The AI Effectuation Coach skill for Claude
You describe your situation, however rough, and Claude thinks it through with you the way expert entrepreneurs think: not from a plan you do not yet have, but from what already exists. This skill walks you through Saras Sarasvathy's five effectuation principles, from who you are and what you can afford to lose to who you will approach this month, and delivers a starting profile with experiments for this month. No business plan, no forecasts, no starting capital needed. That is not a shortcoming, that is the method.
the lines above come from the zip on this page · SKILL.md is 7,603 bytes
Situation in, starting profile out
reg. E.001This is the example given in the SKILL.md itself (in Dutch), shown here translated and shortened: an electrician who wants to do something with charging points. No business plan, no marketing budget, no team. Just enough to begin, because the coach works with what is there.
What the AI Effectuation Coach is
The AI Effectuation Coach is a free skill from our library of 100 skills. A skill is an instruction file, SKILL.md, that gives an AI assistant a fixed way of working for one task; you can read the background to that in what are Claude skills NL. This one contains 1,186 words of instruction that make Claude think according to Saras Sarasvathy's Effectuation framework: the researched way of thinking of expert entrepreneurs in markets where forecasting is impossible. It states explicitly that this is not a brainstorming trick, and it behaves that way too: questions first, advice only afterwards.
The problem the skill solves is the endless run-up phase. You want to start something, so you go and plan: market research, a business plan, financing, and maybe your first client in six months. Effectuation reverses that order. You start with what you already have, you decide in advance what you are prepared to lose at most, and from that limit you take small steps that genuinely teach you something. Here that becomes concrete: it takes stock of your resources, draws your loss limit, turns your expected setback into a plan and ends with the names of people you will approach this month.
It is written for anyone stuck between wanting to and starting: founders, sole traders and SME owners in an uncertain market, people changing jobs or careers who want something of their own, and entrepreneurs where something went wrong and who do not know how to carry on. It belongs to the AI and automation service and, like the rest of the library, is free online, with no account and no sales email afterwards.
One thing you should know beforehand: the coach is strict about its own method. If you want to skip a principle, it says so honestly instead of accepting it, because according to the file effectuation only works if you touch all five principles at least once.
Thinking from resources rather than goals
The classic advice for starting out is causal: pick a goal, make a plan, gather the resources, execute. That works fine in a predictable market. But anyone starting something new is, almost by definition, working in a market that cannot be predicted, and there the plan becomes a set of untested assumptions you can only test once the money has already been spent. Effectuation is the reverse: you start from your resources and let the goal sharpen along the way through what you learn and who wants to join in.
Each principle is therefore reduced to one question. Who are you, what do you know, who do you know? What can you afford to lose without it hurting you? What do you do when things go wrong? Who do you invite in? And where is your steering wheel? Anyone who answers those five questions in turn has no forecast, but does have a starting point, and that starting point is yours: it consists of things you already hold in your hands today.
Notice what is not said here. Effectuation does not say planning is foolish or that you should just try things at random. It says there are two kinds of situations: those where you can predict the future, and those where you can only influence it. This is the method for the second kind, and making that distinction is part of the fifth principle: the skill explicitly asks you what you are deliberately no longer trying to predict.
In the figure below are the five principles as the skill applies them, each as a diff: the reflex that goes out, the way of thinking that comes back in its place. The question on the mono line is the question the coach asks you for each principle.
Five reflexes reversed
reg. E.002The core of the method, taken directly from the five principles in the SKILL.md. Each principle reverses a learnt reflex. The red line is how most people start, the green line is how the coach gets you thinking.
What is really in the SKILL.md
A skill is only as good as its instructions, so we simply describe them here. The file itself is written in Dutch. It opens with frontmatter that decides when Claude picks the skill up: on the term effectuation or Sarasvathy itself, but above all on the Dutch phrases the framework is meant for, translated here: I want to start something but do not know how. How do I start without money. No business plan. Start with what I have. MVP without market research. Sole traders and SME owners starting in an uncertain market, and people stuck making plans instead of doing, are also named as triggers. The licence is MIT and the version is 1.0.0. Anyone who wants to learn to build a file like this themselves can find the full explanation in writing SKILL.md NL.
