Humanizer

by Prism-Shadow

Humanizer is a Writing skill for Claude Code, published by Prism-Shadow in penguin-harness.

1.5K stars150 forkson Prism-Shadow/penguin-harnessAdded 2026/08/19+21% in starsRepository updated 2026/08/19

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Install in seconds

Install Humanizer

Copy Humanizer into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/Prism-Shadow/penguin-harness/tree/main/packages/skills/skills/humanizer ~/.claude/skills/humanizer

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/Prism-Shadow/penguin-harness.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: packages/skills/skills/humanizer/SKILL.md in Prism-Shadow/penguin-harness
Installs to: ~/.claude/skills/humanizer
Collection: One of 21 skills cataloged from this repository
Category: Writing — 1012 skills

What Humanizer does

Humanizer rewrites or edits prose in any language so it reads like edited human writing in the register of books, newspapers, and encyclopedias rather than default AI output. Use it to revise drafts, remove AI tells, and match per-language idiom and typography.

Humanizer is cataloged under Writing on DirSkills. Humanizer comes from a repository tagged agent, agentic-ai, ai, build-tool and claude-code.

Documentation

README

Excerpt

Humanizer

Make prose read like edited human writing: the register of books, quality newspapers and encyclopedia entries. Everything here was derived empirically, across seven rounds of drafting, blind editorial review and revision, documented with counts in reference/case-study.md. The working surface is deliberately small: a writer boxed in by a long checklist produces compliance, not prose — that failure mode is the case study's best-documented finding. Draft with the principles below; diagnose with the catalog afterwards.

Before you start

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Humanizer

What else does Prism-Shadow publish alongside Humanizer?
Humanizer is one of 21 skills that DirSkills catalogs from Prism-Shadow/penguin-harness, the repository it ships in. Its siblings there include Agent Creation, Agent Evaluation and Agent Optimization. Each one is a separate skill with its own page in this directory, installs the same way Humanizer does, and is maintained by Prism-Shadow in that same repository. The rest of the collection is listed on the Prism-Shadow/penguin-harness page.
How does Humanizer compare to other Writing skills?
Humanizer ranks #320 by stars among the 1012 Writing skills in this catalog. The most-starred ones next to it are Article Writing, Social Media Content Calendar and Knowledge Comic Creator. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Humanizer against them. Open each page to compare what they document and how they install.