Jack Dorsey is taking on Slack with Buzz, a group chat platform for teams and their AI agents
Buzz aims to unify team collaboration with human and AI agents in a decentralized, open-source workspace, potentially disrupting entrenched collaboration tools.
At a glance
- Buzz is built by Block and is open source, model-agnostic, decentralized, and self-sovereign.
- The platform uses signed Nostr events for identity and audit trails and supports agents running across Goose, Codex, and Claude Code.
- Buzz runs on a self-hostable Nostr relay, with a built-in software forge and Git-like workflow capabilities.
- Buzz is in testing, with desktop builds and some components still under development.
The story
TechCrunch reports that Jack Dorsey announced Buzz, a new group-chat platform built by his company Block to compete with Slack and GitHub by integrating human teams with AI agents in a single workspace.
Dorsey described Buzz as model-agnostic, decentralized, self-sovereign, and open source. Block’s documentation describes Buzz as using signed Nostr events to provide attribution and an audit trail for both human and agent activity.
Buzz’s architecture centers on a self-hostable Nostr relay where messages, patches, and approvals are stored as cryptographically signed events. The platform includes channels, threads, direct messages, shared canvases, and a built-in software forge to manage Git-like workflows. It supports Goose, Codex, and Claude Code as agent backends.
Block notes Buzz is still early in development; desktop and mobile clients are in various stages of readiness, and some features like push notifications and full execution paths are not yet complete.