llms-txt-checker

name	llms-txt-checker
description	Validates llms.txt files for AI agent discoverability. Checks structure, format, required fields, and best practices per ai-visibility.org.uk specification. Use when auditing or validating llms.txt files.

llms.txt Checker Skill

Validates llms.txt files against the specification.

When to Use This Skill

• Validate existing llms.txt
• Check website has proper llms.txt
• Audit structure and content

Required Elements

Element	Format
H1 Title	# Project Name
Blockquote	> Brief summary
Absolute URLs	https://...

Validation Checks

• H1 heading present
• Blockquote present
• Description present
• All URLs absolute
• No marketing hyperbole
• File under 10KB

Usage

# Check domain
python3 scripts/llms_txt_checker.py example.com

# Check specific file
python3 scripts/llms_txt_checker.py --file /path/to/llms.txt