Multi-agent engineering requires a live session layer in addition to durable Trackfiles, worktrees, checkpoint transactions, and commits. Trackfiles record durable work, worktrees isolate filesystem mutation, Transaction Guard protects mutation, and tmux preserves terminal state. A Session Manager r
Multi-agent engineering requires a live session layer in addition to durable Trackfiles, worktrees, checkpoint transactions, and commits. Trackfiles record durable work, worktrees isolate filesystem mutation, Transaction Guard protects mutation, and tmux preserves terminal state. A Session Manager records live actors, claimed files, PTY bindings, warm agent readiness, and restart reconciliation so