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AI Message List

Copilot thread with hundreds of messages that pages backwards when scrolling up without moving what is being read.

Full screen Try a theme

About this block

What it's for

  • Copilot thread with hundreds of messages that pages backwards when scrolling up without moving what is being read.
  • Support chat where replies arrive while the agent reviews the history and a button shows '3 new messages'.
  • Agent console that follows streaming output while the user is at the bottom and stops following when they scroll up.

Includes

  • Virtualized rendering
  • Variable height measurement
  • Day grouping
  • Relative day labels
  • Floating day label
  • Follow output
  • Smart scroll to bottom
  • Unread counter

Works with

  • Radix UI primitives (the registry variant it ships in)
  • React 19, Next.js App Router and Tailwind CSS 4, installed with the shadcn CLI
  • Your theme tokens, in light and dark mode

Install

Included with Agentic UI Kit (one-time license). Install needs your license key: see pricing · connect your project.

Agentic UI CLI
agentic-ui add ai-message-list
Installs through shadcn and adapts the component to your design tokens.
shadcn CLI
npx shadcn@4.17.0 add @agentic-ui/ai-message-list

Used in

A standalone component: drop it into any screen.

Type
Block
Variants
Radix UI
Themes
Light and dark
Widths
Preview it at desktop, tablet and mobile widths above.
Motion
Animated, with a reduced-motion fallback
Sample data
Ships with sample data in data.ts; replace it with your own.