Web Artifacts Builder
anthropics/skills
Builds multi-component claude.ai HTML artifacts as a small React, TypeScript and Tailwind project, then bundles it into one shareable HTML file.
React 19 conventions in ONE sites — client islands, @oneie/react hooks, no useEffect for ONE data.
Install React19
$ npx skills add one-ie/one --skill react19 -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install one-ie/one react19 --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/one-ie/one.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/react19 .claude/skills/react19 && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "react19" agent skill from https://github.com/one-ie/one/tree/main/.claude/skills/react19 into .claude/skills/react19/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react19", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/one-ie/one/tree/main/.claude/skills/react19Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add one-ie/one --skill react19 -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install one-ie/one react19 --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/one-ie/one.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/react19 .agents/skills/react19 && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "react19" agent skill from https://github.com/one-ie/one/tree/main/.claude/skills/react19 into .agents/skills/react19/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react19", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add one-ie/one --skill react19 -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install one-ie/one react19 --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/one-ie/one.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/react19 .cursor/skills/react19 && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "react19" agent skill from https://github.com/one-ie/one/tree/main/.claude/skills/react19 into .cursor/skills/react19/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react19", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/one-ie/one.git --path .claude/skills/react19--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add one-ie/one --skill react19 -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install one-ie/one react19 --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/one-ie/one.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/react19 .gemini/skills/react19 && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "react19" agent skill from https://github.com/one-ie/one/tree/main/.claude/skills/react19 into .gemini/skills/react19/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react19", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install one-ie/one react19Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add one-ie/one --skill react19 -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/one-ie/one.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/react19 .github/skills/react19 && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "react19" agent skill from https://github.com/one-ie/one/tree/main/.claude/skills/react19 into .github/skills/react19/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react19", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add one-ie/one --skill react19 -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install one-ie/one react19 --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/one-ie/one.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/react19 .opencode/skills/react19 && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "react19" agent skill from https://github.com/one-ie/one/tree/main/.claude/skills/react19 into .opencode/skills/react19/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react19", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
react19- GitHub stars
- 131
- Token cost
- ~349 tokens
- SKILL.md length
- 117 words
- Files
- 1
- Skills in repo
- 9
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
React 19 conventions in ONE sites — client islands, @oneie/react hooks, no useEffect for ONE data.
- Tasks that involve React components
- SKILL.md covers Islands, not pages, Use @oneie/react hooks for ONE…, React 19 specifics and Don't
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
React19 is an agent skill from one-ie/one. React 19 conventions in ONE sites — client islands, @oneie/react hooks, no useEffect for ONE data. Invoke when editing .tsx components.
Its SKILL.md is about 350 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Frontend & Design, covering React components. It works with React, Astro and shadcn/ui. The repository describes itself as: Make Your Ideas Real. Build Apps, Websites and AI Agents with Plain English with Astro, React, Shadcn and Cloudflare.
When your agent uses it
- Tasks that involve React components
Example prompts
- “/react19”
What it can do on your machine
Read from SKILL.md and the folder at commit 42ba8cd. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are astro and typescript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
React19 loads about 349 tokens when it runs. Until then it costs about 36 tokens; SKILL.md has 117 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 117 words (~349 tokens).
“React components are islands. A .tsx only runs in the browser when an .astro mounts it with a directive:”
- name
- react19
Files
Just SKILL.md in .claude/skills/react19 of one-ie/one.
Open the folder on GitHubat commit 42ba8cd
Compare with similar skills
React19 next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| React19 this skillone-ie/one | 131 | — | ~349 | Automated safety check: Pass | Custom licence | |
| Web Artifacts Builderanthropics/skills | 180k | 41 repos | ~769 | Automated safety check: Pass | Apache-2.0 | |
| Creative Tim UI Blockscreativetimofficial/ui | 12k | — | ~2.1k | Automated safety check: Notes | MIT | |
| Animated React Component LibrariesHainrixz/editor-pro-max | 261 | 1 repos | ~5.7k | Automated safety check: Pass | Custom licence | |
| React To Solidcarere/zaidan | 146 | 1 repos | ~1.6k | Automated safety check: Pass | MIT | |
| Tailwind To Stylexshadcn-labs/shadcn-cssinjs | 123 | — | ~2.7k | Automated safety check: Pass | MIT |
Similar skills
- Official
Creative Tim UI Blocks
creativetimofficial/ui
Helps install, generate and review Creative Tim UI blocks: shadcn/ui-based React and Tailwind sections that follow a restrained, production-minded design philosophy.
