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.
Implements and documents @reatom/jsx — reactive native DOM JSX.
Install Reatom Jsx
$ npx skills add reatom/reatom --skill reatom-jsx -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install reatom/reatom reatom-jsx --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/reatom/reatom.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/reatom-jsx .claude/skills/reatom-jsx && 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 "reatom-jsx" agent skill from https://github.com/reatom/reatom/tree/v1001/skills/reatom-jsx into .claude/skills/reatom-jsx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reatom-jsx", 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/reatom/reatom/tree/v1001/skills/reatom-jsxType 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 reatom/reatom --skill reatom-jsx -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install reatom/reatom reatom-jsx --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/reatom/reatom.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/reatom-jsx .agents/skills/reatom-jsx && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "reatom-jsx" agent skill from https://github.com/reatom/reatom/tree/v1001/skills/reatom-jsx into .agents/skills/reatom-jsx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reatom-jsx", 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 reatom/reatom --skill reatom-jsx -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install reatom/reatom reatom-jsx --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/reatom/reatom.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/reatom-jsx .cursor/skills/reatom-jsx && 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 "reatom-jsx" agent skill from https://github.com/reatom/reatom/tree/v1001/skills/reatom-jsx into .cursor/skills/reatom-jsx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reatom-jsx", 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/reatom/reatom.git --path skills/reatom-jsx--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 reatom/reatom --skill reatom-jsx -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install reatom/reatom reatom-jsx --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/reatom/reatom.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/reatom-jsx .gemini/skills/reatom-jsx && 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 "reatom-jsx" agent skill from https://github.com/reatom/reatom/tree/v1001/skills/reatom-jsx into .gemini/skills/reatom-jsx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reatom-jsx", 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 reatom/reatom reatom-jsxInstalls 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 reatom/reatom --skill reatom-jsx -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/reatom/reatom.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/reatom-jsx .github/skills/reatom-jsx && 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 "reatom-jsx" agent skill from https://github.com/reatom/reatom/tree/v1001/skills/reatom-jsx into .github/skills/reatom-jsx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reatom-jsx", 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 reatom/reatom --skill reatom-jsx -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install reatom/reatom reatom-jsx --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/reatom/reatom.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/reatom-jsx .opencode/skills/reatom-jsx && 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 "reatom-jsx" agent skill from https://github.com/reatom/reatom/tree/v1001/skills/reatom-jsx into .opencode/skills/reatom-jsx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reatom-jsx", 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
reatom-jsx- GitHub stars
- 1.4k
- Token cost
- ~1.1k tokens
- SKILL.md length
- 417 words
- Files
- 2
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- MIT
At a glance
Implements and documents @reatom/jsx — reactive native DOM JSX.
- Works in 3 steps: Read the relevant sections of… → For Reatom core (atoms, wrap, async,… → For pull requests and skeptic…
- Writing JSX components
- SKILL.md covers How to use, Section map and Implementation defaults
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Reatom Jsx is an agent skill from reatom/reatom. Implements and documents @reatom/jsx — reactive native DOM JSX. Use when writing JSX components, mount/unmount, props (prop:/attr:/on:), css prop, models, refs, SVG, Bind, or TypeScript JSX typings with Reatom.
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `REFERENCE.md`).
It sits in Frontend & Design, covering React components. It works with TypeScript and React. The repository describes itself as: Reatom - the ultimate state manager. The licence is MIT.
When your agent uses it
- Writing JSX components
- Props (prop:/attr:/on:)
- TypeScript JSX typings with Reatom
Example prompts
- “Use the reatom-jsx skill to implement and documents @reatom/jsx — reactive native DOM JSX”
- “/reatom-jsx”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Read the relevant sections of REFERENCE.md — do not assume React/Vue JSX semantics (no virtual DOM, no diffing, no component re-renders).
- For Reatom core (atoms, wrap, async, routing), use the reatom skill.
- For pull requests and skeptic validation, use reatom-review plus this skill for JSX-specific patterns.
What it can do on your machine
Read from SKILL.md and the folder at commit 1b853c5. 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.
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
Reatom Jsx loads about 1.1k tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 417 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
The full file from reatom/reatom at commit 1b853c5, republished under its MIT licence (© reatom). 417 words, ~1,088 tokens.
Download SKILL.mdSave it as
.claude/skills/reatom-jsx/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- reatom-jsx
- description
- Implements and documents @reatom/jsx — reactive native DOM JSX. Use when writing JSX components, mount/unmount, props (prop:/attr:/on:), css prop, models, refs, SVG, Bind, or TypeScript JSX typings with Reatom.
Reatom JSX
Use this skill when implementing or explaining @reatom/jsx. Treat REFERENCE.md as the canonical reference bundled with this skill.
How to use
- Read the relevant sections of REFERENCE.md — do not assume React/Vue JSX semantics (no virtual DOM, no diffing, no component re-renders).
- For Reatom core (atoms, wrap, async, routing), use the
reatomskill. - For pull requests and skeptic validation, use
reatom-reviewplus this skill for JSX-specific patterns.
Section map
Use this map to open only the relevant parts of REFERENCE.md:
| Topic | Section |
|---|---|
| Install, tsconfig, Vite | Installation, Framework compatibility |
| Bootstrapping the app | Example, Hot module replacement |
| Props, children, bindings | Reference → Props, Children, Models |
| Inline and css-prop styles | Reference → style props, style:*, CSS-in-JS |
| Class names | Reference → class or className, reatomClassName |
| Conditional / theme styles | Reference → Conditional Styles with Attributes, cssVar |
| Components and lists | Reference → Components |
| Bulk prop binding | Reference → $spread |
| SVG and raw markup | Reference → SVG |
| Mount side effects | Reference → ref props |
| Errors, boundaries, jsxError | Error handling |
| Utilities | Utilities → reatomClassName, css, cssVar, <Bind> |
| TypeScript | TypeScript |
| SSR and keyed lists | Limitations |
Implementation defaults
- Components are plain functions evaluated once at mount; use atoms and reactive props for updates.
