The AI Hedgehog Concept Coach skill for Claude
You tell Claude everything you do, and instead of an understanding nod you get a structured interrogation back. Where are you objectively better than the competition, what would you still do with five million in the bank, and which single denominator do you actually steer by? This free skill applies Jim Collins' Hedgehog Concept: three circles, an intersection with a name, a list of what to stop, and a ninety-day test. Vague answers get refused. That is not a bug, that is the framework.
the rules above come from the zip on this page · SKILL.md is 7,956 bytes
Portfolio in, hedgehog out
reg. H.001This is example 1 from the SKILL.md itself, shortened here: a landscape gardener from Oisterwijk with seven services and the feeling of chasing his own tail. Watch the moment halfway through: the first answer is too vague, and the skill does not accept that. The follow-up question comes straight from the file.
What the AI Hedgehog Concept Coach is
The AI Hedgehog Concept Coach is a free skill from our skill library, which now holds 100 skills. A skill is an instruction file, SKILL.md, that gives an AI assistant a fixed method for one task. No software to install, no subscription, no link to your calendar: one text file of 1,267 words that tells Claude how to apply Jim Collins' Hedgehog Concept to you.
Which questions it asks, in what order, what it does with a vague answer, and in what format the result is delivered: it is all in there. You download the zip at the top of this page, put it in your Claude environment, and from that moment Claude runs this conversation by Collins' rules. What a skill actually is and how that works technically is explained at what are Claude skills NL.
The problem this skill solves is one anyone recognises who has ever said yes to work that did not really fit. You started with one thing, a service got added because a client asked for it, another because you could, and now you are on your website with seven services, chasing your own tail everywhere. Every service feels like revenue you do not want to lose, so choosing keeps getting put off. The Hedgehog Concept was invented for exactly that situation: it forces you to find the intersection of what you can genuinely do, what you genuinely want, and what genuinely makes money, and to deliberately let everything outside it drop.
It is meant for business owners with too many projects or services who need to choose, and for people looking for their career direction. Those are literally the two groups the file is written for. Along with the rest of the library, we make it available free through the AI and automation service, with no account and no sales email afterwards.
One thing you should know upfront: this is not a skill that agrees with you. It is written like a mentor who pulls you out of your comfort zone towards one clear answer, and you can feel it. Vague answers get rejected, wishful thinking gets called out, and without concrete input on all three circles there is no conclusion. If you are looking for confirmation of the course you are already on, better not to download this one.
The fox, the hedgehog and Jim Collins
The Hedgehog Concept comes from Good to Great, the book in which Jim Collins investigated in 2001 why some companies make the leap from good to great and comparable companies do not. His conclusion, in the words of the skill file: the companies that make that leap are almost all hedgehogs. They have one iron-clad core idea and they stick to it.
The name comes by way of a detour. Isaiah Berlin wrote an essay on Tolstoy in 1953, built on an old Greek saying: the fox knows many things, the hedgehog knows one big thing. The fox is clever, adaptable and has an answer for everything. The hedgehog has one trick, but it always works. Collins borrowed that image for business strategy: anyone who is a bit good at everything eventually loses out to someone who is exceptional at one thing and deliberately leaves the rest alone.
The framework itself is the intersection of three circles. Circle one: where you can be the best in the world, or in your market, region or segment. Not what you would like, but what you can genuinely outperform others at. Circle two: what you have a deep passion for. Not what you enjoy, but what gets you out of bed again every morning. Circle three: what drives your economic engine, in other words which single economic denominator has the most impact. Where the three circles meet is your hedgehog. Everything outside it you let go, however attractive it looks.
Collins later wrote a grim sequel. In How the Mighty Fall from 2009, he describes what happens when companies let go of their hedgehog and start working on everything at once again. That book is also in this skill's sources list, as a warning: finding a hedgehog is one thing, staying with it is the real work. If you also want to map your surroundings alongside this core choice, the SWOT analysis skill and the PESTEL Analyst skill NL sit next to it in the same library: those look outward, the hedgehog looks inward.
