Builder · B1 Specify before you build · Session 3

Reading a diff without knowing code

After this hour you can

Check that a change did what you asked and nothing else.

What exists at the end

One change accepted knowingly, one rejected

60 minutes

15 min explain · 40 min practice · 5 min wrap

Every session is one hour and ends with something real. If nothing exists at minute sixty, the session was scoped wrong.

This session's material is still being written

Sessions are written one at a time, as they are needed. What the hour is for and what you leave with is above — the brief and the practice steps land later.

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