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Block Open Sources Berd, a Desktop App Unifying AI Agent Workflows Across Tools and Models

Aug 19, 2026
Designing AI with character: what we learned building Berd
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Summary

Block open sources Berd, a desktop app that unifies fragmented AI agent workflows across tools and models, featuring animated 'Gloopies' characters to make agent configurations more approachable, while its design principles now influence Buzz, Block's new collaborative human-agent workspace.

Key Points

  • Block open sources Berd, a desktop application that unifies AI agent workflows across projects, skills, tools, and models, solving the fragmented experience of working with multiple AI systems like goose, Claude Code, and Codex.
  • Berd introduces distinctive visual identities for AI agents, including animated 'Gloopies' characters, making abstract agent configurations more recognizable, approachable, and customizable for users beyond just technical teams.
  • Berd integrates with Block's open source agent framework goose via the Agent Client Protocol, and its design lessons are now shaping Buzz, Block's new collaborative open source workspace where people and agents work together in shared rooms.

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