Vercel React Best Practices
sanity-io/sanity
React and Next.js performance optimization guidelines from Vercel Engineering.
A skill your agent uses when authoring or refactoring composite React components in @dxos/react-ui and sibling UI packages — namespaced primitives like Foo.Root / Foo.Trigger / Foo.Content built…
Install Composite Components
$ npx skills add dxos/dxos --skill composite-components -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install dxos/dxos composite-components --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/dxos/dxos.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/composite-components .claude/skills/composite-components && 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 "composite-components" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composite-components into .claude/skills/composite-components/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composite-components", 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/dxos/dxos/tree/main/.agents/skills/composite-componentsType 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 dxos/dxos --skill composite-components -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install dxos/dxos composite-components --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/composite-components .agents/skills/composite-components && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "composite-components" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composite-components into .agents/skills/composite-components/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composite-components", 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 dxos/dxos --skill composite-components -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install dxos/dxos composite-components --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/composite-components .cursor/skills/composite-components && 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 "composite-components" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composite-components into .cursor/skills/composite-components/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composite-components", 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/dxos/dxos.git --path .agents/skills/composite-components--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 dxos/dxos --skill composite-components -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install dxos/dxos composite-components --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/composite-components .gemini/skills/composite-components && 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 "composite-components" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composite-components into .gemini/skills/composite-components/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composite-components", 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 dxos/dxos composite-componentsInstalls 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 dxos/dxos --skill composite-components -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/composite-components .github/skills/composite-components && 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 "composite-components" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composite-components into .github/skills/composite-components/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composite-components", 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 dxos/dxos --skill composite-components -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install dxos/dxos composite-components --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/composite-components .opencode/skills/composite-components && 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 "composite-components" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composite-components into .opencode/skills/composite-components/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composite-components", 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
composite-components- GitHub stars
- 525
- Token cost
- ~1.8k tokens
- SKILL.md length
- 679 words
- Files
- 1
- Skills in repo
- 41
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
A skill your agent uses when authoring or refactoring composite React components in @dxos/react-ui and sibling UI packages — namespaced primitives like Foo.Root / Foo.Trigger / Foo.Content built…
- Works in 10 steps: Prefix internal names: FooRoot,… → displayName is dotted and matches the… → The module is the namespace. Foo.tsx… → …
- Tasks that involve React components
- SKILL.md covers Exemplars, Two construction styles, Rules and Counter-examples to avoid
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Composite Components is an agent skill from dxos/dxos. Use when authoring or refactoring composite React components in @dxos/react-ui and sibling UI packages — namespaced primitives like Foo.Root / Foo.Trigger / Foo.Content built around forwardRef, the ark. factory's asChild, and a tx() theme function.
Its SKILL.md is about 1.8k 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 and Refactoring. It works with React. The repository describes itself as: TypeScript implementation of the DXOS protocols, SDK, toolchain and Composer.
When your agent uses it
- Tasks that involve React components
- Tasks that involve Refactoring
Example prompts
- “/composite-components”
Workflow steps
10 steps, taken from the first numbered list in SKILL.md.
- Prefix internal names: FooRoot, FooTrigger, FooRootProps. The unprefixed Root / Trigger / RootProps names appear only in the module's…
- displayName is dotted and matches the consumer API: 'Foo.Root', 'Foo.Overlay' — not 'FooRoot' or 'FooOverlay'. Set it on every part…
- The module is the namespace. Foo.tsx carries the // @import-as-namespace directive and exports each part under its short name; consumers…
- Export every part's Props type under its short name
- Section comments delimit each part
- Theme tokens: classNames flow through tx('foo.part', variants, classNames). For slottable/composable parts, use composableProps(props) to…
- Props convention: extend SlottableProps (or ComposableProps) from @dxos/ui-types for native parts; extend ThemedClassName for…
- Context: prefer createContext from @dxos/react-hooks over React's plain createContext (it returns a typed [Provider, useContext] tuple…
- No as any displayNames. If a part is a plain function component you can't otherwise tag, wrap it in composable() so displayName is a typed…
- One file per composite family (Foo.tsx). Don't split parts across files.
What it can do on your machine
Read from SKILL.md and the folder at commit 2e6b92a. 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
Composite Components loads about 1.8k tokens when it runs. Until then it costs about 72 tokens; SKILL.md has 679 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 679 words (~1,809 tokens).
