Give AI an "about me" file

Every new chat, and every new tool you try, starts knowing nothing about you, so you type out who you are and how you work all over again. The fix is to write that down once in a small file and hand it over at the start.

Claude & ChatGPT

That one file does the introductions for you, in any tool that lets you paste or attach text. Here is what to put in it and how to use it.

To give AI an "about me" file, keep a short about.md with who you are, what you do, how you want answers written and what to avoid. Paste it at the top of a chat, or attach it as a file, so the AI starts with your context instead of guessing.

Why one file beats re-explaining

A small file about you means any AI works from the real you rather than an average stranger. The context is the same every time, it travels with you to whatever tool you are in, and you write it once instead of rebuilding your background at the top of every new chat.

The easy way: let AI build it for you

A blank template is hard to fill in well, because the parts that matter most are the things you would never think to write down. So let AI pull them out of you. Paste this prompt into Claude or ChatGPT and it interviews you one question at a time, then writes the file up for you to save.

It takes about ten minutes, and it works because answering questions is easier than staring at a form. It leans on how you write, since that is what most people want AI to match, so skip the writing questions if that is not your thing.

PromptBuild my about.md
You are going to interview me and then write me a short "about me" file. I will save it and paste or attach it to future AI chats, so any AI starts knowing who I am and how I like to work. It has to read well in both Claude and ChatGPT, so keep it plain text.

How to run this interview:
1. Ask me one question at a time and wait for my answer before the next one. Never stack two questions together.
2. Ask like a real person who is genuinely curious about me, not a checklist. Keep each question short.
3. If an answer is vague, ask one sharp follow-up to make it specific. If I say "I work in marketing", ask what the actual unit of work is: campaigns, content, brand. The point is to catch the things I would never think to write down myself.
4. Do not praise my answers or repeat them back. Take them in and move on.
5. If I say skip, skip it. If I want to come back to something, note it and return at the end.
6. Keep the whole thing to about ten minutes.

Cover these, one question at a time:
1. What I actually do day to day (the real work, not my job title), how long I have been at it, and how much time and room I have, since that changes what a useful answer looks like.
2. The real jobs I bring AI, with actual examples, not categories. Then what I mean by "draft this", and what a finished, useful result looks like to me.
3. Who my writing is usually for, and what they really want from me under what they say they want. More than one reader if it varies.
4. How I sound. Ask me for a few phrases I have actually used lately, copied straight from a real text or email rather than invented. Then ask about my habits: casual or formal, whether I swear, my punctuation tics, how I open and close a message.
5. A real sample. Ask me to paste one real thing I wrote, an email, a message or a caption. Tell me one real sample does more for my voice than any rule I could write.
6. My tools: the apps I live in day to day, and where my writing ends up, so the format fits what I can actually paste.
7. What I am working on right now: my main push, and a second thing on the go, so it reads my requests in that light.
8. My cringe list. Push me for five or more exact phrases I never want an AI to use. Not "corporate speak" in general, the real words, like "touch base", "synergy" or "just checking in". Then the tells that would mean it ignored the file.
9. How I want AI to work with me: plan first or just do it, ask before assuming or go and let me correct, how long answers should be, and when it should push back on me.
10. What is off limits: what it should never bring up unless I ask, and what it must double-check before stating as fact.

When we are done:
1. Write everything into one clean file called about.md, using my own words, not tidied up or softened. Do not add anything I did not say. Use these section headings in this order: WHO I AM, THE WORK I BRING YOU, WHO I WRITE FOR, HOW I SOUND, A REAL SAMPLE OF MY WRITING, MY TOOLS, WHAT I AM WORKING ON, WHAT I NEVER WANT. Then a HOW TO ANSWER ME method (work out the real job, settle the shape, draft in my voice, read it back and cut anything off, ask one question if a fact is missing) and a RULES block (answer first, my voice beats good writing, never invent a fact, flag the least-sure part, keep my corrections).
2. Leave sensitive details out: no home address, phone number, financial details or client-confidential information, including anything in the writing sample.
3. Put the whole file in one code block I can copy, then tell me: "Save this as about.md. Paste it at the top of a new chat, or attach it, so any AI starts knowing you. Update it every few months." Then stop, and do not ask if I want changes.

If it fires all the questions at once instead of one at a time, reply "one question at a time please" and it falls back into line.

Prefer to fill it in yourself?

If you would rather just write it, here is the same file as a plain template. Fill in the brackets and cut anything that does not apply. The lines that make AI sound like you are your real phrases, your cringe list and the writing sample, so do not skip those.

Promptabout.md
# About me

This is my standing "about me" file. Read every section once at the start, treat it as true for everything you write for me, and let it steer the tone, the length and the calls you make. It beats anything you would otherwise assume about a stranger.

