humanizer

A writing editor that detects 55 common signs of AI-generated prose and can rewrite text in five different human voices.

In plain words
What is it for?
Use it to inspect or rewrite blog posts, READMEs, API documentation, tutorials, business messages, social posts, and internal reviews.
Why use it?
It helps when writing sounds generic, repetitive, or like a chatbot instead of a particular person.

Skill for Claude CodeCodex

Part of the humanizer plugin — 1 skill shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/aboudjem/humanizer-skill/humanizer
Any agent
npx skills add Aboudjem/humanizer-skill --skill humanizer
Clone the repo
git clone --depth 1 https://github.com/Aboudjem/humanizer-skill

Made for: Claude Code, Codex.

Or install humanizer, the plugin that ships this one along with the rest of its 1 skill.

Per session 139 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,364 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00139 $0.09364
Opus 5 $0.00069 $0.04682
Sonnet 5 $0.00028 $0.01873
Haiku 4.5 $0.00014 $0.00936

Measured 3d ago against content hash 12b5f6496d1f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

humanizer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/humanizer/SKILL.md · 444 lines

How it starts

The opening of the file, as written. The whole thing — 444 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Humanizer: Make Text Sound Like a Human Wrote It

Take text that smells like a chatbot wrote it and rewrite it as a specific, opinionated human. Detects 55 AI writing patterns, scores them 0-100, applies a chosen voice profile, and varies sentence-length burstiness so the result reads as written by a person.

Quick reference

Modes

Mode What it does
detect Scan text, report patterns, output a 0-100 AI-tell score. No rewrite.
rewrite Full transform with voice injection. Default mode.
edit In-place file editing using the Edit tool. Minimal targeted changes.

Voices

Voice Personality Best for
casual Contractions, first person, fragments Blog posts, social media
professional Selective contractions, dry wit Business comms, reports
technical Precise vocabulary, code-like clarity API docs, READMEs
warm "We" language, empathy, short paragraphs Tutorials, onboarding
blunt Shortest sentences, no hedging, active voice Internal comms, reviews

Pattern catalog (55 total)

Category Count IDs
Content 8 P1 to P8
Language & Style 10 P9 to P18
Communication 3 P19 to P21
Filler & Hedging 9 P22 to P30
Emerging 13 P31 to P43
Craft & Forensic 12 P44 to P55

Flags

Flag Effect
--score Prepend a [Score: NN/100] AI-tell density header
--iterate N Loop detect, rewrite, detect until convergence (max N=3)
--aggressive Heavier rewrite, shorter sentences, more personality
--purpose Layer essay, email, marketing, technical, or general rules
--openings N Generate N maximally-different opening hooks, surface the strongest
--ignore-code Mask fenced code blocks before detect/score (do not flag inside them)
--ignore-quotes Mask blockquotes before detect/score (do not rewrite quoted text)

Read the full file on GitHub · 444 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 444 lines · 139 tokens per session scan A 12b5f6496d1f

Subscribe to this mod's changes

humanizer is a skill published in the GitHub repository Aboudjem/humanizer-skill (206 stars, last pushed 6d ago), licensed MIT. It adds 139 tokens to every session and 9,364 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

voiceprint

Use when writing an article, newsletter, blog post or long social post that must genuinely be the user's own writing. Triggers on "voiceprint", "write this in my voice", "turn my recording into an article", "cut my transcript down", "make this actually mine", "write from my video". Turns the user's own spoken words…

charlie947/voiceprint · 83 tokens

patina

Detect and rewrite AI writing patterns in Korean, English, Chinese, and Japanese text so it reads as if a human wrote it. Meaning-preservation (MPS) verified.

devswha/patina · 38 tokens

clarity

Draft, rewrite, or review reader-facing prose so it is specific, useful, and recognizably the author's without inventing facts or performing humanness. Use for essays, articles, newsletters, documentation, talks, launch copy, and other important prose that feels generic, hollow, or AI-shaped. Supports co-write…

addyosmani/clarity · 76 tokens

commit

Group changes into one atomic commit, draft a Conventional Commit message in COMMITAGENTMSG, put it through an independent review and the commit-msg gates, confirm it with the operator, then commit and rebase. Use this skill whenever the user asks to commit work in a tbhb repo ("commit this," "commit the staged…

tbhb/vale-ai-tells · 86 tokens

codex-merge-pr

Squash merge a pull request. The commit message comes from this workflow rather than from GitHub, whose own version concatenates every commit on the branch into text no linter ever reads. A briefing script prints the published description, every commit the squash collapses, and the diffstat, then leaves a…

tbhb/vale-ai-tells · 121 tokens

merge-pr

Squash merge a pull request. The commit message comes from this workflow rather than from GitHub, whose own version concatenates every commit on the branch into text no linter ever reads. A briefing script prints the published description, every commit the squash collapses, and the diffstat, then leaves a…

tbhb/vale-ai-tells · 118 tokens