Block, Inc.

Block is the payments company behind Square and Cash App, co-founded and led by Jack Dorsey, whose title there is Block Head. Its relevance to this wiki is the open-source developer tooling it publishes, which consistently reflects a preference for open protocols over vendor platforms.

Two projects matter here. Goose is Block's open-source coding agent, notable for being one of the harnesses that other tools integrate against as a matter of course — it shows up as a supported target in agentmemory and is one of three harnesses shipped with Buzz. Buzz, launched July 2026, is a self-hostable workspace combining team chat, agent participation and a Git forge on a Nostr relay, explicitly framed as reducing Block's own dependence on Slack and GitHub.

The pattern across both is worth naming: Block builds the tool it needs internally, ships it open-source, and makes itself the first customer reference. Buzz's documentation describes a separate internal build configured for Block's own relay and agent provider. That's a stronger commitment signal than most open-source-from-a-company releases, and also the main limitation on how much the public artifact tells you — no adoption, pricing or external-customer figures have been published for Buzz.

Dorsey's stated position, developed in an essay with Sequoia's Roelof Botha, is that AI should change how organizations coordinate rather than serve as a productivity add-on. Buzz is the infrastructure expression of that: if agents are going to be coordinating participants, they need identity, membership and an audit trail, which is the argument in agent-identity-attribution.

Not to be confused with goose-relay-vpn, an unrelated single-author circumvention tool that shares the name.

Cross-references

• block-buzz-workspace — the Buzz launch and the decentralization question
• agent-identity-attribution — the design idea Buzz is built around