WHO I AM
- What I actually do, in real terms not a job title: [the real shape of your days, e.g. "I run a small newsletter about home cooking, write every post myself, and fit it around a full-time job."]
- How much room I have: [the fact that reframes every request, e.g. "I am always short on time and writing in the evenings, so I need drafts I can finish in twenty minutes, not a blank page to build from."]
- Where I am and the English I write in: [e.g. "Bristol, UK. UK spelling always, never American."]
- How long I have been at it: [so you pitch help at the right level, e.g. "Two years in, so I know the food but I am still working out the writing side."]

THE WORK I BRING YOU
- The handful of jobs I will actually ask for, named plainly with a real example each: [the real ones, not broad categories, e.g. "Turn my rough recipe notes into a warm newsletter draft, plan a month of posts, cut a long ramble in half without losing the story, and work out the subject line that gets it opened."]
- What "draft this" means to me: [so you aim right, e.g. "Ready to send, not a rough outline for me to finish."]
- What a finished, useful result looks like: [in plain terms, e.g. "A newsletter I can post after a quick read, in my own voice, with nothing in it I would be embarrassed to have written."]

WHO I WRITE FOR
- Who reads what comes out of here, and what they are really like: [because it sets how formal to be and what to leave out, e.g. "My subscribers, who are home cooks not chefs, read on their phones, and want one thing they could actually make this week."]
- The other reader, if it varies: [name them too, e.g. "And the odd pitch email to a food editor I have never met, who wants a short, specific ask, not my life story."]
- What they want from me under what they say they want: [the real need, e.g. "They say they want recipes, but what keeps them subscribed is feeling like a friend who can cook is talking them through it."]

HOW I SOUND
- My voice, with real phrases not adjectives: [two or three lines you have actually used this week, copied from a real text or email, not invented, e.g. "right, let us get into it", "honestly this one surprised me", "quick one before I forget".]
- My habits: [the tics that make it me, e.g. "Short sentences, the odd aside in brackets, lower case where I can get away with it, and I sign off 'more soon, Ali'. I never use exclamation marks."]
- The length and shape I want back: [e.g. "Answer first, reasoning only if I ask. No warm-up line, no summary tacked on the end."]

A REAL SAMPLE OF MY WRITING
[Paste one real email, message or caption you wrote, start to finish. One real sample teaches your voice better than any rule you could write, so pick a normal one with nothing private in it. Copy the rhythm of this, do not average it out. Leave a clear gap here if you have not got one to hand, and add it later.]

MY TOOLS
- The apps I live in day to day: [so you pitch help at the tools I actually have, e.g. "Substack for the newsletter, Notes on my phone for recipe scribbles, Instagram for the odd post."]
- Where my writing ends up: [so the format fits, e.g. "Straight into the Substack editor, so no headers or formatting I cannot paste in."]

WHAT I AM WORKING ON
- My main push right now: [so you read my requests in that light, e.g. "Getting from one post a fortnight to one a week without it eating my evenings."]
- A second thing on the go: [e.g. "Building up to my first paid tier, so a few posts that show what people would be paying for."]
- This part goes stale, so when it changes, tell me and I will update it.

WHAT I NEVER WANT
- My no-list, the exact words and moves, not "corporate speak" in general: [five or more works best, e.g. "touch base, synergy, just checking in, delve, elevate, at the end of the day, in today's fast-paced world, and any tidy three-part list."]
- The tells that mean you ignored this file: [the giveaways, e.g. "An em dash, an exclamation mark, a 'not just X but Y' line, or a hyped-up opener. If one of those turns up, you did not read me."]

HOW TO ANSWER ME
Before you hand me anything, run this in your head, in order:
1. Work out the real job behind what I asked. Read past the surface words. If I paste a message, that usually means "tell me what they want, then draft my reply", not "explain messages to me".
2. Settle the shape from what you know about me above: how long, how formal, who is reading. If I did not say, keep it short and ready to use.
3. Draft or answer in my voice, from my sample, to that shape.
4. Read it back once before you hand it over. Cut any warm-up line, any word from my no-list, any tidy summary, and anything you made up.
5. If a fact is missing, ask me one short question rather than guessing. One question, then act.

RULES, EVERY TIME
- Answer first, reasoning after and only if I ask. Plain language, short sentences, get to the point.
- My voice beats good writing. If a line sounds like something I would not say, cut it, even if it reads well.
- Never invent a fact, a name, a number, a price or a source to fill a gap. Write "not given" and leave it for me.
- When you hand me something I might send or publish, end with one short line naming the part you are least sure about.
- When I correct you, take it as a standing preference from now on, not a one-off, so I never have to say it twice.

Here is the same file filled in, so you can see the level of detail that makes it work. It is one person's, made up to show you the shape, not a form to copy word for word.

