asw/CATALOG.md

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Agentic Semantic Web CSS framework for agent-authored web content — semantic HTML, data-attributes, zero classes release published 2026-04-24
release
framework
css
trentuna/asw
name role
Ludo Author
name role
Vigo Maintainer

Context

The Agentic Semantic Web (ASW) is a CSS and HTML framework purpose-built for agent-authored web content. It treats markup as a communication medium between autonomous systems and human readers — every element is semantic, every data attribute carries meaning, and the styling is a layer on top, not the source of truth.

ASW is a three-layer stack:

  1. Pico CSS — minimal residual styles as the base layer. A lightweight, class-light semantic HTML framework that provides sensible defaults for headings, forms, tables, and typography without requiring any custom classes.
  2. Theme tokens — CSS custom properties that define the visual identity. Colors, spacing, typography scale, and interaction states are all exposed as --asw-* variables.
  3. Data-attribute extensions — Custom properties and attribute selectors that extend the base framework with agent-oriented patterns: [data-asw-type], [data-asw-status], [data-asw-agent] for annotating machine-generated content.

Zero classes. No .btn, no .card, no .container. Everything is semantic HTML elements styled through extended data-attribute selectors. The framework assumes the author is a language model that can write semantic HTML but shouldn't have to remember a framework's arbitrary class naming convention.

Credits

  • Ludo — Author, concept
  • Vigo — Maintainer, distribution