Editor's note: the letter below was sent in by a reader. We have lightly tidied the punctuation and left the rest alone. It describes a quiet, year-long way of using Claude that we have not seen written up elsewhere, and that we think is worth reading whether or not you would ever use Claude the same way.
Marc was not doing well. He had gone lazy in the half of his life that sat outside work, because the other half had swallowed everything. He worked, and he worked, and then he worked some more. The rat race did not just get to him; he started to embody it. He was the runner and the track and the finish line at the same time, and there was nobody left to ask whether the race had a point.
He wanted to change things. He was not interested in coaches, retreats, group programmes or paying anyone a monthly fee to tell him he was worthy. So he set Claude up as his life project manager and gave it the keys to a folder of small, plain files. This is how it turned out.
The Friday
It's Friday, 18:30. Marc has three days of stubble, kept on purpose. He's in clean office clothes he hasn't ironed properly, because he wanted them to look like he'd been wearing them since the morning. The cardboard box in his left hand is BBQ kit. The one in his right is beer. He's tired but the adrenaline is keeping him upright.
The host takes the boxes off him within thirty seconds and carries them to the grill. Marc finds a spot near the hedge and ends up talking to the retired woman who lives three doors down. She has strong views about dogs off leads and she explains them at length. Marc nods at the right moments.
Then Jennifer arrives.
He doesn't turn around. He can hear her voice and that's enough. He breathes in, breathes out, and tries to stop overthinking.
The first conversation
Let's rewind.
The first conversation with Claude was embarrassing. Claude had asked Marc what his ideal day looked like, and Marc typed something he wouldn't have said to a friend, a therapist, or his brother: a woman next to him, a couple of kids somewhere in the background, a Saturday morning kitchen. He nearly deleted it before he sent it. He sent it anyway.
Claude asked what would have to be true for that morning to actually happen.
The eight files
The system that grew out of that question was a handful of markdown files. Domains, basically. The pattern is unglamorous in the same way the Ralph Loop is unglamorous: clear inputs, files the model can read, a trail it can update.
ideal-day.md was the destination. Marc rewrote it three times across the year as his taste sharpened.
current-state.md was the honest one — a running comparison between where he was and where he was trying to get.
health.md held the weight, the sleep, the drinks-per-week number he'd been understating to himself, and a monthly note on energy.
events.md logged every BBQ, dressage, charity dinner, supper club and street drink he'd been to or been invited to. Over time he could see which kinds of evenings fed the Saturday morning he was trying to build, and which ones just wore him out.
work.md sorted his projects into cash cow and visibility. This was the file that eventually paid for everything else.
Three smaller files did supporting work. social-circle.md was the inventory of who he actually saw and who he was drifting from. travel.md sorted trips into rest, and into trips that served the version of himself he was working towards. family.md held his parents, his sister, his nephew, and the conversations he'd been postponing. The kids in the background of the ideal day belonged to specific people in this file.
Separate contexts on purpose
The files weren't separate for secrecy. They were separate so Marc could keep his contexts straight.
Claude did not need all of Marc at once. That was the point. It could work with health when health was the problem, work when work was the bottleneck, family when family was the thing being avoided. The system was useful because it saw patterns over time. It was tolerable because Marc decided which patterns belonged in the room. This is the same instinct behind avoiding context rot in long-running agents — keep the working memory small, named, and current, and the model stops arguing with its own earlier output.
When he asked Claude to draft an email to his boss, family.md stayed closed. When he was planning a weekend, health.md, events.md and travel.md were open together. The 17:00 email refusing a project never touched the BBQ. The BBQ never touched the Sunday lunch with his mother.
Working backwards from the ideal day
He updated the files almost daily. A new event went into events.md the night it happened. A check-up result went into health.md the morning it came back. A phone call with his mother that didn't go well got a line in family.md before he'd finished thinking about it.
Claude worked backwards from the ideal day. Not towards "find a partner" — Marc had been clear that wasn't the framing — but towards the question of who he'd have to be for that Saturday morning to be a realistic outcome.
The answer wasn't romantic. Lose the weight. Get the blood work sorted. Drink less, not zero, but a number that didn't cost him Mondays. Stop scrolling after 22:00. Sleep enough that 06:30 wasn't a punishment. Show up at events where the people he wanted to know were also showing up. No apps — Marc had been firm about this and Claude didn't push back. BBQs, dressage, charity dinners, the kind of evening where you stand around for three hours and the meeting isn't the point.
The work problem he had been wrong about
The work problem was the one he'd been most wrong about.
When Marc gave Claude his calendar, a few weeks of anonymised email summaries, and the project list he'd been avoiding, Claude told him something fairly directly. Most of what he was doing at work was maintenance. The projects that actually moved his career were the visibility ones, and those were the ones he kept postponing because the cash-cow work always felt more urgent. So Claude rebalanced it. Drafts, structure, prep work — the maintenance got faster, the visibility work started getting done, and within a few months Marc looked better at his job than he had in years.
One budget, not eight projects
That was the part he hadn't expected. He'd assumed self-improvement meant working harder on everything. What it actually meant was working smarter on the one thing that paid for everything else. The better he got at the work that mattered, the less he had to spend himself on the work that only looked urgent. He stopped spending Sundays recovering from Fridays, which freed up the gym, the cooking, the early nights, the events. The Friday BBQ stopped being something he had to recover from on Saturday.
The ideal day is not free. You have to build the capital for it.
The weight, the sleep, the alcohol, the scrolling, the work performance — they weren't separate self-improvement projects. They were line items in one budget, and the budget was paying for a Saturday morning Marc hadn't earned yet.
The files kept changing. Objectives shifted, tastes sharpened, some of what he'd written in month one looked naive by month four. The architecture was never finished because he wasn't.
- One file per domain of life — small, named, current.
- One destination file describing what "done" looks like, rewritten when taste sharpens.
- Daily updates, not weekly reviews. The state lives in the files, not in your head.
- One file is open at a time. The model only sees the part of you the current decision needs.
- Treat the whole thing as a single budget — sleep, money, attention, social — not eight separate self-improvement projects.
If a file can't be updated honestly, that is the file to look at first.
Jennifer
And then this Friday.
The shirt, unironed on purpose, because Claude had pointed out a few months earlier that Marc tended to overdress for casual events and it came across as trying too hard. The stubble, because he'd asked what looked deliberate without looking groomed. The two boxes, because Claude had said to bring more than he needed and hand it off quickly so he was useful to the host before he became a guest. The thirty minutes with the woman three doors down, because Claude had said not to let the whole evening collapse into one person — to actually be there, in the garden, with whoever was in front of him.
Jennifer walks in. Marc doesn't turn.
She finishes the conversation she's in. She turns. She sees him. She walks over.
She smiles. He smiles. He offers her a cool beer and she takes it.
What the file is for
The file does not replace the life. It prepares the conditions under which the life might finally happen.
The file ends here.