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eslint-docs

Enseigne les pratiques actuelles d'ESLint 10 issues de la documentation officielle. À utiliser lors de l'écriture, la révision ou la correction d'un eslint.config.js (flat config, defineConfig, files, ignores, globalIgnores, extends, languageOptions, globals, parsers, processors), la configuration des règles et sévérités ESLint, les commentaires de désactivation et la configuration en ligne, l'exécution de la CLI en CI (--fix, --cache, --quiet, --max-warnings, suppressions en masse, formateurs, indicateurs de fonctionnalité, serveur MCP), l'écriture de règles personnalisées (meta, schema, corrections, suggestions, sélecteurs, portée, chemins de code) et leur test avec RuleTester, la création de plugins, de configurations partageables, de parseurs, processeurs ou formateurs personnalisés, l'utilisation de l'API Node.js (ESLint, Linter), ou la migration vers ESLint 9 ou 10 depuis eslintrc.

Qu'est-ce que eslint-docs ?

Ce skill fournit une référence complète et à jour pour ESLint 10.14.0, basée sur la documentation officielle (https://eslint.org/docs/latest/). Il se concentre sur les différences essentielles par rapport aux habitudes antérieures : les pièges de la flat config, les valeurs par défaut surprenantes, les API supprimées et les motifs recommandés par la documentation. Chaque affirmation dans les fichiers de référence est suivie de la page source correspondante. Le skill est conçu pour les développeurs et les agents d'IA qui écrivent, révisent ou corrigent des configurations ESLint, que ce soit en mode flat config ou en migration depuis eslintrc. Il couvre tous les aspects, de la configuration de base et des règles de CLI à l'écriture de règles personnalisées et de plugins, en passant par l'utilisation de l'API Node.js. Il comprend également des règles rapides pour les erreurs les plus fréquentes et une table des matières complète pour naviguer dans les fichiers de référence détaillés.

Compatible avec~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/quentin-autret/claude-skills/tree/main/skills/eslint-docs

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Documentation

ESLint 10

Ce skill couvre ESLint 10.14.0 tel que documenté sur https://eslint.org/docs/latest/. Il contient ce qui diffère des habitudes : pièges de la flat config, valeurs par défaut surprenantes, API supprimées et les motifs recommandés par la documentation. Chaque affirmation dans les fichiers de référence se termine par la page dont elle est issue.

Comment naviguer

  1. Lisez les règles rapides ci-dessous. Elles couvrent les erreurs les plus fréquentes.
  2. Ouvrez le fichier de référence correspondant à la tâche, dans le tableau à la fin.
  3. Lorsque le code utilise .eslintrc, env, context.getScope() ou FlatESLint, lisez d'abord references/migration.md.

Démarrage rapide

npm init @eslint/config@latest

// eslint.config.js
import js from "@eslint/js";
import globals from "globals";
import { defineConfig, globalIgnores } from "eslint/config";

export default defineConfig([
  globalIgnores(["dist/"]),
  {
    files: ["**/*.js", "**/*.mjs", "**/*.cjs"],
    plugins: { js },
    extends: ["js/recommended"],
    languageOptions: { globals: { ...globals.browser } },
    rules: { "no-unused-vars": "warn" },
  },
]);

https://eslint.org/docs/latest/use/getting-started , https://eslint.org/docs/latest/use/configure/configuration-files

Règles rapides

Fichiers de configuration

Règles et commentaires

CLI et CI

Règles personnalisées et intégrations

Anciens motifs

AncienActuel
.eslintrc.*, eslintConfig dans package.jsoneslint.config.js avec defineConfig()
"extends": "eslint:recommended"extends: ["js/recommended"] avec plugins: { js }
env, /* eslint-env */languageOptions.globals, /* global */
.eslintignore, --ignore-pathglobalIgnores(), includeIgnoreFile()
overridesPlus d'objets de configuration avec files
--rulesdir, linter.defineRule()Plugin en ligne plugins: { local: { rules } }
--no-eslintrc--no-config-lookup
context.getScope(), context.getSourceCode()sourceCode.getScope(node), context.sourceCode
Règles de style fonction{ meta, create }
FlatESLint, LegacyESLint, FlatRuleTesterESLint, RuleTester
require-jsdoc, valid-jsdoceslint-plugin-jsdoc

Détails et listes complètes : references/migration.md.

