This is the exact setup I use. What Claude Code skills are, how to install them in 3 minutes, the full Humanizer skill file to copy-paste, and where to find 383 more skills built by Anthropic, Google, Vercel, Stripe, and the community. Everything you need. Nothing you don't.
A Claude Code skill is a markdown file that lives in your project at .claude/skills/. Claude reads it automatically at the start of every session and follows the instructions inside — without you having to prompt it every time.
Think of it as a set of permanent instructions baked into Claude's behaviour for that project. You write the rules once. Claude follows them every time.
Skills can tell Claude how to write, how to review code, which patterns to follow, which words to avoid, how to handle specific tasks — anything you'd normally have to type out as a prompt, you can make permanent with a skill file.
One skill file. Zero repeated prompting.
A plain markdown file at .claude/skills/your-skill.md with instructions written in plain English.
Every time you open Claude Code in that project, it reads every skill file in the .claude/skills/ folder.
No manual prompting. The skill runs in the background on every output — writing, code, emails, anything.
The skill's rules apply consistently. Your defaults are now better. Permanently.
Navigate to the root of any project where you use Claude Code. This is where the skill will live.
Run this in your terminal: mkdir -p .claude/skills — this creates the folder Claude looks for automatically.
Create a new file: .claude/skills/humanizer.md — open it in any text editor.
Copy the full skill file from Section 04 below and paste it into the file. Save it.
Start a new Claude Code session in that project. The skill loads automatically. No configuration needed.
Type: "Activate the humanizer skill for this conversation." Claude confirms and applies it to every output from that point on.
This is the complete skill. Copy everything below and paste it into your .claude/skills/humanizer.md file. That's all you need to do.
--- name: humanizer version: 2.2.0 description: | Remove signs of AI-generated writing from text. Use when editing or reviewing text to make it sound more natural and human-written. Detects and fixes: inflated symbolism, promotional language, superficial analyses, vague attributions, em dash overuse, rule of three, AI vocabulary words, negative parallelisms, and excessive conjunctive phrases. allowed-tools: - Read - Write - Edit --- # Humanizer: Remove AI Writing Patterns You are a writing editor. When this skill is active, silently scan every output before delivering it. Identify AI patterns. Rewrite them. Preserve meaning. Add soul. Then run the final audit below. ## WORDS TO KILL ON SIGHT delve, tapestry, pivotal, underscore, leverage, utilize, vibrant, nestled, groundbreaking, testament, crucial, foster, garner, intricate, landscape (abstract), showcase, align with, enhance, Additionally, enduring, highlight (verb), interplay, valuable, revolutionary, in today's landscape, cutting-edge, game-changer, genuinely, straightforward, key (as adjective) ## STRUCTURAL PATTERNS TO REMOVE → Em dash overuse — replace with commas or full stops → Rule of three padding → say it once, clearly → Emoji headers → remove entirely → Bold colon bullet lists → rewrite as prose → Generic positive endings → end with a specific fact → Vague attributions (experts say) → name source or cut → Excessive hedging → say what you mean directly → Sycophantic openers (Great question!) → cut entirely → Not only...but... constructions → simplify → Copula avoidance (serves as / stands as) → use "is" → Knowledge cutoff disclaimers → remove → False ranges (from X to Y) → rewrite directly ## HOW TO ADD SOUL Have opinions. Don't just report — react. Vary sentence length. Short. Then longer ones. Use "I" when it fits. First person is honest. Be specific about feelings, not vague. Acknowledge complexity and mixed feelings. Let some mess in. Perfect structure feels algorithmic. ## FINAL AUDIT — ALWAYS RUN THIS LAST Before delivering any output, ask yourself: "What makes this obviously AI-generated?" Answer briefly. Then fix what remains. Only then deliver the final version.
These are the most common signs of AI-generated writing. The humanizer kills all of them automatically.
Here's what the difference looks like in practice:
AI-assisted coding serves as an enduring testament to the transformative potential of large language models, marking a pivotal moment in the evolution of software development. These groundbreaking tools underscore the vital role of innovation.
AI coding tools speed up some tasks. A 2024 Google study found developers using Codex finished simple functions 55% faster. They showed no improvement on debugging or architecture.
Great question! Here is a comprehensive overview. I hope this helps! Let me know if you'd like me to expand on any section. Additionally, it's worth noting that this encompasses many facets.
The short answer is no. Here's what actually works instead — and why the common advice gets this wrong.
Say "Activate the humanizer skill" at the start of any Claude Code session. Applies to everything until session ends.
Paste any text and say "Humanize this." Claude audits and rewrites — draft, self-check, final version.
Paste the skill rules into any system prompt. Every output from that prompt is humanized automatically.
The Humanizer is one skill. These three GitHub repositories contain hundreds more — built by official engineering teams at the biggest companies in tech.
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