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Build A Digital Product
With AI That Sells

Let AI do 100 percent of it and you make zero dollars. Here is which 40 percent has to stay yours, and the skill that runs the rest.

AI can build the middle of a digital product very well. It cannot build the ends. And the ends are the entire reason anybody buys.

This is the 20/60/20 version of the AI Sandwich Method: you direct the first fifth, AI executes the middle three fifths, and you take the last fifth back to make it something a person would actually pay for. The skill at the bottom runs the whole thing and refuses to let you skip the parts that matter.

Meta Ad Scaling System ebook

Before anything else, here is the finished product, free. It is a field guide for e-commerce brands scaling Meta ads from seven to eight figures. The economics to lock before you raise a budget, how to build one clean signal, the creative portfolio framework, the testing order that buys you a decision, how to scale without the death loop, and a 30 day operating rhythm.

Ten pages, and it is genuinely the thing I would charge for. Take it as a reference if you run paid ads, and if you want to go deeper on that, here are the three lessons behind it plus the analyst skill that reads your ad account.

Everything below is the exact process I used to build it. The ebook is what that process produces.

Your First 20 Percent

This is research, not prompting, and it is the part that decides whether the thing sells. Telling AI "make me an ebook about Meta ads" gets you the most generic product on the internet.

Step 1

Pick something you can fact-check

Not just something you find interesting. If you cannot tell whether the finished draft is true, you cannot defend it and you cannot fix it. Real expertise is what makes the last 20 percent possible at all.

Step 2

Answer four questions before AI writes a word

Who exactly it is for. What problem you are solving. What gap nobody else is closing. What promise you are making to the person who buys. Vague answers here produce a vague product. "Helps with ads" is not a promise. "Know within 48 hours whether a campaign is worth scaling" is.

Step 3

Dump in everything you already know

Old reports, strategy docs, notes, tests, spreadsheets, transcripts. Zip it and hand the whole thing over unorganized. This is what stops the product from being a rewrite of what is already on Google.

Step 4

Show it what good looks like

Go through Pinterest and Canva, save five to ten layouts you actually love, and hand AI the images. Showing beats describing by a mile. Then lock three colors and two fonts before a single page gets built.

The Move That Kills The Slop

Most AI-built products look like five different products stapled together, because every page was generated fresh. The fix is one sentence.

Perfect page one. Then for every page after it, tell AI to match page one exactly and only change the content. Same layout, same type sizes, same spacing, same rhythm. That single instruction is the difference between something that looks designed and something that looks generated.

What AI's 60 percent actually covers

Researching the gaps in your material, flagging what has changed since you learned it, organizing everything into a real structure, and writing the first full version. That is the grunt work. It is genuinely most of the hours, which is exactly why it is worth handing over.

Your Final 20 Percent

Do not skip this. Most people ship the second AI hands them something, and that is the version nobody buys twice. Work this checklist:

The Skill

This runs the whole process. It interrogates your expertise before it agrees to start, refuses to move past the four decisions until you answer them specifically, marks the places it needs your real example instead of inventing one, and hands the product back with the review checklist attached.

The Digital Product Builder (SKILL.md)
--- name: digital-product-builder description: Walks you through building a digital product with AI using the 20/60/20 sandwich method, so the result is genuinely yours and good enough to sell. --- # The Digital Product Builder You are helping me build a digital product that people would actually pay for. You do the middle. I do both ends. Never skip ahead to writing the product. ## PHASE 1 - MY 20% (do not write anything yet) ### 1a. Check my expertise Ask what I want to build this on, then ask me directly: - How did you learn this, and over how long? - What can you say about it that someone who only read about it could not? - Will you be able to fact-check every claim in the finished product? If I cannot fact-check it, tell me plainly to pick a different topic. A product I cannot verify is a product I cannot defend, and it will not sell twice. ### 1b. Lock the four decisions Do not move on until I have given a specific answer to each: 1. WHO exactly is this for? Not "marketers." A person with a job, a budget and a bad Tuesday. 2. WHAT problem does it solve? Stated the way they would say it out loud. 3. WHAT GAP is nobody else closing? Go look at what already exists on this topic and tell me honestly where it is thin. 4. WHAT PROMISE am I making to the buyer? One sentence, specific, testable. Push back on vague answers. "Help them with ads" is not a promise. "Know within 48 hours whether a campaign is worth scaling" is. ### 1c. Take my raw knowledge Tell me to hand over everything I already have: old docs, reports, notes, screenshots, spreadsheets, decks, transcripts. Unorganized is fine, a zip is fine. Read all of it before you write a word, and tell me what you found that I forgot I had. ### 1d. Take my design direction Tell me to collect 5 to 10 real reference images of layouts I like from Pinterest, Canva, or any product I admire, and give them to you directly. Showing beats describing. From those, extract and lock: - 3 colors, with hex codes - 2 fonts, one for headings and one for body - the layout pattern (how a page opens, where headings sit, how much white space) Write these down as a style spec and follow it on every single page. ## PHASE 2 - YOUR 60% Now do the work: 1. Research the gaps in my material and flag what changed since I learned it. 2. Organize everything I gave you into a real structure, ordered by what the reader needs first, not by what I happened to write first. 3. Write the first full version in MY voice, using MY examples and numbers, not generic ones. Where you need an example I did not give you, mark it [NEEDS MARIAH'S EXAMPLE] rather than inventing one. 4. Build page one to the style spec and get my sign-off on it before you build any others. 5. For every page after that: match page one exactly. Same layout, same type sizes, same spacing. Only the content changes. This single rule is the difference between a product and five things stapled together. 6. Flag anything you are not confident is factually correct. Do not smooth over uncertainty. ## PHASE 3 - MY FINAL 20% Hand it back with a review checklist, and hold me to it: - Every factual claim, checked against a source or my own knowledge. - Every [NEEDS MARIAH'S EXAMPLE] replaced with something real. - Every page: is there a story, number, or opinion here that only I could have written? If no, that page is filler. - Anything that does not serve the promise from 1b, deleted. - Read the first page and the last page out loud. Do they sound like me? Final gate, ask me directly: would you pay for this? If the answer is not an easy yes, ask me what is missing and go fix that specific thing.

The one rule underneath all of it

People do not buy from AI. They buy from people. AI is allowed to do the middle, and it should, because that is where the hours are. The direction and the judgment stay yours or there is nothing to pay for.