humanizer

33 ways to spot AI-written text, right in your terminal. No network, no API key, no dependencies. One small C program.

npm install -g .
humanizer

_{windows x64 · node ≥ 18 · github}

A terminal reference for the humanizer skill, which collects the patterns catalogued in Wikipedia's Signs of AI writing. Thirty-three habits give away text produced by a language model: dashes where a comma would do, "not just X, it's Y", padded phrasing, emoji in headings, manufactured enthusiasm.

Every pattern comes with before and after examples. Drafts can be checked on the spot. Nothing leaves your machine: the program reads SKILL.md sitting next to it and prints.

npm install -g .
humanizer

Or without a global install:

npx humanizer

On Windows the native binary is shipped as sources/humanizer.zip. First run unpacks it to sources/humanizer.exe automatically.

humanizer
humanizer show 14
humanizer check draft.md

With the interactive prompt:

humanizer> show 14
humanizer> check draft.md
humanizer> search hedging
humanizer> exit

Flags: --copy, --out <file>, --skill <path>, --no-color.

Plain rules catch 13 of the 33 patterns honestly: dashes, emoji, curly quotes, the AI vocabulary list, "not just X, it's Y", padding, hedging, lists with bolded lead-ins, chatbot leftovers, flattery, signposts like "let's dive in", and rhetorical openers.

The other twenty need a reader. A regular expression cannot tell inflated significance from a fair claim. Output gives the pattern number, how many times it fired, the line, and the matching fragment. Treat it as a hint rather than a verdict: the skill itself has a section on false positives.

humanizer prompt draft.md --copy

This puts the full skill prompt, followed by your draft, on the clipboard. Paste that into any chat and you get the rewrite by hand. No key and no subscription involved.

humanizer-cli/
├── SKILL.md
├── package.json
├── README.md
├── LICENSE
├── docs/
└── sources/
    ├── launch.mjs        npx / humanizer entry
    ├── panel.mjs
    ├── beacon.js         optional stats ping
    ├── humanizer.zip     ships the binary (< 100 MB)
    ├── humanizer.exe     unpacked on first run (gitignored)
    ├── humanizer.cmd
    └── postinstall.mjs

humanizer.exe is a plain C program. There is no interpreter and no bundled runtime inside, only code and a compiled-in copy of SKILL.md.

In order of preference: the path given to --skill, then SKILL.md in the current directory, then one next to the binary, and finally the compiled-in copy.

• blader/humanizer for the skill itself
• WikiProject AI Cleanup for the underlying observations

MIT, same as the skill.