Humanizer, Skill Creator, Grill Me, Caveman and Marketing Skills in Claude Code: the exact install commands, a free first test, and when to use each one.
Swipe or tap Next · checked on 2026-10-31
If you don't have Claude Code yet, do the first two steps under “Before you start” below (Node.js and Claude Code). Then make a folder for your marketing work, start Claude in it, and paste the prompt. It installs all five, runs a first test that sends nothing anywhere, and hands you a cheat sheet.
Make the folder and start Claude in it
mkdir -p ~/marketing
cd ~/marketing
claudeThe setup prompt (copy all of it) · lines 1-1 of 31. Copy all copies the whole prompt; read it in full on the page.
Hi Claude. Please be my patient setup helper. I run a business and I don't code: one step at a time, tell me exactly what to type or click, and wait for me before the next step.Hi Claude. Please be my patient setup helper. I run a business and I don't code: one step at a time, tell me exactly what to type or click, and wait for me before the next step.
Goal: install five free skills for you, and teach me when to use each one: Humanizer (GitHub repo blader/humanizer), Skill Creator (anthropics/skills), Grill Me (mattpocock/skills), Caveman (JuliusBrussee/caveman) and Marketing Skills (coreyhaines31/marketingskills). Follow this guide; it's the source of truth for every command:
https://receiptsgroup.com/guides/five-beginner-claude-skills
I started you inside a folder called marketing in my home folder.
Steps:
1. Check my Node.js version with: node --version. It has to be 22.20 or later. If it's older or missing, send me to nodejs.org to download the LTS installer, and wait until I've done it.
2. Install the first four skills for every folder on my computer. One at a time: show me the command, explain each part in plain English, and run it only after I say yes.
npx --yes skills add blader/humanizer -g -a claude-code -y
npx --yes skills add anthropics/skills --skill skill-creator -g -a claude-code -y
npx --yes skills add mattpocock/skills --skill grill-me --skill grilling -g -a claude-code -y
npx --yes skills add JuliusBrussee/caveman --skill caveman -g -a claude-code -y
3. Install Marketing Skills in this marketing folder only, not everywhere, because it's 53 skills. Show me the command and run it after my yes:
npx --yes skills add coreyhaines31/marketingskills --skill '*' -a claude-code -y
4. Check they're all there with: npx skills ls -g, then npx skills ls. Then tell me to type /skills so I can see them myself. If one is missing, tell me to type /reload-skills.
5. First test, nothing leaves this computer: run /humanizer on the made-up paragraph in the guide's "First test" section. Show me the rewrite and the list of what it changed and why.
6. Give me a cheat sheet: one line per skill saying when I'd use it and exactly what to type to start it.
Rules:
- Don't turn Caveman on during this setup. I need full sentences while I'm learning.
- Never install, update or remove a skill without showing me the exact command and getting my yes.
- If a skill wants a key, token or password, stop and tell me. Never ask me to paste one into this chat.
House rules for this setup:
- If you use a technical word, explain it in plain English the first time.
- Ask me before you assume anything about my business, my accounts or my setup.
- Stop and check with me before anything that costs money or spends credits.
- Stop and check with me before anything that sends, posts or publishes to real people.
- Stop and check with me before you delete or overwrite anything.This is the manual way: every step and every command. Claude follows it too.
The five don't plug into each other, but they line up nicely on one real job, like a new service page:
Caveman sits off to the side: turn it on with /caveman for a long working session when you want shorter answers, and off with “stop caveman”.
SKILL.md file: instructions that teach Claude one job./ and a skill's name in Claude Code (like /humanizer) to run that skill on purpose. Most skills also kick in on their own when what you ask fits them.npx comes with it and downloads and runs a tool in one go.npx skills.-g) vs project: global means every folder on your computer (~/.claude/skills; the ~ is your home folder). Without -g, the skill goes in .claude/skills inside the folder you're in, and only works there./grill-me/product-marketing first so the rest know your business./copywriting, /seo-audit, /emails)/humanizer, then paste the text/skill-creator, or “make a skill for ...”/caveman; “stop caveman” or “normal mode” ends itFrom each skill's own README and SKILL.md, checked 2026-10-31.
The Skills CLI needs Node.js 22.20 or later. Download the LTS version (the long-term support one) and run the installer. Then open a new terminal window and check the version.
Check Node.js
node --versionSkip this if claude --version already prints a version. Claude Code needs a paid plan (Pro or higher); the free Claude plan doesn't include it. The first time you run claude, it opens your browser to log in.