Three circles, one intersection
reg. H.002The whole framework in one image, with underneath it the questions the skill asks per circle. Those questions come straight from the file, and they are deliberately uncomfortable: a circle only counts once the answer is concrete.
WHERE YOU CAN
BE THE BEST
WHERE YOUR DEEP
PASSION LIES
WHAT DRIVES YOUR ECONOMIC ENGINE
What is actually in the SKILL.md
A skill is only as good as its instructions, so we simply describe them here. At the top sits frontmatter stating when Claude should pick the skill up: for the obvious terms like Hedgehog Concept, Jim Collins and Good to Great, but also for laments like what is my focus, where should I place my bets, I am doing too much, I need to choose, and where does my edge lie. Anyone who says something like that to Claude while the skill is loaded gets it automatically. The frontmatter also states version 1.0.0 and the MIT licence.
Then comes the role description: a seasoned strategy coach who forces focus, does not let vague answers stand, and works towards one clear core idea. Six things are listed that the skill does. It actively questions you on all three circles. It refuses vague answers and keeps probing until something concrete appears. It names the intersection and gives it a name. It builds a list of what you should stop, everything outside the intersection. It builds a list of what you should strengthen, everything inside it. And it defines the single economic denominator you can steer by.
The method itself is a four-step conversation structure that may not be skipped: circle one, circle two, circle three, synthesis. Per circle, the follow-up questions from FIG.02 sit word for word in the file, each step with its own warning attached. At circle one: this does not have to be your current core business, it can be something new you could become, but it has to be realistic.
At circle two: passion is not a hype word but a lasting interest that survives for years. At circle three: Collins calls this the economic denominator, and every great business leader can name one, not ten. The synthesis combines the three answers into one sentence in a fixed format, and that sentence gets a working name, such as The Premium Gardener Hedgehog.
The output format is fully fixed: nine blocks, from the synthesis sentence to a warning, which you can see expanded in FIG.03 below. Two worked examples follow: the gardener from FIG.01 and a copywriter who did everything from SEO blog posts to product copy and, after the conversation, chose email conversion for SaaS companies as their hedgehog. At the end sit five hard rules, three source citations and a tone instruction that sets the mood of the conversation: direct, no jargon, and literally "hold on, that is not concrete enough, give me a real example" instead of politely going along with it. If you want to learn to build a file like this yourself, the full explanation is at writing SKILL.md NL.
Nine blocks, fixed order
reg. H.003Every conversation ends in the same format. The instructions are unforgiving about it: always deliver the structure below, no loose form. The mono lines underneath explain why each block is there.
The stop list and the strengthen list from example 1, in diff form: what goes out and what comes in its place. This is what a hedgehog feels like in practice: three lines red, three lines green.
What the skill refuses
reg. H.004The SKILL.md closes with five hard rules, and that list matters at least as much as the questions. A hedgehog built on wishful thinking is worse than no hedgehog. In conversation, the rules play out like this: each rule as a request you could make, with the response the skill gives according to its own instructions.
Installing in Claude Code, Claude.ai or Codex
The zip contains one folder, ai-hedgehog-concept-coach, with the SKILL.md inside. Installing is a matter of putting the file in the right place, and that place differs per environment. SKILL.md has been an open standard since December 2025, so the same skill also works in Codex, Cursor and Gemini CLI. So you are not downloading a Claude file but a working instruction any modern AI assistant can read.
- Unzip it into
~/.claude/skills/(or.claude/skills/in your project). - Claude then recognises the skill by itself as soon as you start talking about focus or choosing.
- Calling it directly also works, with
/ai-hedgehog-concept-coach.
- Go to Customize and then Skills.
- Upload the zip there as a skill.
- Or paste the contents of SKILL.md into the project instructions of a Project.
- Open
AGENTS.mdin your repository. - Paste the contents of SKILL.md into it, or place SKILL.md next to it as a separate file and reference it from
AGENTS.md. - Codex reads that at the start of every session.
