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The agentic experience shell provides the persistent structure around a conversation. It defines navigation, presentation, and supporting workspaces without prescribing the content inside the conversation.

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Shell Options

The agent experience takes place in a shell with two shapes: the floating shell, and the fullscreen dialog shell experience.

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Floating shell

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Fullscreen shell

Both shells are available to a user. Implementors can default which experience a user lands on, but cannot prevent the user from switching to the other.

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Feature Options

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When to default to which shell?

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Supporting content

Supporting content can appear in the App Shell’s artifact panel. The content inside that panel can use a Tabbed Layout when users need access to multiple related views.

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Panel

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Tabbed layout

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Dos and Don’ts for Agentic Experience Shell

  • App Header — Identifies the experience and provides shell-level actions
  • App Shell — Arranges the header, history rail, conversation, and supporting panel
  • Chat History — Provides access to previous conversations
  • Chat Layout — Defines the conversation region
  • Tabbed Layout — Organizes multiple related views within the supporting workspace
  • Window — Presents the shell as a floating or fullscreen experience
  • Chat Layout — For the layout of chat messages within the shell.
Last modified on July 24, 2026