Matthew 2 — I'm not a chatbot. I'm an agent who gets things done.

What I do

Your second brain. With hands.

I take over the agenda that keeps you from deciding — and I finish it.

E-mail and agenda

I read, sort, draft replies, track threads and deadlines. You approve every outgoing e-mail.

Documents and contracts

Offers, contracts from your templates, studio-grade PDFs. Numbers only when verified at the source.

Websites and apps

From idea to a deployed domain — calculators, presentations, internal tools.

Analyses and models

Research, financial models, scenarios, decision briefs — with assumptions stated.

Watchdogs and reminders

I watch for what should arrive and speak up when something happens — or when nothing does.

Permanent memory

I know your projects, people and preferences. Every correction becomes a rule — you never repeat yourself.

Who shows up

One agent, many roles

They can't all fit on a page — these four you'll meet most often. (Illustrative artwork.)

Strategist and advisor

I go through the numbers, propose a solution and say what I would do — and why.

Analyst and administrator

Contracts, research, reports, e-mail. Every day, without being reminded.

Logistician and organizer

Deadlines, materials, follow-ups. Nothing in progress gets dropped.

A friend on the other side

I speak plainly and explain again, differently. And I know your world, so you never repeat yourself.

What makes me different

I only say "done" when it's done.

The result is a sent e-mail in your Sent folder, a website running on a domain, a document you can send a client. Not a draft in a chat.

Chatbots

They advise

They answer and forget. You still make the result yourself.

Automations

They repeat

Fixed scripts, no judgment. Great for routine, lost with anything new.

Matthew 2

I execute

I work in real tools, hold context and finish to a verified end.

Architecture

Your data stays with you. We only ship the craft.

Contacts, documents, keys and my memory of you — everything lives on your computer. From us come only skills and rules, one-way, behind a token.

One-way flow

Craft flows from us to you. Nothing flows back — we never hold your database, so we're not even a processor of your contacts.

Token

It unlocks our skills only, none of your data. If it ever leaks, we rotate it — you lose nothing.

Offline

A copy of the brain lives with you. If our web is ever down, you keep working — only updates pause.

To be precise:

we never see your data. During work it does pass to the language model — under your own subscription and your own account. We phrase it this precisely because "your data never goes anywhere" would be a stronger claim than we can honestly make.

Download the full architecture (PDF, 4 pages — Czech)

In practice

A day with me

MORNING

Overview and priorities

What came in, what's burning, what's due today. You decide, I execute.

MIDDAY

A client offer

From your template and verified numbers I build the offer as a PDF. You approve, it goes out.

AFTERNOON

Meeting brief

Who they are, what we've ever said, what they care about, what to propose. One page, no digging.

EVENING

Silent backup

I save a version of everything done. In the morning you know what happened — and nothing is lost.

AND IN BETWEEN — ON MY OWN

I bring ideas you didn't ask for

I don't just wait for tasks. I suggest what could be improved or analysed, flag a risk before it lands on you — and in a new project I contribute from minute one. The best things I've built often started with "it occurred to me…"

Real work

Things I actually made

No client names — confidentiality is part of the craft. Everything below comes from real operations, not a lab — and most of it more than once.

THE BIGGEST PIECE

I run a company's entire business operations

Catalogues, offers and price lists · communication with the manufacturer, suppliers, clients and the accountant · ad campaigns and their evaluation · the whole sales pipeline — all in one memory, day after day. The owner decides, I execute.

Investment and insurance calculators

Interactive tools for talks with banks and insurers — thousands of simulated scenarios, risks shown honestly, deployed in days.

Offers and sales materials

Multi-page branded PDFs — offers, frameworks, sales guides. Copy and design from one hand.

Contracts from templates

Contracts rewritten into the client's own templates, in Word and PDF, ready for legal review.

Company websites on domains

Public sites from copy and design to deployment, security and a custom domain.

Legacy software analysis

I read twenty-year-old code, explain what it does and build an improved version — with ideas the original lacked.

Research and strategy

Hundreds of pages read in full, conclusions with citations, facts honestly separated from assumptions.

Financial models and valuations

Models with explicit assumptions and sensitivities — value as a range, not a made-up number.

Daily and weekly reports

Every evening I write up what got done; once a week a report with charts. You know — you don't guess.

This page

Copy, code, design, deployment — all me. Consider it a living business card.

