Legal Skills (Open)

Open-source library of legal AI skills in the Anthropic Skills (SKILL.md) format, runnable by any MCP-compatible client — Claude Code, Claude Cowork, Cursor, ChatGPT, the ThomasMore desktop app. 3,500+ skills across 39 jurisdictions and 200+ practice plugins — from filing-fee calculators and case-law analysis to GDPR DPA review and US securities disclosure. Apache-2.0, contribution-friendly, no lock-in.

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Table of contents

• What this repository is
• What a skill looks like (SKILL.md format)
• Coverage by jurisdiction
• Coverage by practice area
• License
• FAQ
• Related projects

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What this repository is — an open-source legal AI skill library

A legal AI skill is a single Markdown file (SKILL.md) that describes one applied legal task — «calculate the German court fee under the GKG for a civil claim», «analyse this case under FRCP Rule 12(b)(6)», «check this DPA against GDPR Article 28» — in a structured format an AI agent can execute deterministically.

Skills follow the Anthropic Skills convention: YAML frontmatter (machine-readable contract) + Markdown body (the algorithm). Every skill in this repository is grouped into a plugin by jurisdiction and practice area:

{country}/{practice}/skills/{slug}/SKILL.md

Allowed {country} values: any ISO 3166-1 alpha-2 code, plus general (jurisdiction-agnostic) and cross-jurisdiction (multi-country comparative).

There are two ways to use these skills:

1. Locally. Since this repository is open source and every skill follows the Anthropic Skills/plugin format, you can clone it and use the skills locally (as Claude Code skills/plugins).
2. Via the MCP server ThomasMore. Connect any MCP-compatible client to the MCP server mcp.thomasmoreai.com; the orchestrator finds and runs the right skill via its discover and invoke tools. Follow thomasmoreai.com for updates on the MCP server launch.

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What a skill looks like (SKILL.md format)

Real example from eu/data-protection/skills/gdpr-expert/:

---
name: gdpr-expert
title: GDPR Expert
description: GDPR expert for EU privacy compliance. Deep knowledge of General Data Protection Regulation including 99 articles, 7 principles, 6 lawful bases, data subject rights, DPO requirements, DPIA, breach notification, cross-border transfers, and enforcement.
author: GRCEngClub
author_url: https://github.com/GRCEngClub/claude-grc-engineering/tree/main/plugins/frameworks/gdpr/skills/gdpr-expert
license: MIT
version: 0.1.0
execution_mode: open
jurisdiction: eu
practice: data-protection
language: en
---

# Skill title

## When to apply
Triggers, example user prompts, what is out of scope.

## Algorithm
Step-by-step instructions for the orchestrator.

## Output contract
What the answer must contain — citations, disclaimer, structured fields.

The canonical schema is in schemas/skill-frontmatter.schema.json. See CONTRIBUTING.md for the full walkthrough.

---

Coverage by jurisdiction

39 jurisdictions, sorted by plugin count. Click any code to browse plugins and skills for that jurisdiction.

Jurisdiction	Plugins	Jurisdiction	Plugins
🇺🇸 us/ — United States	25	🇮🇱 il/ — Israel	4
🇩🇪 de/ — Germany	24	🇪🇺 eu/ — European Union	4
🌐 general/ — jurisdiction-agnostic	22	🇨🇭 ch/ — Switzerland	4
🌍 cross-jurisdiction/ — comparative	14	🇦🇹 at/ — Austria	4
🇨🇳 cn/ — China	14	🇦🇺 au/ — Australia	3
🇹🇷 tr/ — Türkiye	8	🇹🇼 tw/ — Taiwan	2
🇬🇧 gb/ — United Kingdom	8	🇷🇺 ru/ — Russia	2
🇪🇸 es/ — Spain	8	🇯🇵 jp/ — Japan	2
🇰🇷 kr/ — South Korea	7	🇦🇷 ar/ — Argentina	2
🇵🇱 pl/ — Poland	6	🇦🇪 ae/ — UAE	2
🇧🇷 br/ — Brazil	6	🇿🇦 za/ — South Africa	1
🇫🇷 fr/ — France	5	🇻🇳 vn/ — Vietnam	1
🇨🇦 ca/ — Canada	5	🇹🇭 th/ — Thailand	1
🇺🇦 ua/ — Ukraine	4	🇸🇦 sa/ — Saudi Arabia	1
🇸🇬 sg/ — Singapore	4	🇳🇬 ng/ — Nigeria	1
🇮🇳 in/ — India	4	🇲🇽 mx/ — Mexico	1
🇱🇺 lu/ — Luxembourg	1	🇮🇹 it/ — Italy	1
🇬🇷 gr/ — Greece	1	🇫🇮 fi/ — Finland	1
🇪🇬 eg/ — Egypt	1	🇨🇲 cm/ — Cameroon	1
🇦🇿 az/ — Azerbaijan	1

