TL;DR:
- Block presented a messaging and development platform designed to reduce reliance on centralized tools like Slack and GitHub.
- The system assigns independent cryptographic identities and specific permissions to artificial intelligence agents.
- The architecture is model-agnostic and supports multiple large language models, including Claude Code, OpenAI’s Codex, and the Goose framework.
Last Tuesday, American technology company Block introduced its new open-source workspace, Buzz, where human teams and artificial intelligence agents can operate within a single interface. The tool consolidates internal communications and code management within a decentralized environment.
Jack Dorsey used social media to confirm the system’s rollout, describing it as a self-sovereign solution. The platform unifies chat channels, direct messages, voice tools, file sharing, and code repositories into one location.
This structure maintains an interface similar to modern corporate chats, but integrates AI as an actionable user. Official company data indicates that agents within Buzz are not mere text assistants; they possess their own distinct identities.
These agents hold defined cryptographic permissions to post, review code, run pre-approved automations, and actively contribute to team conversations. Bradley Axen, head of AI capabilities at Block, noted in a statement that the market will require spaces where humans and machines collaborate, framing the decision around whether such infrastructure should be proprietary or open.
The platform’s agnostic design allows developers to deploy tools powered by various language models. Project details indicate direct compatibility with third-party systems as well as internally developed solutions previously released by the company.
The Nostr protocol as a technical foundation
To address the challenge of identity in multi-agent systems, Block built its new tool on top of the Nostr protocol. Every participant in the workspace network—whether a person or an automated process—maintains an exclusively owned cryptographic keypair.
This technical configuration prevents user control from residing on platform servers. The official repository details that the history and reputation of each AI agent can travel freely across any network compatible with Nostr standards.
Operation traceability is also managed individually. Every message, reaction, workflow step, review approval, and Git event is recorded as a signed event, generating an audit trail through a hash chain.
The operational debut of Buzz marks the continuation of the company’s open-development strategy, complementing the launch of Goose, the AI agent framework published by Block in January 2025.
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