Jacob's Brain
Cuts your offer down until it sells.
A skinny offer names a single problem and charges one price for it. It sells faster because the buyer can tell in a sentence whether it's for them. Ask the brain to cut an offer down and it will tell you what to drop and what the price is doing.
Ask it: what should my first offer be?
Finds the cheap first yes that pays for the big one.
The $5 buyer isn't the point. The point is that a stranger has paid you once, which changes every email that follows. The brain knows what sits on each rung, what each one is allowed to promise, and where people fall off.
Ask it: what goes above my $5 thing?
Hands you the five days, one idea at a time.
A launch doesn't need a month. What changes across the five days is which objection you answer, and only the last day mentions time running out. The brain has the running order and the emails that go with it.
Ask it: plan my five days
Tells you what to write tomorrow, and the day after.
The hard part of a daily email isn't the writing. It's having something to say on a Tuesday in February. The brain knows where Jacob gets them, how a small moment becomes a letter, and which ones sell without asking for anything.
Ask it: what do I write tomorrow?Nobody else wrote a word of this.
Video by Dustin Cantrell
I'm Jacob. I write a letter most days, and have done for four years. I run a consultancy on my own in three days a week. In three years I have made $1.6M+ in profit from consulting and my own digital products. My own product, Modern Maker, did $854K in 24 months. Clients have sold $4.1M+ working from my blueprints.
None of that came from one channel. It came from LinkedIn, a daily email, a tiny YouTube channel, low-ticket products and $5-a-day ads, all feeding one offer. Everything I've worked out about how those fit together is in here, and I add to it whenever something new works.
The brain tells you what I think. If you want it built with you, that is Modern Maker. The checkout it all runs on is one I built myself, Swipefast.
What still works, and what stopped.
My call, not a surveyStill works
- One offer, one price
- A letter every working day
- A cheap first yes before the real sale
- $10 a day on ads, not $1,000
- Writing in public under my own name
Stopped working for me
- Booking discovery calls
- Outbound and follow-ups
- Chasing whatever is going viral
- Six modules and four bonuses
- Posting for reach
These are my positions, argued out across four years of letters rather than measured in a study. The brain will tell you why I hold each one, and where I've changed my mind. Ask it which side something falls on.
Every number here has a source.
ReceiptsThe brain never answers without telling you where the answer came from. This page holds itself to the same rule. Below is the archive the brain is built from, one square for every day since the first letter, straight out of my email account.
The brain holds 555 of those letters, plus 1,059 posts, 38 X threads, 206 videos and 2 long articles. The letters that are missing mention my family, a client by name or something I sell. They are absent from the index rather than hidden behind a prompt, which is the only version of that promise worth making.
- Letters sent
- 1,232
- Days with a letter
- 1,087 of 1,229
- Longest run
- 653 days
- First to last
- 26 June 2023 to 5 November 2026
The calendar is counted from the archive itself, not typed in by me. The figures below are claims I've made publicly under my own name. Each one links to the post or article it came from, with the date, so you can read it in context and decide for yourself.
- $1.6M+ in profit across the businesses I've built The solo consultancy playbook, 30 Apr 2026
- $854K from Modern Maker in its first 24 months The solo consultancy playbook, 30 Apr 2026
- 400+ clients signed since 2023, working on my own LinkedIn, 22 Oct 2026
- $400K+ in digital product sales, no sales calls LinkedIn, 3 Nov 2026
- $130K installing funnels for 26 small business owners this year LinkedIn, 23 Oct 2026
- 1,420,229 impressions in three months, and the posts with the most views earned the least LinkedIn, 26 Sep 2026
- $100-120K from a YouTube channel of about 1,000 subscribers and 300 views a video The solo consultancy playbook, 30 Apr 2026
Where the money actually came from.
How it actually runsI didn't pick one channel and go deep. I ran writing, email, paid and video at the same time, on my own, and each one does a different job. Here is what each is actually worth, with the post or article the figure came from.
-
01
Writing
The posts everyone saw made the least money.
1,420,229 impressions in three months
That is LinkedIn's own number for the quarter. When I lined the posts up against what they earned, the order flipped. Memes and opinions took the views. Insight and authority posts took the buyers.
So I stopped chasing reach. The split now is roughly 80% authority and 20% broader content inside my topic. I would take ten thousand right views over a hundred thousand empty ones.
