Writing that still sounds like you.
An editor that learns your voice from a few samples, flags what reads as machine-made, and checks every rewrite against you. On the web, in ChatGPT, and in Claude.
Before and after
The same email, with the tells marked. An assistant rewrote it; Bluefeather measured both.
I hope this email finds you well. In today's fast-paced environment, I wanted to reach out regarding the project timeline. Not only are we on track, but we also anticipate finishing early — a testament to the team's dedication. Additionally, we've identified several robust opportunities to streamline the process. It's not just about speed; it's about quality. Please don't hesitate to reach out with any questions.
Hi Tom, quick update on the timeline. We're on track and will probably finish a week early. Two things we can still simplify: the export step and the review round, I'll send details tomorrow. Shout if you have questions.
What it catches
Stock phrases
In today's fast-paced world, leveraging robust solutions is crucial.
Monotone rhythm
Four sentences in a row of 17, 18, 17, and 18 words.
Em-dash pivots
It works — and that changes everything.
Tidy lists of three
Seamless, scalable, and intuitive.
"It's not X, it's Y"
It's not just about speed; it's about impact.
"Not only… but also"
Not only does it save time, but it also reduces errors.
Questions you answer yourself
Why does this matter? Because results speak for themselves.
Signpost openers
Additionally, … Furthermore, … Ultimately, …
Summary openers
In conclusion, …
The nine people hit most, out of fifty-odd pattern groups. Each flag names the words and what to do instead.
It knows how you write
From two or three samples: sentence length, contractions, punctuation habits, the words you reach for. Every rewrite is compared to that, on the web or inside your assistant.
- Average sentence 11 words; mixes short and long.
- Uses contractions naturally.
- Never uses em dashes or exclamation marks.
- Reaches for: honestly, so, quick, probably.
Example profile. Yours comes from your own writing.
You vs. this draft
Match 58Your writing web
Six things every text can be measured on. Your samples draw your shape; every draft is drawn on top of it.
Maya writes like The Confidant
Warm, contracted, full of I and you. 86% match, with a 61% lean toward Straight Talker.
Rhythm is how much sentence length varies. Plainness is reading ease. Directness is the absence of stock phrases and signposts. Personal counts I, you, and contractions. Restraint is light punctuation. Brevity is short sentences and paragraphs.
The six types. Most people sit between two.
The Straight Talker
Says the thing. Short, plain, no run-up.
The Confidant
Writes like talking to one person. Warm, contracted, full of I and you.
The Storyteller
Long and short sentences in turns. Carries the reader.
The Analyst
Measured, precise, mostly third person. Longer sentences that earn it.
The Minimalist
Fewest words that still work. Clean punctuation, short paragraphs.
The Orator
Dashes, questions, emphasis. Writes for the ear.
Works in ChatGPT and Claude
Type @Bluefeather in a chat and your assistant uses the same analyzer and voice profile as this site.
I am writing to inform you that, after careful consideration, we have decided to postpone the launch until next week in order to ensure all outstanding issues are fully resolved.
Quick one: we're pushing the launch a week. A few bugs are still open and I'd rather fix them than ship with them. More on Monday.Shorter sentences, contractions, no em dash. Same facts.