AI Transport in action: resumable streaming, multi-device sync, and more

How do you deliver token streams, sync conversation state across devices, and let users interrupt an agent mid-response -- without rebuilding your stack every time you switch frameworks? Mike Christensen demonstrates Ably AI Transport in action, walking through the key primitives every production AI application needs and showcasing a multi-agent holiday planning app built on those primitives.

Topics covered:

• Synchronized conversations across devices and browser tabs
• Resilient token streaming with connection recovery and resume on reconnect
• State hydration: rejoining a session and loading conversation history instantly
• Bidirectional interaction and barge-in: steering an agent while it's responding
• Agent progress visibility: surfacing reasoning steps and tool call status in realtime
• Multi-agent coordination without a central orchestrator
• Presence awareness: agents subscribing to user online status
• Shared application state: syncing structured data agents and users both reference
• Infrastructure decoupling: staying agnostic to LLMs and agent frameworks
• Generative UI: rendering dynamic JSON token streams as structured components

Timestamps:

0:00 Introduction

1:25 Underlying primitives

1:36 Resumable token streaming

2:45 Multi-device, multi-tab continuity

3:24 State hydration

4:15 Live steering and barge-in

5:03 Agent progress and reasoning

6:22 Human takeover

7:00 Multi-agent awareness

7:27 Presence awareness

8:10 Shared app and agent state

8:51 LLM- and framework-agnostic

9:50 Tool calls

10:29 Agent-to-agent interaction

14:38 Demo of multi-agent holiday planning app

20:28 Importance of overall user experience

20:51 Conclusion

Links:
Ably AI Transport: https://ably.com/ai-transport
AI Transport docs: https://ably.com/docs/ai-transport
Ably GitHub: https://github.com/ably

Ably on LinkedIn: https://linkedin.com/company/ably-realtime/
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About Ably:
Ably is an enterprise-grade realtime messaging platform. We help developers build, ship, and scale realtime features — from chat and notifications to AI agent streaming and live data sync. Over 2 billion devices served every month, with 100% uptime for 7+ years.

Learn more: https://ably.com

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