Humanizer: Remove AI-Generated Writing from Your Text

Introduction

Humanizer is an innovative skill for both Claude Code and OpenCode, specifically engineered to eliminate the tell-tale signs of AI-generated writing from your text. Its primary goal is to make your content sound more natural, authentic, and human. Whether you're refining drafts or ensuring your communications are genuinely engaging, Humanizer helps bridge the gap between AI efficiency and human expressiveness.

Installation

Getting Humanizer set up is straightforward for both Claude Code and OpenCode users.

For Claude Code

Clone the repository directly into Claude Code's skills directory:

mkdir -p ~/.claude/skills
git clone https://github.com/blader/humanizer.git ~/.claude/skills/humanizer

Alternatively, if you already have the repository cloned, you can copy the skill file manually:

mkdir -p ~/.claude/skills/humanizer
cp SKILL.md ~/.claude/skills/humanizer/

For OpenCode

Clone the repository directly into OpenCode's skills directory:

mkdir -p ~/.config/opencode/skills
git clone https://github.com/blader/humanizer.git ~/.config/opencode/skills/humanizer

Or copy the skill file manually if you already have this repo cloned:

mkdir -p ~/.config/opencode/skills/humanizer
cp SKILL.md ~/.config/opencode/skills/humanizer/

Note: OpenCode is compatible with Claude Code's skill directory. A single clone into ~/.claude/skills/humanizer/ is sufficient if you use both tools.

Examples

Using Humanizer is simple, offering both direct commands and voice calibration for personalized results.

Basic Usage

To humanize text in Claude Code or OpenCode, use the /humanizer command followed by your text:

/humanizer

[paste your text here]

You can also ask the model to humanize text directly:

Please humanize this text: [your text]

Voice Calibration

For a truly personalized touch, Humanizer can adapt to your unique writing style. Provide a sample of your own writing to calibrate its output:

/humanizer

Here's a sample of my writing for voice matching:
[paste 2-3 paragraphs of your own writing]

Now humanize this text:
[paste AI text to humanize]

This feature analyzes your sentence rhythm, word choices, and stylistic quirks, applying them to the rewritten text instead of producing generic output.

Why Use Humanizer

In an era where AI-generated content is prevalent, ensuring your writing maintains a human touch is crucial for authenticity and engagement. Humanizer addresses this by systematically removing common "AI-isms" based on extensive research.

The skill's methodology is rooted in Wikipedia's "Signs of AI writing" guide, maintained by WikiProject AI Cleanup. This comprehensive guide identifies over 30 distinct patterns observed in thousands of instances of AI-generated text. Humanizer detects and corrects these patterns, ranging from "significance inflation" and "promotional language" to "AI vocabulary" and "chatbot artifacts."

A key insight from Wikipedia highlights that "LLMs use statistical algorithms to guess what should come next. The result tends toward the most statistically likely result that applies to the widest variety of cases." Humanizer counteracts this by introducing natural variation and specificity. The tool even includes a final audit pass and a second rewrite to catch any lingering AI characteristics.

Consider this example of Humanizer's impact:

Before (AI-sounding snippet):

"AI-assisted coding serves as an enduring testament to the transformative potential of large language models, marking a pivotal moment in the evolution of software development. In today's rapidly evolving technological landscape, these groundbreaking tools, nestled at the intersection of research and practice, are reshaping how engineers ideate, iterate, and deliver, underscoring their vital role in modern workflows."

After (Humanized snippet):

"AI coding assistants can speed up the boring parts of the job. They're great at boilerplate: config files and the little glue code you don't want to write. They can also help you sketch a test, but you still have to read it."

This transformation demonstrates how Humanizer shifts text from generic, verbose, and formulaic AI output to concise, direct, and relatable human prose.

Links

• Humanizer GitHub Repository
• Wikipedia: Signs of AI writing
• Wikipedia: WikiProject AI Cleanup