WritingClaude

Build your own Claude humanizer skill

Hey, it's Alex. These are the prompts that teach Claude to stop writing like AI, saved as a skill it uses every time. I've also added a new step: teaching it your own voice, so it doesn't just sound "not AI", it sounds like you.

btw, I'm making a free Claude Code course for complete beginners. If you're keen, join the waitlist (only if you want to). The waitlist gets it first.

Before you start

Use Claude.ai (desktop or web) with Skills turned on: Settings → Capabilities → Skills.
Do the prompts in the same new chat, one after another.

Prompt 1: Tell Claude the goal

Going forward, all writing you produce for me should read as if it were written by a skilled human writer, with none of the recognisable patterns of AI-generated text.

The standard to follow:
- Clear, precise language over elaborate or inflated vocabulary
- Varied sentence length and structure, with a natural rhythm
- Concrete details and specific examples in place of broad claims
- A confident, measured tone: no hype, filler or forced enthusiasm

Before we begin, confirm that you understand this standard and summarise, in three bullet points, the characteristics that most often make writing read as AI-generated.

Prompt 2: Give it the Wikipedia list

Wikipedia keeps a list of the habits that give away AI writing:
https://en.wikipedia.org/wiki/Wikipedia:Signs_of_AI_writing

Read the whole page. Then make me a checklist of every pattern on it, grouped by type (word choice, sentence structure, tone, formatting).

For each pattern, give:
1. a one-line description
2. a short "AI" example
3. how a human would write the same thing

Be thorough. I want every pattern covered, including things like "it's not just X, it's Y", lists of three, too many em dashes, words like "delve" and "testament", and fake-deep endings.

Prompt 3: Teach it your voice

The Wikipedia list tells Claude what not to do. Your own writing tells it what to do. Put the two together and the result sounds like you.

Grab 3 to 5 things you've written yourself: captions, emails, messages, a post. Ideally ones you wrote without AI.

Here are some things I've written myself:

[paste 3 to 5 examples]

Study how I write and make me a voice guide. Include:
- how long my sentences usually are, and how I start them
- words and phrases I use a lot
- words I never use
- how casual or formal I am, and how I use humour
- how I open and end things
- 5 short before/after examples: an AI version, then the same line in my voice

Only use what's in my examples. Don't invent habits I don't have.

Prompt 4: Save it as a skill

Now turn everything from this chat into a skill called "humanizer" and save it so you can use it in every future chat.

The skill should:
- trigger whenever I ask you to write, rewrite or edit anything (posts, emails, captions, scripts, messages), or when I say "humanize this"
- include the full checklist from the Wikipedia list
- include my voice guide
- write the draft first, then check it against every pattern and rewrite any line that matches
- then check it against my voice guide and rewrite anything that doesn't sound like me
- keep my meaning, facts and tone. Only change how it's written
- at the end, give me the final text only, with no notes unless I ask for them

Create the skill file, then tell me how to add it to my Skills.

How to use it

Open any new chat and say:

Use my humanizer on this: [paste your text]

Or just ask Claude to write something. The skill kicks in on its own.