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How to use Humanizer: what you can do with it

What is Humanizer? Humanizer is an agent skill that rewrites AI-written text so it reads like a person wrote it, without changing what it says. It is built on Wikipedia's Signs of AI writing guide and rewrites 26 patterns, such as 'not X but Y' lines, one-line closers and staged run-ups. It installs into Claude Code, Codex and other agents.

How do I use it? In Claude Code run /plugin marketplace add blader/humanizer, then /plugin install humanizer@humanizer; then start a session and type /humanizer, then paste your draft below it; read the rewrite next to the original and check that every fact and number survived. Full steps below.

2 people shared what they built with Humanizer. See what people are building

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What do you want to do?

3 use cases

What people are building with Humanizer

  • Hands-onDEV

    Added Humanizer to Claude in two minutes, ran an old AI-drafted blog post through it and now uses it daily

    The author uploaded the Humanizer skill to Claude, tested it on one of their AI-drafted posts and kept using it every day. The part they had not seen elsewhere is its second pass, where it asks what still sounds AI-generated and fixes that too.

    Humanizer on GitHubTry it: Rewrite an AI-drafted announcement so it reads like a person wrote it

    By Vasu Ghanta (@vasughanta09) on DEV

    View original post on DEV

  • Benchmarkthe web

    Ran 10 AI-written posts through Humanizer: detector scores fell while content went missing

    Detector scores fell to an average of 8.5 percent, nine of ten under 20 percent and four at zero. Side by side, seven rewrites were shorter than the originals and six lost substantive content, one an entire argument, and in one case the rewrite added an invented historical detail.

    Humanizer on GitHub

    By Ankit Vora (ankitvora2.substack.com) on the web

    View original post on the web

Real builds shared on X, Hacker News, Reddit, DEV and GitHub, summed up by Deduped from each post and its links; each card links to the original post. See what people are building with other repos

Quick start with Humanizer

  1. Check you have what it needs: Claude Code, Codex, Claude.ai or another agent that supports skills; npx for the skills CLI install; Text to rewrite, and optionally two or three paragraphs of your own writing for voice matching.
  2. Open blader/humanizer on GitHub and read the README and license.
  3. In Claude Code run /plugin marketplace add blader/humanizer, then /plugin install humanizer@humanizer
  4. Start a session and type /humanizer, then paste your draft below it
  5. Read the rewrite next to the original and check that every fact and number survived
  6. Ask for another pass on any paragraph that still opens with a run-up such as 'Here's the thing'

These steps come from our top use case, Rewrite an AI-drafted announcement so it reads like a person wrote it, which also has a copy-paste agent prompt.

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About this repo

  • Who it is forWriters, marketers and developers who draft with AI and want the result to read as plain human prose for human readers.
  • Why it is hot+2,799 stars this week, 63k total, talked about in 3 AI sources we track
  • LanguagePython
  • Sourcegithub.com/blader/humanizer ยท Back to Hot repos

Requirements

  • Claude Code, Codex, Claude.ai or another agent that supports skills
  • npx for the skills CLI install
  • Text to rewrite, and optionally two or three paragraphs of your own writing for voice matching

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Questions about Humanizer

What is Humanizer?

Humanizer is an agent skill that rewrites AI-written text so it reads like a person wrote it, without changing what it says. It is built on Wikipedia's Signs of AI writing guide and rewrites 26 patterns, such as 'not X but Y' lines, one-line closers and staged run-ups. It installs into Claude Code, Codex and other agents. It is an open-source project on GitHub: https://github.com/blader/humanizer.

How do I use Humanizer?

In Claude Code run /plugin marketplace add blader/humanizer, then /plugin install humanizer@humanizer; then start a session and type /humanizer, then paste your draft below it; read the rewrite next to the original and check that every fact and number survived. The use cases on this page give the full steps and a copy-paste agent prompt for each job.

Who is Humanizer for?

Writers, marketers and developers who draft with AI and want the result to read as plain human prose for human readers.

What can I do with Humanizer?

3 use cases so far, for example: Rewrite an AI-drafted announcement so it reads like a person wrote it; Make AI text sound like your own writing with voice matching; Clean up AI-written prose in your repo docs with Codex. Each has steps and a copy-paste agent prompt.

What do I need to run Humanizer?

Claude Code, Codex, Claude.ai or another agent that supports skills; npx for the skills CLI install; Text to rewrite, and optionally two or three paragraphs of your own writing for voice matching.

What are alternatives to Humanizer?

Other hot AI repos in Content: Voice Studio, Impeccable, Taste Skill, Unslop, Kokoro.

Is Humanizer safe to run?

Deduped does not own, audit or vouch for it. Read the README and license, run it on your own systems first and review every command before you run it.