- Reads: zero-arg atom call. Writes:
.set(...). on:*handlers that touch Reatom state are wrapped automatically; do not wrap manually in JSX.- Never reuse a JSX element instance in multiple places — call the component function or factory each time.
- Plain writable atoms:
model:value/model:checkedfor search, toggles, linked-list row atoms. - Real forms:
reatomFormfrom@reatom/corewith<form model={form}>andmodel:field={form.fields.x}— nevermodel:valueon field atoms (bypassesfield.change). - Form submit loader: style
[data-submitting]on the form (set automatically bymodel={form}); CSS-only spinner on[type='submit']::after. - For SPA navigation use
reatomRoute: links viahref={route.path(params)}, programmatic moves viaroute.go(params)— see thereatomskill Routing section. - Use
prop:*for DOM properties,attr:*for attributes when semantics matter. - Mount with
mount(root, <App />); callunmount()on teardown (including Vite HMR). Prefer@reatom/vite(reatom()plugin) so mount/route HMR dispose is automatic. - For dynamic lists, store elements in atoms or map inside reactive children — no keyed reconciliation.
- Isolate UI failures with
<ErrorBoundary fallback={...}>and lazy children{() => <Child />}; track globally viajsxError/addCallHook(jsxError, ...). - Never write
[data-x] &(or:where(...) &) in acssprop. State on the same element: binddata-x={state}and select&[data-x='v']. State from an ancestor: provide it withcssVar(...).provide(state)and query${token.container('v')} { … }. Prefer custom properties for value differences and reactive children for content differences; reserve selectors and style queries for structural differences.
Show full SKILL.md (17 more words)Show less
When REFERENCE.md and local examples disagree, prefer the reference and fix the example if it is wrong.
© reatom, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file in skills/reatom-jsx of reatom/reatom.
- SKILL.md
- REFERENCE.md
Open the folder on GitHubat commit 1b853c5
Compare with similar skills
Reatom Jsx 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 |
|---|---|---|---|---|---|---|
| Reatom Jsx this skillreatom/reatom | 1.4k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Web Artifacts Builderanthropics/skills | 180k | 40 repos | ~769 | Automated safety check: Pass | Apache-2.0 | |
| Dify Component Writing Guidelanggenius/dify | 158k | — | ~626 | Automated safety check: Pass | Custom licence | |
| React Frontend Development Guidelinesdiet103/claude-code-infrastructure-showcase | 10k | 2 repos | ~2.9k | Automated safety check: Pass | MIT | |
| Formik Form PatternsChrisWiles/claude-code-showcase | 6.1k | 3 repos | ~2.1k | Automated safety check: Pass | None | |
| Animated React Component LibrariesHainrixz/editor-pro-max | 264 | 1 repos | ~5.7k | Automated safety check: Pass | Custom licence |
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- Official
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React Frontend Development Guidelines
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Formik Form Patterns
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Shows how to build forms with Formik and Yup validation, including conditional rules, field helpers, GraphQL submission, edit forms and multi-step flows.
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Categories
Questions about Reatom Jsx
What does Reatom Jsx do?
Implements and documents @reatom/jsx — reactive native DOM JSX. Reatom Jsx is an agent skill from reatom/reatom. Implements and documents @reatom/jsx — reactive native DOM JSX.
When should I use Reatom Jsx?
Reatom Jsx fits situations like: writing JSX components; props (prop:/attr:/on:); typeScript JSX typings with Reatom.
How do I install Reatom Jsx in Claude Code?
Run `npx skills add reatom/reatom --skill reatom-jsx -a claude-code`. Or copy the skill folder (skills/reatom-jsx in reatom/reatom) into .claude/skills/reatom-jsx in your project. Claude Code loads it when a task matches its description.
How do I install Reatom Jsx in Codex?
Run `npx skills add reatom/reatom --skill reatom-jsx -a codex`. Or copy the skill folder (skills/reatom-jsx in reatom/reatom) into .agents/skills/reatom-jsx in your project. Codex loads it when a task matches its description.
Can I use Reatom Jsx 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 reatom/reatom --skill reatom-jsx -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/reatom-jsx, .gemini/skills/reatom-jsx, .github/skills/reatom-jsx and .opencode/skills/reatom-jsx in your project.
What does Reatom Jsx need to run?
SKILL.md names no scripts, command-line tools or credentials: Reatom Jsx is instructions for the agent only.
Does Reatom Jsx 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 Reatom Jsx 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 Reatom Jsx use?
Reatom Jsx is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Reatom Jsx use?
About 1.1k tokens (SKILL.md is roughly 4.4k 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 Reatom Jsx?
Skills that share tags, products or a category with Reatom Jsx: Web Artifacts Builder (anthropics/skills, 180k stars), Dify Component Writing Guide (langgenius/dify, 158k stars), React Frontend Development Guidelines (diet103/claude-code-infrastructure-showcase, 10k stars) and Formik Form Patterns (ChrisWiles/claude-code-showcase, 6.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Reatom Jsx?
reatom (a GitHub organization) maintains it in reatom/reatom, which has 1,376 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on October 8, 2026.
Source: reatom/reatom on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.