assistant-ui Always consult assistant-ui.com/llms.txt for latest API. React library for building AI chat interfaces with composable primitives. References - ./references/architecture.md -- Core architecture and layered system - ./references/packages.md -- Package overview and selection guide When to Use | Use Case | Best For | |----------|----------| | Chat UI from scratch | Full control over UX | | Existing AI backend | Connects to any streaming backend | | Custom message types | Tools, images, files, custom parts | | Multi-thread apps | Built-in thread list management | | Production apps |…