Individual skill
web-components-pro
Build framework-agnostic Web Components: custom elements, shadow DOM, templates, and design-system distribution. Use for shareable components across frameworks.
skills/web-components-pro/SKILL.md
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# Web Components Pro
A practical guide to Web Components: the browser-native component model — custom elements, shadow DOM, templates/slots — for building framework-agnostic components and design systems that work everywhere.
## Overview
Web Components are **platform primitives**: `customElements.define` registers a tag, shadow DOM encapsulates styles/markup, `<slot>` enables composition, and observed attributes drive reactivity. No framework needed; works in React, Vue, Angular, or plain HTML. The value proposition: **write once, use in any stack** — ideal for design systems serving multiple frameworks, or embeddable widgets.
The trade-off: the platform gives you components, not a framework — no built-in reactivity, templating, or state management. Libraries (Lit) fill the gaps ergonomically.
## When to use
- Design systems consumed by multiple frameworks.
- Embeddable widgets (chat bubbles, review widgets) for third-party sites.