React Native Best Practices
vercel-labs/openreview
A prioritized rule set for React Native and Expo apps covering list performance, animation, navigation, UI patterns, state, rendering, monorepos and configuration.
Scaffold a test for a react-native-css feature following the project's testing conventions.
Install Add Test
$ npx skills add nativewind/react-native-css --skill add-test -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install nativewind/react-native-css add-test --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/nativewind/react-native-css.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/add-test .claude/skills/add-test && 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 "add-test" agent skill from https://github.com/nativewind/react-native-css/tree/main/.claude/skills/add-test into .claude/skills/add-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-test", 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/nativewind/react-native-css/tree/main/.claude/skills/add-testType 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 nativewind/react-native-css --skill add-test -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install nativewind/react-native-css add-test --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nativewind/react-native-css.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/add-test .agents/skills/add-test && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "add-test" agent skill from https://github.com/nativewind/react-native-css/tree/main/.claude/skills/add-test into .agents/skills/add-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-test", 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 nativewind/react-native-css --skill add-test -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install nativewind/react-native-css add-test --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nativewind/react-native-css.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/add-test .cursor/skills/add-test && 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 "add-test" agent skill from https://github.com/nativewind/react-native-css/tree/main/.claude/skills/add-test into .cursor/skills/add-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-test", 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/nativewind/react-native-css.git --path .claude/skills/add-test--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 nativewind/react-native-css --skill add-test -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install nativewind/react-native-css add-test --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nativewind/react-native-css.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/add-test .gemini/skills/add-test && 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 "add-test" agent skill from https://github.com/nativewind/react-native-css/tree/main/.claude/skills/add-test into .gemini/skills/add-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-test", 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 nativewind/react-native-css add-testInstalls 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 nativewind/react-native-css --skill add-test -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/nativewind/react-native-css.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/add-test .github/skills/add-test && 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 "add-test" agent skill from https://github.com/nativewind/react-native-css/tree/main/.claude/skills/add-test into .github/skills/add-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-test", 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 nativewind/react-native-css --skill add-test -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install nativewind/react-native-css add-test --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nativewind/react-native-css.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/add-test .opencode/skills/add-test && 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 "add-test" agent skill from https://github.com/nativewind/react-native-css/tree/main/.claude/skills/add-test into .opencode/skills/add-test/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-test", 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
add-test- GitHub stars
- 165
- Token cost
- ~373 tokens
- SKILL.md length
- 119 words
- Files
- 1
- Skills in repo
- 3
- Repo updated
- First seen
- Licence
- MIT
At a glance
Scaffold a test for a react-native-css feature following the project's testing conventions.
- Works in 5 steps: Identify the feature: What needs… → Determine the domain: Is this a babel… → Find existing tests: Search the… → …
- Tasks that involve Cross-platform mobile apps
- SKILL.md covers Context, Conventions by domain and Steps
- Calls yarn
What it does
Add Test is an agent skill from nativewind/react-native-css. Scaffold a test for a react-native-css feature following the project's testing conventions.
Its SKILL.md is about 370 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 Mobile, covering Cross-platform mobile apps. It works with React Native. The licence is MIT.
When your agent uses it
- Tasks that involve Cross-platform mobile apps
Example prompts
- “/add-test”
Requirements
- Pre-approved tools (allowed-tools): Read, Grep, Glob, Edit, Write
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Identify the feature: What needs testing? Use $ARGUMENTS as the starting point.
- Determine the domain: Is this a babel transform, compiler output, or runtime behavior?
- Find existing tests: Search the appropriate src/tests/ subdirectory for similar tests.
- Write the test: Follow the conventions of the domain.
- Run the test: Execute yarn test. Note: ignore ExperimentalWarning: VM Modules warnings — they're expected.
What it can do on your machine
Read from SKILL.md and the folder at commit a5002c5. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadGrepGlobEditWrite
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
yarn
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use yarn, which can reach the network depending on how they are called.
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
Add Test loads about 373 tokens when it runs. Until then it costs about 25 tokens; SKILL.md has 119 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 nativewind/react-native-css at commit a5002c5, republished under its MIT licence (© nativewind). 119 words, ~373 tokens.
Download SKILL.mdSave it as
.claude/skills/add-test/SKILL.md (or your agent's skills folder).- name
- add-test
- description
- Scaffold a test for a react-native-css feature following the project's testing conventions.
