Humanizer

The goal

Take prose that sounds like AI wrote it and turn it into prose that sounds like a person wrote it. Not with a banned-word filter or a before-and-after template, but by understanding deeply what human writing actually feels like, so you catch the artificialness anywhere it shows up. Even in cases nobody specifically described to you.

Read the whole thing before you start. Let it sit. If you skim for highlights you'll end up running a checklist, and a checklist is what this skill exists to replace.

The one idea everything else flows from

Human writing trusts the reader. AI writing doesn't.

That's the whole thing. Every other pattern, every padded sentence, every rule-of-three cadence, every closing recap, all of it is a symptom of the same root cause. The writer (or the model) didn't trust the reader to follow along, so they over-explained, padded, hedged, restructured, etc... The reader could feel it. They got bored. They left.

If you internalize this one idea, the rest of the skill makes sense by itself. You don't need to memorize patterns because you can derive them.

A check that keeps you honest: every time you're about to edit, ask, "Am I trusting the reader, or babysitting them?" If the answer is babysitting, cut.

Another way of seeing the same idea. AI writing wears a suit and tie even when the conversation is at a kitchen table. Human writing matches the room. If the prose in front of you feels like it's wearing a suit at a backyard barbecue, that's the tell.

What human writing actually feels like

Before you can fix AI-ness, you have to know what you're aiming for.

Rhythm. Sentences are different lengths. Some short. Some longer, looping back on themselves. The variation isn't decoration, it's how reading feels alive. "The product is fast. It is reliable. It is innovative." reads dead. "The product is fast. Genuinely fast, the kind of fast you only notice once you go back to the old one." has a pulse.

Flow. One sentence leans into the next. Think about how a friend tells you about a car breakdown versus how a manual does. The friend moves. The manual plants its feet between every sentence and waits.

Space. Sets something up and trusts you to land. The most powerful sentence is often the one not written. AI is allergic to that space; it wants to close every loop. Don't.

Voice. Somebody is there. "This is impressive" is neutral. "This is impressive in a way that kind of unsettles me" has a person behind it.

Specificity. "3am" instead of "late at night." "The four people who actually open this every day" instead of "many users." "Since 2019" instead of "for a long time." Specifics cost something to write; that's what earns them trust.

Plain English. Use the everyday word, not the fancy one. "Use" instead of "utilize." "Help" instead of "facilitate." "Show" instead of "demonstrate." "Try" instead of "endeavor." Aim for the kind of English everyone understands, not the kind of English that wants to impress a committee. Fancier vocabulary feels smart but it slows the reader down, and it signals AI almost instantly. Plain words are not lower quality, they are higher trust. Write like the smartest person you know talking to a friend, not like an academic paper.

Mess. A half-thought. A tangent that earns its place. A sentence that ends somewhere you didn't expect. Don't sand off every edge that survived your first draft.

Stake. Something the writer cares about. They want you to see what they see. AI reports, balances, moves on. Real writing has a temperature.

Opens in a moment. Human writing tends to drop you into a specific time, place, or experience. "Last winter the pipes burst at 3am, and..." "The first time I tried this..." "Coffee starts with a goat." "On the train back from Berlin..." Concrete location before any claim. AI defaults to topic sentences or grand frames ("In a world where...," "At its core..."). The opener sets the temperature for the whole piece.

A little funny when it fits. Not joke-funny, but with angles. A turn of phrase that catches you. A moment that almost makes the reader smile because they discovered something.

How to spot AI-ness when you see it

You're not running a regex. You're reading like a person and listening for the moment where the prose stops sounding like a mind and starts sounding like an output. When that hits, slow down and ask what made it land that way.

What follows is a starter set of moves grouped by the shape of failure underneath them. The same shape shows up in a hundred costumes; your job is to recognize the shape, not the surface.

When the writer doesn't trust the reader

The over-explainer. Says the conclusion, then says what it means, then says why it matters. Fix: say it once and let it land. Before: "Our app is fast. By fast, we mean it loads quickly. This matters because users don't like waiting." After: "Our app loads fast. Nobody likes waiting."

The padder. Phrases that fill space without carrying meaning. "It's worth noting that," "additionally," "furthermore," "moreover," etc... Fix: delete and the sentence stands harder. Substitutions: "In order to" becomes "To." "Due to the fact that" becomes "Because." "At this point in time" becomes "Now." "Has the ability to" becomes "Can." "It is important to note that" usually just disappears, etc...

The closing recap. Section ends with a sentence summarizing what the section just said. Fix: trust the reader. Cut it.

The fragmented header. Heading followed by a one-line restatement of the heading before the real content begins. Fix: let the heading do its job. Start with the actual content.

The excessive hedge. "It could potentially possibly be argued that the policy might have some effect." Fix: one qualifier maximum. "The policy may affect outcomes." Sometimes drop the hedge entirely.

The knowledge-cutoff disclaimer. "While specific details are limited..." "As of my last update." Chatbot artifacts in the page. Fix: if you have the fact, state it. If you don't, write a sentence that doesn't need to mention what you don't have.

The fake balance. "On one hand, on the other hand," with no actual position. Performance instead of substance. Fix: have an opinion, or admit you're genuinely unsure.

When the rhythm gives it away

The rule of three. Three benefits, three considerations, three reasons, etc... Fix: list two, or four, or one. Before: "fast, flexible, and reliable" is the giveaway. After: "fast, and weirdly flexible once you stop fighting it."

The stop-start rhythm. Every sentence is its own island. Fix: rebuild the connections. Before: "The team launched the feature. It included three improvements. Users were excited." After: "The team launched the feature with three improvements, and users were on it within an hour."

The em-dash habit. AI uses "—" for everything. Fix: very rare. When you do use one, write a plain hyphen ("-"). Most of the time a comma, period, or restructure works better. A page should almost never need more than one or two.

The synonym cycle. Calling the same character "the protagonist," "the main character," "the central figure," "the hero" in four sentences. Fix: repeat the word. Repetition is less distracting than the synonym carousel.

The forced takeaway. Paragraph closes with a moralizing line that lifts an observation into a Life Lesson. Fix: let the observation be the observation. If a real lesson exists, the reader will arrive at it.

When abstraction replaces substance

The abstract noun parade. "Intricate landscape," "evolving tapestry," "pivotal moment," "rich heritage," etc... Fix: name the thing. If you can't, the sentence isn't ready.

The promotional voice. "Stunning," "vibrant," "breathtaking," "must-visit," etc... Brochure prose. Fix: describe instead of selling. Before: "Stunning beaches