accessibility-wcag
Skill2 starsChanged 5 months agoMITView on GitHub
Accesibilidad WCAG 2.2 nivel AA aplicada: semántica HTML, ARIA cuando hace falta, navegación por teclado, foco visible, contraste, textos alternativos, formularios accesibles. Cargá al crear o auditar UI.
2 other projects use a version of this.
Adopted by
Most recently taken up by
- mahdy-gribkov/arcanatheir own version, first seen Nov 8, 2026
- medy-gribkov/arcanatheir own version, first seen Nov 1, 2026
Other versions2 projects use a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 2
- mahdy-gribkov/arcana★ 1same name
- medy-gribkov/arcana★ 1same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository25 other files it gives its agents.
- agent-orchestrationSkill
- backend-api-designSkill
- backend-data-modelingSkill
- backend-observabilitySkill
- backend-performanceSkill
- blossom-carouselSkill
- browser-qaSkill
- commit-hygieneSkill
- discovery-intakeSkill
- frontend-component-patternsSkill
- geo-seoSkill
- gh-cliSkill
- glosario-vivoSkill
- llm-councilSkill
- pedido-claroSkill
- ponytailSkill
- reporte-comprensibleSkill
- sdd-flowSkill
- secure-by-defaultSkill
- security-authn-authzSkill
- security-owaspSkill
- security-secretsSkill
- security-supply-chainSkill
- turtle-protocolSkill
- ui-ux-pro-maxSkill
The file
We split this skill into the rules it gives an agent
3 rules. About 0 are common, 2 are distinctive, and 1 is very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈2
Distinctive · estimate
This author's own choices. Worth a look.
1
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 64
No autoplay con sonido. Pausa accesible en cualquier animación >5 s.
- Distinctive: line 75
No usar ARIA si hay HTML nativo equivalente.
- Very specific: line 76
No cambiar la semántica nativa (role="button" en <a> casi nunca).
≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Accesibilidad — WCAG 2.2 AA
Cuándo usar
- Cualquier UI con la que interactúe una persona.
- Antes de mergear un PR que toca componentes interactivos.
- Auditoría de una pantalla existente.
Principios POUR
- Perceivable — todo contenido tiene alternativa textual o auditiva.
- Operable — todo se puede usar con teclado, sin tiempo límite duro.
- Understandable — lenguaje claro, errores con instrucción.
- Robust — válido sintácticamente, compatible con asistivas.
Semántica primero
Antes de ARIA, HTML nativo:
| Necesitás | Usá | No uses |
| Botón clickeable | <button> | <div onClick> |
| Link | <a href> | <button> que navega |
| Lista | <ul>/<ol> | <div> con bullets |
| Encabezado | <h1>..<h6> jerárquico | <div class="title"> |
| Formulario | <form> + <label for> | inputs sueltos |
| Tabla de datos | <table> con <th> y scope | grid de <div> |
| Diálogo modal | <dialog> | <div> flotante |
ARIA solo cuando el HTML nativo no alcanza. No ARIA es mejor que ARIA mal.
Teclado
Tabrecorre todo lo interactivo en orden lógico (DOM = visual).Esccierra modales, dropdowns, popovers.Enter/Spaceactivan botones; flechas para menús, tabs, sliders.- Foco visible siempre. Outline ≥2 px, contraste ≥3:1 con el fondo.
- Sin trampas de foco salvo dentro de un modal abierto (y restaurar al cerrar).
Contraste
- Texto normal: 4.5:1 mínimo.
- Texto grande (≥18 pt o ≥14 pt bold): 3:1.
- Componentes UI y bordes de foco: 3:1 contra fondo adyacente.
- Verificá con axe DevTools o WebAIM Contrast Checker.
Imágenes y media
altdescriptivo si la imagen aporta info;alt=""si es decorativa.- Video: subtítulos sincronizados. Audio: transcripción.
- No autoplay con sonido. Pausa accesible en cualquier animación >5 s.
Formularios
<label for>en cada input. No "placeholder como label".- Errores en texto + ícono + color (no solo color).
aria-invalid+aria-describedbyal mensaje. - Agrupá relacionados con
<fieldset>+<legend>. - Autocompletar:
autocomplete="email",autocomplete="given-name", etc.
ARIA — reglas básicas
- No usar ARIA si hay HTML nativo equivalente.
- No cambiar la semántica nativa (
role="button"en<a>casi nunca). - Todo control interactivo debe tener nombre accesible.
aria-hidden="true"nunca en algo que recibe foco.- Usar landmarks:
<header>,<nav>,<main>,<aside>,<footer>.
Validación
axe-core(DevTools o CLI) sin violaciones críticas/serias.- Recorrer la página solo con teclado: ¿llegás a todo? ¿salís de todo?
- Probar con lector de pantalla (NVDA en Windows, VoiceOver en macOS, TalkBack en Android).
- Lighthouse Accessibility ≥95.
Reglas duras
- Nunca
outline: nonesin reemplazo visible. - Nunca
tabindex>0: rompe el orden natural. - Nunca
<div onClick>para algo que se ve como botón o link. - Nunca color como único indicador (rojo = error, verde = ok no alcanza).
Relacionadas
[[ui-ux-pro-max]] · [[frontend-component-patterns]]
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