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Coverage by practice area

48 practice areas covered across the 39 jurisdictions. Top areas by plugin count:

Practice area	Plugins	Typical skills
Data protection	25	GDPR DPA review, ROPA generation, breach notification, transfer-impact assessments
Litigation	22	Case-law analysis, pleadings drafting, procedural calculators, discovery review
General	19	Cross-practice skills (legal drafting, citation discipline, statute lookup)
Regulatory	18	Compliance checks, regulatory filings, AI governance reviews
Real estate	12	Lease review, title checks, zoning analysis
Contracts	11	Clause review, redlines, template generation
Corporate	10	Cap-table analysis, corporate filings, governance
Tax	8	Tax classification, transfer-pricing review, withholding analysis
Intellectual property	8	Trademark search, copyright analysis, patent landscaping
Arbitration	8	Arbitration-clause design, award analysis, filing-fee calculators
Employment	7	Employee-handbook review, termination checks, wage-and-hour
Cybersecurity	7	DORA, NIS2 and CRA compliance, ICT contract review, incident reporting
Commercial	7	M&A diligence, commercial-contract review
Trusts & estates	6	Will review, probate checks, trust drafting
Personal injury	6	Damages calculation, statute-of-limitations checks
Criminal	6	Sentencing analysis, charge-mapping, plea evaluation

Other covered areas (each with 1–5 plugins): trade, insurance, government-contracts, family, antitrust, life-sciences, healthcare, finance, construction, bankruptcy, administrative, white-collar, sports, social-security, sanctions, immigration, environmental, employee-benefits, constitutional, aviation, transportation, tmt, securities, military, energy, capital-markets, nonprofit, maritime, investment-funds, gaming, entertainment, consumer.

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License

Apache License 2.0. The repository and every contribution to it are Apache-2.0 by default. You can use, modify, distribute, and run these skills commercially — only attribution is required.

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FAQ

Can I use these skills with Claude, Cursor, ChatGPT, or other clients?

Yes. The skills are delivered over the Model Context Protocol (MCP), which is supported by Claude Code, Claude Desktop, Cursor, ChatGPT (via MCP plugins), the ThomasMore desktop app, and any other MCP-compatible client. Point your client at https://mcp.thomasmoreai.com/ and the orchestrator handles discovery and routing. Follow thomasmoreai.com for updates on the MCP server launch.

Are these skills production-ready?

The repository is community-curated. Every skill carries an explicit version, author, and license, and is reviewed against the schema before merge. Output of every skill includes a built-in disclaimer that the answer is informational and does not replace qualified legal advice. Treat the library as a second pair of eyes, not as a substitute for a lawyer admitted in the relevant jurisdiction.

Why not just write a prompt myself?

Skills are versioned, testable, and citation-disciplined: each SKILL.md specifies which statutes, regulations, or cases it relies on (and which edition / date). Ad-hoc prompts drift, hallucinate citations, and aren't reproducible across team members. Skills make legal AI workflows auditable — important for compliance, conflicts checks, and post-mortems.

How do I add a skill for my jurisdiction?

If your country code (ISO 3166-1 alpha-2) is missing, just create the folder — e.g. pt/contracts/skills/... — and open a PR. See CONTRIBUTING.md.

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Related projects

• Anthropic Skills — the underlying SKILL.md format.
• Model Context Protocol — the open protocol every MCP-compatible client speaks.
• anthropics/claude-for-legal — Anthropic's official suite of legal plugins.
• travisvn/awesome-claude-skills — curated list of Claude Skills resources.
• Vaquill-AI/awesome-legaltech — open-source legal-tech catalogue.
• wong2/awesome-mcp-servers — curated list of MCP servers.

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Maintained by ThomasMoreAI. Issues and pull requests welcome.