The working method is tightly defined. It runs through the five principles in fixed order on your situation. For each principle it asks two to four short questions, summarises the essence and gives a concrete follow-up action you can take this week. At the end it delivers five things: an effectuation profile of your starting point with your resources, network and loss limit, three to five experiments you can start this month, a list of potential Crazy Quilt partners to approach, a Lemonade plan for the most likely setback, and a short summary in plain language that you can share with a potential partner.
What stands out is how much of the file is about tone. The coach writes to you directly, never formally. No English marketing terms. Short sentences alternate with slightly longer ones. Questions come before advice. And the file bans itself from the one-liners that have already done the rounds on LinkedIn fifty times over. Anyone who has ever been handed a generic step plan by an AI recognises why these rules are in there: the shape of the answer decides whether you actually do anything with it.
At the close come the limits. No business plan comes out of it, because that is not part of effectuation. No revenue or market forecasts, because the whole framework is about working without forecasts. No generic list lifted from a summary of a popular podcast. And never the words game changer, seamless or effortless. More on that in section 04, because those limits are half the value.
Six sections, fixed order
reg. E.003Every answer from the coach follows the same six sections, in the same order, so you always end up with something usable. The first five follow the principles, the sixth is the shareable end result. The mono lines say what each section delivers.
Where the method comes from
This is not management-book wisdom but academic research, and the SKILL.md names its sources. Saras Sarasvathy, of the Darden School of Business at the University of Virginia, published the framework in 2001 in the Academy of Management Review, under the title Causation and Effectuation: Toward a Theoretical Shift from Economic Inevitability to Entrepreneurial Contingency. It was based on a series of think-aloud experiments with 27 expert entrepreneurs, each with at least 15 years of experience and at least one initial public offering to their name. They were given the same entrepreneurial problems, and their thinking turned out to follow a pattern that runs against what business schools teach.
The method was later worked out in the book Effectuation: Elements of Entrepreneurial Expertise from 2008, and according to the file is taught at, among others, Babson, MIT, Darden and TU Delft. As further sources the file names the Society for Effectual Action at effectuation.org and the TU Delft material on effectuation and the entrepreneurial mindset. You can read up on that without the skill: what the skill adds is applying the principles to your own situation instead of just explaining them.
Effectuation is not alone in how it handles uncertainty. The Antifragile Thinker skill looks at the same question through Taleb's lens: how do you set something up so that it grows stronger from shocks instead of breaking from them. That sits nicely alongside the Lemonade principle, which treats setbacks as fuel. And anyone who wants to sharpen their offer after the starting profile can turn to the validation skills further along the chain.
Even without installing the skill you can test your own plan with the five questions: what do I already have, what can I afford to lose, what do I do when things go wrong, who genuinely wants to join in, and where is my steering wheel.
What the coach refuses
reg. E.004Under the heading What I do not do, the SKILL.md contains four explicit refusals, plus a rule of honesty about skipping principles. Those limits are half the value: a coach that does whatever you ask is an echo chamber. Below is every rule as a request and a response.
Installing in Claude Code, Claude.ai or Codex
The zip contains one folder, ai-effectuation-coach, with the SKILL.md inside it. Installing means 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. You are not downloading a Claude file but a working instruction that any modern AI assistant can read. The full guide per environment is at installing Claude skills NL.
- Unzip it into
~/.claude/skills/(or.claude/skills/in your project). - Claude recognises the skill on its own as soon as you start talking about starting without a plan or capital.
- You can also call it directly, with
/ai-effectuation-coach.
