artifacts-builder

artifacts-builder is a skill for Claude Code from alleneee/skill-agent. It costs 63 tokens per session (696 once invoked), scanned A, original, no licence file.

A toolkit and guide for building complex HTML experiences for Claude.ai with React, Tailwind CSS, and shadcn/ui. It is intended for projects with several parts, such as navigation or saved interface state.

In plain words
What is it for?
Use it when creating Claude.ai HTML artifacts that need multiple components, navigation between views, stored interface state, or shadcn/ui components.
Why use it?
It gives larger interactive web artifacts a consistent structure and the technologies needed to build them. It is meant for complex pieces rather than a simple one-file HTML or JSX document.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the example-skills plugin — 9 skills shipped together

Good fit Use it when creating Claude.ai HTML artifacts that need multiple components, navigation between views, stored interface state, or shadcn/ui components.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/alleneee/skill-agent/artifacts-builder
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 alleneee/skill-agent --skill artifacts-builder
Clone the repo
git clone --depth 1 https://github.com/alleneee/skill-agent

Made for: Claude Code.

Or install example-skills, the plugin that ships this one along with the rest of its 9 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.

agentmods badge for artifacts-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/alleneee/skill-agent/artifacts-builder/github.svg)](https://agentmods.dev/skills/alleneee/skill-agent/artifacts-builder)
Your own site
<a href="https://agentmods.dev/skills/alleneee/skill-agent/artifacts-builder"><img src="https://agentmods.dev/badge/skills/alleneee/skill-agent/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.

agentmods 80×15 button for artifacts-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/alleneee/skill-agent/artifacts-builder"><img src="https://agentmods.dev/badge/skills/alleneee/skill-agent/artifacts-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 696 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. Third-party audits
  • Socket pass 13 Apr 2026
  • Snyk pass 13 Apr 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00063 $0.00696
Opus 5.5 $0.00025 $0.00278
Sonnet 5.5 $0.00013 $0.00139
Haiku 4.5 $0.00006 $0.00070

Measured 1mo ago against content hash 8455a64e627d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 1mo 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.

src/omni_agent/skills/artifacts-builder/SKILL.md · 74 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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.

  1. 1mo ago First seen · 74 lines · 63 tokens per session scan A 8455a64e627d

Subscribe to this mod's changes

artifacts-builder is a skill published in the GitHub repository alleneee/skill-agent (27 stars, last pushed 7mo ago), with no licence file. It adds 63 tokens to every session and 696 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.

Related

Other skills, from other repositories

harness-creator

Build, audit, and improve harnesses that make AI coding agents reliable: AGENTS.md/CLAUDE.md instruction files, feature/state tracking, verification gates, scope boundaries, session handoff, memory persistence, context budgets, tool-permission safety, and multi-agent coordination. Use this whenever a coding agent is…

walkinglabs/learn-harness-engineering · 142 tokens

openloomi-memory

OpenLoomi Memory is the long-lived context layer of OpenLoomi — a tiered, locally-stored knowledge graph that grows on its own from your Connectors, chats, and Screen Capture. Memory is what makes Chat grounded and what Loop reads before it produces a Decision. It is always on your machine (local-first), always…

melandlabs/openloomi · 74 tokens

continual-learn

Persist learning across turns by actively maintaining MENTALMODEL.md in the workspace. Use for iterative coding, debugging, benchmarking, or any feedback-driven task; read and update the file with actual filesystem writes before every response, never just hidden/internal memory.

melandlabs/openloomi · 55 tokens

obsidian

Use the official Obsidian CLI (v1.12+) to manage vaults, notes, daily notes, search, tasks, tags, properties, links, templates, sync, publish, and workspaces. Use when the user mentions Obsidian, vaults, notes, or wants to automate note-taking and knowledge base workflows.

lvndry/jazz · 71 tokens

knowledge-session-state-and-context-active-turn-interactions-and-recovery

A session runtime component that coordinates the current task, user input, permissions, questions, and recovery after a crash or restart.

echoVic/blade-code · 161 tokens

knowledge-session-state-and-context-compaction-pipeline-and-checkpoints

A context-compression component that reduces the conversation sent to the model when it approaches its input limit while keeping the full history stored.

echoVic/blade-code · 144 tokens