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See how Margin helps a writer find the essay underneath the draft — without writing it for them.
Feedback that teaches — never rewrites.
Margin's feedback on one sentence of this student's draft
She just stood at the kitchen window for a long time, looking out at them.
From the sample Common App personal statement below — a real first draft.
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This is a sample draft with real, pre-written Margin feedback — no account, no live analysis. Select a highlighted passage on the left to see what Margin noticed.
🧭 Prompt Compass — what this essay is actually being asked to do
This is a Common App personal statement responding to Prompt 1: a background, identity, interest, or talent so meaningful the application would feel incomplete without it. The reader's real goal is to meet a specific mind and understand how it works — not to receive a résumé in paragraph form. What earns the space: one interest, shown through a moment only this writer could have lived. Common miss: naming the interest ("engineering") and listing evidence for it, instead of letting one scene reveal who you are. Margin holds this target in view as it reads.
“Persistence with a Screwdriver” — first draft
When I was seven, I took apart the kitchen radio to see where the music lived. I did not find music inside, only a green board and a tangle of wire, but I remember being amazed that something so small could hold so much. After that I took apart whatever I was allowed to: a broken remote, a wristwatch, an old telephone. My parents started calling me “the engineer,” and by middle school I had decided they were right. I wanted to build things. I wanted to understand how the world worked and then make it work better.
In high school I looked for every chance to prove I belonged on that path. I joined the robotics team freshman year and stayed for four. I learned to solder, to write enough code to make a motor turn, and to read a wiring diagram without panicking. We qualified for the regional championship twice. I was never the strongest programmer in the room, but I was the one who stayed until the robot actually worked, and I came to believe that was its own kind of talent. Engineering, I told myself, was persistence with a screwdriver.
The summer before junior year, my grandmother's tomatoes started dying. She is seventy-eight and waters her garden by hand every morning, the same way she has for forty years. But that July she spent two weeks in the hospital, and while she was gone no one remembered the plants. When she came home and saw the shriveled vines, she didn't say anything about it. She just stood at the kitchen window for a long time, looking out at them.
I bought a nine-dollar hose timer from the hardware store that weekend. It only had settings for whole hours, though, and her raised beds needed short bursts or the water would run off the hard, dry soil before it soaked in. So I did the only thing I knew how to do. I took it apart. I wired in a cheap microcontroller left over from robotics and wrote a few lines of code to open the valve for ninety seconds, three times a day.
It did not work the first time, or the second. The first version released all the water at noon, the worst possible hour, and I stood in the yard and watched the soil steam. The second leaked because I had mounted the valve upside down. I kept a notebook on the back porch and wrote down what failed each day and what I would try next. By the third week, the new growth came in green. My grandmother still waters by hand most mornings, because she likes to, but now the timer covers the days she can't get outside.
That project taught me the value of persistence and problem-solving. Engineering is not only about knowing the right answer; it is about trying, failing, and trying again until something works. I want to bring that same determination to college and, eventually, to a career where I can solve problems that matter to people.
I know the path to becoming an engineer will be difficult. But I think I am ready for the challenge. I want to build things that quietly take care of people, the way a nine-dollar timer took care of my grandmother's garden when she couldn't. That, more than any title, is the kind of engineer I hope to become.
Or work through them yourself: click any highlighted passage in the essay, or use Next. The nine notes are grouped below by how much they'd change the draft — start at the top and the rest will make more sense.
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On your own draft, Margin can run a focused pass on any of these — grouped by what they help you do:
The same simple process you just experienced — on a real draft.
The student highlights any part of their draft they're unsure about — an opening, a paragraph, a line that isn't landing.
A specific, honest response in a real mentor's voice — what's working, what isn't, and why. Never a rewrite, never a paragraph to paste in.
The student makes the change themselves and comes back as often as they revise. The essay stays entirely theirs.
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Built from nearly two decades of writing instruction — including almost a decade as a university instructor, plus years of private tutoring.
“I'm Maggie Krug, the founder of Margin. I've spent almost two decades teaching writing, including almost a decade as a university instructor, along with years of private writing tutoring. I built Margin around the same methods I've used to help writers discover what they want to say, understand what readers are hearing, and revise without losing their own voices.”
— Maggie Krug
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