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Agent skill

React State Management

by HoangNguyen0403 in HoangNguyen0403/agent-skills-standard

Select and implement local, global, and server state patterns in React.

MITAuto-check passedFrontend & Design

Install React State Management

skills CLI
$ npx skills add HoangNguyen0403/agent-skills-standard --skill react-state-management -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install HoangNguyen0403/agent-skills-standard react-state-management --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/react/react-state-management .claude/skills/react-state-management && rm -rf skills-src

Use ~/.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/

Facts

Skill name
react-state-management
GitHub stars
572
Token cost
~821 tokens
SKILL.md length
304 words
Files
3 (incl. references)
Skills in repo
211
Repo updated
First seen
Licence
MIT

At a glance

Select and implement local, global, and server state patterns in React.

  • Implementing state management (Context
  • SKILL.md covers Priority: P0 (CRITICAL), Implementation Guidelines, Verify and Reference & Examples, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • React Query) in React

What it does

React State Management is an agent skill from HoangNguyen0403/agent-skills-standard. Select and implement local, global, and server state patterns in React. Use when choosing or implementing state management (Context, Zustand, Redux, React Query) in React.

Its SKILL.md is about 820 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `evals/evals.json` and `references/REFERENCE.md`).

It sits in Frontend & Design, covering State management. It works with React, Redux, TanStack and Zustand. The repository describes itself as: A collection of Agent Skills Standard and Best Practice for Programming Languages, Frameworks that help our AI Agent follow best practies on frameworks and programming laguages. The licence is MIT.

When your agent uses it

  • Implementing state management (Context
  • React Query) in React

Example prompts

  • “/react-state-management”

What it can do on your machine

Read from SKILL.md and the folder at commit b529c2d. 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

React State Management loads about 821 tokens when it runs, and up to ~1.6k if it reads all its reference files. Until then it costs about 49 tokens; SKILL.md has 304 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~49
When it runs · the whole SKILL.md, loaded when a task matches
~821
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.6k

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 HoangNguyen0403/agent-skills-standard at commit b529c2d, republished under its MIT licence (© HoangNguyen0403). 304 words, ~821 tokens.

Download SKILL.mdSave it as .claude/skills/react-state-management/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
react-state-management
description
Select and implement local, global, and server state patterns in React. Use when choosing or implementing state management (Context, Zustand, Redux, React Query) in React.

React State Management

Priority: P0 (CRITICAL)

Implementation Guidelines

  • Selection: Zustand for small-medium apps (minimal boilerplate, no Providers). Redux Toolkit (RTK) for large apps needing time-travel debugging or complex middleware.
  • Server Data: Use React Query or SWR for server state. Never sync server data into useState manually. Let cache source of truth.
  • Form/Mutation State (React 19): Use useActionState for a form's pending/result/error triad instead of three separate useState calls; use useOptimistic to show an optimistic value while a mutation is in flight, reverting on error automatically.
  • Context API: Use for low-frequency data like theme, auth, locale, or DI. Not for high-frequency updates (causes global re-renders). Split Context between State and Dispatch to optimize.
  • Global Updates: Use Zustand, Jotai, or Redux for frequent/complex updates across app.
  • Local: useState for simple UI toggles. useReducer for complex state machines.
  • Derived: Compute at render time (const fullName = ...). No useEffect to sync state.
  • URL: Store filter/sort params in URL Search Params (Single Source of Truth).
  • Immutability: Never mutate. Use spread or Immer. Use useMemo on context value to prevent unnecessary re-renders (primitive performance tuning belongs in hooks skill).

