This file is byte-identical to the first copy the registry indexed, one of 15 indexed copies. Same content hash, so the same checks give both the same grade.
web-artifacts-builder from canvascoding/canvas-notebook is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
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.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# 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)
…
The line at the top of this page pins the label git:20260501.abb0337, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (3087 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag
Source
GitHub
canvascoding/canvas-notebook · 12 stars · license a license file GitHub does not identify · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xn2cs74ruwkqxfki
GET https://markdownregistry.com/api/v1/resolve?ref=canvascoding/canvas-notebook/web-artifacts-builder
GET https://markdownregistry.com/api/v1/blob/81c5002c6643b0de7b8710b00e7a9038daa6fb9b68d59870ee6adb12da8d10f8
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
canvascoding/canvas-notebook · .claude/skills/SKILL.md · Fetch dependency source code to give AI agents deeper implementation context. Use when the agent needs to understand…
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canvascoding/canvas-notebook · .claude/skills/gitnexus/gitnexus-debugging/SKILL.md · Use when the user is debugging a bug, tracing an error, or asking why something fails. Examples: "Why is X failing?"…
canvascoding/canvas-notebook · .claude/skills/gitnexus/gitnexus-exploring/SKILL.md · Use when the user asks how code works, wants to understand architecture, trace execution flows, or explore unfamiliar…
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canvascoding/canvas-notebook · .claude/skills/gitnexus/gitnexus-impact-analysis/SKILL.md · Use when the user wants to know what will break if they change something, or needs safety analysis before editing code…
canvascoding/canvas-notebook · .claude/skills/gitnexus/gitnexus-refactoring/SKILL.md · Use when the user wants to rename, extract, split, move, or restructure code safely. Examples: "Rename this function"…
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majiayu000/spellbook · skills/web-artifacts-builder/SKILL.md · Use when creating elaborate, multi-component claude.ai HTML artifacts with React, Tailwind CSS, shadcn/ui, state…
razshy/wiggle · mnt-skills/examples/web-artifacts-builder/SKILL.md · Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies…
aizenvoltprime/damocles · .claude/skills/web-artifacts-builder/SKILL.md · Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies…
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naveedharri/benai-skills · plugins/all-skills/skills/web-artifacts-builder/SKILL.md · Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies…