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Use when implementing common UI components in TYPO3 v13/v14 LTS sitepackages with Fluid 4/5, TypeScript, and SCSS — sticky header, lazy loading, breadcrumb, language switcher, animations, scroll-to-anchor, skeleton loading, toast notifications, back-to-top. Also triggers for: Fluid 5 strict-typed ViewHelpers, Camino theme, native dialog modal, post-v14 external build tools (#108055; see typo3-vite-skill).
How this skill is triggered — by the user, by Claude, or both
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/typo3-frontend-patterns:typo3-frontend-patternsThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Reusable implementation patterns for TYPO3 v13 and **v14.3 LTS** sitepackage development. Each pattern provides a complete implementation with Fluid template, TypeScript plugin, SCSS partial, and accessibility considerations.
references/patterns-animations.mdreferences/patterns-back-to-top.mdreferences/patterns-breadcrumb.mdreferences/patterns-language-switcher.mdreferences/patterns-lazy-loading.mdreferences/patterns-scroll-to-anchor.mdreferences/patterns-skeleton-loading.mdreferences/patterns-sticky-header.mdreferences/patterns-toast-notification.mdReusable implementation patterns for TYPO3 v13 and v14.3 LTS sitepackage development. Each pattern provides a complete implementation with Fluid template, TypeScript plugin, SCSS partial, and accessibility considerations.
v14 heads-up: the core no longer concatenates or compresses frontend CSS/JS (Breaking #108055). Pair these patterns with an external build tool — see typo3-vite-skill. Fluid 5 (v14) enforces strict ViewHelper typing (#108148): all VHs in pattern templates must have typed arguments +
render(): string. Camino (v14.1+, #108539) is the v14 core's default theme alternative to bootstrap-package — patterns stay theme-agnostic.
These patterns solve common frontend problems that every TYPO3 sitepackage encounters. Instead of building from scratch, use these proven implementations that handle edge cases (scroll performance, reduced-motion, keyboard navigation, ARIA live regions) correctly from the start.
| Pattern | Description | Key Features |
|---|---|---|
| Sticky Header | Scroll-triggered fixed header | IntersectionObserver, CSS transitions |
| Lazy Loading | Deferred component initialization | IntersectionObserver, placeholder content |
| Breadcrumb | Breadcrumb navigation | JSON-LD structured data, Schema.org |
| Language Switcher | Multi-language navigation | b13/menus LanguageMenu, flag icons |
| Animations | Scroll-triggered animations | prefers-reduced-motion support |
| Scroll to Anchor | Smooth scroll with offset | Header height compensation |
| Skeleton Loading | CSS placeholder animations | Content layout stability |
| Toast Notification | Notification messages | Auto-dismiss, ARIA live region |
| Back to Top | Scroll-to-top button | Visibility threshold, smooth scroll |
Each pattern follows the same structure:
DOMContentLoaded initialization*.entry.tsreferences/patterns-sticky-header.md -- Scroll-triggered fixed header with IntersectionObserverreferences/patterns-lazy-loading.md -- Deferred component initialization with placeholder contentreferences/patterns-animations.md -- Scroll animations with prefers-reduced-motion supportreferences/patterns-breadcrumb.md -- Breadcrumb navigation with JSON-LD structured datareferences/patterns-language-switcher.md -- Multi-language navigation with b13/menus LanguageMenureferences/patterns-scroll-to-anchor.md -- Smooth scroll with sticky header offset compensationreferences/patterns-skeleton-loading.md -- CSS placeholder animations for content loadingreferences/patterns-toast-notification.md -- Auto-dismiss notifications with ARIA live regionreferences/patterns-back-to-top.md -- Scroll-to-top button with visibility thresholdCreates, edits, and optimizes skills for Claude Code, including drafting, evaluating with test prompts, iterating on performance, and improving skill descriptions for better triggering accuracy.
npx claudepluginhub netresearch/claude-code-marketplace --plugin typo3-frontend-patterns