humanizer

A writing editor that removes patterns often associated with computer-generated prose and makes text sound more natural and specific. It keeps the original meaning and coverage.

In plain words
What is it for?
Use it to rewrite or review documents, emails, posts, reports, interface text, biographies, and other drafts that need a more human voice.
Why use it?
It helps when copy feels generic, overly polished, promotional, formulaic, or unlike the intended writer.

Skill for Claude CodeCodex

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

Made for: Claude Code, Codex.

Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 996 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 $0.00098 $0.00996
Opus 5 $0.00049 $0.00498
Sonnet 5 $0.00020 $0.00199
Haiku 4.5 $0.00010 $0.00100

Measured 2d ago against content hash 467245e5737f, 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 2d 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 · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Humanizer

Turn text that sounds model-written into text that sounds human-written. The goal is not to add quirks or make the prose messy. Preserve meaning and author intent while removing AI tells, promotional padding, formulaic structure, and the fake smoothness that makes text feel generated.

Workflow

  1. Classify the task

    • If the user asks to humanize, de-AI, or make text sound natural, rewrite the text.
    • If the user asks for a review or AI-writing audit, return a concise issue list and fixes.
    • If the user provides a file path, read the file and either rewrite or edit it as requested.
    • If the user provides a writing sample, calibrate to that voice before rewriting the target text.
  2. Preserve meaning and coverage

    • Keep the core information and stance.
    • Cover the same substantive points as the source.
    • Flag suspicious facts, citations, and data. Do not invent sources to patch gaps.
  3. Audit patterns before rewriting

    • For a thorough review, read references/ai-writing-patterns.md.
    • For a fast, strict cleanup, read references/stop-slop-rules.md.
    • Look for clusters of tells. Do not rewrite normal human prose because of one em dash, one formal word, or one transition.
  4. Run the stop-slop final gate

    • Cut greeting residue, meta commentary, filler, fake profundity, and boilerplate.
    • Prefer active voice and concrete nouns.
    • The final rewrite must contain no em dash or en dash.

Output format

Default output:

## AI tells

- [the 3-6 most important problems]

## Rewrite

[final rewrite]

## Notes

- [optional: fact risks, voice choices, preservation/removal rationale]

If the user asks for final-only output, direct file edits, or no explanation, skip the commentary and provide only the result.

Voice calibration

When the user provides a writing sample, inspect it before rewriting:

  • Sentence length: short, long, or mixed?
  • Word choice: casual, technical, formal, sharp, plain?
  • Paragraph openings: direct, contextual, narrative?
  • Punctuation habits: parentheses, colons, semicolons, dash substitutes?
  • Transitions: explicit connectors or hard cuts?

Read the full file on GitHub · 101 lines

Files

What ships with it

2 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. 2d ago First seen · 101 lines · 98 tokens per session scan A 467245e5737f

Subscribe to this mod's changes

humanizer is a skill published in the GitHub repository vaayne/agent-kit (53 stars, last pushed 5d ago), licensed MIT. It adds 98 tokens to every session and 996 once invoked, about $0.0005 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.

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