Mac, Linux or WSL
curl -fsSL https://claude.ai/install.sh | bash
# open a NEW terminal window, then:
claude --versionWindows PowerShell
irm https://claude.ai/install.ps1 | iex
# open a NEW PowerShell window, then:
claude --versionEvery npx skills add line below goes in your terminal, not inside Claude. If npx asks “Ok to proceed?”, type y: that's it downloading the Skills CLI. If the CLI asks symlink or copy, take the recommended symlink. Each command installs only from the GitHub repo named in it, and asks for no login or key.
Made by blader, MIT license. It's built on Wikipedia's Signs of AI writing, the field guide Wikipedia's editors use to catch undisclosed AI text. It checks for 26 patterns, strongest first: “it's not just X, it's Y”, one-line closers like “Let that sink in.”, deep-sounding sayings, staged run-ups, stock AI words like “testament” and “delve”, and dashes everywhere.
Two things I like about it. It doesn't make anything up: if a sentence needs a name, a number or a date it doesn't have, it asks you instead of inventing one. And it's upfront that it edits for readers, not to sneak past AI detectors; its README says detectors still flag most of its output.
This is the command from Humanizer's own README for Claude Code through the Skills CLI.
Install Humanizer (every folder)
npx skills add blader/humanizer --global --agent claude-codeType /humanizer, then paste your text. You get its first rewrite, a short note on anything that still sounds off, and the final version. To make it sound like you, give it two or three paragraphs you wrote yourself first. Point it at a file and it changes the writing only, leaving code, data and links alone.
Match your voice
/humanizer
Here's a sample of my writing for voice matching:
[paste 2-3 paragraphs you wrote yourself]
Now rewrite this text:
[paste the AI text]/humanizer
Here's a sample of my writing for voice matching:
[paste 2-3 paragraphs you wrote yourself]
Now rewrite this text:
[paste the AI text]Made by Anthropic (the company behind Claude), Apache 2.0 license. Its job, in its own words: create new skills, improve existing ones, and test how well they work. You tell it the job, it drafts the SKILL.md, writes a few test prompts, runs them, shows you the results and rewrites the skill from your feedback.
The testing part runs small Python scripts and takes a while. If you just want the skill written, say so: its own instructions tell it to skip the formal tests when you'd rather just work through it together.
From Anthropic's skills repo, just this one skill.
Install Skill Creator (every folder)
npx skills add anthropics/skills --skill skill-creator -g -a claude-codeClaude Code's own docs install it as a plugin instead (a plugin is a bundle Claude Code installs from a marketplace). Type this inside Claude Code. Pick one way, not both. As a plugin, its slash command gets the plugin's name in front; asking for skill-creator by name works either way.
Inside Claude Code
/plugin install skill-creator@claude-plugins-officialTell it the job and where it should live: ~/.claude/skills for every folder, or .claude/skills for this project only.
Make a skill from a job you repeat
/skill-creator
I keep asking you to <the job, e.g. turn my inspection notes into a short homeowner summary>. Make it a skill in ~/.claude/skills. Ask me how I do it, one question at a time, then show me the SKILL.md before you save it. Skip the formal tests for now; we'll try it on one real job together./skill-creator
I keep asking you to <the job, e.g. turn my inspection notes into a short homeowner summary>. Make it a skill in ~/.claude/skills. Ask me how I do it, one question at a time, then show me the SKILL.md before you save it. Skip the formal tests for now; we'll try it on one real job together.Made by Matt Pocock, MIT license. He calls it one of his most popular skills, and it's for non-code plans too. You tell it what you want to do, and it interviews you in rounds: numbered questions, each with its own recommended answer (so “yes” takes the recommendation), until every decision in your plan is settled. It won't act on the plan until you confirm you're on the same page.
One thing most install videos miss: grill-me is a two-line skill that hands off to a second skill called grilling, which holds the actual questioning. You need both, which is why the command names both.
Install Grill Me + grilling (every folder)
npx skills add mattpocock/skills --skill grill-me --skill grilling -g -a claude-codeMatt's README installs every one of his skills (27 listed in his README, most of them for software work) as a plugin that updates itself. If you go this way, skip the command above: his README warns that installing both ways gives you every skill twice. His /setup-matt-pocock-skills step is for his engineering skills, not Grill Me.
His Claude Code install (terminal)
claude plugin install mattpocock-skills@claude-plugins-officialIt only starts when you type /grill-me: Claude won't fire it on its own. Answer each round; say “yes” to take its recommendations.
Grill a plan
/grill-me
I want to <the plan, e.g. add a financing page to my website before spring>. Grill me until the plan makes sense. Don't build or change anything.Made by Julius Brussee, Apache 2.0 license. The joke in the video is “me read file, me fix bug”. The real skill is less cartoon than that: its rules say answer first, cut the greeting and the recap, short sentences, and no “me think” theater.
