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RedPencil.ai
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An editor for every author.

RedPencil is an AI editor for novelists. It reads your whole manuscript and tells you, specifically and kindly, what’s working and what isn’t. It’s built as a pass before a human developmental editor, or alongside one.

Why we built it

A letter from our founder.

Illustrated portrait of T.C. at her desk
T.C.
RedPencil.ai

Kelowna · September 2026

Dear writer,

I wrote a novel. Finishing it was a feat in itself, but once I had, I realized I had read it so many times that I could no longer see it. It had become part of me. I knew every sentence by heart, and because I knew where it was going, and I knew what I meant, I could no longer tell whether I had put all of it on the page. Did the middle really hold? Was a promise I made in chapter three ever kept? Did the thing I meant to say get said, and understood?

My friends tried. They were kind, and genuinely impressed that I had written such a long collection of words at all. I needed more specific help than kindness. I needed an editor who understood me, my intent, and the heart of my story, and who also knew the rules of fiction I was supposed to be following. Where did the story break? Where did it come apart, and how could I fix it?

So I built the reader I needed. RedPencil is an AI editor. It reads the whole manuscript before it says anything, and every note points to the chapter and page it rests on. It has a better memory than any human reader, and it doesn’t get offended when I argue with it. When it isn’t sure, it says so. When it is sure, it has receipts. It suggests and it asks, and it never writes a word of the book. The sentences stay mine, and yours stay yours.

I’m revising my own novel with it now. It has to earn its place on that manuscript before it reads anyone else’s, and that is the test I hold it to. When RedPencil opens, you’ll be able to bring your whole book to it, as a pass before a human editor or alongside one.

With thanks,T.C.Founder, RedPencil.ai

p.s. bring the whole book.

What we believe

Four rules the editor follows.

  1. Read the whole book

    Structure, pacing and character only make sense across the full manuscript. The editor reads every word before it says anything.

  2. Point to the page

    Every note cites the chapter and page it rests on, and says whether it is a fact on the page, an inference, or an editorial judgment. When the editor isn’t sure, it says so. see Sample reports, Editorial Letter, Ch. 11, p. 162

  3. The writer decides

    The editor works toward the book you say you’re writing, not a template. It suggests and asks; it never writes prose for your book, and every decision stays with you.

  4. No comp titles

    The editor won’t name published books yours resembles. It describes the shelf, and you choose the names.

Questions, press or partnerships: write to us.

Read by the editor its founder built for her own book.

It is working on T.C.’s novel first; leave your email and we’ll tell you the day it can read yours.