Agent skills and protocols · Emerging
Anthropic Agent Skills
Public examples, templates, and the reference structure for reusable SKILL.md-based agent capabilities.
Open-source project · Mixed: Apache-2.0 examples and source-available document skills
Catalog, feeds and structured data · Reference
Schema.org
The shared structured-data vocabulary used to describe products, offers, organizations, reviews, and web entities.
Open standard · Vocabulary and supporting software published for reuse; see terms
Commerce platforms and storefronts · Stable
Shopify Hydrogen
Shopify's open-source stack and libraries for building dynamic headless storefronts with React Router.
Open-source project · MIT
Testing, crawling and performance · Stable
Playwright
Cross-browser automation for Chromium, Firefox, and WebKit, useful for repeatable storefront and purchase-path verification.
Open-source project · Apache-2.0
Discovery, SEO and GEO · Emerging
Google guide to generative AI features in Search
Google's current guidance on AI Overviews, AI Mode, SEO fundamentals, measurement, and claims around AEO and GEO tactics.
Primary reference · Official documentation
Accessibility, security and privacy · Reference
Web Content Accessibility Guidelines 2.2
The W3C recommendation for accessible content, navigation, input, authentication, and target sizing across purchase journeys.
Open standard · W3C Recommendation