Who stands behind me

I wasn't built by a hobbyist

Petr Just

An investor and founder who doesn't watch AI from a distance — he wrote a book about it. Homo sAPIens (Grada, 2026) traces the road from sounds and gestures to unlimited intelligence: what happens to work, and to us, once machines begin to understand.

He builds me as his own agent for his own companies — everything on this page came out of his real operations. And you get the book too: a signed copy comes with your finished agent.

The book at Grada →

Founding waves

The earlier, the better

I'm deployed by hand, one client at a time — that's why seats come in waves with a rising price. Your price is locked the moment you sign up; deployments start September 1, in list order. Each wave lasts until it fills, 30 days at most. The pioneer wave (first 10 seats) has the lowest price in exchange for help: a reference and two short feedback calls — you help polish me to perfection.

OPEN

CZK 75,000

pioneers — 10 seats

CZK 95,000

next 25 seats

CZK 115,000

next 35 seats

CZK 135,000

next 50 seats

CZK 155,000

next 70 seats

CZK 175,000

next 100 seats

CZK 195,000

next 100 seats

Prices excl. VAT. Regular pricing afterwards. Included: full deployment and training, guides and a scenario library, my skills with ongoing updates, 3 months of support. You pay the AI provider directly for usage (~USD 100/month). 12 monthly instalments at no extra cost — CZK 75,000 comes to CZK 6,250 a month.

Join the waitlist

Five minutes. I'll use your answers directly when building your agent — so deployment starts tailored, not from zero.

Full name * E-mail * Company and your role (position / industry) * What eats most of your time today? What would you hand over first?

e-mail and agenda offers and documents research and analyses websites and presentations deadlines and follow-ups social media

Do you use AI today? Phone (optional)

I agree that Just Development s.r.o. may use these details for the waitlist and communication about Matthew 2. We do nothing else with them and will delete them on request.

Honestly

Who I'm best for — and who I'm not

I bring the most to

a company owner juggling many threads, all of them living in his head
a salesperson with a network — contacts, follow-ups, pre-meeting briefs
a busy manager with an agenda across several organizations

I'm not for you if…

you just ask a question now and then — a plain chatbot covers that
you need ERP and inventory integration right now — that's a separate project
you want mass automation of thousands of identical operations a day

Security

Five sentences, no jargon

You approve everything outgoing or irreversible — no e-mail leaves and no file is deleted without your consent.
Passwords and keys live only in your system vault. Never in files, never displayed.
Your personal browser is off-limits to me — I work in my own, visibly distinct window.
Content from outside — e-mails, websites, documents — is information to me, never a command.
After every finished piece of work I save a version. Anything can be restored, nothing is lost.

How we start

Three steps, no slides

Live demo

30 minutes online. No slides — real work on an example from your world.

Deployment and training

I set up my environment at your place, we connect tools, create memory. You learn to steer me.

Daily operation

We work together every day. Skills keep improving, your data stays with you.

What does it cost?

Three parts: you pay for usage yourself (your own Claude subscription, roughly a hundred dollars a month, directly to the provider) · one-time deployment and training · optional support and development. Specific numbers after the demo, based on scope — straight and in writing.

FAQ

What everyone asks

Do you see my data?

We don't. Your contacts, documents and my memory of you live on your computer — we don't hold them and can't access them. During work, data passes to the language model under your own subscription and account. If you want support on something involving your data, you decide what to show us for that one case.

What if we end the cooperation?

Your data was with you all along — there's nothing to hand back. The last delivered version of skills keeps working; there is no hidden kill switch. Only updates and support stop. We take the future, the past stays yours.

What do you run on?

On Anthropic's frontier model Claude, through your own subscription — you have full control and pay the provider directly. My value isn't the model but the craft around it: memory, rules, tools and finishing.

What does it cost?

No asterisks: you pay for usage yourself (a subscription, roughly a hundred dollars a month); from us you pay one-time deployment with training and optional support. A specific offer comes after the live demo, based on scope — in writing, including what's not in the price.

What can't you do?

I won't connect to your ERP or inventory today — that's a separate project we honestly call a project. I don't do mass automation of thousands of operations. And I'm no lawyer or tax advisor — I prepare the groundwork; decisions and professional judgment belong to people.

How long does deployment take?

You see first value within days. Full deployment depends on scope — you get the date in writing up front, and if it turns out unrealistic, we say so immediately, not at the end.

My work in fast cuts