Agent skill

Xstate

Comprehensive guide for XState v5 ecosystem including state machines, actors, @xstate/store, and TanStack Query integration.

No licenceAuto-check passedBackend & APIs

Install Xstate

skills CLI

$ npx skills add pedronauck/skills --skill xstate -a claude-code

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

GitHub CLI

$ gh skill install pedronauck/skills xstate --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/pedronauck/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/curated/xstate .claude/skills/xstate && 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/

Paste into Claude Code

Install the "xstate" agent skill from https://github.com/pedronauck/skills/tree/main/skills/curated/xstate into .claude/skills/xstate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xstate", 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

$skill-installer install https://github.com/pedronauck/skills/tree/main/skills/curated/xstate

Type 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.

skills CLI

$ npx skills add pedronauck/skills --skill xstate -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install pedronauck/skills xstate --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/pedronauck/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/curated/xstate .agents/skills/xstate && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "xstate" agent skill from https://github.com/pedronauck/skills/tree/main/skills/curated/xstate into .agents/skills/xstate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xstate", 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.

skills CLI

$ npx skills add pedronauck/skills --skill xstate -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install pedronauck/skills xstate --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/pedronauck/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/curated/xstate .cursor/skills/xstate && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "xstate" agent skill from https://github.com/pedronauck/skills/tree/main/skills/curated/xstate into .cursor/skills/xstate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xstate", 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

$ gemini skills install https://github.com/pedronauck/skills.git --path skills/curated/xstate

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add pedronauck/skills --skill xstate -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install pedronauck/skills xstate --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/pedronauck/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/curated/xstate .gemini/skills/xstate && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "xstate" agent skill from https://github.com/pedronauck/skills/tree/main/skills/curated/xstate into .gemini/skills/xstate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xstate", 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.

GitHub CLI

$ gh skill install pedronauck/skills xstate

Installs 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).

skills CLI

$ npx skills add pedronauck/skills --skill xstate -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/pedronauck/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/curated/xstate .github/skills/xstate && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "xstate" agent skill from https://github.com/pedronauck/skills/tree/main/skills/curated/xstate into .github/skills/xstate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xstate", 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.

skills CLI

$ npx skills add pedronauck/skills --skill xstate -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install pedronauck/skills xstate --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/pedronauck/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/curated/xstate .opencode/skills/xstate && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "xstate" agent skill from https://github.com/pedronauck/skills/tree/main/skills/curated/xstate into .opencode/skills/xstate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xstate", 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: xstate
GitHub stars: 634
Token cost: ~2.8k tokens
SKILL.md length: 805 words
Files: 4 (incl. references)
Skills in repo: 65
Repo updated: Sep 14, 2026
First seen: Oct 7, 2026
Licence: None found

At a glance

Comprehensive guide for XState v5 ecosystem including state machines, actors, @xstate/store, and TanStack Query integration.

Works in 8 steps: Use setup() for all machines - provides… → Use enums for event types -… → Define actions outside setup() - use… → …
Implementing state machines
SKILL.md covers Quick Reference, Core Principles, XState State Machines and @xstate/store, plus 5 more sections
Calls pnpm

What it does

Xstate is an agent skill from pedronauck/skills. Comprehensive guide for XState v5 ecosystem including state machines, actors, @xstate/store, and TanStack Query integration. Use when implementing state machines, event-driven stores, client state management, or integrating XState with React and TanStack Query for data fetching orchestration.

Its SKILL.md is about 2.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `references/machine-patterns.md`, `references/query-patterns.md` and `references/store-patterns.md`).

It sits in Backend & APIs, covering Event-driven systems and State management. It works with TanStack and React. The repository describes itself as: My personal favorite skills.

When your agent uses it

Implementing state machines
Event-driven stores
Client state management
Integrating XState with React and TanStack Query for data fetching orchestration

Example prompts

“/xstate”

Requirements

Pre-approved tools (allowed-tools): Read, Grep, Glob

Workflow steps

8 steps, taken from the first numbered list in SKILL.md.

Use setup() for all machines - provides superior type inference
Use enums for event types - UPPER_SNAKE_CASE convention
Define actions outside setup() - use type-bound helpers like setup().assign()
Use enqueueActions() for sequential actions - group related actions together
Use .provide() for React integration - override actions with external methods
Initialize context from input - use function form for dynamic initialization
Always spread ...context in stores - preserve other properties
Clean up subscriptions - return cleanup functions from callback actors

What it can do on your machine

Read from SKILL.md and the folder at commit 0422940. 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:
- Read
- Grep
- Glob
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- pnpm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pnpm, 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

Xstate loads about 2.8k tokens when it runs, and up to ~18k if it reads all its reference files. Until then it costs about 75 tokens; SKILL.md has 805 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~75
When it runs · the whole SKILL.md, loaded when a task matches: ~2.8k
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~18k

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 805 words (~2,823 tokens).

“This skill provides comprehensive guidelines, patterns, and best practices for working with the XState v5 ecosystem in this project, including:”

— opening of SKILL.md by pedronauck

name: xstate
allowed-tools: Read, Grep, Glob

Outline of SKILL.md

XState v5 Developer Guide
Quick Reference
Core Principles
XState State Machines
@xstate/store
XState + TanStack Query Integration
XState State Machines
Creating a Machine with setup() API
React Integration
@xstate/store
Creating a Store
React Integration
Undo/Redo Pattern
XState + TanStack Query Integration
Query Subscriptions with QueryObserver
Mutations with useMutation
Essential Patterns (All Tools)
When to Use Each Tool
Use XState State Machines When:
Use @xstate/store When:
Use XState + TanStack Query When:
Common Pitfalls to Avoid
All XState Tools
@xstate/store Specific
TanStack Query Integration
Validation Checklist
For State Machines
For @xstate/store
For TanStack Query Integration
Always

Read the full SKILL.md on GitHub

Files

SKILL.md and 3 other files (references) in skills/curated/xstate of pedronauck/skills.

