Jack Dorsey Launches Buzz, A Chat App For AI Agents

Jack Dorsey launched Buzz on July 21, a group chat app that treats AI agents as chat participants, not sidebar bots, per TechCrunch.

That's a direct challenge to Slack, betting teams want agents built into the chat itself, not a bot bolted on the side.

I've built a Slack bot with the standard channel-handler pattern: wait for a mention, run the logic, post a reply. That's fine for a command you type on purpose. It's the wrong shape for an agent that's supposed to read every message and jump in on its own judgment, not wait to be summoned. Slack's model assumes a human is triggering a script. Buzz assumes the agent is already in the room.

I'm skeptical the app itself beats Slack's install base, but the design question is real. TechCrunch's report doesn't say how Buzz handles permissions, notification overload, or an agent talking over people in a busy thread. Those details decide whether agent-as-participant is a real product or just a good demo.