- Go to Customise, 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 repo. - Paste the contents of SKILL.md into it, or place SKILL.md alongside it as a separate file and refer to it from
AGENTS.md. - Codex reads that along with every session.
After that, using it is simple: describe your situation in a few sentences, like the examples the file itself gives. The file is written in Dutch, so those examples are in Dutch; translated, they read: I am about to start as a gardener, but I do not have clients yet. I have an idea for a SaaS but no developers. I want to quit my job and start something of my own. My product is not working and I do not know what I am doing wrong. You do not need a business plan; that is the whole point of the method. If you are new to this kind of file, the knowledge base has the broader explanation of working with AI.
When to use it and when not to
It is at its strongest in the situations the file points it at: you have an idea but no plan, no money or no team. The market is so uncertain that market research gives no answer. You want to start without first doing a round of investors. You are changing jobs or careers and want something of your own. Something went wrong and you do not know how to carry on. Or you are looking for a form of partnership to build faster. In all those cases the question is not what is the perfect plan, but what is the very next step I can take today, and that is what this framework is built for.
There are also situations where you are better off leaving it aside. If you have a validated offer and a predictable market, classic planning is simply more efficient: effectuation is for uncertainty, not for everything. If a formal document needs to be produced for a bank or grant provider, this skill will not help you, because it does not write a business plan; what it can do is build the real experience such a document can later lean on. And if you want to test whether your offer is right rather than how you start, use the validation skills alongside it: the Business Model Canvas Coach skill for the whole model, the Lean Canvas Strategist skill for the risk-driven variant, and the Value Proposition Canvas skill NL for matching your offer to the client.
The most honest limit lies in the nature of the tool. It structures your thinking and makes your first steps concrete, but the doing is still down to you. That sounds obvious, until you notice how many plans stay in the drawer. The names on the Crazy Quilt list actually have to be called, the experiment actually has to run, and the loss limit only works if you genuinely stick to it. A framework for thinking is no substitute for the week of work that follows it.
Run it yourself or have it run
reg. E.005This skill is the free do-it-yourself version of work we also deliver as a service. It stays complete and without a catch. But be clear about what a skill is: it teaches your AI how to do something, while every new session starts empty. So a skill is neither the engine nor the memory. You prompt, you supply the context again every time, you check the result. Anyone who wants it differently has two follow-up steps: hand off the engine, or sort out the memory.
where you are now The skill: you are the engine You run the AI Effectuation Coach yourself in Claude, Codex or Cursor. Costs nothing, works today, and you keep it fully in your own hands: no trial period, no locked-off parts. The limit is your own time: it only happens when you prompt, and you lose last month's loss limit and partner list in a new session.
have it prepared The AI employee: it is ready without you prompting This same kind of thinking and preparation work, but as a service: an AI employee set up for your business that has its work ready without you having to sit down with Claude yourself. Control stays with you, because output stays a draft until a person approves it. We deliver this through Mansotti, the company that trades as TheSEO, which builds three fixed employees: the Quote employee, the Sales employee and the Reporting employee.
everything from one source Jarvis: all your AIs work from the same company knowledge A skill teaches the AI something; in the brain it stays. If you want all your AIs working from the same company knowledge: 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 over. For this skill that means: your resources, loss limit and partner list stay saved and grow with you. What that delivers in practice is at Jarvis itself.
What Jarvis delivers in practice
reg. E.006Rung 3 deserves more than a paragraph, because continuity is exactly what makes the difference when starting out. This is not a one-off session: your loss limit shifts, your partner list grows and every experiment produces a lesson the next session needs to know. Jarvis is the organisation brain that remembers this, divides the work and keeps track of what happened. Here is what that looks like at the moment you notice it: the start of a new session.
We have been working this way ourselves for months. Every agent session, every task and every decision is logged in it and can be read back. A new session therefore does not start blank: it first pulls up the decisions on record, the projects in progress and the latest changes, and carries on from where the last one stopped. So not a promise, but the way of working we sit in ourselves every day.