SKILL.md
references/machine-patterns.md
references/query-patterns.md
references/store-patterns.md

Open the folder on GitHubat commit 0422940

Compare with similar skills

Xstate 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.

Xstate compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Xstate this skillpedronauck/skills	634	—	~2.8k	Automated safety check: Pass	None	25 days ago
Tanstack Query Best PracticesDeckardGer/tanstack-agent-skills	222	1 repos	~1.2k	Automated safety check: Pass	MIT	1 mo ago
Tanstack Querysecondsky/claude-skills	227	—	~7.9k	Automated safety check: Pass	MIT	11 days ago
Tanstack QueryMindrally/skills	269	—	~3.6k	Automated safety check: Pass	Apache-2.0	today
Tanstack Querybskimball/tanstack-hono	119	1 repos	~5.4k	Automated safety check: Pass	MIT	28 days ago
React Native Mmkvmargelo/react-native-skills	175	—	~2.1k	Automated safety check: Pass	MIT	1 mo ago

Similar skills

Tanstack Query Best Practices
DeckardGer/tanstack-agent-skills
TanStack Query (React Query) best practices for data fetching, caching, mutations, and server state management.
222 GitHub starsUsed in 1 repo~1.2k tokens
Backend & APIsAuto-check passed
Tanstack Query
secondsky/claude-skills
TanStack Query v5 (React Query) server state management. An agent skill from secondsky/claude-skills.
227 GitHub stars~7.9k tokensUpdated 11 days ago
Frontend & DesignAuto-check passed
Tanstack Query
Mindrally/skills
Best practices for TanStack Query v5 (React Query) server state management, including query key factories, the queryOptions helper, mutations, optimistic updates, infinite queries, and Suspense mode.
269 GitHub stars~3.6k tokensUpdated today
Frontend & DesignAuto-check passed
Tanstack Query
bskimball/tanstack-hono
Powerful asynchronous state management, server-state utilities, and data fetching for TS/JS, React, Vue, Solid, Svelte & Angular.
119 GitHub starsUsed in 1 repo~5.4k tokens
Frontend & DesignAuto-check passed
React Native Mmkv
margelo/react-native-skills
Fast synchronous key-value storage for React Native via react-native-mmkv (Nitro-backed).
175 GitHub stars~2.1k tokensUpdated 1 mo ago
MobileAuto-check passed
Workflows Management Jest Testing
elastic/kibana
Official
Use the shared TestProvider in workflowsmanagement Jest tests instead of hand-wiring KibanaContextProvider, QueryClientProvider, WorkflowsContextProvider, MemoryRouter, I18nProvider, and the Redux…
21k GitHub stars~1.3k tokensUpdated today
Testing & QAAuto-check passed

Questions about Xstate

What does Xstate do?

Comprehensive guide for XState v5 ecosystem including state machines, actors, @xstate/store, and TanStack Query integration. Xstate is an agent skill from pedronauck/skills. Comprehensive guide for XState v5 ecosystem including state machines, actors, @xstate/store, and TanStack Query integration.

When should I use Xstate?

Xstate fits situations like: implementing state machines; event-driven stores; client state management; integrating XState with React and TanStack Query for data fetching orchestration.

How do I install Xstate in Claude Code?

Run `npx skills add pedronauck/skills --skill xstate -a claude-code`. Or copy the skill folder (skills/curated/xstate in pedronauck/skills) into .claude/skills/xstate in your project. Claude Code loads it when a task matches its description.

How do I install Xstate in Codex?

Run `npx skills add pedronauck/skills --skill xstate -a codex`. Or copy the skill folder (skills/curated/xstate in pedronauck/skills) into .agents/skills/xstate in your project. Codex loads it when a task matches its description.

Can I use Xstate 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 pedronauck/skills --skill xstate -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/xstate, .gemini/skills/xstate, .github/skills/xstate and .opencode/skills/xstate in your project.

What does Xstate need to run?

Going by SKILL.md and its folder, Xstate needs the command-line tools its instructions call (pnpm). Its frontmatter pre-approves these tools: Read, Grep, Glob.

Does Xstate 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 Xstate 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 Xstate use?

No licence was found for Xstate or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Xstate use?

About 2.8k tokens (SKILL.md is roughly 11k 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 15k tokens, read only when the agent opens those files.

What are the alternatives to Xstate?

Skills that share tags, products or a category with Xstate: Tanstack Query Best Practices (DeckardGer/tanstack-agent-skills, 222 stars), Tanstack Query (secondsky/claude-skills, 227 stars), Tanstack Query (Mindrally/skills, 269 stars) and Tanstack Query (bskimball/tanstack-hono, 119 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Xstate?

pedronauck (a GitHub user) maintains it in pedronauck/skills, which has 634 GitHub stars. The repository holds 65 skills in this directory. The repository was last updated on September 14, 2026.

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

Xstate

Install Xstate

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

Tanstack Query Best Practices

Tanstack Query

Tanstack Query

Tanstack Query

React Native Mmkv

Workflows Management Jest Testing

More from pedronauck/skills

Deep Review

Yc Apply

Professional Communication

Tauri V2

Hormozi Ad Factory

Yt Master

Questions about Xstate

Install Xstate

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

More from pedronauck/skills

Related

Questions about Xstate