After that, using it is simple: name your services or projects and say you want to choose. The conversation starts at circle one by itself and keeps hold of you until all three circles are concrete. The step-by-step explanation with screenshots for every environment is at installing Claude skills NL, and anyone who first wants a broader understanding of working with AI can start at the knowledge base.
When you use it, and when you do not
It is at its strongest the moment your portfolio is overflowing and every service feels like revenue you cannot lose. Business owners with seven services and the feeling of chasing their own tail, freelancers who take on anything that comes along, and people looking for their career direction: that is what the framework is built for, and the conversation format works for one person just as well as for a company. You can use it as a team too, by running the conversation together and weighing the answers per circle out loud.
There are also situations where you are better off leaving it alone. What you get is a strategic choice, not validation: whether the market will pay for your hedgehog is something you test afterwards in reality, and that is exactly why every conversation ends with a ninety-day test instead of a conclusion. It is also not an environmental analysis. The hedgehog looks inward, at your ability, passion and economic engine. If your market changes, new rules arrive or a competitor shifts position, an outward-looking analysis belongs alongside it. And do not confuse the hedgehog with advertising copy: the file explicitly bans treating the concept as a marketing tagline.
The most important limit is your own honesty. Vague answers get refused, but nobody here can check whether your concrete answers are actually true. Anyone who fills in circle one with their dream instead of their genuine ability gets a hedgehog that sounds convincing in conversation and collapses in practice. The ninety-day test catches some of that, but the honest answer is still faster. And it goes without saying that a conversation with an AI does not replace business or financial advice for major decisions: the skill sharpens your thinking, the choice and the responsibility stay yours.
Run it yourself, or have it run
reg. H.005This skill is the free do-it-yourself version of thinking work we also deliver as a service. It stays complete, with no catches, but be aware what a skill is: it teaches your AI how to do something, while every new session starts empty. A skill is not the engine and not the memory. You prompt, you supply the context again every time, you check. Anyone who wants that differently has two next steps: hand over the engine, or sort out the memory.
where you are now The skill: you are the engine You run the Hedgehog Concept Coach yourself in Claude, Codex or Cursor. Costs nothing, works today, and stays entirely in your own hands: no trial period, no locked parts. The limit is your own time: the conversation only happens when you start it, and so does following up your stop list.
only if it keeps coming back The AI employee: usually not the next step here None of our roles fit here, and we would rather say that than sell it to you. The three roles we set up ready-made are the Quote employee (sorting incoming requests and preparing draft quotes), the Sales employee (prospect research and outreach drafts) and the Reporting employee (summaries and weekly and monthly reports from your own data). What this skill delivers, three circles and a stop list, fits none of those three. What is possible is a role built to measure via Mansotti, the company TheSEO trades as, but only if you hold your core focus up to the light more often than once every few years. If this work is a single session a year for you, skip rung 2: the stop list you make is only worth something if it sticks somewhere, and that is rung 3. What an AI employee actually does is on that page.
everything from one source Jarvis: all your AI tools work from the same company knowledge The skill teaches the AI; the brain is where the memory lives. Your hedgehog sentence, your economic denominator and your stop list are exactly the kind of core knowledge you do not want to explain again every session. That is Jarvis, the organisation brain: it connects ChatGPT, Claude, Codex and your people to the same projects, core knowledge and decisions, so your next AI session does not start from scratch. What that delivers in practice, from the plans to your first week, is at Jarvis itself.
What Jarvis actually delivers
reg. H.006A hedgehog is only worth something if it gets watched over every week, and that is exactly what a standalone chat session cannot do: it loses its memory the moment you close the window. Jarvis is the organisation brain: it remembers what your AI tools need to know, divides up the work and keeps track of what happened. You notice it first at the start of a new session.
We have been working this way ourselves for months. Every agent session, every task and every decision goes into the log and can be read back. A new session therefore does not start blank: it first retrieves the recorded decisions, the running projects and the latest changes, and carries on from where the previous one stopped. For a hedgehog, that is the difference between a choice you made and a choice you watch over every week. So not a promise, but the way we work every day.
