AI Co-writer — Plan mode
The discipline of an outline, with help on every part.
Plan mode works the way good writing actually works: outline first, produce section by section, then rewrite. You approve each step, and every change arrives as a diff over your own text. It’s a superset of the essay.app method — same loop, fuller workspace.
Beta opens this season — starting with students and researchers.
OUTLINE → PRODUCE → REWRITE
Three phases, and you approve every one
Plan mode never jumps to a finished essay. It moves through the same stages a careful writer does — with you in control at each handoff.
Outline
Tell the Co-writer what you’re writing. It proposes a structure — sections, sub-points, the spine of the argument. You move things, cut things, and approve the shape before any prose exists.
Produce
Work through the outline one section at a time. The Co-writer drafts a part; you read it, keep what holds, and send back what doesn’t. The document grows in pieces you’ve seen.
Rewrite
Tighten a paragraph, change the register, or restructure a section. Every revision arrives as a diff over your text — nothing is silently overwritten.
A SUPERSET OF ESSAY.APP
Same discipline — with everything a paper needs around it
What it keeps
- Outline before you draft
- Produce one section at a time
- Rewrite deliberately, not all at once
- The author stays the author
What it adds
- Citations and structured references in the same document
- Academic paraphrase and an AI-detector preview
- An Authorship Certificate that documents the process
- First-language scaffolding for ESL writers
Edits you can see
Nothing changes until you accept it
Every suggestion — a new sentence, a tighter paragraph, a restructured section — appears as a diff layered over your text. Accept it, reject it, or rewrite it. The document is never silently overwritten, so the record of who wrote what stays honest.
Questions about the Co-writer
How is Plan mode a superset of the essay.app method?
Essay.app popularised a disciplined loop: outline first, then produce, then rewrite. Plan mode keeps exactly that loop and adds what a real paper needs around it — citations, structured references, paraphrase, and an Authorship Certificate. Same discipline, fuller workspace.
Does it write the essay for me?
No, and that’s deliberate. It proposes structure and helps you produce each part, but you approve every step and every change is a diff. You stay the author — which is why the Authorship Certificate exists.
Can I draft in my first language?
Yes. If English isn’t your first language, you can sketch a passage in your own language as scaffolding and move it into academic English as the argument settles. The goal is always the English draft — the scaffolding just gets you there faster.
What does “diff-overlay” mean in practice?
Suggested edits appear as tracked changes layered over your text — additions, deletions, rewrites — so you can accept or reject each one. The document only changes when you say it does.
Is this the same as a chatbot?
No. A chatbot hands you a wall of text to copy out. The Co-writer works inside your document, section by section, against an outline you approved — so the structure is yours, not borrowed from a single prompt.
Plan the paper first
then write it, section by section
Plan mode is part of the Copyeditor beta. We’re onboarding students and researchers first — apply and we’ll reach out as spots open.
