Paste this into Claude Code. It installs the free humanizer skill (github.com/blader/humanizer) if you don't have it, asks you for 10 real examples of your writing, then builds a voice file so it writes like you. Don't clean up your examples, the typos are the point.
I want a writing skill that knows how I personally write, so when I ask it to write
something it sounds like me instead of like a generic AI.
Set this up for me. Ask me things one at a time and wait for my answer. Do not assume.
STEP 0 - INSTALL THE SKILL IF IT IS NOT THERE
Check whether the humanizer skill is already on my computer. Look in
~/.claude/skills/humanizer and ~/.agents/skills/humanizer.
If it is not there, install it by running: npx skills add blader/humanizer --global
Then confirm it worked before moving on. It is a free, open source writing skill that
strips out the patterns that give AI writing away.
If it is already there, say so and carry on.
STEP 1 - ASK ME WHAT FORMAT
Before you touch anything, ask me this and stop:
"What kind of writing do you want me to learn first? For example: emails, essays or
blog posts, LinkedIn posts, X posts, video scripts, client proposals, or something
else. Pick one. You can add more later."
Wait for my answer. Whatever I say becomes THE FORMAT for the rest of this.
STEP 2 - FIND THE SKILL
Find where the humanizer skill actually lives on my computer. Look in
~/.claude/skills/humanizer and ~/.agents/skills/humanizer. If one of them is a
shortcut pointing at the other, edit the real folder, not the shortcut.
Read the whole SKILL.md before changing anything. Pay attention to the section called
"Voice Calibration", because what we are building plugs straight into it.
Then save a copy of SKILL.md called SKILL-original.md in the same folder, so I can undo
all of this later.
STEP 3 - ASK ME FOR 10 REAL EXAMPLES
Ask me for 10 real examples of THE FORMAT that I wrote myself, and stop.
If THE FORMAT is emails and you can reach my email account, offer to search my sent
mail and pull them yourself instead. If I say yes, read only. Never send, draft,
delete, label, or change anything in my inbox.
Otherwise I will paste them in.
Tell me what makes a good example, in your own words:
- Something I actually typed, at least a few sentences. Not one-line replies.
- Nothing automated, nothing I just forwarded, nothing written by someone else.
- A spread across the different ways I write. Formal and casual, good days and rushed
days.
If I only give you 6, use 6 and tell me the real number. Never invent examples to fill
the gap. A made-up example teaches it a made-up voice.
STEP 4 - BUILD THE REFERENCE FILE
Make a folder called "references" inside the humanizer skill folder if it is not there
already. Inside it, create a file named after the format, like email-voice.md or
linkedin-voice.md.
TOP HALF: instructions describing how I write, specific enough that you could copy me
from them alone. Every single claim needs a short quote from my real examples sitting
underneath it as proof. If you cannot back a claim with a quote, delete the claim.
Cover whichever of these apply to THE FORMAT:
- How I open, using my actual opening words
- How I finish or sign off, word for word
- How long the whole thing usually runs, and how long my paragraphs are
- My sentence rhythm. Do I vary it, do I run short, do I ramble
- My tone. Blunt, warm, funny, dry, formal. Prove each one with a quoted line
- Whether I use contractions, proper capital letters, em dashes, exclamation marks,
ellipses, emoji
- Words and phrases I clearly reuse
- Things I never do, like never opening with "I hope this email finds you well"
- How I ask for things, chase people up, and say no
BOTTOM HALF: a section called "Real examples" with all of them, numbered, each with a
one-line note saying what it was, like "3 - saying no to a supplier's quote".
Copy them exactly as I wrote them. Do not fix my typos. Do not tidy my punctuation. Do
not improve my grammar. The typos are the point. They are what makes it sound like me
and not like a machine imitating me.
STEP 5 - WIRE IT UP
Now edit SKILL.md so it uses that file.
Look for a section called "Format Routing" near the top.
If it is not there, create it, just after the task list and before "Voice Calibration".
It should say: before writing anything, work out what kind of writing this is, and if
it matches a row in the table below, read that reference file first and match the
habits it documents. Make it clear that a stored reference counts as a real writing
sample, so it beats the skill's own style rules wherever they disagree, including the
rule against em dashes in section 14. Copying me matters more than scrubbing AI tells.
Say that it applies whether I ask you to write the thing, paste something and ask for
a reply, or ask you to clean up something that is obviously that format.
Then add the table, with one row for THE FORMAT pointing at the file you just made.
If the "Format Routing" section already exists, leave it alone and just add one new row
to the table.
Either way, end the section with a line saying that to add another format later, drop a
new references/<format>-voice.md file in and add one row here, and nothing else needs
to change.
Last thing: tie it into the existing "Voice Calibration" section so the two agree
instead of contradicting each other. Keep the edit small and match the style and
formatting already used in SKILL.md. Do not rewrite parts that already work.
STEP 6 - TELL ME WHAT YOU FOUND
When you are done, tell me:
- How many examples you actually used
- The most distinctive things about how I write, in plain English
- Exactly what you added to SKILL.md
- Anything that surprised you
You have to say the word humanizer, it doesn't fire on its own.
Write something new: "use the humanizer skill to write an email to my accountant asking for last year's tax return."
Fix something you wrote: paste it in and say "run humanizer on this."
Add another format later: paste the same prompt again and pick a different format.
Undo it: ask Claude to copy SKILL-original.md back over SKILL.md and delete the references folder.
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Want AI systems built for your business? Just DM me on Instagram (@hugomxnning) or email [email protected].
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