Stack checkpoint
You've finished the 2026 AI Tech Stack chapter. Take a minute to confirm the defaults and the "when to deviate" rules actually stuck.
There are 14 questions in the bank — each visit picks 5 at random, so retaking gives you different ones. If you miss one, the result card links you to the exact section to revisit.
You must pass (≥ 60%) to unlock the Next button and Chapter 5 in the sidebar.
AI Tech Stack checkpoint
Pass to unlock the Next button below→ Continue to Chapter 5: Evaluation & Measurement — you can build the stack now; next you learn to measure whether it's any good.