Use when driving one or more tasks end to end from the local bare repo's `main` worktree — a feature designed with the user first when its scope is open, or a ready list of tasks — ordering them, cutting a worktree per task, handing each to a subagent that runs new-feat, running prep-pr with every finding fixed rather than reported, and shepherding each pull request to a squash merge and worktree teardown. Also the route for a request to review and fix an open pull request another tool or session wrote, through review-pr. Not for a one-file change, and not outside the bare repo.