A caisson is an online worktree: a working copy that stays on Sailfork. Agents read and write files there directly, so nothing is cloned to a disk and no sandbox has to start first.
A caisson is the sealed chamber engineers sink into a river to build a bridge pier where it stands, without draining the river. Ours does the same for code: each agent works on the real repository, sealed off on its own branch, while everything around it keeps moving.
No. It works against the repository on Sailfork. Your own clones are untouched and keep working the way they do today.
Yes. Each opens its own caisson on its own branch, and their work meets only when you merge their pull requests.
Caissons are built for organizations running millions of agents across large repositories. Tell us your numbers when you ask for early access.
Through a pull request, behind the same reviews and branch rules as a change from a person. An agent cannot skip them.
Its commits live on the branch, the same as any pushed work. There is nothing left on a machine to delete.
Caissons are in private testing. Ask for early access and we will write when your organization can turn them on.