“A "composite" is a namespaced React API like Dialog.Root / Dialog.Trigger / Dialog.Content, in the Radix/Ark anatomy style. Scaffolding — createContext, composeRefs/useComposedRefs, useControllableState, composeEventHandlers — comes from @dxos/react-hooks; polymorphic elements come from ark. (@ark-ui/react/factory), which takes asChild itself. Do not…”
- name
- composite-components
Files
Just SKILL.md in .agents/skills/composite-components of dxos/dxos.
Open the folder on GitHubat commit 2e6b92a
Compare with similar skills
Composite Components 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 |
|---|---|---|---|---|---|---|
| Composite Components this skilldxos/dxos | 525 | — | ~1.8k | Automated safety check: Pass | Custom licence | |
| Vercel React Best Practicessanity-io/sanity | 6.4k | 129 repos | ~1.6k | Automated safety check: Pass | MIT | |
| Dify Component Writing Guidelanggenius/dify | 158k | — | ~626 | Automated safety check: Pass | Custom licence | |
| React Best Practicesmastra-ai/mastra | 29k | — | ~1.9k | Automated safety check: Pass | Custom licence | |
| No Use Effectfastrepl/anarlog | 9.5k | — | ~825 | Automated safety check: Pass | MIT | |
| Eisland Dev Refactor Module SplitJNTMTMTM/eIsland | 320 | — | ~2.2k | Automated safety check: Pass | GPL-3.0 |
Similar skills
- Official
Dify Component Writing Guide
langgenius/dify
Use when implementing or refactoring React/TypeScript components and the task requires decisions about component ownership, feature boundaries, state, data…
React Best Practices
mastra-ai/mastra
React performance optimization guidelines from Mastra Engineering.
No Use Effect
fastrepl/anarlog
Avoid direct React useEffect usage when writing or reviewing React components and hooks.
Eisland Dev Refactor Module Split
JNTMTMTM/eIsland
Refactor a monolithic React component file into a standardized module structure with components/, hooks/, utils/, and config/ subdirectories.
Eisland Dev Refactor Module Split
JNTMTMTM/eIsland
Refactor a monolithic React component file into a standardized module structure with components/, hooks/, utils/, types/, and config/ subdirectories.
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Related
Works with
Categories
Questions about Composite Components
What does Composite Components do?
A skill your agent uses when authoring or refactoring composite React components in @dxos/react-ui and sibling UI packages — namespaced primitives like Foo.Root / Foo.Trigger / Foo.Content built…. Composite Components is an agent skill from dxos/dxos.Content built around forwardRef, the ark.
When should I use Composite Components?
Composite Components fits situations like: tasks that involve React components; tasks that involve Refactoring.
How do I install Composite Components in Claude Code?
Run `npx skills add dxos/dxos --skill composite-components -a claude-code`. Or copy the skill folder (.agents/skills/composite-components in dxos/dxos) into .claude/skills/composite-components in your project. Claude Code loads it when a task matches its description.
How do I install Composite Components in Codex?
Run `npx skills add dxos/dxos --skill composite-components -a codex`. Or copy the skill folder (.agents/skills/composite-components in dxos/dxos) into .agents/skills/composite-components in your project. Codex loads it when a task matches its description.
Can I use Composite Components 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 dxos/dxos --skill composite-components -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/composite-components, .gemini/skills/composite-components, .github/skills/composite-components and .opencode/skills/composite-components in your project.
What does Composite Components need to run?
SKILL.md names no scripts, command-line tools or credentials: Composite Components is instructions for the agent only.
Does Composite Components 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 Composite Components 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 Composite Components use?
Composite Components 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 Composite Components use?
About 1.8k tokens (SKILL.md is roughly 7.2k 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 Composite Components?
Skills that share tags, products or a category with Composite Components: Vercel React Best Practices (sanity-io/sanity, 6.4k stars), Dify Component Writing Guide (langgenius/dify, 158k stars), React Best Practices (mastra-ai/mastra, 29k stars) and No Use Effect (fastrepl/anarlog, 9.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Composite Components?
dxos (a GitHub organization) maintains it in dxos/dxos, which has 525 GitHub stars. The repository holds 41 skills in this directory. The repository was last updated on October 9, 2026.
Source: dxos/dxos on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.