- allowed-tools
- Read, Grep, Glob, Edit, Write
- argument-hint
- feature-or-css-property
Context
react-native-css has three test domains in src/__tests__/:
babel/— Babel plugin tests usingbabel-plugin-testercompiler/— CSS compilation tests verifying JSON outputnative/— Runtime tests for style application
Conventions by domain
Babel tests (src/__tests__/babel/)
Use babel-plugin-tester:
import { pluginTester } from "babel-plugin-tester";
pluginTester({
plugin,
tests: {
"test name": {
code: `import { View } from 'react-native';`,
output: `import { View } from 'react-native-css/components';`,
},
},
});Compiler tests (src/__tests__/compiler/)
Verify CSS → JSON compilation output structure.
Native tests (src/__tests__/native/)
Test runtime style application on native platform.
Steps
Identify the feature: What needs testing? Use
$ARGUMENTSas the starting point.Determine the domain: Is this a babel transform, compiler output, or runtime behavior?
Find existing tests: Search the appropriate
src/__tests__/subdirectory for similar tests.Write the test: Follow the conventions of the domain.
Run the test: Execute
yarn test. Note: ignoreExperimentalWarning: VM Moduleswarnings — they're expected.
© nativewind, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .claude/skills/add-test of nativewind/react-native-css.
Open the folder on GitHubat commit a5002c5
Compare with similar skills
Add Test 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 |
|---|---|---|---|---|---|---|
| Add Test this skillnativewind/react-native-css | 165 | — | ~373 | Automated safety check: Pass | MIT | |
| React Native Best Practicesvercel-labs/openreview | 1.7k | 17 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Creating Reanimated Animationsgluestack/gluestack-ui | 5.3k | — | ~2.4k | Automated safety check: Pass | None | |
| RtlGetStream/stream-chat-react-native | 1.2k | — | ~4.4k | Automated safety check: Pass | Custom licence | |
| Mobile App UI Designceorkm/mobile-app-ui-design | 400 | — | ~2k | Automated safety check: Pass | None | |
| Sleek Design Mobile Appssleekdotdesign/agent-skills | 583 | — | ~2.1k | Automated safety check: Pass | MIT |
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- Official
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GetStream/stream-chat-react-native
Audit and maintain RTL (right-to-left) layout compatibility in stream-chat-react-native.
Mobile App UI Design
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Design high-quality mobile app UI/UX screens, flows, and components.
Sleek Design Mobile Apps
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Design mobile app screens with Sleek, edit Sleek projects, and implement their designs in React Native or HTML.
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More from nativewind/react-native-css
Triage
nativewind/react-native-css
Triage a Nativewind or react-native-css GitHub issue. An agent skill from nativewind/react-native-css.
Architecture
nativewind/react-native-css
Explain the react-native-css architecture, compiler pipeline, and key files.
Related
Works with
Categories
Questions about Add Test
What does Add Test do?
Scaffold a test for a react-native-css feature following the project's testing conventions. Add Test is an agent skill from nativewind/react-native-css. Scaffold a test for a react-native-css feature following the project's testing conventions.
When should I use Add Test?
Add Test fits situations like: tasks that involve Cross-platform mobile apps.
How do I install Add Test in Claude Code?
Run `npx skills add nativewind/react-native-css --skill add-test -a claude-code`. Or copy the skill folder (.claude/skills/add-test in nativewind/react-native-css) into .claude/skills/add-test in your project. Claude Code loads it when a task matches its description.
How do I install Add Test in Codex?
Run `npx skills add nativewind/react-native-css --skill add-test -a codex`. Or copy the skill folder (.claude/skills/add-test in nativewind/react-native-css) into .agents/skills/add-test in your project. Codex loads it when a task matches its description.
Can I use Add Test 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 nativewind/react-native-css --skill add-test -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-test, .gemini/skills/add-test, .github/skills/add-test and .opencode/skills/add-test in your project.
What does Add Test need to run?
Going by SKILL.md and its folder, Add Test needs the command-line tools its instructions call (yarn). Its frontmatter pre-approves these tools: Read, Grep, Glob, Edit, Write.
Does Add Test 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 Add Test 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 Add Test use?
Add Test 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 Add Test use?
About 373 tokens (SKILL.md is roughly 1.5k 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 Add Test?
Skills that share tags, products or a category with Add Test: React Native Best Practices (vercel-labs/openreview, 1.7k stars), Creating Reanimated Animations (gluestack/gluestack-ui, 5.3k stars), Rtl (GetStream/stream-chat-react-native, 1.2k stars) and Mobile App UI Design (ceorkm/mobile-app-ui-design, 400 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Add Test?
nativewind (a GitHub organization) maintains it in nativewind/react-native-css, which has 165 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on September 28, 2026.
Source: nativewind/react-native-css on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.