It never drops words like not, never or only, keeps numbers and commands exactly as they are, and switches back to full sentences for security warnings and anything you can't undo. Once on, it stays on for the whole session until you say “stop caveman” or “normal mode”.
On its own test of ten questions: 6,983 output tokens with no instruction, 4,334 when you just say “Answer concisely.”, and 4,119 with /caveman. So most of the saving you get by asking Claude to be concise; Caveman makes that stick all session and trims a bit more (its separate /ultracave skill goes further).
The rules themselves cost about 1,160 tokens to load, and those numbers are from an older version of its rules. I like that they publish this. Use it on long sessions where you keep hitting your limit, not while you're still learning, because short answers are harder to follow.
This is the “skill alone” route from Caveman's README, narrowed to the one caveman skill (the repo holds many others).
Install Caveman (every folder)
npx skills add JuliusBrussee/caveman --skill caveman -g -a claude-codeCaveman's headline install (npx @caveman-ai/cli@latest) goes a lot further: it sets up every coding app it finds on your computer, sends usage stats by default, and one of its features (Auto, which picks the model for you) needs an account. That's a bigger decision than a beginner needs to make. The skill alone runs on your computer and sends nothing.
Inside Claude Code
/caveman
...
stop cavemanExample (made up). Normal: “Sure! I'd be happy to help. The reason your contact form isn't sending emails is most likely that the email setting was left blank when the form was set up.” Caveman: “Form email not sending. Email setting blank. Fill it in, then send a test.”
Made by Corey Haines, MIT license. On 2026-10-31 the repo had 53 skill folders: copywriting, SEO audits, ads and ad creative, emails, landing pages (cro), pricing, referrals, schema, cold email and more.
The one to run first is product-marketing: it interviews you about your business, customers and how you talk, and saves it as .agents/product-marketing.md in your folder. Every other skill reads that file first, so you stop explaining your business every time.
Fifty-three skills is a lot to load everywhere, so I'd put them in one marketing folder only (no -g). Claude Code loads a short description of every skill into each conversation, and when there are too many it starts cutting descriptions, which makes it worse at picking the right one.
Run this from inside ~/marketing. --skill '*' means all of them; -a claude-code makes sure they land where Claude Code reads them (its README warns they can end up in a folder Claude Code doesn't read otherwise).
Install all Marketing Skills (this folder only)
cd ~/marketing
npx skills add coreyhaines31/marketingskills --skill '*' -a claude-codeJust see the list first (installs nothing)
npx skills add coreyhaines31/marketingskills --listStart claude in ~/marketing and run this. With no website code in the folder, pick “start from scratch” and it walks through it with you, one section at a time.
Inside Claude Code
/product-marketing
Start from scratch. Ask me one section at a time about my business, my services, my customers and how I talk. Use only what I tell you.Ask for the job in plain English and Claude picks the skill that fits, or call one by name: /copywriting, /seo-audit, /emails, /ads, /cro. Some skills point to paid tools for data; the README lists four sponsored partners and says they don't change what the core skills recommend. You don't need any of them to start.
In your terminal
npx skills ls -g # the four global ones
cd ~/marketing
npx skills ls # the Marketing Skills in this folderThen start claude in ~/marketing and type /skills: you should see all five. Claude Code picks up new skills without a restart. The one exception: if ~/.claude/skills didn't exist when your session started, type /reload-skills once.
This runs on your Claude plan with nothing posted, sent or published. Paste it into Claude Code:
Prompt: first test
/humanizer
Example (made up): In today's fast-paced world, your roof is more than just a roof. It's a testament to your home's resilience. At Example Roofing Co., we don't just install roofs; we deliver peace of mind, quality, and excellence. Our team is passionate about elevating every homeowner's experience. Let that sink in./humanizer
Example (made up): In today's fast-paced world, your roof is more than just a roof. It's a testament to your home's resilience. At Example Roofing Co., we don't just install roofs; we deliver peace of mind, quality, and excellence. Our team is passionate about elevating every homeowner's experience. Let that sink in.Good: it should flag the “more than just a roof” and “don't just install roofs” lines, the “testament” and “passionate about elevating” filler, the “peace of mind, quality, and excellence” list of three and the “Let that sink in.” closer, and the rewrite is shorter and plain.
It may ask you for a real fact to put in place of the fluff (how long you've been in business, what you actually install). That's it refusing to make one up. Bad: Claude rewrites it without listing what it changed. Then the skill isn't loading: type /skills and check humanizer is there.
Then try /grill-me on something small you're actually planning. It costs you a few minutes of answering questions, and it's the quickest way to see what it does.
1. A service page, start to finish
/grill-me
I want a new page on my website for <the service>. Grill me on who it's for, what it should get them to do, and what proof I actually have. Don't write anything yet.
