Style, Voice & Self-Editing with AI
The thing that separates writers people remember from writers nobody finishes is voice — that subtle quality of "this could only have been written by this person." Default AI prose is voiceless by design. It is smooth, slightly upbeat, never quite wrong, and totally forgettable. The whole point of this lesson is to teach you how to bend AI output into something that sounds unmistakably like you.
By the end you will have built your own personal style guide, a "voice prompt" you reuse forever, and a five-pass editing checklist that turns generic drafts into prose with personality.
What You'll Learn
- What "voice" actually means and how to describe yours in writing
- How to build a personal style guide that makes every AI prompt sharper
- The five-pass editing checklist for self-editing AI drafts
- Tested prompts that fight AI's default upbeat-corporate tone
What Is "Voice," Really?
Voice is the sum of:
- Sentence length and rhythm. Do you write short, punchy sentences? Long, winding ones? A mix?
- Vocabulary range. Plain Anglo-Saxon words, or do you reach for the Latinate ones?
- Use of contractions. "Don't" or "do not"? Casual or formal default?
- Openers. Do your sentences start with subjects, gerunds, or with "Look,"-style hooks?
- Quirks. Do you use parentheses (often)? Em-dashes — like this — or never? One-line paragraphs for emphasis?
- What you refuse to say. Banned words and clichés are part of voice, too.
- Topics you obsess over. A consistent author returns to the same handful of obsessions.
Voice is not the topic. It is how you handle every topic.
Drill 1: Describe Your Voice in 8 Bullets
Open Claude in your "My Writing" project. Paste 500-1000 words of your strongest writing — a blog post, an email you nailed, a piece of coursework you were proud of. Then run:
Below is a sample of my writing. In 8 specific bullets, describe my voice — sentence length and rhythm, vocabulary range, use of contractions, common sentence openers, structural quirks, words I would and wouldn't use, recurring obsessions, and overall tone. Be specific. Quote example phrases. Then write a 100-word "voice prompt" I can paste at the top of any future request to get AI to mimic this voice.
SAMPLE: [paste]
Save the 8 bullets and the 100-word voice prompt. They are the single most valuable artifact you'll create in this course.
Drill 2: Build a Personal Style Guide
A style guide is a one-page document of "rules I follow." Use Claude to generate the first draft:
Based on the voice description above, write a one-page personal style guide for me. Format it as: "Voice rules" (5-7 short rules), "Banned words and clichés" (list 15-20 specific words/phrases I should never use), "Preferred constructions" (5 patterns I like — sentence starts, transitions, etc.), "Length defaults" (typical sentence and paragraph lengths). Make it usable as a system prompt I can paste into ChatGPT, Claude, or Gemini.
Examples of useful banned-word lists:
- AI-tells: "delve," "leverage," "unlock," "empower," "powerful," "seamlessly," "robust," "in today's fast-paced world"
- Empty intensifiers: "very," "really," "truly," "absolutely"
- Clichés: "at the end of the day," "moving forward," "thought leader"
- Marketing words: "synergy," "best-in-class," "game-changer," "disrupt"
This list alone will improve every AI draft you produce.
Drill 3: The "Voice Prompt" Habit
From now on, every time you ask an AI for a draft of more than 200 words, paste your voice prompt at the top:
[Your 100-word voice description from Drill 1]
[Banned words from your style guide]
Now write [the actual request].
The output will be 30-50% closer to your voice on the first try. Yes, it adds 2 seconds to each prompt. Worth it.
If you set up Claude Projects, paste this voice prompt + style guide into the project knowledge once and skip the paste step entirely.
The Five-Pass Editing Checklist
After AI gives you a draft, run these five passes. Each takes 90 seconds.
Pass 1: Cut
Read the draft. Mark the weakest paragraph. Delete it. Almost every AI draft is 15% too long. Cuts feel painful and read better.
Pass 2: Specifics
Replace every vague claim with a concrete one. "Many people struggle with X" → "On a Tuesday in February, my friend Sam called me crying about X." Look for: numbers, names, dates, places, sensory details. Each addition makes the writing 10x more memorable.
Pass 3: Voice
Read out loud. Any sentence that sounds like a corporate webinar transcript, rewrite the way you would actually say it to a friend over coffee. AI's default voice is "warm corporate"; your goal is to break that.
Pass 4: Rhythm
Vary sentence length. If three sentences in a row are all 14-22 words long, break the pattern with a four-word sentence. Like this. Suddenly the rhythm pops.
Pass 5: Endings
Read the last line. Is it memorable? AI tends to end with safe wraps ("In conclusion, AI tools are powerful when used wisely"). Replace with something specific, vivid, or callback-to-the-hook. The last line is the line readers remember.
Tested Prompts That Beat Default AI Prose
The Anti-Cliché Drafter
Write [piece] avoiding ALL of these AI-tells: ["delve," "leverage," "unlock," "empower," "powerful," "seamlessly," "robust," "at the end of the day," "moving forward," "thought leader," "in today's fast-paced world," "transformative," "groundbreaking," "harness"]. If you find yourself reaching for any of them, choose plainer language.
The Specific-Numbers Forcer
Every paragraph in your draft must contain at least one of: a specific number, a specific name (person/brand/place), a specific date, or a specific quoted phrase. If a paragraph would not naturally contain one, ask me a question to surface one before writing it.
The Anti-Wrap Closer
The last sentence of every section must NOT be a summary of the section. Make it: a question, a vivid concrete image, a one-line provocation, or a callback to an earlier moment. No "In conclusion," "Overall," or "As we've seen."
The Plain-English Filter
Rewrite the draft below using only words a 14-year-old would understand. Replace every Latinate word with its Anglo-Saxon cousin where possible (utilize → use, demonstrate → show, comprehend → get, facilitate → help). Keep meaning. Show me the rewrite, then list the 5 biggest changes.
When AI Cannot Do What You Need
A few things only you can supply:
- A point of view. AI defaults to "balanced." If your piece needs a strong take, write the take yourself.
- A specific story from your life. AI cannot remember last Tuesday at 3:14pm when your code finally compiled.
- An accurate emotional register. AI does "warm" well. It does grief, anger, awkwardness, and dry irony badly. For those, write yourself.
- The willingness to be wrong. Default AI hedges. Distinctive writing makes a claim and stands behind it.
The most common reason AI writing feels bland is that the writer kept everything safe. Don't.
A Quick Practice Exercise
Run Drill 1 right now with a 500-word sample of your strongest writing. Save the voice prompt. Add it to your Claude project. Then re-run an earlier exercise from this course (the LinkedIn post, the cover letter, the blog draft) with the voice prompt at the top. Notice the difference.
Key Takeaways
- Voice is the sum of sentence rhythm, vocabulary, contractions, openers, quirks, banned words, and recurring obsessions — not the topic.
- Build a 100-word "voice prompt" once and reuse it forever. Saved into Claude Projects, it sharpens every draft you make.
- A personal style guide with banned words ('delve,' 'leverage,' 'unlock,' clichés) instantly improves AI output.
- Run the five-pass editing checklist on every AI draft: cut, specifics, voice, rhythm, endings. 90 seconds per pass.
- AI cannot supply your point of view, your lived stories, your sharp emotional register, or your willingness to be wrong. Those are still your job.