Animated React Component Libraries
Hainrixz/editor-pro-max
Helps choose and drop in animated React components from Magic UI and React Bits for landing pages, marketing sites and dashboards, instead of hand-coding animations.
React To Solid
carere/zaidan
React-to-SolidJS transformation patterns for porting shadcn-style React components, examples, docs snippets, and blocks into Zaidan.
Tailwind To Stylex
shadcn-labs/shadcn-cssinjs
Migrate TailwindCSS to StyleX. An agent skill from shadcn-labs/shadcn-cssinjs.
Reactflow Workflow
veloxbase/veloxdb
Build and harden React Flow diagram surfaces in VeloxDB using @xyflow/react patterns (nodes, edges, viewport, controls, interactions, performance).
More from one-ie/one
All 9 skills in this repoAstro
one-ie/one
Astro 7 conventions for ONE sites — plugin wiring via one.config.ts, OneChat/OneTrack placement, Cloudflare SSR.
SDK
one-ie/one
Use the ONE backend (@oneie/sdk) from this frontend via the plugin-backend wrapper.
Shadcn
one-ie/one
shadcn/ui under the ONE 6-token design system — CSS var tokens only, no hex, add components via the CLI.
Declare Types
one-ie/one
Give this workspace a resource type — products, lessons, tickets, whatever the business actually tracks — by writing one TOML file, so navigation, a searchable index, a detail page and a create/edit…
Publish
one-ie/one
Put words on this site — a blog post, a docs page, a product, or a live page from ONE's editor.
Workflow
one-ie/one
Write a workflow this site will actually run — the eight step kinds, the fenced graph block that makes it executable, and the trap where beautifully-written prose compiles to a workflow with zero…
Related
Categories
Questions about React19
What does React19 do?
React 19 conventions in ONE sites — client islands, @oneie/react hooks, no useEffect for ONE data. React19 is an agent skill from one-ie/one. React 19 conventions in ONE sites — client islands, @oneie/react hooks, no useEffect for ONE data.
When should I use React19?
React19 fits situations like: tasks that involve React components.
How do I install React19 in Claude Code?
Run `npx skills add one-ie/one --skill react19 -a claude-code`. Or copy the skill folder (.claude/skills/react19 in one-ie/one) into .claude/skills/react19 in your project. Claude Code loads it when a task matches its description.
How do I install React19 in Codex?
Run `npx skills add one-ie/one --skill react19 -a codex`. Or copy the skill folder (.claude/skills/react19 in one-ie/one) into .agents/skills/react19 in your project. Codex loads it when a task matches its description.
Can I use React19 in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add one-ie/one --skill react19 -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/react19, .gemini/skills/react19, .github/skills/react19 and .opencode/skills/react19 in your project.
What does React19 need to run?
SKILL.md names no scripts, command-line tools or credentials: React19 is instructions for the agent only.
Does React19 access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is React19 safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does React19 use?
React19 has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does React19 use?
About 349 tokens (SKILL.md is roughly 1.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to React19?
Skills that share tags, products or a category with React19: Web Artifacts Builder (anthropics/skills, 180k stars), Creative Tim UI Blocks (creativetimofficial/ui, 12k stars), Animated React Component Libraries (Hainrixz/editor-pro-max, 261 stars) and React To Solid (carere/zaidan, 146 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains React19?
one-ie (a GitHub organization) maintains it in one-ie/one, which has 131 GitHub stars. The repository holds 9 skills in this directory. The repository was last updated on September 28, 2026.
Source: one-ie/one on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.