Claude can draft, summarize, analyze. With a custom skill, it does it exactly the way you want, every single time, without you having to rephrase.
Steps
Video + Resources + Exercises
No credit card
Track level
A Claude skill turns general-purpose AI into a specialized tool. Instead of restating your need in every conversation, you codify your instructions once : the domain context, the expected output format, the ethical constraints, the sources to favor, the mistakes to avoid. Claude applies these rules automatically, every time.
For a lawyer, the difference is concrete. A well-written skill turns Claude into an assistant that knows your field, your way of working and your quality standards. Drafting employment-law submissions with the relevant collective agreements. Analyzing commercial contracts according to your usual reading grid. Preparing road-criminal-law consultations with your court of appeal's case law. The skill doesn't replace your expertise. It replicates it inside the tool.
This track teaches you to create, test, refine and share your own skills. From discovering Claude Cowork through to deploying a working skill you use every day.
One framing video, two technical resources, four hands-on exercises.
The starting point. Claude Cowork is Anthropic's work environment that lets you use Claude with files, projects and custom skills. This video covers the ins and outs of the tool : what it does, what it doesn't, how it fits into a legal workflow.
A skill is built on a SKILL.md file : a structured text document that holds the permanent instructions given to Claude. This resource breaks down the anatomy of a skill, best practices for writing one, and concrete examples tailored to legal practice.
Key difference : a prompt is disposable, a skill is permanent, reusable, shareable. For a firm, the value is measured in time saved on rephrasing and in the consistent quality of outputs.
Before writing a skill, you need to identify the right use case. Which process do you repeat several times a week ? Which task takes time even though the method is always the same ? Which analysis could be sped up if Claude already knew your reading grid ?
This exercise guides you in choosing a precise, realistic, high-impact use case. A skill that's too broad will be mediocre. A skill that's too narrow will be useless. The goal is to find the right scope.
Writing the instructions file. You structure Claude's role, the domain context, the processing guidelines, the output format, the constraints and the guardrails. Every section of the SKILL.md has a direct impact on the quality of the answers.
Writing a legal skill involves specific choices : should you embed code articles as references ? Document templates ? Instructions to systematically verify sources ? Confidentiality constraints ? Everything comes down to the precision of the instructions.
Your skill exists on paper. Now you need to make sure it works. You load the SKILL.md into Claude Cowork and confront it with real cases drawn from your practice. The first outputs reveal the imprecisions, ambiguities and gaps in your instructions.
Testing a skill goes beyond checking that it "works". The point is to verify that the output matches exactly what you expect, with the rigor you demand of a colleague.
Iteration. Test results feed corrections : clarifying a guideline, adding an example, rephrasing a constraint. A good skill is built over several passes. This step formalizes the improvement process and gives you a repeatable method for any future skill.
A skill that works for you can serve others. This step covers :
Each saves several hours a week when it's well built. To give you a sense of the scope.
Claude reads the contract, identifies the at-risk clauses according to your grid (liability limitation, intellectual property, termination, penalties), and produces a structured note with recommendations.
You enter the facts, Claude identifies the applicable texts, the relevant case law, the arguments for and against, and produces a structured answer outline.
From a document template you provide, Claude adapts the structure to each new matter, respecting your style, your plan and your usual phrasings.
Claude synthesizes the week's legislative and case-law developments in your field, according to the format and level of detail you have defined.
Several times a week, and you restate the same instructions in every conversation. The skill puts an end to that wasted time and guarantees consistent outputs.
You want to standardize AI usage across colleagues. A shared skill guarantees consistent outputs whoever the user is.
You're looking to give teams framed AI tools that respect your internal constraints (confidentiality, sources, format).
Recommended prerequisite : having completed "AI Fundamentals" or equivalent. Familiarity with Claude (free or Pro) is required.
Des Avocats et juristes qui sont passés par nos formations. Pas de filtre, pas de réécriture, leurs mots à eux.
100 % de nos apprenants sont satisfaits
Évaluations post-formation
Nos formateurs construisent des outils IA juridiques tous les jours pour de vrais cabinets. Vous êtes formé par celles et ceux qui pratiquent.
Président · Chief AI Officer
11 ans d'innovation dans le secteur juridique. Fondateur de La Fabrique Juridique, créateur de Supernovia.io, ex-Directeur Marketing Jarvis Legal. A accompagné des dizaines de cabinets et legaltechs dans leur croissance.
Alexis Deborde
Co-fondateur
Juriste devenu entrepreneur, pionnier de la legaltech française. Fondateur de Leganov, co-fondateur d'Hercule, créateur de Smartpreuve. Classé parmi les « 40 qui font le futur du droit » par l'Institut Choiseul.
Joachim Darmalingon
CTO
7 ans en développement d'applications SaaS. Ex-développeur Legal Pilot, Lead Dev Supernovia.io, créateur de Lexiwork et KaribNav. Ingénieur MIAGE, spécialiste des architectures scalables.
Benjamin Barbé
Infra & Cybersécurité
Tech Lead et Solution Architect, fondateur de Techspike, créateur de la Zevra Factory. Spécialiste des migrations complexes, architectures distribuées et cybersécurité juridique (RGPD/NIS2, ANSSI).
Gilles Monnier
Chef de Projet IT
Le chef d'orchestre qui transforme la vision en livraison. Il assure le lien entre les exigences métier des clients et l'exécution technique. Respect des délais, conformité, intégration.
Pierre-Louis Roquet
Avocat · Animateur Campus
Avocat au barreau de Lyon, co-fondateur de SmartLawyer. Anime la communauté Zevra Campus et intervient sur les formations Avocats. Un Avocat qui forme des Avocats.
Free · advanced
When a skill is no longer enough, the next step is a real application : users, database, payment.
Discover →Residential · 3 days
Immersive work on your skills and tools, with direct support. Seven participants, accommodation included.
See the Bootcamp →Bespoke
For firms that want to deploy an internal library of shared skills at scale, with support.
See the program →Free Rookies account, no credit card. You walk away with a working skill used every day, and the method to build more.