Jazz UI Development
garden-co/classic-jazz
A skill your agent uses when building, debugging, or optimizing Jazz applications.
Design and review predictable public APIs for TypeScript, JavaScript, React, and React Native libraries.
Install API Design
$ npx skills add margelo/react-native-skills --skill api-design -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install margelo/react-native-skills api-design --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/margelo/react-native-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/api-design .claude/skills/api-design && 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 "api-design" agent skill from https://github.com/margelo/react-native-skills/tree/main/skills/api-design into .claude/skills/api-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-design", 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/margelo/react-native-skills/tree/main/skills/api-designType 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 margelo/react-native-skills --skill api-design -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install margelo/react-native-skills api-design --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/margelo/react-native-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/api-design .agents/skills/api-design && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "api-design" agent skill from https://github.com/margelo/react-native-skills/tree/main/skills/api-design into .agents/skills/api-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-design", 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 margelo/react-native-skills --skill api-design -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install margelo/react-native-skills api-design --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/margelo/react-native-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/api-design .cursor/skills/api-design && 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 "api-design" agent skill from https://github.com/margelo/react-native-skills/tree/main/skills/api-design into .cursor/skills/api-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-design", 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/margelo/react-native-skills.git --path skills/api-design--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 margelo/react-native-skills --skill api-design -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install margelo/react-native-skills api-design --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/margelo/react-native-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/api-design .gemini/skills/api-design && 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 "api-design" agent skill from https://github.com/margelo/react-native-skills/tree/main/skills/api-design into .gemini/skills/api-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-design", 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 margelo/react-native-skills api-designInstalls 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 margelo/react-native-skills --skill api-design -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/margelo/react-native-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/api-design .github/skills/api-design && 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 "api-design" agent skill from https://github.com/margelo/react-native-skills/tree/main/skills/api-design into .github/skills/api-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-design", 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 margelo/react-native-skills --skill api-design -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install margelo/react-native-skills api-design --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/margelo/react-native-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/api-design .opencode/skills/api-design && 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 "api-design" agent skill from https://github.com/margelo/react-native-skills/tree/main/skills/api-design into .opencode/skills/api-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-design", 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
api-design- GitHub stars
- 175
- Token cost
- ~7.2k tokens
- SKILL.md length
- 3,961 words
- Files
- 1
- Skills in repo
- 9
- Repo updated
- First seen
- Licence
- None found
At a glance
Design and review predictable public APIs for TypeScript, JavaScript, React, and React Native libraries.
- Works in 5 steps: Sketch the user-facing TypeScript API… → Write 2-3 realistic call-site examples,… → Check the surface against the rules below. → …
- Shaping exported functions
- SKILL.md covers Workflow, API Freshness, API Shape Rules and Public API Organization, plus 7 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
API Design is an agent skill from margelo/react-native-skills. Design and review predictable public APIs for TypeScript, JavaScript, React, and React Native libraries. Use when shaping exported functions, classes, hooks, options objects, event and listener APIs, error behavior, naming, cross-platform abstractions, or JS-only packages. Pair with build-nitro-modules when the library is backed by Nitro.
Its SKILL.md is about 7.2k 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 and API design. It works with React, React Native, TypeScript and JavaScript. The repository describes itself as: The best react-native Agent Skills. Forget 10x, this is 100x.
When your agent uses it
- Shaping exported functions
- Options objects
- Event and listener APIs
- Cross-platform abstractions
Example prompts
- “/api-design”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Sketch the user-facing TypeScript API before implementing internals.
- Write 2-3 realistic call-site examples, including error and cleanup paths.
- Check the surface against the rules below.
- Verify the exported TypeScript with the repo's typecheck/lint/docs tooling before treating the API as done.
- Implement only after the public shape is coherent and verified.
What it can do on your machine
Read from SKILL.md and the folder at commit 1e9e17b. 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 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
API Design loads about 7.2k tokens when it runs. Until then it costs about 88 tokens; SKILL.md has 3,961 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 3,961 words (~7,207 tokens).
“Use this skill before implementation or when reviewing a public API surface. Target explicit types, stable semantics, and no irrelevant internals in the public contract.”
- name
- api-design
Files
Just SKILL.md in skills/api-design of margelo/react-native-skills.
