UI components for Rails views in the spirit of form_for. Builders for index tables (sortable, deferred, kept live by Turbo Streams), detail lists, forms, cards, page headers and loading skeletons; a Turbo Frame modal, a confirm dialog and flash toasts; menus, tabs, tooltips, local times, copy buttons, autogrowing textareas and UUID inputs as self-registering custom elements; and AI chat components — transcripts, streamed replies, tool-call timelines, plans, permission requests and a composer — kept live by Turbo Streams. Plain helpers styled with Tailwind CSS v4 (required; the host's build compiles the gem's component CSS), with no Stimulus.