $0.00003 | $0.00171 |
Grade A, and why
nextjs-shadcn 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 yesterday.
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.
Copies of this mod
1 near-identical copy found in the catalogue:
- react-shadcn — 88% identical, 21 lines differ
How it starts
The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Requires installing components via bunx --bun shadcn@latest add (never hand-written) to @/modules/cores/shadcn/components/ui/, and covers MCP registry tools (mcp__shadcn__*) for discovering components before implementing. This is the Next.js App Router variant of shadcn/ui — for a plain React/Vite app see react-shadcn instead.
shadcn/ui for Next.js
Beautiful, accessible components built on Radix UI with Tailwind CSS styling.
Agent Workflow (MANDATORY)
Before ANY implementation, use TeamCreate to spawn 3 agents:
- fuse-ai-pilot:explore-codebase - Analyze existing components and patterns
- fuse-ai-pilot:research-expert - Verify latest shadcn/ui docs via Context7/Exa
- mcp__shadcn__* - Search registry for component availability
After implementation, run fuse-ai-pilot:sniper for validation.
Overview
When to Use
- Building UI components for Next.js App Router applications
- Need accessible, customizable form components (inputs, selects, checkboxes)
- Implementing dialogs, sheets, drawers, or overlay patterns
- Creating data tables with sorting, filtering, and pagination
- Building navigation menus, sidebars, or command palettes
- Need toast notifications or alert feedback components
Why shadcn/ui
| Feature | Benefit |
|---|---|
| Copy/paste model | Components copied to your project, full ownership |
| Radix UI foundation | Accessibility built-in, unstyled primitives |
| Tailwind CSS styling | Utility-first, easy customization |
| TanStack Form ready | Modern form library with Field pattern |
| Server Components | RSC-compatible, optimal bundle size |
| Lucide icons | Consistent, customizable icon set |
What ships with it
51 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/accordion.md 10 KB
- references/alert-dialog.md 7.4 KB
- references/alert.md 4.3 KB
- references/aspect-ratio.md 7.4 KB
- references/avatar.md 9.4 KB
- references/badge.md 8.4 KB
- references/breadcrumb.md 13 KB
- references/button.md 8.6 KB
- references/calendar.md 13 KB
- references/card.md 12 KB
- references/carousel.md 12 KB
- references/chart.md 12 KB
- references/checkbox.md 16 KB
- references/collapsible.md 11 KB
- references/command.md 12 KB
- references/configuration.md 6.7 KB
- references/context-menu.md 10 KB
- references/dialog.md 15 KB
- references/drawer.md 11 KB
- references/dropdown.md 7.3 KB
- references/field-patterns.md 2.5 KB
- references/form-examples.md 4.7 KB
- references/hover-card.md 8.0 KB
- references/input-otp.md 12 KB
- references/input.md 12 KB
- references/installation.md 3.9 KB
- references/label.md 5.0 KB
- references/menubar.md 16 KB
- references/navigation-menu.md 20 KB
- references/pagination.md 18 KB
- references/popover.md 5.8 KB
- references/progress.md 7.1 KB
- references/radio-group.md 11 KB
- references/resizable.md 10 KB
- references/scroll-area.md 6.7 KB
- references/select.md 9.5 KB
- references/separator.md 5.0 KB
- references/sheet.md 12 KB
- references/sidebar.md 18 KB
- references/skeleton.md 6.5 KB
- references/slider.md 9.9 KB
- references/spinner.md 8.8 KB
- references/switch.md 11 KB
- references/table.md 8.7 KB
- references/tabs.md 8.6 KB
- references/textarea.md 8.0 KB
- references/theming.md 12 KB
- references/toast.md 13 KB
- references/toggle-group.md 11 KB
- references/toggle.md 8.6 KB
- references/tooltip.md 6.4 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.
- yesterday First seen · 135 lines · 34 tokens per session scan A 8347157400cc
nextjs-shadcn is a skill published in the GitHub repository fusengine/agents (25 stars, last pushed 1mo ago), licensed MIT. It adds 34 tokens to every session and 1,709 once invoked, about $0.0002 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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