Boundary note: hooks skill covers primitive API usage (useMemo, useCallback rules). This skill covers architectural state decisions — which tool to use for which state scope.

tsx
function LikeButton({
  postId,
  initialLiked,
}: {
  postId: string;
  initialLiked: boolean;
}) {
  const [optimisticLiked, setOptimisticLiked] = useOptimistic(initialLiked);
  return (
    <button
      onClick={async () => {
        setOptimisticLiked(!optimisticLiked);
        await toggleLike(postId);
      }}
    >
      {optimisticLiked ? "Liked" : "Like"}
    </button>
  );
}

Verify

  • Form pending/error/result state uses useActionState, not three useState calls.
  • In-flight mutation UI uses useOptimistic rather than a manual "isSaving" flag.
  • Server data lives in React Query/SWR cache, never duplicated into useState.

Reference & Examples

For Zustand, Redux Toolkit, and TanStack Query patterns: See references/REFERENCE.md.

Anti-Patterns

  • No Context for High-Freq: Use Zustand/Redux for state that changes frequently.
  • No State Sync: Compute derived values during render; avoid useEffect to sync state.
  • No Server Cache as UI State: React Query/SWR for server data; don't duplicate into useState.
  • No Manual Optimistic Flags: Use useOptimistic instead of a hand-rolled temporary state + rollback.

© HoangNguyen0403, 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 2 other files (references) in skills/react/react-state-management of HoangNguyen0403/agent-skills-standard.

  • SKILL.md
  • evals/evals.json
  • references/REFERENCE.md

Open the folder on GitHubat commit b529c2d

Compare with similar skills

React State Management 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.

React State Management compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
React State Management this skillHoangNguyen0403/agent-skills-standard572—~821Automated safety check: PassMIT
React ExpertJeffallan/claude-skills12k—~1.4kAutomated safety check: PassMIT
State Managementcohen-liel/hivemind110—~1.9kAutomated safety check: PassApache-2.0
Frontendkid-sid/claude-spellbook190—~3.4kAutomated safety check: PassMIT
React State Managementinvolvex/youtube-music-cli45613 repos~3kAutomated safety check: PassMIT
Opik Frontend Patternscomet-ml/opik22k—~1.1kAutomated safety check: PassApache-2.0

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Works with

Categories

Questions about React State Management

What does React State Management do?

Select and implement local, global, and server state patterns in React. React State Management is an agent skill from HoangNguyen0403/agent-skills-standard. Select and implement local, global, and server state patterns in React.

When should I use React State Management?

React State Management fits situations like: implementing state management (Context; React Query) in React.

How do I install React State Management in Claude Code?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill react-state-management -a claude-code`. Or copy the skill folder (skills/react/react-state-management in HoangNguyen0403/agent-skills-standard) into .claude/skills/react-state-management in your project. Claude Code loads it when a task matches its description.

How do I install React State Management in Codex?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill react-state-management -a codex`. Or copy the skill folder (skills/react/react-state-management in HoangNguyen0403/agent-skills-standard) into .agents/skills/react-state-management in your project. Codex loads it when a task matches its description.

Can I use React State Management 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 HoangNguyen0403/agent-skills-standard --skill react-state-management -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/react-state-management, .gemini/skills/react-state-management, .github/skills/react-state-management and .opencode/skills/react-state-management in your project.

What does React State Management need to run?

SKILL.md names no scripts, command-line tools or credentials: React State Management is instructions for the agent only.

Does React State Management 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 React State Management 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 React State Management use?

React State Management 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 React State Management use?

About 821 tokens (SKILL.md is roughly 3.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 796 tokens, read only when the agent opens those files.

What are the alternatives to React State Management?

Skills that share tags, products or a category with React State Management: React Expert (Jeffallan/claude-skills, 12k stars), State Management (cohen-liel/hivemind, 110 stars), Frontend (kid-sid/claude-spellbook, 190 stars) and React State Management (involvex/youtube-music-cli, 456 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains React State Management?

HoangNguyen0403 (a GitHub user) maintains it in HoangNguyen0403/agent-skills-standard, which has 572 GitHub stars. The repository holds 211 skills in this directory. The repository was last updated on October 9, 2026.

Source: HoangNguyen0403/agent-skills-standard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.