LESSON 5 VIDEO SCRIPT : Run multiple sessions without collisions (the message bus)
Target runtime: 90-110 seconds spoken. Talking head with on-screen text cues.

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[ON SCREEN: Lesson 5 : Two sessions, no collisions]

VO: When one client is moving and another one is on fire, I don't wait. I open a second Claude session. Now I've got two of them awake at the same time, and that's exactly where most people break things.

[ON SCREEN: two session windows side by side]

VO: Two sessions that don't know about each other will quietly overwrite each other's work. One renames a pipeline, the other builds a workflow pointing at the old name. So the whole system runs on one rule.

[ON SCREEN: THE RULE : a session never works a workstream another session owns]

VO: A session never works a workstream that another session owns. And STATE.md is what makes that rule real.

[ON SCREEN: STATE.md table : columns Workstream, Owner, Status]

VO: Every workstream is a row. Every row has an owner. Before a session touches anything, it reads STATE.md. If the row says another session owns that work, it stops, notes it, and hands it back to me.

[ON SCREEN: arrow from Session A to a folder labeled outbox/]

VO: So how does work actually move between them? Not session to session. They can't talk to each other. It moves through one folder: the outbox.

[ON SCREEN: outbox/ : a paste-ready prompt file]

VO: Session A realizes a job belongs to a different project's session. Instead of doing it in the wrong place, it writes a complete, paste-ready prompt and drops it in the outbox. Goal, IDs, what was decided, what to write back into STATE.

[ON SCREEN: me, copying from one window, pasting into another]

VO: Then I copy it and paste it into Session B. I'm the relay. The outbox is the message bus. STATE.md is the shared memory both sides trust.

[ON SCREEN: catch me up : hand off : relay]

VO: You don't memorize any of this. Prompt 04 in the Prompts Pack is the three you reuse every day. Catch me up, hand off, relay. Grab it, and you can run two sessions tomorrow.

[ON SCREEN: Next : make every new project obey, forever]

VO: Next lesson, we make every new project you create obey these rules automatically.