See the four plans at jarvis/prijzen NL. Through the waiting list NL you only pass on your preferred plan, without obligation. That does not yet create an account, an order or a payment obligation. We discuss business custom work first.
The skills around it
reg. E.007Starting never stands on its own: after the first experiment you will want to validate your offer and sharpen your model. These skills from the same library of 100 each take on a different part of that chain.
Validating the model
after the first experimentEffectuation gets you moving. These two test what emerges along the way.
Business Model Canvas CoachTurns what you discover along the way into the nine building blocks of a complete model.SKILL Lean Canvas StrategistThe risk-driven variant: map the biggest uncertainties first.SKILLOffer and uncertainty
getting sharperFor the offer itself and for the setback that comes anyway.
Value Proposition CanvasMatches your offer to what the client actually wants done.SKILL NL Antifragile ThinkerThe same handling of uncertainty as Lemonade, through Taleb's lens: growing stronger from shocks.SKILLLooking further
the contextWhere this skill comes from and what else there is.
The whole skill libraryAll 100 free skills in one place, sorted by topic.HUB NL AI and automationThe service behind it: from individual skills to working automation in your business.SRV Knowledge baseArticles on SEO, AI and online visibility, searchable.DOCLearning to work with AI yourself
the skillFor anyone who wants to bring this kind of work into the team structurally.
AI trainingYour team learns to use skills and build workflows itself.SRV NL What are Claude skillsThe foundation: how a SKILL.md works and why the format is so powerful.DOC NL Writing SKILL.mdBuild a skill yourself for your own way of working.DOC NLFrequently asked questions
What does the AI Effectuation Coach skill cost?
Nothing. The skill is free, falls under the MIT licence, and you do not have to create an account or leave an email address. You download a 3.6 KB zip containing one folder and a single file, SKILL.md, and that is the complete skill. There is no paid version and no sales email follows.
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 plain readable text, so any AI assistant that accepts instruction files can work with it.
What exactly is effectuation?
Effectuation is the way of thinking of experienced entrepreneurs in uncertain markets, described by researcher Saras Sarasvathy in 2001 in the Academy of Management Review. The research is based on think-aloud experiments with 27 expert entrepreneurs with at least 15 years of experience and at least one initial public offering. Rather than picking a goal first and then looking for the resources, they start from their resources: who they are, what they know and who they know. The skill sums that up in five principles and applies them to your situation.
Do I need a business plan to get started?
No, and that is exactly the point of the method. You can start with a rough situation in a couple of sentences, without a plan, capital or team. The skill states outright that it will not write you a business plan, because that is not part of effectuation. What you do get is a starting profile, a loss limit, experiments and a list of people to approach.
Can I skip a principle?
You can ask, but the skill will then say honestly that it disagrees rather than silently accepting it. According to the file, effectuation only works if you touch all five principles at least once. The principle you want to skip, such as the question of what you are prepared to lose, is usually the one you need most.
What does a session with the coach actually deliver?
Five things, as the file puts it: an effectuation profile of your starting point with your resources, network and loss limit, three to five concrete experiments you can start this month, a list of potential partners to approach, a plan for the most likely setback, and a short summary in plain language you can share with a potential partner. That summary is a maximum of eight sentences, with no jargon and no English terms.
Does the skill forecast my revenue or market size?
No. The file is explicit about it: the coach forecasts no revenue and no market size, because the whole framework is about working without forecasts. Instead it looks with you at what you can influence today, what you want to lose at most, and which experiment you can run this week to genuinely learn something.
Starting with what you already have
Anyone who starts with what already exists almost always already holds one resource in hand: a website. The question from Bird in Hand is then not whether it exists, but whether it does anything. The free SEO scan shows within seconds where your site stands, and depending on what comes out, that is either a resource or an affordable loss. Looking for more tools to start without a plan? The rest is in the library of 100 free skills NL.