Builder School — Build Your AI Product Foundation

MODULE 01

Product direction30–45 minutes

Identify What
You Want to Build.

We picked one simple product for this course. Follow the example and see how the five starting decisions fit together.

The mission

See how a simple idea becomes a clear Product Idea — Version 1.

State what you want to build.
Identify the user the product is for.
Explain the product's main job and the problem it solves.
Describe the user experience (UX) you want people to have.

Your module

Follow the Product Idea — Version 1.

We filled in the five parts for you using a Simple Expense Tracker. Read each answer and notice what it tells the builder.

MODULE 01 · ONE COMPLETE JOB

Follow the Product Idea — Version 1.

We chose a Simple Expense Tracker so you can focus on learning the process instead of inventing a product.

See what the product is.
See who it is for.
See what the product should help them do.
See the problem it should solve.
See the experience it should create.

How this module works

Read the five answers. If anything is unclear, use the Teacher. When it makes sense, click I understand the course so far.

Course exampleProduct Idea Workspace

Ready

What is being built?

A simple expense tracker app.

This states the product in normal words. Who is it for?

People who want an easy way to keep track of everyday spending.

This identifies the main person or group the product serves. What should it do?

Help people record everyday expenses and see how much they have spent.

This identifies the main result the product should create. What problem does it solve?

People can lose track of where their money goes during everyday spending.

This identifies what is difficult, slow, confusing, costly, risky, or missing today. What experience should it create?

Fast, simple, clear, and easy to understand.

This defines how the product should feel for the user.

Product Idea — Version 1

See how the Product Idea comes together here.

For: The main user appears here.
Main job: The product's main job appears here.
Problem: The product problem appears here.
Experience: The intended user experience appears here.

Read the five answers. If anything is unclear, use the Teacher. When you understand them, use the button above.

MODULE 02

Product prompt

Use AI to Create
Your Product Prompt.

In Module 1, you saw the five decisions behind the product. Now watch how those decisions become one clear Product Prompt a builder can follow. Builder School does the writing for you.

MODULE 02 · ONE COMPLETE JOB

See how the Product Idea becomes a Product Prompt.

A Product Prompt is the clear instruction the builder follows. We created it from the same Simple Expense Tracker you saw in Module 1.

Start with the five decisions from Module 1.
Turn them into clear build instructions.
Add only the simple features the product needs.
Add boundaries so the builder does not overbuild it.
Read the finished Product Prompt.

Your job in this module

Watch how the information becomes one clear build instruction and how the approved decisions carry forward.

Course exampleProduct Prompt Workspace

Ready

From Module 1Product Idea — Version 1

Product: A simple expense tracker app.
User: People who want an easy way to keep track of everyday spending.
Purpose: Help people record everyday expenses and see how much they have spent.
Problem: People can lose track of where their money goes during everyday spending.
Experience: Fast, simple, clear, and easy to understand.

These are the same five decisions from Module 1.

What changes nowTurn decisions into build instructions

Builder School does this part

The Product Prompt does three simple things:

Names the product and user. The builder knows what is being made and who it is for.
States what the product should do. The builder gets the few features needed for the main job.
Sets boundaries. The builder knows what not to add.

Finished for youProduct Prompt — Version 1

This carries forward

The Product Prompt

Build a simple mobile-friendly expense tracker app for people who want an easy way to keep track of everyday spending. The app should let the user add an expense with a name, amount, and category; see expenses in a clear list; see the total amount spent; and delete an expense. Keep the experience fast, simple, clear, and easy to understand. Do not add accounts, bank connections, budgets, reports, notifications, payments, or other extra systems.

This is the instruction the builder will carry into the next module.

What to notice

The prompt is more specific than the Product Idea, but it still stays inside the same simple product. Nothing important was changed.

Read the finished Product Prompt. If anything is unclear, use the Teacher. When it makes sense, use the button above.

MODULE 03

Partner With AI

Partner With A.I.:
Build Your Expert Team.

Your Product Prompt is ready. Now see how the right expert roles give one product several focused points of view.

Part 1

Why You Need an AI Expert Team

One product needs different kinds of thinking. Expert roles help keep each kind of thinking focused.

Different questions need different expertise. Product direction, user experience, building, data, and testing are different jobs.
The product subject matters. Because this app tracks spending, one expert should understand how people think about everyday money without turning the app into financial advice.
You still own the direction. The experts help inspect the product. They do not quietly change the approved Product Prompt.

Part 2

See the AI Expert Team

Builder School chose the focused expert team for the Simple Expense Tracker. Follow how each role helps the same product.

MODULE 03 · ONE COMPLETE JOB

Understand why this product uses several expert roles.

Builder School built the team for this example. Focus on what each expert is responsible for and why the roles stay separate.

