All labs · Lab 50 · beginner · 45 min

Find the use case worth building

Turn a customer's vague wish for AI into one use case with a number that says when it worked.

You build: A scored list of five candidate use cases and a one-page brief for the winner.

  • A real or imagined customer (Parcel Desk works)
  • No code
  1. 01Write up three short interviews: who does what today, how long it takes, what goes wrong

    ls interviews | wc -l

    You pass when: Three files, each with at least one number someone gave you (hours a week, claims a day, error rate).

  2. 02List five candidate use cases and score each: reach, impact, confidence, effort

    The top score is rarely the most exciting idea. It is usually the dull task many people do every day.

    grep -c "^|" rice.md

    You pass when: A table with five scored rows and a total (reach times impact times confidence, divided by effort).

  3. 03For the winner, write the success number and how it will be measured

    grep -n -i "success" BRIEF.md

    You pass when: A sentence with a number and a date, such as: 70 percent of claims under 100 decided with no human, at under 2 percent wrong payouts, by week six.

  4. 04Finish the brief: problem, users, success number, what is out of scope, what needs a human

    wc -w BRIEF.md

    You pass when: Under 400 words. A person who was not in the interviews can say what you are building and how you will know it worked.

The check runs on the computer, not on your word: a step passes when its command exits with 0 there.

Your computer · Fleet · off

Computers are not set up on this site yet. Run each command on your own machine and compare with "You pass when".