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Found 817 Skills
Evaluates interfaces, components, screens, and flows against universal UX/UI principles (heuristics, UX laws, Gestalt, cognitive psychology, accessibility) and delivers concrete, prioritized improvements. Use whenever the user shares UI code, screenshots, components, or mockups and wants feedback — even if they don't use the words "critique" or "review". Also trigger when the user asks "what's wrong with this UI", "how can I improve this", "review my component", "does this look right", "give me feedback on this design", or shares any interface and asks for thoughts. Trigger for partial slices too (a single button, form, or card) — not only full screens.
AppleScript, JXA, Shortcuts, Automator, osascript, System Events, accessibility API
Initialize the design system or create new UI components with accessibility, Tailwind/shadcn integration, and documentation. Use when setting up the initial design system, adding component categories, or creating complex UI components that need design review.
Senior frontend engineering expertise for building high-quality web interfaces. Use this skill when writing, reviewing, or optimizing frontend code - HTML, CSS, JavaScript, TypeScript, components, layouts, forms, or interactive UI. Triggers on web performance optimization (Core Web Vitals, bundle size, lazy loading), accessibility audits (WCAG, ARIA, keyboard navigation, screen readers), code quality reviews, component architecture decisions, testing strategy, and modern CSS patterns. Covers the full frontend spectrum from semantic markup to production performance.
Run Lighthouse CLI audits for websites and web applications from environment setup through result interpretation. Use when the user wants to audit performance, accessibility, SEO, best practices, PWA readiness, Core Web Vitals, Lighthouse CI, batch URL scans, localhost pages, or production pages. Trigger this skill for Lighthouse setup and troubleshooting in Linux or WSL, browser launcher failures such as "Cannot find Chrome" or "ECONNREFUSED 127.0.0.1", Chrome or Chromium detection issues, PageSpeed-style analysis requests, or any request to generate Lighthouse HTML and JSON reports with actionable recommendations.
Non-destructive 4-phase image validation: Discover, Validate, Analyze, Report. Use when auditing web images for accessibility, broken references, oversized files, or format mismatches. Use for "image audit", "check alt text", "find broken images", "optimize images", or "page weight". Do NOT use for image creation, editing pixels, CDN configuration, or automated image conversion without explicit user consent.
UI interaction design patterns for skeleton loading, infinite scroll with accessibility, progressive disclosure, modal/drawer/inline selection, drag-and-drop with keyboard alternatives, tab overflow handling, and toast notification positioning. Use when implementing loading states, content pagination, disclosure patterns, overlay components, reorderable lists, or notification systems.
Storybook 10 testing patterns with Vitest integration, ESM-only distribution, CSF3 typesafe factories, play() interaction tests, Chromatic TurboSnap visual regression, module automocking, accessibility addon testing, and autodocs generation. Use when writing component stories, setting up visual regression testing, configuring Storybook CI pipelines, or migrating from Storybook 9.
End-to-end testing patterns with Playwright — page objects, AI agent testing, visual regression, accessibility testing with axe-core, and CI integration. Use when writing E2E tests, setting up Playwright, implementing visual regression, or testing accessibility.
Create a complete, actionable design system for any project (website, app, product) grounded in physical/sensory anchoring rather than design trends. Delivers CSS tokens, typography scale, component patterns, accessibility checklist, and absolute rules as a single developer-ready markdown document. Use this skill whenever the user asks to create a design system, theme, color palette, visual identity, CSS tokens, theme variables, or propose an art direction. Also triggers on "style guide", "site colors", "choose fonts", "look and feel", "visual branding", "charte graphique", "identite visuelle", "direction artistique", "refonte visuelle", or any new project where design isn't yet defined — propose this skill proactively.
Apple Human Interface Guidelines (HIG) reference for designing iOS, iPadOS, macOS, tvOS, visionOS, watchOS apps. Covers UI components, layout, accessibility, typography, navigation, inputs, and platform technologies. Use when designing Apple platform UIs, reviewing SwiftUI/UIKit patterns, or applying HIG design principles to any app.
Implement Syncfusion Blazor button components including Button, ButtonGroup, CheckBox, Chip, DropdownMenu, FloatingActionButton, ProgressButton, SpeedDial, SplitButton, and ToggleSwitch. Use this skill when working with button-related components in Blazor applications. Covers installation, configuration, styling, accessibility, event handling, and advanced features for all button component types.