How do I install the Lex skill?

Run npx skillmds@latest add antigravity/lex in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

SkillMD's automated safety review verdict for this skill is PASS. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Lex?

This skill is tagged as working with Claude Code, Cursor, OpenAI Codex, Gemini, Antigravity. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Antigravity Skills (@antigravity) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Lex by antigravity — Agent Skill

Name: Lex
Rating: 4.2 (5 reviews)
Author: Antigravity Skills

File contents

LEX: Legal-Entity-X-ref

Overview

LEX is a structured truth engine designed to eliminate legal hallucinations by grounding agents in verified government references and legislation across 29+ jurisdictions. It provides deterministic context for business formation, employment, and contract drafting.

When to Use This Skill

Use when you need to cross-reference or compare legal requirements between different territories, such as verifying the compliance gap between an EU SARL and a US LLC.
Use when working with foundational business or employment documents that require specific, jurisdiction-compliant clauses to be inserted into a professional scaffold.
Use when the user asks about the specific regulatory nuances, formation steps, or "truth-based" definitions of legal entities within the 29 supported jurisdictions (USA, Canada, and the EU).

How It Works

Step 1: Identify Jurisdiction

Before drafting, determine if the user's entity or contract target is in the USA, Canada, or the EU.

Step 2: Search & Fetch Context

Use the CLI shortcuts to find the relevant legal patterns and templates.

Run lex search <query> to find matching templates.
Run lex get <path> to read the granular metadata and requirements.

Step 3: Scaffold Drafting

Generate foundation-level documents using lex draft <description>. This ensures that all drafts include the mandatory AI-generated content disclaimer.

Step 4: Verify Authority

Always include a "Verified Sources" section in your output by running lex verify, which fetches official government links for the retrieved context.

Examples

Example 1: Comparing Employment Laws

# Get the workforce template to compare US vs EU notice periods
lex get templates/02_employment_workforce.md

Example 2: Drafting a Czech Contract

# Create a house sale contract scaffold in Czech language
lex draft "Czech house sale contract"

Best Practices

✅ Trust but Verify: Always include the links provided by lex verify in your output.
✅ Table Formatting: Use tables when comparing results across multiple jurisdictions.
❌ No Guessing: If a jurisdiction is outside the US/EU/CA scope, state that it is outside the LEX "Truth Engine" coverage.
❌ No Anecdotal Advice: Stick strictly to the findings in the templates or verified government domains.

Common Pitfalls

Problem: Legal hallucination regarding specific EU notice periods. Solution: Run lex get templates/02_employment_workforce.md to see the restrictive covenant comparison table.

Related Skills

@employment-contract-templates - For more specific HR policy phrasing.
@legal-advisor - For general legal framework architecture.
@security-auditor - For reviewing the final repository security.

Limitations

Use this skill only when the task clearly matches the scope described above.
Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

---name: lexdescription: Grounds AI agents in verified government references and legislation across 29+ jurisdictions for business formation, employment, and contract drafting.---# LEX: Legal-Entity-X-ref## OverviewLEX is a structured truth engine designed to eliminate legal hallucinations by grounding agents in verified government references and legislation across 29+ jurisdictions. It provides deterministic context for business formation, employment, and contract drafting.## When to Use This Skill- Use when you need to cross-reference or compare legal requirements between different territories, such as verifying the compliance gap between an **EU SARL** and a **US LLC**.- Use when working with foundational business or employment documents that require specific, jurisdiction-compliant clauses to be inserted into a professional scaffold.- Use when the user asks about the specific regulatory nuances, formation steps, or "truth-based" definitions of legal entities within the **29 supported jurisdictions** (USA, Canada, and the EU).## How It Works### Step 1: Identify JurisdictionBefore drafting, determine if the user's entity or contract target is in the **USA, Canada, or the EU**.### Step 2: Search & Fetch ContextUse the CLI shortcuts to find the relevant legal patterns and templates.- Run `lex search <query>` to find matching templates.- Run `lex get <path>` to read the granular metadata and requirements.### Step 3: Scaffold DraftingGenerate foundation-level documents using `lex draft <description>`. This ensures that all drafts include the mandatory AI-generated content disclaimer.### Step 4: Verify AuthorityAlways include a "Verified Sources" section in your output by running `lex verify`, which fetches official government links for the retrieved context.## Examples### Example 1: Comparing Employment Laws```bash# Get the workforce template to compare US vs EU notice periodslex get templates/02_employment_workforce.md```### Example 2: Drafting a Czech Contract```bash# Create a house sale contract scaffold in Czech languagelex draft "Czech house sale contract"```## Best Practices- ✅ **Trust but Verify**: Always include the links provided by `lex verify` in your output.- ✅ **Table Formatting**: Use tables when comparing results across multiple jurisdictions.- ❌ **No Guessing**: If a jurisdiction is outside the US/EU/CA scope, state that it is outside the LEX "Truth Engine" coverage.- ❌ **No Anecdotal Advice**: Stick strictly to the findings in the templates or verified government domains.## Common Pitfalls- **Problem:** Legal hallucination regarding specific EU notice periods. **Solution:** Run `lex get templates/02_employment_workforce.md` to see the restrictive covenant comparison table.## Related Skills- `@employment-contract-templates` - For more specific HR policy phrasing.- `@legal-advisor` - For general legal framework architecture.- `@security-auditor` - For reviewing the final repository security.## Limitations- Use this skill only when the task clearly matches the scope described above.- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

Frequently asked questions

Lex