Open the folder on GitHubat commit 1e9e17b
Compare with similar skills
API Design 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 |
|---|---|---|---|---|---|---|
| API Design this skillmargelo/react-native-skills | 175 | — | ~7.2k | Automated safety check: Pass | None | |
| Jazz UI Developmentgarden-co/classic-jazz | 2.5k | — | ~1.7k | Automated safety check: Pass | MIT | |
| Upgrade Rn Versionbrandingbrand/flagship | 165 | — | ~3.7k | Automated safety check: Pass | MIT | |
| Diagnosing Stacktrace SymbolicationPostHog/posthog-foss | 721 | — | ~2.2k | Automated safety check: Pass | MIT | |
| React Coding StyleCherryHQ/cherry-studio-app | 4k | — | ~2.5k | Automated safety check: Pass | AGPL-3.0 | |
| React Native Experttech-leads-club/agent-skills | 7k | — | ~3.2k | Automated safety check: Pass | CC-BY-4.0 |
Similar skills
Upgrade Rn Version
brandingbrand/flagship
Adopt a new stable React Native minor into Flagship Code. An agent skill from brandingbrand/flagship.
- Official
Diagnosing Stacktrace Symbolication
PostHog/posthog-foss
Help users debug PostHog Error Tracking stack-trace symbolication for any supported platform — JavaScript/TypeScript web, React Native (Hermes), Android (Proguard / R8), or iOS / macOS (dSYM).
React Coding Style
CherryHQ/cherry-studio-app
Implement and review React, React Native, and TypeScript UI for maximum practical render performance through leaf-local updates, stable identities, honest Hook semantics, and minimal effects.
React Native Expert
tech-leads-club/agent-skills
Guides React Native and Expo work for cross-platform apps: Expo Router navigation, fast lists, Reanimated animation, platform-specific code and project structure.
Olore Tanstack Form Latest
olorehq/olore
Local TanStack Form documentation reference (latest, v1.33.5).
More from margelo/react-native-skills
All 9 skills in this repoBuild Nitro Modules
margelo/react-native-skills
Builds and designs React Native Nitro Modules with Nitrogen, HybridObject TypeScript specs, Nitro View components, generated native implementations, zero-copy and native-state APIs, Swift/Kotlin/C++…
Kotlin
margelo/react-native-skills
Design, implement, and review Kotlin and Android APIs. An agent skill from margelo/react-native-skills.
Swift
margelo/react-native-skills
Design, implement, and review Swift APIs and Apple-platform code.
Nitro Fetch
margelo/react-native-skills
Fast native networking primitives for React Native built on Nitro Modules — react-native-nitro-fetch, react-native-nitro-websockets, and react-native-nitro-text-decoder.
React Native Mmkv
margelo/react-native-skills
Fast synchronous key-value storage for React Native via react-native-mmkv (Nitro-backed).
React Native Vision Camera Realtime
margelo/react-native-skills
Design and review production-grade low-latency VisionCamera v5 pipelines.
Related
Works with
Categories
Questions about API Design
What does API Design do?
Design and review predictable public APIs for TypeScript, JavaScript, React, and React Native libraries. API Design is an agent skill from margelo/react-native-skills. Design and review predictable public APIs for TypeScript, JavaScript, React, and React Native libraries.
When should I use API Design?
API Design fits situations like: shaping exported functions; options objects; event and listener APIs; cross-platform abstractions.
How do I install API Design in Claude Code?
Run `npx skills add margelo/react-native-skills --skill api-design -a claude-code`. Or copy the skill folder (skills/api-design in margelo/react-native-skills) into .claude/skills/api-design in your project. Claude Code loads it when a task matches its description.
How do I install API Design in Codex?
Run `npx skills add margelo/react-native-skills --skill api-design -a codex`. Or copy the skill folder (skills/api-design in margelo/react-native-skills) into .agents/skills/api-design in your project. Codex loads it when a task matches its description.
Can I use API Design 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 margelo/react-native-skills --skill api-design -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/api-design, .gemini/skills/api-design, .github/skills/api-design and .opencode/skills/api-design in your project.
What does API Design need to run?
SKILL.md names no scripts, command-line tools or credentials: API Design is instructions for the agent only.
Does API Design 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 API Design 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 API Design use?
No licence was found for API Design or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does API Design use?
About 7.2k tokens (SKILL.md is roughly 29k 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 API Design?
Skills that share tags, products or a category with API Design: Jazz UI Development (garden-co/classic-jazz, 2.5k stars), Upgrade Rn Version (brandingbrand/flagship, 165 stars), Diagnosing Stacktrace Symbolication (PostHog/posthog-foss, 721 stars) and React Coding Style (CherryHQ/cherry-studio-app, 4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains API Design?
margelo (a GitHub organization) maintains it in margelo/react-native-skills, which has 175 GitHub stars. The repository holds 9 skills in this directory. The repository was last updated on August 21, 2026.
Source: margelo/react-native-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.