Blader Humanizer: Remove AI Writing Patterns

Humanizer is a popular open-source Agent Skill (41k+ stars) designed to rewrite AI-sounding drafts into clear, natural prose that reads like a person wrote it, without altering the underlying facts or fabricating details.

The skill is built on empirical research from Wikipedia's Signs of AI writing guide, maintained by the WikiProject AI Cleanup community.

How It Works

Based on the official repository documentation, Humanizer is not just a paraphrasing prompt, but a structured two-pass editing workflow:

Built on 35 Wikipedia Patterns: Uses the catalog of 35 AI writing markers maintained by the WikiProject AI Cleanup community (Signs of AI writing).
Two-Pass Rewrite Process:
- Pass 1: Rewrites the draft without treating the original sentence structure as fixed.
- Check: Evaluates the draft against the 35 patterns and verifies every original factual claim.
- Pass 2: Rewrites anything that still sounds artificial.
Shows Its Work: When you paste text, Humanizer presents the initial draft alongside a short critique of remaining AI tells before delivering the final clean version.
Never Invents Facts: Names, numbers, dates, quotes, and citations must come from the source or the writer. If a detail is missing, it asks rather than guessing.
Context-Aware & Voice Matching: Keeps technical and reference prose neutral and plain; preserves the writer's style for personal prose. If a writing sample is provided, Humanizer mirrors its rhythm, word choice, and deliberate quirks instead of default rules.
Code & Frontmatter Protection: When pointed at a file, it edits prose only, leaving code blocks, frontmatter, data, and link targets untouched.

AI Writing Patterns It Eliminates

Humanizer targets the most pervasive statistical artifacts produced by modern LLMs:

Stock Buzzwords: delve, testament, tapestry, vibrant, pivotal, foster, landscape, interplay...
Promotional Hype: Inflating routine updates into "revolutionary milestones" or "enduring testaments."
False Binary Setups: Overusing tropes like "It's not just X, it's Y" or forcing ideas into artificial triads.
Pervasive Em Dashes (—): Removing unearned dramatic mid-sentence dashes in favor of straightforward punctuation.
Chatbot Residue: Stripping conversational pleasantries ("I hope this helps!"), faux-candid openers ("Honestly?", "Here's the thing"), and empty optimistic conclusions.

Quick Installation

Via Skills CLI (Recommended for Cursor, Antigravity, PI, Copilot)

# Global install for all local agents
npx skills add blader/humanizer --global

# Or install for the current workspace only
npx skills add blader/humanizer

Via Claude Code Plugin

/plugin marketplace add blader/humanizer
/plugin install humanizer@humanizer

How to Use

Quick text rewrite:

/humanizer [paste your AI-generated text here]

File-level rewriting (File Mode):

Humanize the prose in docs/getting-started.md

Note: Humanizer touches only the prose. Code blocks, YAML frontmatter, tables, and link targets remain untouched.

Voice matching mode:

/humanizer 
Here is a sample of my own writing: [paste 2-3 sample paragraphs]
Now humanize this text: [paste AI draft]

Before & After Comparison

Before (AI-slop):

I recently spent five unforgettable days in Lisbon, and let me tell you — this city completely stole my heart. From the moment I arrived, I knew I was somewhere truly special. Nestled along the banks of the Tagus River, Lisbon stands as a vibrant testament to Portugal's enduring spirit, where rich history and modern energy intertwine at every turn...

After (Humanized):

I spent five days in Lisbon last October and still have mixed feelings about it. Beautiful, yes. Also harder on the knees than anyone warned me. The hills are the whole story and somehow never make the brochures. My hotel was up in Alfama, which photographs beautifully and translates, in practice, to climbing what felt like a six-story staircase every time I wanted coffee...

Blader Humanizer