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web-artifacts-builder skill

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This skill helps you build complex Claude AI HTML artifacts using React, Tailwind, and shadcn/ui with bundling into a single reusable file.

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SKILL.md

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---
name: web-artifacts-builder
description: 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.
license: Complete terms in LICENSE.txt
---

# Web Artifacts Builder

To build powerful frontend claude.ai artifacts, follow these steps:
1. Initialize the frontend repo using `scripts/init-artifact.sh`
2. Develop your artifact by editing the generated code
3. Bundle all code into a single HTML file using `scripts/bundle-artifact.sh`
4. Display artifact to user
5. (Optional) Test the artifact

**Stack**: React 18 + TypeScript + Vite + Parcel (bundling) + Tailwind CSS + shadcn/ui

## Design & Style Guidelines

VERY IMPORTANT: To avoid what is often referred to as "AI slop", avoid using excessive centered layouts, purple gradients, uniform rounded corners, and Inter font.

## Quick Start

### Step 1: Initialize Project

Run the initialization script to create a new React project:
```bash
bash scripts/init-artifact.sh <project-name>
cd <project-name>
```

This creates a fully configured project with:
- ✅ React + TypeScript (via Vite)
- ✅ Tailwind CSS 3.4.1 with shadcn/ui theming system
- ✅ Path aliases (`@/`) configured
- ✅ 40+ shadcn/ui components pre-installed
- ✅ All Radix UI dependencies included
- ✅ Parcel configured for bundling (via .parcelrc)
- ✅ Node 18+ compatibility (auto-detects and pins Vite version)

### Step 2: Develop Your Artifact

To build the artifact, edit the generated files. See **Common Development Tasks** below for guidance.

### Step 3: Bundle to Single HTML File

To bundle the React app into a single HTML artifact:
```bash
bash scripts/bundle-artifact.sh
```

This creates `bundle.html` - a self-contained artifact with all JavaScript, CSS, and dependencies inlined. This file can be directly shared in Claude conversations as an artifact.

**Requirements**: Your project must have an `index.html` in the root directory.

**What the script does**:
- Installs bundling dependencies (parcel, @parcel/config-default, parcel-resolver-tspaths, html-inline)
- Creates `.parcelrc` config with path alias support
- Builds with Parcel (no source maps)
- Inlines all assets into single HTML using html-inline

### Step 4: Share Artifact with User

Finally, share the bundled HTML file in conversation with the user so they can view it as an artifact.

### Step 5: Testing/Visualizing the Artifact (Optional)

Note: This is a completely optional step. Only perform if necessary or requested.

To test/visualize the artifact, use available tools (including other Skills or built-in tools like Playwright or Puppeteer). In general, avoid testing the artifact upfront as it adds latency between the request and when the finished artifact can be seen. Test later, after presenting the artifact, if requested or if issues arise.

## Reference

- **shadcn/ui components**: https://ui.shadcn.com/docs/components

Overview

This skill is a suite of tools for building elaborate, multi-component HTML artifacts for claude.ai using modern frontend technologies. It scaffolds a React + TypeScript project prewired with Tailwind CSS and shadcn/ui, and produces a single self-contained HTML file you can share directly in conversations. Use it when your artifact requires state, routing, or component libraries beyond a single-file snippet.

How this skill works

Initialize a ready-made frontend project with an initialization script that creates a Vite + React app configured for shadcn/ui and Tailwind. Develop your UI using the provided folder layout and components, then run the bundling script to produce a single inlined bundle.html containing all JS, CSS, and assets. Optionally test or preview the artifact with external tools before or after sharing it in conversation.

When to use it

You need a complex UI with state management, routing, or multiple pages.
You want to use shadcn/ui components or Radix primitives in an artifact.
You require Tailwind-based theming and a consistent design system.
You need a single self-contained HTML file to embed or send in chat.
You are building interactive demos, small apps, or multi-component widgets.

Best practices

Avoid common AI-generated UI pitfalls: no excessive centered layouts, purple gradients, uniform rounded corners, or default Inter everywhere.
Keep index.html present in the project root to ensure bundling succeeds.
Develop iteratively: first scaffold, then add features, then bundle only when stable to reduce bake time.
Prefer testing after sharing only if issues are reported to avoid blocking delivery.
Use path aliases and the provided shadcn/ui components to accelerate consistent UI patterns.

Example use cases

An interactive form with conditional steps and client-side validation using React state.
A mini-dashboard with routing, charts, and several shadcn/ui components bundled into one file.
A guided onboarding flow that leverages Tailwind theming and Radix-based UI primitives.
A component-heavy demo that needs to run standalone inside a chat window without external assets.

FAQ

What does the bundle script produce?

It produces bundle.html: a single inlined HTML file containing all JavaScript, CSS, and assets for direct sharing.

Do I need Node 18+?

Yes. The tooling auto-detects and targets Node 18+ to ensure compatible Vite and Parcel behavior.