Review the Product Prompt carried forward from Module 2.
Read the finished expert team.
Notice that every expert has one clear job.
Use the Teacher if any role is unclear.
When the team makes sense, confirm that you understand the course so far.

Keep this simple

Builder School has already selected and checked the team. Study how each role supports and protects the product.

Course exampleAI Expert Team Workspace

Ready

From Module 2Product Prompt — Version 1

The Product Prompt

Build a simple mobile-friendly expense tracker app for people who want an easy way to keep track of everyday spending. The app should let the user add an expense with a name, amount, and category; see expenses in a clear list; see the total amount spent; and delete an expense. Keep the experience fast, simple, clear, and easy to understand. Do not add accounts, bank connections, budgets, reports, notifications, payments, or other extra systems.

This is the same Product Prompt from Module 2.

Product Prompt — Version 1 carried forward.

What changes nowGive the product focused points of view

Builder School does this part

The expert team does three simple things:

Protects the product. One role keeps the work tied to the approved Product Prompt.
Splits the thinking. Design, building, data, subject knowledge, and testing each get focused attention.
Prevents overlap. Every expert has one clear responsibility.

Finished for youAI Expert Team — Version 1

This carries forward

The AI Expert Team

1. Product Lead — Keeps every decision tied to the approved Product Prompt and protects the simple scope.

2. User Experience Expert — Keeps the app fast, clear, mobile-friendly, and easy to understand.

3. Front-End App Builder — Turns the approved product into the screens, buttons, expense list, and interactions the user sees.

4. Data & Logic Expert — Makes sure adding an expense, categories, totals, and deleting an expense work correctly.

5. Personal Finance Experience Expert — Keeps everyday spending labels and categories clear and useful without giving financial advice or adding extra finance features.

6. Quality Expert — Tests the important user flow, catches broken behavior, and checks that fixes do not break working parts.

These roles will be carried into the next module.

What to notice

The team is focused on this product. No role was added just to make the team look bigger, and no expert is allowed to change the approved product on its own.

Read the finished expert team. If anything is unclear, use the Teacher. When it makes sense, use the button above.

MODULE 04

Foundation decisions

Have Your Expert Team
Answer the Foundation Questions.

Your expert team is ready. Now watch how it turns the Simple Expense Tracker into clear decisions the builder will not have to guess about.

Part 1

Answer the important questions before building.

Foundation questions close the small gaps between the Product Prompt and the actual build. Builder School answers them for this course example.

Make the details exact. The builder should know the categories, screen behavior, and data rules.
Use the right expert. Each answer comes from the expert best suited for that question.
Keep the product simple. The answers add clarity without adding extra features.

Part 2

See the finished foundation answers.

Follow how the Product Prompt and AI Expert Team become exact build decisions for the same Simple Expense Tracker.

MODULE 04 · ONE COMPLETE JOB

Understand how the expert team removes guesswork before the build.

Builder School answered the foundation questions for this example. Focus on what was decided and why each answer matters.

Review the Product Prompt and expert team carried forward.
Read the finished foundation questions and answers.
Notice that each answer gives the builder an exact decision.
Use the Teacher if any answer is unclear.
When the foundation makes sense, confirm that you understand the course so far.

Keep this simple

Builder School has already completed the questions, answers, and checks. Study how those decisions remove guesswork from the build.

Course exampleFoundation Questions & Expert Answers Workspace

Ready

From Modules 2–3Approved Product Prompt + AI Expert Team

Carried forward

Product Prompt — Version 1

Build a simple mobile-friendly expense tracker app for people who want an easy way to keep track of everyday spending. The app should let the user add an expense with a name, amount, and category; see expenses in a clear list; see the total amount spent; and delete an expense. Keep the experience fast, simple, clear, and easy to understand. Do not add accounts, bank connections, budgets, reports, notifications, payments, or other extra systems.

AI Expert Team — Version 1

1. Product Lead — Keeps every decision tied to the approved Product Prompt and protects the simple scope.

2. User Experience Expert — Keeps the app fast, clear, mobile-friendly, and easy to understand.

3. Front-End App Builder — Turns the approved product into the screens, buttons, expense list, and interactions the user sees.

4. Data & Logic Expert — Makes sure adding an expense, categories, totals, and deleting an expense work correctly.

5. Personal Finance Experience Expert — Keeps everyday spending labels and categories clear and useful without giving financial advice or adding extra finance features.

6. Quality Expert — Tests the important user flow, catches broken behavior, and checks that fixes do not break working parts.

Product Prompt and AI Expert Team carried forward.

What changes nowTurn broad direction into exact build decisions

Builder School does this part

The expert team does three simple things:

Finds the gaps. It looks for details the builder would otherwise have to guess.
Answers with the right expertise. The best expert leads each answer.
Locks the answer. The decision is written clearly so the next step can use it.

