October 2026

An app's runtime is auto by default: each deployment reads the commit it builds and runs where it says. A wrangler config, a JavaScript framework or plain files run on the edge; a Dockerfile, or a server in another language, runs in a container. Set edge or container to pin it.

An agent's push is checked before it lands: the default branch only fast-forwards and can't be deleted. A branch an agent rewrites or deletes is kept for 30 days; list them with Repo.backups and make one a branch again with Repo.restore_backup.