Marginalia & the AI companion
Help beside the page, never on it
Pin notes, to-dos, and references to the exact paragraph they belong to, and talk to a companion that has actually read your book. It reads your chapters, finds mentions, checks your canon, and quotes real text — and it never writes a sentence of your prose.
Marginalia
Notes that stay with the sentence
Every thought lands where it matters. A note, a to-do, a reference — each one pins to a paragraph and lives in the margin beside it, not in a separate document you'll forget to open. The prose stays clean; the thinking stays attached.
Come back a week later and the context is exactly where you left it — the fix you meant to make, the fact you needed to check, right next to the line that raised it. See the marginalia docs for how pinning works.
The companion
An AI that has read your book
The companion chat isn't a blank assistant working from a paste. It's grounded in your real book — it reads your chapters, finds every mention of a character or place, and answers by quoting your actual text. Ask where you first named the inn, or whether a thread ever paid off, and it looks.
It knows your Map too, so a question about your canon is answered against your canon. The AI companion docs cover everything it can reach.
Consistency
It watches your canon, and nudges
Ask for a consistency check and the companion reads your draft against your canon — the eye colour that drifted, the timeline that slipped, the name that got spelled two ways — and shows you where. When something looks off as you work, it can nudge rather than wait to be asked.
It can even organise your Map from chat — reconcile an alias, note a new attribute — so your book's memory stays current without leaving the page. Every result lands beside your prose, in the margin or the Map. Never in the prose itself.
The one thing it can never do
Write your prose
The companion reads, finds, checks, and organises — but it never returns a sentence for your chapter. It's the most useful reader you've ever had, and it will never be the writer. The pen stays yours.
Start writing — free