What is web-artifacts-builder?

A toolkit for building complex HTML web interfaces with React, Tailwind CSS, and shadcn/ui, a library of ready-made interface components. It is intended for interfaces with multiple components, saved state, or page navigation, not simple one-file pages.

It helps create multi-part Claude.ai HTML artifacts with state management, routing, and shadcn/ui components.

It gives an agent guidance for organizing larger web interfaces when a single HTML or JSX file is not enough.

web-artifacts-builder — Skill for Claude Code by MarcelLeon/skills-zh

Install

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.

Any agent

npx skills add MarcelLeon/skills-zh --skill web-artifacts-builder

Clone the repo

git clone --depth 1 https://github.com/MarcelLeon/skills-zh

Made for: Claude Code.

Or install example-skills, the plugin that ships this one along with the rest of its 12 skills.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/marcelleon/skills-zh/web-artifacts-builder/github.svg)](https://agentmods.dev/skills/marcelleon/skills-zh/web-artifacts-builder)

Your own site

<a href="https://agentmods.dev/skills/marcelleon/skills-zh/web-artifacts-builder"><img src="https://agentmods.dev/badge/skills/marcelleon/skills-zh/web-artifacts-builder/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/marcelleon/skills-zh/web-artifacts-builder"><img src="https://agentmods.dev/badge/skills/marcelleon/skills-zh/web-artifacts-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 795 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown No closer match found in the catalogue.

Token cost

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	$0.00070	$0.00795
Opus 5.5	$0.00028	$0.00318
Sonnet 5.5	$0.00014	$0.00159
Haiku 4.5	$0.00007	$0.00080

Measured 2mo ago against content hash 3fa89ad837f9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

web-artifacts-builder 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 2mo ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/bundle-artifact.sh, scripts/init-artifact.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/web-artifacts-builder/SKILL.md · 75 lines

The source is not reproduced here

No licence file

Read it on GitHub

Files

What ships with it

4 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.

Changes

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.

2mo ago First seen · 75 lines · 70 tokens per session scan A 3fa89ad837f9

Subscribe to this mod's changes

web-artifacts-builder is a skill published in the GitHub repository MarcelLeon/skills-zh (42 stars, last pushed 7d ago), with no licence file. It adds 70 tokens to every session and 795 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-08-30.

CSS and styling Design and UX Frontend React

web-artifacts-builder next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
web-artifacts-builderMarcelLeon/skills-zh	Skill	42	7d ago	none	A	70	Claude Code
chakra-ui-builderchakra-ui/chakra-ui	Skill	41k	yesterday	MIT	A	214	Claude Code, Codex
antigravity-design-expertsickn33/agentic-awesome-skills	Skill	49k	2d ago	MIT	A	39	Claude Code
tamagui-v6-configtamagui/tamagui	Skill	14k	today	MIT	A	0	Claude Code, Codex
tamagui-theme-generatortamagui/tamagui	Skill	14k	today	MIT	A	48	Claude Code, Codex
liquid-metal-borderMengTo/Skills	Skill	7.3k	yesterday	MIT	A	97	Codex
frontend-ui-dark-tsmicrosoft/skills	Skill	3.2k	2d ago	MIT	A	48	Claude Code