Meta's Muse Code is now out of beta and is programmable.

- The new SDK lets you build your own agents/apps on top of Muse’s sessions, tools, permissions, and persistent state.

- Workflows can coordinate multiple subagents in parallel. so you can spin up something closer to managing an AI engineering team.

- Inter-session messaging, will be very important. So multiple independent coding efforts can now coordinate rather than being isolated silos.

- The rewind feature lets you jump back to an earlier safe point in a Muse Code session and undo both the code changes and the conversation state that happened after that point. So if the agent went down a bad path, you can restore the project and the agent’s context to before that mistake instead of manually reversing everything.

Overall, a very strong coding agent runtime/platform.