LESSON 4 VIDEO SCRIPT: Teach Claude how to operate (the global rule)
Target: 75-100 seconds spoken. Talking head, on-screen text in [brackets].

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[ON SCREEN: You built the brain. Now nothing makes Claude use it.]

You built the brain in Lesson 3. Now here's the problem you might not see yet: nothing actually makes Claude use it.

Shared memory only works if every session reads it going in and writes to it going out. If you have to remember to say "check STATE dot M-D first" every single time, you've just rebuilt the old problem. You're still the oversight. And you'll forget on the busy days, which are exactly the days it matters.

[ON SCREEN: ~/.claude/CLAUDE.md: read in every project, automatically]

So we don't rely on you remembering. We write the rule down once, in a place Claude reads automatically in every project, forever. That place is your global instructions file. Whatever lives in it, Claude obeys everywhere on your machine, without being told.

[ON SCREEN: The ritual: Read first. Write last. Don't touch what isn't yours.]

We drop in one block that installs one ritual. Read first, write last.

[ON SCREEN: READ FIRST: session start: read STATE, register if new]

Read first: the moment a session starts, before anything else, it reads STATE to see what's in flight and who owns what. If the project isn't registered, it registers itself.

[ON SCREEN: WRITE LAST: session end: log it, update your row]

Write last: before it wraps, it logs what it did and updates its row, so the next session inherits the truth instead of a blank slate.

[ON SCREEN: Never work a workstream another session owns]

And the rule in the middle that kills the collisions: never work a workstream another session owns. If it belongs elsewhere, note it, and let you relay it.

[ON SCREEN: Write it once. Applies to next year's projects too.]

Read first, write last, don't touch what isn't yours. Once it's in the global file, it applies to the project you open today and the one you create next year. You never paste it again.

[ON SCREEN: Ran prompt 01? Already installed. Prompt 03 = check + repair.]

If you ran prompt 01 in Lesson 3, this is already in. Prompt 03 is how you check it, repair it, or fix the path. It won't duplicate the block.

[ON SCREEN: Run prompt 03 → foundation done]

Run prompt 03 to confirm the rule is live. That's the foundation finished. Next module, we put it to work.
