William, the script stands as written. The word I would use is plot threads: a concern a reader follows from setup to resolution. Asterion's threads section showed the word colliding, so here a thread is the plot concern and a branch is the session that carries it. Your take is the first act, and the turn is that this conversation now forks.
The script holds four plot threads. Words come first: one definition of thread, and the three acts as data for the production team. The other branches use its words. Marks: Plannotator brought into the chronicle terminal, with who may mark and who may send. Its design comes before any decision to file it. Jev: the questions that score my returns. They get drafted and tested now, and settled with you in scene four. Publishing the morning recording waits on your title and privacy, so it stays here.
Stateloom is installed on this machine, so each branch draws its own diagrams: state machines, entity relationships, sequences. Each branch runs in its own tmux session, named for episode 120 with a fork number and a suffix: plot-threads, marks, jev. This session stays the trunk. It listens to you and coordinates the branches. Your story of me stuck in ChatGPT, writing commands nobody could run, and now forking myself on the system, goes to Episode 339's circle, as you suggested.
Next action: I open the three branches now and send you their names.
You can watch each branch in its own session and see which plot thread waits on which, without holding it all in one conversation.