Jack Dorsey's Buzz takes on Slack with AI agents baked in

Jack Dorsey launched Buzz this week, pitching it as a combination of team chat, AI agents, and Git hosting in one product. A Slack employee commenting on HN raised the most interesting objection: agents that see everything you and your colleagues see create real privacy partitioning problems. If an agent has access to all channels, you lose the ability to have sensitive conversations in the same tool.

The broader reaction was skeptical but not dismissive. Several commenters noted that a decade ago this product would have been taken more seriously, but the assumption now is that much of it was built with agents, which implies potential reliability problems and easy abandonment. The chat-plus-code-hosting combo is a real product bet: it assumes the context switch between communication and code is a meaningful pain point.

What's worth tracking is whether the agent-native design actually solves workflow problems or just adds a chatbot layer to an existing category. The HN thread was mostly interested in the privacy architecture question, which is the right question.