Self-Extending Agentic IDE

bb is an open-source Agentic IDE that allows users to request desired features from AI agents to extend the IDE itself. Instead of providing only fixed features like traditional software, it aims to evolve into different tools depending on the installation environment.

bb provides a timeline-based interface and orchestration capabilities that connect multiple coding agents. It allows integration with major coding agents such as Codex, Claude Code, and Cursor, as well as agents supporting ACP, using the user's subscriptions.

Using the extension system, the following features can be added:

• A task management system for managing issues and agents
• A tile-based interface for exploring threads in a 2D space
• GitHub webhook-based automated code review and end-to-end testing
• An Obsidian-style Markdown editor for collaborative editing with agents
• An agent-based digital audio workstation utilizing Strudel

Among the core features, provider-agnostic workflows, user question tools, side chat, cron, inline previews, and remote access are implemented using the same plugin system. bb is released under the MIT license, and users can clone and run the code, then request the creation of features that do not yet exist.