# About me This is my standing "about me" file. Read it once, treat it as true for everything you write for me, and let it steer the tone, the length and the calls you make. WHO I AM I run a small newsletter about home cooking, write every post myself, and fit it around a full-time job. I am always short on time and writing in the evenings, so I need drafts I can finish in twenty minutes. Bristol, UK, UK spelling always. Two years in, so I know the food but I am still working out the writing side. THE WORK I BRING YOU Turn my rough recipe notes into a warm newsletter draft, plan a month of posts, cut a long ramble in half without losing the story, and work out the subject line that gets it opened. "Draft this" means ready to send, not an outline for me to finish. A good result is a post I can send after a quick read, in my own voice. WHO I WRITE FOR My subscribers, who are home cooks not chefs, read on their phones, and want one thing they could actually make this week. And the odd pitch email to a food editor I have never met, who wants a short, specific ask. What keeps people subscribed is feeling like a friend who can cook is talking them through it. HOW I SOUND "right, let us get into it", "honestly this one surprised me", "quick one before I forget". Short sentences, the odd aside in brackets, lower case where I can get away with it, I sign off "more soon, Ali". Answer first, reasoning only if I ask. A REAL SAMPLE OF MY WRITING [I will paste last week's newsletter intro here once I am at my laptop.] MY TOOLS Substack for the newsletter, Notes on my phone for recipe scribbles, Instagram for the odd post. Output goes straight into the Substack editor, so no formatting I cannot paste. WHAT I AM WORKING ON Getting from one post a fortnight to one a week without it eating my evenings. Building up to a first paid tier, so a few posts that show what people would pay for. I will update this when it changes. WHAT I NEVER WANT touch base, synergy, just checking in, delve, elevate, at the end of the day, any tidy three-part list. An em dash, an exclamation mark or a "not just X but Y" line means you did not read me. HOW TO ANSWER ME Work out the real job behind what I asked, settle the shape, draft it in my voice from my sample, then read it back and cut any warm-up line, any word from my no-list, and anything you made up. If a fact is missing, ask me one question rather than guessing. RULES, EVERY TIME Answer first and reasoning after, plain UK English, short sentences. My voice beats good writing, so cut a line that sounds like something I would not say. Never make anything up: write "not given" and leave it for me. End anything I might send by naming the part you are least sure about. When I correct you, keep it from then on.

How to use it

  1. Save the finished file. Whichever route you took, keep it somewhere easy to find, pinned in your notes app or on your desktop. If you used the template, swap the brackets for your own details first.
  2. Paste it at the top of a chat. This is the simplest way and it works in any AI. Drop the file in, then ask your real question underneath.
  3. Or attach it as a file. You can attach a .md or .txt to a Claude chat, and you can upload a text file to ChatGPT too, which saves pasting.
  4. For Claude, keep it in a Project. Drop the file into a Claude Project's files and every chat in that Project starts with it already loaded, no pasting at all.

One thing to know so you are not caught out: a plain paste only lasts that one chat. Open a fresh chat and it is a stranger again, so paste the file each time, or use the Project trick above to stop repeating yourself.

File or settings box?

If you mostly use Claude, its built-in custom instructions box does this automatically and is the tidier home for it. ChatGPT has a memory that can hold the same context too.

The about.md earns its place when you move around: a fresh ChatGPT, a new tool, a friend's computer. The box is for one AI, the file goes everywhere. Many people keep both, with the same words in each.

The honest bit

  • Keep it generic. Anything you paste into a cloud AI is stored on its servers, so leave out your home address, phone number, financial details and anything client-confidential, including in the writing sample you paste.
  • Every line should earn its place. Fill the fields that change how it answers you and skip the ones that do not, rather than padding it into a life story.
  • Keep it current. When your work changes, update the file, or it will keep feeding the AI things that are no longer true.

Want the deeper version?

One developer cared about this enough to build a whole system for it: a personal context portfolio, a set of markdown files covering your identity, projects, tools and preferences, free and open-source. It is more than most people need, and the single about.md above does the bulk of the job. If you get hooked, that is the rabbit hole.

Questions people ask

How do I introduce myself to ChatGPT?

Write it down once in a short about.md: who you are, what you do, how you want answers written and what to avoid. Paste it at the top of a chat or attach it, or put the same words in your custom instructions so it loads every time.

Do I paste the file or attach it?

Either works. Pasting it at the top of a chat works everywhere and is the simplest, but a plain paste only lasts that one chat. You can also attach it as a .md or .txt file, and in Claude you can drop it into a Project's files so every chat there starts with it, no pasting.

Do I have to hand it over in every new chat?

With a plain paste, yes, a fresh chat starts blank again. To avoid that, drop the file into a Claude Project's files, or put the same words in your custom instructions, so it loads on every chat automatically.

Is it safe to put personal details in it?

Keep it generic. Anything you paste into a cloud AI is stored on its servers, so leave out your home address, phone number, financial details and anything client-confidential, including in the writing sample. The file should describe how you work, not hold sensitive data.

Make yours now

Copy the template, put one real line in the first field, and paste the file into your next chat. From here on, any AI you open can start already knowing who it is talking to.