Fichiers de référence

FichierLisez-le pour
references/configuration.mdNoms et recherche de fichiers de configuration, configurations TypeScript, clés d'objet de configuration, correspondance files, extends, options de langage, globales, parseurs, processeurs, langages, débogage
references/ignoring-files.mdignores global et non global, ignorer par défaut, fichiers dot, recettes pour ne pas ignorer, import .gitignore
references/rules-and-inline-config.mdSévérités, fusion d'options, commentaires de configuration en ligne, directives de désactivation, linterOptions, corrections par rapport aux suggestions, corrections circulaires
references/cli.mdGlobs, --fix, codes de sortie, --quiet, formateurs, cache, suppressions en masse, indicateurs de fonctionnalité, concurrence, serveur MCP
references/migration.mdChangements cassants d'ESLint 9 et 10, codemods, migration d'eslintrc à flat config, options de règles modifiées, plugins cassés
references/custom-rules.mdmeta de règle, règles locales, context.report, corrections, suggestions, meta.schema, meta.defaultOptions, dépréciation, méthodes context supprimées
references/ast-scope-code-paths.mdSélecteurs, méthodes SourceCode, portées, objets du gestionnaire de portée, événements de chemin de code, profilage
references/testing-rules.mdValeurs par défaut de RuleTester, cas valides et invalides, assertions de correction et de suggestion, vérifications strictes, hooks de framework
references/plugins-and-shareable-configs.mdObjet plugin et meta, configurations de plugin, publication, configurations partageables, parseurs personnalisés, processeurs, langages, formateurs
references/nodejs-api.mdOptions et méthodes d'ESLint, lintText, outputFixes, loadFormatter, LintResult, Linter, SourceCode
references/core-rules-problems.mdRègles que TypeScript couvre, variables inutilisées et non déclarées, ombres, conditions, erreurs asynchrones, pièges regex
references/core-rules-restrictions.mdRecettes no-restricted-imports, -globals, -properties, -exports, no-restricted-syntax, autres interdictions, limites de taille et de complexité
references/core-rules-style.mdValeurs par défaut des règles de suggestion, valeurs par défaut des règles de mise en page, règles supprimées, options dépréciées

Pages parcourues : SOURCES.md.

Individual skills in this repo

This repo contains 16 individual skills — each has its own dedicated page.

grafana-cloud-docs

Grafana Cloud pitfalls, defaults, limits and current patterns from the Grafana, Mimir, Loki and Tempo docs, each tied to its docs URL. Use when sending OpenTelemetry data to Grafana Cloud, writing PromQL, LogQL or TraceQL, controlling cardinality and cost, designing alert rules, routing notifications, provisioning alerting, building Synthetic Monitoring checks, using the /apis dashboard API, choosing access policy tokens or service accounts, or migrating off API keys, the Loki Exporter and legacy /api routes.

javascript-docs

Teaches current JavaScript (ECMAScript) practice drawn from the MDN JavaScript documentation. Use when writing, reviewing or fixing modern JavaScript, choosing a built-in API, or replacing a deprecated pattern. Covers equality and coercion, let/const and the temporal dead zone, strict mode, ASI, functions, classes and private fields, objects, prototypes, Proxy, Reflect, Symbol, eval, operators (??, ?., spread, BigInt arithmetic), statements, Promise, async/await, Promise.try, iterators and iterator helpers, generators, using/await using, DisposableStack, WeakRef, Array (toSorted, at, groupBy, fromAsync), Map, Set methods, WeakMap, strings and Unicode, encodeURIComponent, RegExp (v flag, RegExp.escape, lastIndex), Number, Math, BigInt, JSON (rawJSON, revivers), typed arrays, ArrayBuffer, base64, SharedArrayBuffer, Atomics, Temporal, Date, Intl (DateTimeFormat, NumberFormat, Collator, Segmenter, PluralRules), errors (cause, Error.isError), ES modules, import attributes, import.meta, dynamic import.

