It is installed
You have an assistant that lives in a folder on your computer. Point it at one and that folder becomes its world: it reads everything in there without you attaching anything, changes what you ask it to change, and uses the programs already on your machine.
Everything below is what you can now do with that. Ten minutes of reading, and none of it is technical.
The one idea underneath all of it
It knows that project properly. Every file, every version, every note. Ask it anything about that work and the context is already there: you never explain the background twice.
It knows what is in the folder and nothing else. Start it somewhere else and it knows nothing about this. Where you start it is the single most consequential thing you decide.
1 · The everyday use
About files already on your computer. No uploading, no attaching, no particular format, no preparation.
A minute each, roughly. If it needs something to do the job properly it will ask: but if you are vague it guesses confidently rather than stopping, so on anything that matters, add the sentence “show me first.”
2 · What makes it yours
Anything you explain can be written down where it gets read at the start of every session, forever. This is the difference between a chat window and a setup that knows your work.
Show it thirty things you have written and tell it to learn the pattern. Drafts come back sounding like you rather than like software.
“Never touch the signed folder.” “Never send anything without showing me.” Held mechanically, not as a polite note it might forget.
Your clients, projects, conventions and standards. It stops asking and starts already knowing.
Not just how to do the job but when it is done. It runs those checks on its own work before showing you.
A running record of what you chose and why. Six months later, ask “why did we do it this way” and get the real answer.
The five-paragraph instruction you keep retyping becomes one word you define once.
The effect compounds. What you have in month three is noticeably better than week one and you never sat down to improve it: you just kept telling it things.
3 · The part most people miss
It does not need you watching. Describe a job and it runs on a schedule, or on a trigger, and the result is waiting when you come back.
The thing you do every Monday. It runs once while you watch so you can correct it, then does it weekly unasked.
Anything landing in a folder gets read, renamed, filed and logged before you have closed the window.
Hand it four hours of grinding work at six in the evening. It is done in the morning.
4 · Several at once
An agent is a second copy of the same assistant with its own job. It gets a written brief from you and starts completely blank: it cannot see your conversation or your screen. It does the work somewhere else and reports back one answer.
You brief one coordinator; it splits the work, sends out several at the same moment, and assembles what comes back. You have one conversation while five happen.
Several things to read, check or gather at once. On the right job it is the biggest jump available here. On the wrong one it is an expensive way to get four confident answers to a question you asked badly.
You cannot correct one mid-flight: it cannot see you, so the brief is your only steering. And reading in parallel is safe while writing in parallel is not: fan out to gather, come back to one to change anything.
5 · How far it goes
Nothing below is a different product. It is the same window and the same sentences, pointed at something bigger: and this is the honest upper end of what it is used for.
It was built to write and maintain code and that remains the deepest thing it does. If you are not technical, the relevant part is that it can build you the small tool nobody will ever sell you: the niche thing only forty people need. You describe it, and you own it afterwards.
Invoicing, chasing, filing, reconciling, reporting, the follow-ups you forget. Not one task automated, but the connective tissue between all of them.
Two decades of documents, correspondence and contracts, answered across the whole body at once. That has never been affordable before.
Continuity across hundreds of thousands of words or hundreds of hours of footage. What was established in chapter four. Which take you preferred and why.
It can drive the programs already installed. The ceiling is not what it can do alone: it is what everything on your computer can do, operated by sentences.
Email, documents, calendar, storage, notes. With your permission it reads them and acts in them from the same conversation, so a question spanning three systems is one question.
The other half of the picture
None of these are obvious from ten minutes of using it, and all of them are worth knowing before you hand it something that matters.
The tone never changes. Confidence is not a signal: on anything consequential, ask it to show you where each claim came from. It can, and that is the check that works.
Everything in your head about how you work is invisible until it is in a file. Most disappointing results trace back to this rather than to the tool.
It can tell you a document is inconsistent. It cannot tell you whether the deal is good, or whether you should send it.
For anything numeric, tell it to write and run an actual calculation rather than reasoning the total out. Then it is exact.
Unless told otherwise it may produce a plausible detail where it should have said “this is missing.” Ask it to flag gaps and it will.
Reading four hundred documents properly takes minutes, not seconds. It is unattended, not instant, and those two get confused constantly.
6 · The one trade worth understanding
One folder is where you start, not where it stops. It can have every folder you own, your email, your documents, your calendar, your storage. That is genuinely how good it gets: the work you never do because gathering it takes longer than the answer is worth starts getting done.
Say this plainly
The more you give it, the more convenient it gets and the more inherent risk you take on. Those two move together and they always will. Anyone telling you otherwise is selling something.
So widen it deliberately rather than all at once. Start on one real project; give it more when you find yourself wishing it could see something else. Every change stays reversible, the guards refuse destructive work at any width, and you can tell it to ask before it acts: permanently, or just while you decide whether you trust it.
Widening is a decision you make on purpose, in a minute, and can walk back just as fast.
Next
That was what it is and what it can do. The next page is how to be genuinely good at it: the habits, the exact sentences, the mistakes that keep most people at ten percent of what this is worth, and a four-week path to follow. It is longer, and it is the part that pays.