LinkedIn, 26 September 2026The order is mine, from that post. The bars show which way round views and money came out, not a measured scale. -
02
Email
$400,000 in product sales, and not one sales call.
1,232 letters, one a day since June 2023
Every letter points at one offer, and that offer is already in the post that went out the same morning. By the time somebody reads the letter they have the context, so there is nothing left to convince them of.
Nobody books a call. They read, they click, they buy, and the post-purchase emails do the asking after that.
LinkedIn, 3 November 2026One post, one letter, one offer. The same loop every working day for four years. -
03
Paid
63 new customers in a month, on $10 a day.
$10 a day on Meta, behind the organic
The ads don't carry this business. The writing does. Ten dollars a day sits behind it for awareness, and it only went up once the front end was proven to convert.
That month I changed one product and one message. Nothing else. 63 customers later the experiment was in the green.
LinkedIn, 7 April 202663 dots, one per new customer, from the month that post describes. -
04
Video
A thousand subscribers. Six figures.
$100-120K from about 300 views a video
No viral moment and no thumbnail science. The videos are long walkthroughs for people already on the list, and they close the ones writing alone can't.
A small channel pays when the people watching it are the right people. That is the whole trick, and it is the same trick as the content split above.
The solo consultancy playbook, 30 April 2026What that channel could give the brain. The cut from 97 down to 20 is the boundary screens doing their job: most of the rest stray into things I keep off this site.
one brain
Writing1.4M impressions
Email1,232 letters
Paid63 customers on $10 a day
Videoabout 1,000 subscribers
Every figure above is a claim I've made publicly under my own name, linked to where I made it. The two tools underneath all four channels are Modern Maker, where I work through this with people, and Swipefast, the checkout I built to run it.
What an answer looks like
Cited, alwaysMy workshop buyers never buy anything else. What do I fix?
- Ask what your ascension rate actually is. Most people have never counted it, and the number is usually worse than the guess.
- The workshop has to end pointing at one thing. If it ends with three options, it ends with none.
- Sell the next step while they are still in the room, not in a follow up email a week later.
Source: The Maker Letter, 28 Jul 2026. "Your workshop buyers aren't buying"
How it works
Connect, ask, shipConnect it
Add the MCP URL to your agent, then sign in with your email and a 6 digit code. Free, and there is no password.
Ask it
Your agent consults the brain whenever the job is an offer, a launch, an email or a page. You don't have to prompt it specially.
Ship it
It answers with the thinking and the source behind it. Your agent does the work from there.
Pick how to connect it
Free, one URL- Open Settings, then Connectors.
- Choose Add custom connector.
- Paste the URL below and click Add.
- Claude opens a sign in page. Enter your email and the 6 digit code.
https://jpegs.app/mcp- Open Settings, then Connectors.
- Choose Create, and paste the URL below as the MCP server URL.
- Sign in with your email and the 6 digit code.
https://jpegs.app/mcp- Run this in your terminal, then follow the sign in prompt.
claude mcp add --transport http jacobs-brain https://jpegs.app/mcp- Open Settings, then MCP, then Add new MCP server.
- Use the configuration below.
{
"mcpServers": {
"jacobs-brain": {
"url": "https://jpegs.app/mcp"
}
}
}- Add it from the terminal.
codex mcp add jacobs-brain --url https://jpegs.app/mcp- Install it as an extension.
gemini extensions install https://github.com/jacobpegs/jacobs-brain- Any client that speaks MCP over streamable HTTP takes this.
{
"mcpServers": {
"jacobs-brain": {
"type": "streamableHttp",
"url": "https://jpegs.app/mcp"
}
}
}I never had this, so I built it.
I came home from London and took a pay cut because my father was ill. My mother had lost her house to debts that were never hers, and the first thing I did once I could afford it was buy it back for her. This year I bought my family the home we used to drive past and not talk about.
I didn't have an audience for most of that. I had a letter I wrote most days, a few small things to sell, and a habit of putting the whole method out in public before anyone asked me for it. The offers, the hooks, the sequences, the way I grew a list and made it pay without a following. All of it went on the web, free, as I worked it out.
Trouble is, free stuff scatters. Four years of it is spread across LinkedIn, a daily email and a small YouTube channel, and you can't search any of it from where you actually work.
Nobody sat me down and showed me any of this. I'd have paid a lot for it, back when I couldn't have.
So here it is in one place, in the tool you've already got open. I'm done hiding the family part, or the money part, or the parts that didn't work. People buy who you are before they buy what you do.