next-intl-docs

Teaches current next-intl 4 practices for internationalizing Next.js apps, drawn from the official documentation. Use when setting up next-intl with the App Router, writing i18n/request.ts, adding a [locale] segment with defineRouting, createMiddleware in proxy.ts (formerly middleware.ts), building locale switchers with createNavigation, translating with useTranslations or getTranslations, passing messages to NextIntlClientProvider, writing ICU messages (plurals, select, rich text), formatting dates, numbers and lists with useFormatter, translating metadata, Server Actions, Route Handlers, localized 404 and error pages, static rendering with next/root-params, type-safe messages through AppConfig, testing with Jest, Vitest, Storybook, or extracting inline messages with useExtracted. Triggers on next-intl, useTranslations, getTranslations, NextIntlClientProvider, getRequestConfig, i18n routing, locale prefix, localePrefix, NEXT_LOCALE, hreflang, setRequestLocale, ICU messages, App Router internationalization.

nodejs-docs

Teaches Node.js practice drawn from the official Node.js API documentation, with pitfalls, surprising defaults, deprecations and replacements, each backed by its nodejs.org URL. Use when writing, reviewing, debugging or upgrading Node.js code, or choosing a built-in module (fs, crypto, streams, http, process, CLI flags, node:test, ESM/CommonJS, package.json exports, TypeScript type stripping, child_process, worker_threads, node:sqlite, deprecations).

playwright-docs

Pitfalls, surprising defaults and recommended patterns of Playwright Test for JavaScript and TypeScript, distilled from the official docs. Use when writing, reviewing, debugging or configuring Playwright tests (@playwright/test, playwright.config.ts, npx playwright test), including flaky tests, locators (getByRole, filter, strict mode), web-first assertions (expect, toHaveText, toBeVisible, expect.poll, toPass), fixtures, storageState authentication, project dependencies, timeouts, retries, network mocking (page.route, routeFromHAR, routeWebSocket), API testing, clock, aria snapshots, toHaveScreenshot, axe accessibility scans, traces, UI mode, reporters, CI, Docker, sharding, test locks, component testing with stories and mount, codegen, Playwright MCP, playwright-cli and migration from Puppeteer, Protractor, Testing Library or older Playwright versions.

postgresql-docs

Pitfalls, surprising defaults, PostgreSQL 18 changes and recommended patterns from the official PostgreSQL 18 documentation, each backed by its postgresql.org URL. Use when writing or reviewing PostgreSQL SQL, schema design, migrations and ALTER TABLE locks, indexes, transactions, isolation levels and retries, locking, upsert and MERGE, COPY, JSONB, timestamptz, generated and identity columns, partitioning, EXPLAIN, vacuum, roles, row-level security, PL/pgSQL, full-text search, connection settings, and upgrades to PostgreSQL 18.

react-docs

Writes, reviews and upgrades React 19.3 code from the official react.dev documentation. Use when writing components and Hooks, removing unnecessary useEffect calls, fixing Effect dependencies with useEffectEvent, building forms with Actions (useActionState, useOptimistic, useFormStatus, form action), using Server Components, 'use client', 'use server' and Server Functions, Suspense, use(), useTransition, useDeferredValue, ViewTransition, Activity, adopting React Compiler and eslint-plugin-react-hooks, deciding on useMemo, useCallback and memo, server rendering and hydration (createRoot, hydrateRoot, renderToPipeableStream, prerender), or migrating from React 18 (forwardRef, Context.Provider, ReactDOM.render, propTypes, defaultProps). Triggers on React, JSX, hooks, useState, useEffect, useRef, useContext, Server Components, RSC, Actions, React Compiler, Strict Mode, hydration mismatch, React 19 upgrade.