Finished for youFoundation Questions & Expert Answers — Version 1

This carries forward

The finished foundation answers

1. QUESTION: What information does each expense need?
EXPERT: Data & Logic Expert
ANSWER: Every expense uses three pieces of information: name, amount, and category.

2. QUESTION: Which categories will this course example use?
EXPERT: Personal Finance Experience Expert
ANSWER: Food, Gas, Bills, Shopping, and Other.

3. QUESTION: What should the main screen show?
EXPERT: User Experience Expert
ANSWER: Show the total amount spent, the expense list, a clear way to add an expense, and a delete control for each expense.

4. QUESTION: How should the total amount work?
EXPERT: Data & Logic Expert
ANSWER: Add the amounts of all current expenses automatically. When an expense is deleted, update the total immediately.

5. QUESTION: Where should the expense data be saved for this simple course app?
EXPERT: Front-End App Builder + Data & Logic Expert
ANSWER: Save the expenses in the browser on the same device. Do not add accounts, cloud storage, or a backend for this example.

6. QUESTION: What must stay outside the product?
EXPERT: Product Lead
ANSWER: Do not add accounts, bank connections, budgets, reports, notifications, payments, financial advice, or other extra systems.

These exact answers will be carried into the next module.

What to notice

The Product Prompt did not change. The expert team simply removed guesswork by making the important details exact.

Read the finished foundation answers. If anything is unclear, use the Teacher. When it makes sense, use the button above.

MODULE 05

Final product foundation

Finish Your
Product Foundation.

Everything from Modules 1–4 is ready. Watch Builder School combine it into one clear foundation the build can follow.

Part 1

Put every approved decision in one place.

The Official Product Foundation keeps the product direction, expert team, and exact build decisions together.

One source of truth. The builder has one place to look for the approved product.
Exact decisions stay visible. Important details do not get lost between modules.
No new features are added. Module 5 organizes what is already approved.

Part 2

See the finished Official Product Foundation.

Builder School carries forward the Simple Expense Tracker and combines the approved pieces for you.

MODULE 05 · ONE COMPLETE JOB

Understand how the course becomes one build-ready foundation.

Builder School assembled and checked the foundation. Focus on how the approved pieces fit together into one source of truth.

Review the Product Prompt, expert team, and foundation answers carried forward.
See the simple final check Builder School completed.
Read the finished Official Product Foundation.
Use the Teacher if anything is unclear.
When the final foundation makes sense, confirm that you understand the course so far.

Keep this simple

The finished foundation is ready to study. Notice how every approved decision is carried into one build-ready source of truth.

Course exampleOfficial Product Foundation Workspace

Ready

From Modules 2–4Everything already approved

Carried forward

Product Prompt — Version 1 AI Expert Team — Version 1 Foundation Questions & Expert Answers — Version 1

Approved Course 1 work carried forward.

Final checkBuilder School checked the foundation

Builder School completed

1

Product direction matches.
The final foundation keeps the same Simple Expense Tracker.

2

Exact decisions are included.
Expense fields, categories, totals, storage, and boundaries are written down.

3

No important conflicts were found.
The Product Prompt, expert team, and foundation answers agree with each other.

4

No extra systems were added.
Accounts, bank connections, budgets, reports, notifications, payments, and financial advice stay out.

Finished for youOfficial Product Foundation — Final

This carries into Course 2

The final foundationThis is the complete source of truth for the Simple Expense Tracker.

What to notice

Nothing new was invented in Module 5. Builder School simply put the approved product direction, expert team, and exact foundation decisions into one final source of truth.

Read the final foundation. If anything is unclear, use the Teacher. When it makes sense, use the button above.

Build Your AI Product Foundation

Identify What
You Want to Build.

See how a simple idea becomes a clear Product Idea — Version 1.

Follow the Product Idea — Version 1.

Follow the Product Idea — Version 1.

Need help with your Product Idea?

See how the Product Idea comes together here.

You understand the starting product.

Use AI to Create
Your Product Prompt.

See how the Product Idea becomes a Product Prompt.

Need the Product Prompt explained more simply?

You understand the Product Prompt.

Partner With A.I.:
Build Your Expert Team.

Why You Need an AI Expert Team

See the AI Expert Team

Understand why this product uses several expert roles.

Need help understanding the expert team?

You understand AI Expert Team — Version 1.

Have Your Expert Team
Answer the Foundation Questions.

Answer the important questions before building.

See the finished foundation answers.

Understand how the expert team removes guesswork before the build.

Need help understanding the foundation answers?

You understand Foundation Questions & Expert Answers — Version 1.

Finish Your
Product Foundation.

Put every approved decision in one place.

See the finished Official Product Foundation.

Understand how the course becomes one build-ready foundation.

Need help understanding the final foundation?

You understand the Official Product Foundation — Final.