See the four plans at jarvis/pricing NL. Through the waiting list NL you only pass on your preferred plan, with no obligation. That does not create an account, an order or a payment obligation. We discuss business custom work first.
The skills around it
reg. H.007The hedgehog looks inward. These skills from the same library of 100 look outward, or explain how the format itself works.
The analysis alongside it
looking outwardChoosing a hedgehog without knowing your surroundings is gambling. These two map that environment.
SWOT AnalysisStrengths, weaknesses, opportunities and threats in one place, the classic check alongside your hedgehog.SKILL PESTEL AnalystThe forces outside your business, from politics to technology, that can make or break your hedgehog.SKILL NLThe basics of skills
the formatNew to skills? These three guides explain the format, from understanding it to building your own.
What are Claude skillsThe full story behind the file format you are downloading here.DOC NL Installing Claude skillsStep by step installation in Claude Code, Claude.ai and Codex.DOC NL Writing SKILL.mdBuild a skill yourself following the open standard.DOC NLLooking further
the libraryWhere this skill comes from and what else is ready to use.
The whole skill libraryAll 100 free skills in one place, sorted by topic.HUB NL AI and automationThe service behind it: from standalone skills to working automation in your business.SRVLearning and doing
the peopleIf your team wants to get started with this themselves.
AI trainingYour team learns to work with skills and AI workflows themselves.SRV NL Knowledge baseArticles on SEO, AI and online visibility, searchable.DOCFrequently asked questions
What does the AI Hedgehog Concept Coach skill cost?
Nothing. It is free, falls under the MIT licence, and asks for no account and no email address. You download a 3.8 KB zip containing a folder and a single file, SKILL.md, and that is the complete skill. There is no paid version and no sales email afterwards.
Does this skill also work in Codex, Cursor or Gemini CLI?
Yes. SKILL.md has been an open standard since December 2025, so the same file also works in Codex, Cursor, Gemini CLI and other tools that follow the standard. In Codex you unzip it into .agents/skills/ in your project, or into ~/.agents/skills/ for all your projects; Codex has supported SKILL.md directly since the open standard of December 2025. Pasting the contents of SKILL.md into your AGENTS.md still works too. The instructions are readable text, so any AI assistant that accepts instruction files can work with it.
What is the Hedgehog Concept in short?
A framework by Jim Collins from Good to Great (2001). It looks for the intersection of three circles: where you can be the best, where your deep passion lies, and what drives your economic engine. That intersection is your hedgehog, the one core idea you put your energy into. Everything outside it you let go. The name comes from an essay by Isaiah Berlin: the fox knows many things, the hedgehog knows one big thing.
Does the skill fill in my hedgehog itself if I give vague answers?
No, and that is a hard rule in the file. Vague or broad answers get actively rejected and asked again, and there is no synthesis without complete input on all three circles. Circle 1, moreover, is about what you can genuinely do, not about wishful thinking. Better a conversation that takes longer than a hedgehog that does not hold up.
What is an economic denominator?
The single metric you steer by: profit per project, revenue per client, margin per hour. Collins states that every great business leader can name one such denominator, not ten. You choose it with questions like which denominator you would double to change everything, and which product or service generates the most cash with the least effort.
Who is this skill for?
For business owners with too many projects or services who need to choose, and for people looking for their career direction. Those two groups sit literally as triggers in the file. If you recognise yourself in sentences like I am doing too much or I need to choose, this is the framework that forces that choice instead of putting it off.
What is in the download?
A 3.8 KB zip with a folder, ai-hedgehog-concept-coach, containing the file SKILL.md: 1,267 words of instruction with the four-step conversation structure, the questions per circle, the fixed output format, two worked examples, five hard rules and three source citations to Collins and Berlin.
Get found first, then choose
A sharp hedgehog changes little if nobody can find it. Once you have used this skill to choose one core focus, the next question is whether your site gets found on exactly that subject by the clients you are looking for. The free SEO scan shows in a few seconds where your site stands. The guide which strategy model when NL shows how this model relates to the others. And if you want to talk further about what else AI can do for your business, from standalone skills to full automation, we simply do that in a conversation.