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Humanize (Strip AI Writing Tells)

Rewrites AI-sounding text into human-sounding prose using countable rules for sentence rhythm, vocabulary, and punctuation.

Content & WritingIntermediate49149AI score 10/10Last updated: Sep 22, 2026

What it does

  • Fires automatically on requests like "humanize this", "make it less AI-sounding", or when you ask why a draft reads robotic and generic.
  • Rewrites against the nine signals detectors actually measure: perplexity, burstiness, hedge density, lexical repetition, structural markers, specificity, POS density, punctuation fingerprint, and the RLHF "helpful assistant" voice.
  • Enforces seven hard rules: em-dash budget (max one per 300 words, zero under 300), no semicolons, straight quotes only, a banned-vocabulary list (delve, leverage, robust, furthermore...), no "not just X, it's Y" negation pivots, output-shape discipline (no preamble or changelog), and a measured sentence-length spread.
  • Runs a literal pre-output gate where every tell is counted and quoted from the actual draft, plus a Signal I audit pass that catches rhetorical scaffolding (aphorism closers, anaphora, tricolons, chiasmus, either/or binaries).
  • Optional writer-profile distillation: give it your past writing and it extracts 5-10 style hypotheses and matches your register instead of defaulting to terse prose.

Who it's for

  • Bloggers, newsletter writers, and LinkedIn posters who draft with AI and want their own voice back.
  • Marketing and PR teams stripping brochure language ("nestled in the heart of", "vibrant", "stands as a testament to") from launch copy and about pages.
  • Anyone cleaning chat artifacts ("Great question!", "I hope this helps") out of documents before publishing.

Examples

  1. Paste an AI-drafted launch post and say "humanize this" → you get back prose with em dashes and semicolons removed, a mix of sub-5-word fragments and 25-plus-word sentences, and concrete numbers replacing vague claims.
  2. Supply three of your older essays and ask for a voice match → it profiles your sentence variance, verbal tics, and transition style, then rewrites in that register.
  3. Feed it text with zero facts, names, or dates → it rewrites without inventing anything and appends a short note telling you which specifics to add so the specificity signal stops flagging it.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/harshaneel/humanize/HEAD/plugins/humanize/skills/humanize/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the plugins/humanize/skills/humanize folder from the GitHub repo harshaneel/humanize into my ~/.claude/skills/harshaneel-humanize/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/harshaneel/humanize.git /tmp/humanize && mkdir -p ~/.claude/skills && cp -r /tmp/humanize/plugins/humanize/skills/humanize ~/.claude/skills/

This is a third-party skill. Check the source repository before installing.

  1. Open a terminal (Terminal on macOS/Linux, Git Bash or WSL on Windows).
  2. Clone the repository: git clone https://github.com/harshaneel/humanize.git
  3. Create the skills directory if needed: mkdir -p ~/.claude/skills
  4. Copy the skill in: cp -r humanize/plugins/humanize/skills/humanize ~/.claude/skills/
  5. Confirm the references/ folder came along (it holds the detection-research background).
  6. Restart Claude Code, paste any draft, and type "humanize this" to trigger the skill.