How to replicate a founder's writing style

By Jack Stovell · published 2026-09-20

Every ghostwriter knows the note. "It's good. It's just not quite me." No detail, because the founder cannot say what is off; they only know it when they read it. The writer guesses, revises, and the second draft is a little more generic than the first, because generic is the safe direction.

Replicating a founder's voice is a measurement problem, and the measurement removes the guessing.

Score the drafts. Paste something the founder wrote themselves, then the ghostwritten or AI-drafted pieces. Each one is scored against the founder's own writing, with the habits that slipped named and numbered. That list is the note the founder could not give.

What the founder cannot tell you

Voice lives in habits nobody articulates: contraction rate, how many asides go in brackets, whether they open with the point or build to it, how short their shortest sentences get, whether the humor is dry or warm or absent. Ask a founder to describe their style and you get adjectives. Measure three of their emails and you get numbers that a writer, or a model, can actually match.

The three-step version

  1. Collect the founder's own writing. Emails, Slack messages, memos, anything written without help. 3,000 words is plenty; 1,000 will do to start.
  2. Measure it. A profile turns that writing into 45 attributes and a narrative. The free check on this page does a one-piece version.
  3. Score every draft before it goes to the founder. Fix the two or three features that moved. The founder's note stops being "not quite me" and becomes "yes".

If AI is doing the first draft

Then the measurement is the prompt. Give the model the founder's numbers, not "write like a direct, visionary CEO", and hold the output to them with a score. ScriptGrain's Studio and Agency plans keep one profile per client and let the whole team draft against the same measured standard, which is what "consistent voice across writers" actually means.

Questions

How much of the founder's writing do I need?

Enough to be them: 1,000 words of unassisted writing starts a profile, 3,000 makes it steady. Slack and email count; polished marketing copy someone else touched does not.

Can several writers share one founder profile?

Yes. Studio and Agency plans share profiles across a team, so every writer's draft is scored against the same measurement rather than each writer's impression of the founder.

Is this different from asking the founder to review?

It happens before the review. The founder still reads the piece; they just stop being the only instrument that can tell whether it sounds like them.

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