rust-std-docs

Gives current guidance from the official Rust standard library docs (std 1.99.1 stable) on pitfalls, panics, platform differences, discouraged APIs and newer stable replacements. Use when writing, reviewing or refactoring Rust code that uses std, especially collections (Vec, HashMap, BTreeMap, BinaryHeap, entry, extract_if, sort), Option/Result/error handling (expect, ?, Error, ExitCode, panic), iterators (collect, flatten, Peekable, try_fold), Box/Rc/RefCell/Cow/Pin/mem::take, Arc/Mutex/RwLock/OnceLock/LazyLock/thread::scope/mpsc/Condvar/atomics, String/str/fmt/format!/OsString/CString, io/fs/path (BufWriter, OpenOptions, PathBuf::join), process/env/net/time (Command, set_var, TcpStream, Instant, Duration), From/TryFrom/AsRef/Ord/Drop/Deref/Clone, and unsafe raw pointers, MaybeUninit, transmute, NonNull or integer overflow and float ordering.

socketio-docs

Builds, configures and debugs Socket.IO 4.8 servers and clients from the official Socket.IO v4 documentation. Use when writing a Node.js Socket.IO server (Express, Fastify, Koa, Bun, uWebSockets.js) or a socket.io-client app, emitting events with acknowledgements, timeout() and emitWithAck, broadcasting to rooms and namespaces, authenticating in middleware with the auth option, configuring CORS, reverse proxies and sticky sessions, scaling with the Redis, Redis Streams, Postgres, MongoDB or Cluster adapter, enabling connection state recovery and delivery guarantees, tuning reconnection, writing tests, troubleshooting connection issues, or migrating from Socket.IO v2 or v3. Triggers on Socket.IO, socket.io, socket.io-client, io(), new Server, emit, emitWithAck, acknowledgements, rooms, namespaces, broadcast, io.use, middleware, CORS, Redis adapter, sticky sessions, connection state recovery, reconnection, connect_error, Session ID unknown. Not for plain WebSocket servers such as ws without Socket.IO.

tailwindcss-docs

Teaches current Tailwind CSS v4 practices drawn from the official documentation. Use for any task that touches Tailwind CSS v4, even a small one, because many v3 habits silently break in v4. Use when writing or reviewing Tailwind CSS v4 code (utility classes, variants, arbitrary values, theme variables in @theme, @utility, @custom-variant, @apply, @reference, @source), setting up Tailwind in a framework or build tool (Vite plugin, PostCSS plugin, CLI, Next.js, SvelteKit, Nuxt, Angular, Laravel, Rails), customizing the theme (colors, fonts, breakpoints, spacing, animations), building dark mode with a class or data attribute, or migrating a project from Tailwind v3 (tailwind.config.js, @tailwind directives, darkMode class, safelist, bg-opacity, renamed shadow and outline utilities). Triggers on tailwindcss, @import "tailwindcss", @tailwindcss/vite, @tailwindcss/postcss, @tailwindcss/cli, @theme, @custom-variant dark, npx @tailwindcss/upgrade, upgrade to Tailwind v4.

tauri-docs

Tauri 2 apps, tauri.conf.json, capabilities and permissions, commands and invoke, events and channels, plugins, bundling, signing and the updater, migration from Tauri 1. Guides Tauri 2 work from the official v2 documentation, including scopes, managed state, plugin authoring, CSP and the isolation pattern, testing and debugging, Linux, Windows and macOS packages, and mobile and store releases. Use when writing or reviewing a Tauri 2 app, adding a plugin or a capability, fixing a "not allowed" or "forbidden path" error, wiring IPC between Rust and the webview, packaging, signing or publishing a desktop or mobile build, or upgrading a Tauri 1 or 2.0 beta project.

