margin

Does this answer the prompt?

Paste the prompt and your draft. This checks whether your essay is actually answering what was asked — it won't rewrite anything or tell you how to fix it.

10–3,000 characters
10–20,000 characters

What you enter here is sent to Anthropic's API to generate your result and isn't attached to a Margin account. You don't need to include names, contact information, or anything else you'd rather not share.

Takes about 10 seconds

Reading both against each other...

Prompt-alignment results

What the prompt is actually asking

    Where your draft delivers

      Where it drifts or falls short

        This is a diagnostic, not a review — it won't tell you how to fix the gaps. If you want a mentor to work through the actual revision with you, that's what Margin (opens in a new tab) is for.