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Module 5 · 5 lessons · 2 hr 55 minOn the route

Operating the build

This module unlocks after you finish “Likes, then live: a count that moves the instant you click” (Module 4, Lesson 8). Sign in to track your progress.

The practical route starts at

Welcome →

Module 0, Lesson 1 · 10 min

Lessons

  1. 01Two people, one app: the ritual that re-tests everything you shippedOpens after “Likes, then live: a count that moves the instant you click”45 min
  2. 02The fence that was down: the check that settles what an answer can't40 min
  3. 03The missing post: broken by what it doesn't show30 min
  4. 04Caught before it ran: the question that goes before you press anything30 min
  5. 05The day something breaks: four moves, in order30 min

Module 4 ended with your app live and walked through by two accounts. Nothing new gets built in Module 5. You learn to re-check the app as two people, you meet three ways a build goes wrong before one of them costs you anything, and you learn what to say on the day your live link stops working.

What you'll be able to do

  • Re-test any app as two people at once: two browsers, two accounts, four checks in order.
  • Write the message that hands a wrong result to your agent, and re-run the check when it says it is fixed.
  • Ask the one question that stops a database change from deleting real data, before it runs.
  • Run the four moves for the day the live app breaks, including going back to the last saved working version without losing what people have typed in.

The split

Your agent owns the code, the rules, every error, and every fix. You own saying what you want, looking at the running app, running the checks, and saying when to save. You never read code, files, or error text. You describe what you see.

If your agent ever says something it needs is not installed on this computer, you do not install it yourself. Say: "Install whatever is missing. Ask me first if it needs my approval, and tell me when it's ready."

Lessons

  1. 01-two-people-one-app.md — two browsers, two accounts, four checks, and the message to send when one comes back wrong
  2. 02-the-fence-that-was-down.md — a build where one person could edit another person's words, and the check that caught it
  3. 03-the-missing-post.md — a feed reported finished, with its owner's own posts missing from it
  4. 04-caught-before-it-ran.md — a database change that would have deleted real data, stopped by one question
  5. 05-the-day-something-breaks.md — what to say, in what order, and how to get back to a version that worked

Before you start

Module 4 complete: your app live at its public address, with the two accounts you made on it.