claude-legal-skill MCP — Cas d'usage, Installer & Démo en direct

Pourquoi l'utiliser

Fonctionnalités clés

CUAD-based risk detection across 41 contract clause types
Market benchmarks (typical ranges for cap on liability, indemnity, etc.)
Lawyer-ready redlines in tracked-changes markdown
Risk heatmap per contract
Side-by-side comparison across multiple vendor drafts
Cross-agent compatible

Démo en direct

Aperçu en pratique

claude-legal-skill.replay ▶ prêt

0/0

Installer

Choisissez votre client

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "claude-legal-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/evolsb/claude-legal-skill",
        "~/.claude/skills/claude-legal-skill"
      ],
      "_inferred": true
    }
  }
}

Ouvrez Claude Desktop → Settings → Developer → Edit Config. Redémarrez après avoir enregistré.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "claude-legal-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/evolsb/claude-legal-skill",
        "~/.claude/skills/claude-legal-skill"
      ],
      "_inferred": true
    }
  }
}

Cursor utilise le même schéma mcpServers que Claude Desktop. La config projet l'emporte sur la globale.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "claude-legal-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/evolsb/claude-legal-skill",
        "~/.claude/skills/claude-legal-skill"
      ],
      "_inferred": true
    }
  }
}

Cliquez sur l'icône MCP Servers dans la barre latérale Cline, puis "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "claude-legal-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/evolsb/claude-legal-skill",
        "~/.claude/skills/claude-legal-skill"
      ],
      "_inferred": true
    }
  }
}

Même format que Claude Desktop. Redémarrez Windsurf pour appliquer.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "claude-legal-skill",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/evolsb/claude-legal-skill",
        "~/.claude/skills/claude-legal-skill"
      ]
    }
  ]
}

Continue utilise un tableau d'objets serveur plutôt qu'une map.

~/.config/zed/settings.json

{
  "context_servers": {
    "claude-legal-skill": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/evolsb/claude-legal-skill",
          "~/.claude/skills/claude-legal-skill"
        ]
      }
    }
  }
}

Ajoutez dans context_servers. Zed recharge à chaud à la sauvegarde.

claude mcp add claude-legal-skill -- git clone https://github.com/evolsb/claude-legal-skill ~/.claude/skills/claude-legal-skill

Une seule ligne. Vérifiez avec claude mcp list. Supprimez avec claude mcp remove.

Cas d'usage

Usages concrets : claude-legal-skill

How to triage a vendor MSA before sending to counsel

👤 Founders and ops leaders reviewing vendor contracts ⏱ ~45 min intermediate

Quand l'utiliser : Vendor sent an MSA, you need to know what's unusual before your $600/hr lawyer looks at it.

Prérequis

Skill installed — git clone https://github.com/evolsb/claude-legal-skill ~/.claude/skills/claude-legal-skill
The contract as markdown or PDF — Skill extracts text; best with machine-readable PDFs

Déroulement

Extract and classify clauses

Review vendor-msa.pdf with claude-legal-skill. Classify all clauses and flag anything outside market norms.✓ Copié

→ Per-clause classification + deviation flags
Generate redlines

For each flagged clause, produce a tracked-changes redline with rationale.✓ Copié

→ Markdown with strikethrough + bold for changes
Produce a counsel brief

Summarize the top 5 issues in a 1-page brief for my lawyer.✓ Copié

→ 1-pager with issue, risk, proposed fix

Résultat : A prioritized issues list + redlines that save billable hours.

Pièges

Treating output as legal advice — This is a triage tool. Anything material goes to licensed counsel.
Benchmark ranges are US-centric — Tell the skill your governing law; ranges shift by jurisdiction

Compare two vendor drafts side-by-side

👤 Procurement leads evaluating competing vendors ⏱ ~30 min intermediate

Quand l'utiliser : Two vendors for the same service sent you their paper; you want to see which is friendlier.

Déroulement

Load both

Compare vendor-A.pdf and vendor-B.pdf. For each of: liability cap, IP assignment, termination, payment terms — show both and call the winner.✓ Copié

→ Side-by-side table per clause

Résultat : A leverage document for negotiation.

Pièges

Picking a winner on every clause without context — Ask Claude to call 'similar' explicitly when the diff is immaterial

Review an NDA in 5 minutes

👤 Founders signing lots of NDAs ⏱ ~5 min beginner

Quand l'utiliser : Someone sent an NDA; it's boilerplate-ish but you want to be sure.

Déroulement

Quick scan

Quick NDA review — flag only: non-compete, unilateral return/destruction, jurisdiction weirdness, and term > 3 years.✓ Copié

→ Short list, green if clean

Résultat : A 5-minute clean/unclean verdict with specific asks.

Combinaisons

Associez-le à d'autres MCPs pour un effet X10

claude-legal-skill + startup-skill

Startup skill sizes vendor choice, legal skill reviews the paper

Choose between vendor A and B with startup-skill, then legal-review both with claude-legal-skill.✓ Copié

Outils

Ce que ce MCP expose

Outil	Entrées	Quand appeler	Coût
Clause classification	contract_path: str	First pass on any contract	Claude tokens (high for long contracts)
Risk flagging	classified contract, jurisdiction?	After classification	Claude tokens
Redline generation	flags	When you intend to push back	Claude tokens
Comparison	contracts: list	Multi-vendor evals	Claude tokens
Counsel brief	flags	Before handing off to counsel	Claude tokens

Coût et limites

Coût d'exécution

Quota d'API: None
Tokens par appel: 20-100k tokens per contract (long docs are expensive)
Monétaire: Free (consumes Claude subscription)
Astuce: Chunk long contracts by section; don't re-analyze unchanged sections on each pass.

Sécurité

Permissions, secrets, portée

Stockage des identifiants : No credentials. Contracts stay local except for Claude inference.

Sortie de données : Contract text is sent to Anthropic for inference. Confidential contracts should use a workspace with data retention disabled.

Not a substitute for licensed legal counsel. Do not sign anything material based solely on this output.
CUAD benchmarks are US-skewed. Non-US jurisdictions need explicit framing.

Dépannage

Erreurs courantes et correctifs

PDF text extraction garbled

Convert to markdown first with a tool like marker or pandoc; image-based PDFs need OCR.

Redlines touch boilerplate the other side will reject

Ask skill to distinguish 'must-have' from 'nice-to-have' and drop the latter

Alternatives

claude-legal-skill vs autres

Alternative	Quand l'utiliser	Compromis
Harvey / Ironclad	Enterprise legal teams with compliance requirements	Paid, not in Claude Code

Plus

Ressources

📖 Lire le README officiel sur GitHub

🐙 Voir les issues ouvertes

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