tokio-docs

Gives current guidance from the official tokio documentation (tokio 1.54.1) on async Rust pitfalls, cancel safety, blocking code, surprising defaults and deprecated APIs. Use when writing, reviewing or debugging async Rust code that uses tokio, especially the runtime (#[tokio::main], #[tokio::test], Builder, enable_all, block_on, current_thread, LocalRuntime, shutdown, feature flags), tasks (spawn, JoinHandle, JoinSet, abort, spawn_blocking, block_in_place, LocalSet, spawn_local, task_local), select!, join!, try_join!, cancellation and graceful shutdown, sync primitives (Mutex across .await, RwLock, Semaphore, Notify, OnceCell), channels (mpsc backpressure, oneshot, broadcast lag, watch), time (sleep, interval, MissedTickBehavior, timeout, paused time, start_paused), I/O and networking (AsyncReadExt, BufWriter flush, split, io::copy, framing, TcpListener, TcpStream, UdpSocket), tokio::fs, process (Command, kill_on_drop, Child), signals (ctrl_c, Windows console events) and Windows named pipes.

typescript-docs

Configures, writes and upgrades TypeScript 6.0 code and tsconfig.json from the official TypeScript documentation. Use when upgrading from TypeScript 5.x to 6.0 (strict, types, rootDir, baseUrl, moduleResolution node, target es5, outFile, esModuleInterop), choosing module and moduleResolution, writing package.json exports and imports, fixing ESM and CommonJS interop, enabling verbatimModuleSyntax or erasableSyntaxOnly, setting up project references and tsc --build, writing .d.ts files, checking JavaScript with JSDoc, or debugging narrowing, generics, mapped types, decorators and enums. Triggers on TypeScript, tsc, tsconfig, TS5112, ignoreDeprecations, nodenext, bundler, .d.ts, @ts-check, TypeScript 6 upgrade.

typesense-docs

Pitfalls, surprising defaults and recommended patterns of the Typesense search engine, distilled from the official docs. Use when designing a Typesense collection schema, writing search parameters (q, query_by, filter_by, sort_by, facet_by, group_by), tuning typo tolerance and ranking, building vector, semantic or hybrid search, conversational RAG or natural language search, creating API keys and scoped search keys for multi-tenancy, indexing and import (JSONL, upsert, emplace, dirty_values), syncing from a primary database, reindexing through aliases, managing synonyms (synonym sets), curation sets and stopwords, joins, analytics rules and query suggestions, InstantSearch, migrating from Algolia, or running, clustering, backing up and upgrading a Typesense server.

vite-docs

Teaches current Vite 8 practices drawn from the official documentation. Use when writing or fixing a vite.config, migrating from Vite 7 (Rolldown and Oxc replacing Rollup and esbuild), configuring the dev server, proxy or HMR, handling import.meta.env and modes, tuning the production build, library mode, SSR, writing a Vite plugin, using the HMR or JavaScript API, or the Environment API. Triggers on vite.config, defineConfig, rolldownOptions, import.meta.env, loadEnv, optimizeDeps, ssrLoadModule, ModuleRunner, this.environment, upgrade to Vite 8.

vitest-docs

Teaches current Vitest 5 practices drawn from the official documentation. Use when writing, reviewing or fixing Vitest tests (test, describe, expect, test.for, fixtures with test.extend, hooks, snapshots), mocking with vi (vi.fn, vi.spyOn, vi.mock, vi.when, fake timers, stubGlobal, stubEnv), configuring vitest.config or projects, choosing an environment or pool, filtering and running tests in CI, measuring coverage with v8 or istanbul, debugging slow or flaky suites, testing components in browser mode with Playwright, or migrating from Jest, Mocha or Vitest 4. Triggers on vitest, vi.mock, vi.fn, vitest.config, toMatchSnapshot, expect.poll, coverage thresholds, browser mode, @vitest/browser-playwright, jsdom, happy-dom, migrate Jest to Vitest, upgrade Vitest 5.

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