(after the grilling)
/copywriting
Write the page from what we just settled. Use only facts I gave you: no made-up reviews, numbers or guarantees, and no promises about Google rankings. Then run /humanizer on it and show me both versions./grill-me
I want a new page on my website for <the service>. Grill me on who it's for, what it should get them to do, and what proof I actually have. Don't write anything yet.
(after the grilling)
/copywriting
Write the page from what we just settled. Use only facts I gave you: no made-up reviews, numbers or guarantees, and no promises about Google rankings. Then run /humanizer on it and show me both versions.2. An SEO check of your homepage
/seo-audit
Check <your homepage URL>. Tell me the five fixes that matter most, in plain English, each with who would do it (me, or my web person). Don't change anything, and don't promise rankings.3. Follow-up emails after an estimate
/emails
Draft three short follow-up emails for a homeowner who got an estimate but hasn't decided. Sound like me (see .agents/product-marketing.md). No pressure tactics, no fake deadlines. Show me the drafts only; don't send anything.4. Make it a skill once it works
/skill-creator
Turn what we just did for the follow-up emails into a skill called estimate-follow-up in ~/.claude/skills. Show me the SKILL.md before you save it.5. A long working session
/caveman
We're going through my whole services list today. Keep answers short until I say stop caveman.Skills installed with the Skills CLI don't update themselves. Check now and then:
Check, update, remove
npx skills check # anything to update?
npx skills update -g # update your global skills
cd ~/marketing && npx skills update -p # update the Marketing Skills
npx skills remove --global caveman # take one off (any skill name works)npx skills check # anything to update?
npx skills update -g # update your global skills
cd ~/marketing && npx skills update -p # update the Marketing Skills
npx skills remove --global caveman # take one off (any skill name works)The Skills CLI sends anonymous usage data by default. Set either of these to 1 to switch it off:
DISABLE_TELEMETRYTurns off the Skills CLI's anonymous usage data
Your terminal, before npx skills (e.g. in your shell profile)DO_NOT_TRACKDoes the same thing; either one works
Your terminal, before npx skillsChecked 2026-10-31 on claude.com/pricing and each repo. Prices change: check before you buy.
The real cost is your plan's usage limit. Every skill runs on it, and a long Grill Me session or a Skill Creator test run uses a good chunk. That's where Caveman earns its spot. And watch one thing: the skills are free, but a skill can point Claude at a paid tool (an SEO data service, an ad account). If one asks for a key or an account, stop and read why before you go on.
npx: command not found or node: command not foundNode.js isn't installed, or your terminal was open before you installed it. Install the LTS from nodejs.org and open a new terminal window.
/skillsIt was installed without -a claude-code (so it landed where Claude Code doesn't look), or for one project in a different folder. Run npx skills ls -g and npx skills ls, then reinstall with -a claude-code. If ~/.claude/skills didn't exist when the session started, type /reload-skills.
/grill-me runs but doesn't really grill youThe grilling skill is missing; grill-me only hands off to it. Install both: npx skills add mattpocock/skills --skill grill-me --skill grilling -g -a claude-code.
That's on purpose: it's set to run only when you type /grill-me.
You installed the same set two ways (the plugin and the Skills CLI). Keep one: npx skills remove --global <name> takes off the CLI copy.
/humanizer:humanizerNormal for plugins: their skills get the plugin's name in front. The Skills CLI installs in this guide give you the short names.
Run /product-marketing once and start claude in the same folder each time; the other skills read .agents/product-marketing.md from there.
Too many skills can crowd each other out: Claude Code trims descriptions to fit. Keep the 53 marketing skills in one folder (no -g), run /doctor to see what the skill list costs, or call the skill by name.
Say “stop caveman” or “normal mode”. Turn it back on with /caveman when you're doing work you already know.
Its description wakes it on phrases like “be brief” or “less tokens”. Say “stop caveman”; it confirms in one line.
That's not what it's for: its README says it edits for readers and detectors still flag most of its output.
Working as designed: it won't invent names, numbers or dates. Give it the real fact, or tell it to cut the sentence.
That's its testing loop. Tell it to skip the formal tests and just write the skill with you.
npxNormal: Claude Code asks before it runs most commands. Read it and say yes only if it's the command you expected.
Wait for the reset shown, or look at a bigger plan. For long sessions, /caveman stretches it a bit.
What each page backs up is listed at the end of the full guide.
Five free skills, five commands, and now you know which one to grab: Grill Me before you build, Marketing Skills to draft, Humanizer before it goes out, Skill Creator once you've done it twice, and Caveman when your limit's running low.
Want help setting this up? Receipts Group builds these systems.
Open the full guide as a page (every file in full, plus the table of contents).