Stable open-source release

One contract for four engines

Codex, Claude Code, OpenCode and Pi emit the same events into the same session model, so a session reads and behaves the same whichever engine ran it. The record of which provider session an engine holds is typed and owned by the backend. If the backend restarts, a run in flight is recovered rather than failed.

Children an engine spawns natively show up in the parent's timeline, and long child transcripts are bounded so the page stays fast.

Slack and artifacts

Slack replies settle durably: a run that finishes while Slack is slow still posts its result, and when an artifact is revised, the exact revision you asked for is the one delivered. Each artifact revision carries a quality record that says whether it was verified or not, and reads always reflect the current revision.

Computers

Workspace discovery works with Daytona-compatible providers, and Cube sandboxes enforce root identity strictly.

Self-hosting

The Quick Start installs from a frozen lockfile and was verified from a fresh anonymous clone. Known limitation: self-hosted realtime runs on a single backend in this release.