Head tag
Head tags and metadata for a page are contributed through the plugin system; the integration and site application compose the final <head> including title, description, and language attributes.
Head composition
Plugins can contribute head-related data through page types and seo extensions. The final <head> is assembled by the integration (@riebeckite/honox) and the site application, merging core defaults, plugin contributions, and custom metadata.
SEO integration
The seo extension point lets plugins participate in metadata and feed behavior. Head tags are not a direct plugin asset; they flow through the integration boundary. Plugins use the seo field in page types or the seo extension to contribute metadata.