New to Claude Skills? Learn how to install them →

github on GitHub

Create LLMs.txt File

OfficialFree

Generate llms.txt files for LLM navigation.

by github37.7k stars on github/awesome-copilot
1 views
Updated Aug 10, 2026
Get this skill

Free · Opens the source repo

What Create LLMs.txt File does

The Create LLMs.txt File skill enables developers to generate a structured llms.txt file from the repository's structure, adhering to the official llms.txt specification. This file serves as a crucial resource for large language models (LLMs), providing them with high-level guidance on how to navigate the repository and understand its purpose. By following a systematic approach, this skill ensures that the generated llms.txt is both human-readable and optimized for machine consumption.

To utilize this skill, users must first conduct a thorough analysis of their repository. This includes reviewing the llms.txt specification to understand the required format and guidelines, analyzing the repository structure to identify key files and directories, and planning the content that will be included in the llms.txt file. The skill emphasizes the importance of including essential documentation, specifications, and examples that will aid LLMs in comprehending the repository's scope and functionality.

The implementation process is straightforward, guiding users through the creation of the llms.txt file with specific instructions on the required sections and formatting. Users will create a clear H1 header with the project name, followed by an optional blockquote summary, and organized sections for documentation, specifications, examples, and configuration files. This structured approach not only benefits LLMs but also enhances the overall documentation quality of the repository.

This skill is particularly useful for developers who want to improve the accessibility of their projects for AI models, ensuring that the necessary context and guidance are readily available. By generating a compliant and comprehensive llms.txt file, users can facilitate better understanding and interaction with their repositories by both human and machine readers.

When to use it

Use this skill when you need to create an `llms.txt` file to guide LLMs through your repository's structure and content.

When not to use it

This skill may not be suitable for projects that do not require LLM interaction or where the repository structure is simple enough to not necessitate a detailed `llms.txt` file.

What you can build with it

Generating Documentation for a Complex Project

Use this skill to create an llms.txt file for a large repository with multiple documentation files, ensuring LLMs can easily navigate.

Standardizing LLM Guidance Across Repositories

Implement this skill across multiple projects to maintain a consistent approach to LLM documentation and navigation.

Improving AI Model Training Data

Generate an llms.txt file to enhance the training data for AI models by providing clear structure and context for repository content.

How to install Create LLMs.txt File

View source

1. Install with the skills CLI

npx skills add github/awesome-copilot/create-llms --agent claude-code

2. Or install it manually

Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.

Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs

Inside SKILL.md

Written by github

Create LLMs.txt File from Repository Structure

Create a new llms.txt file from scratch in the root of the repository following the official llms.txt specification at https://llmstxt.org/. This file provides high-level guidance to large language models (LLMs) on where to find relevant content for understanding the repository's purpose and specifications.

Primary Directive

Create a comprehensive llms.txt file that serves as an entry point for LLMs to understand and navigate the repository effectively. The file must comply with the llms.txt specification and be optimized for LLM consumption while remaining human-readable.

Analysis and Planning Phase

Before creating the llms.txt file, you must complete a thorough analysis:

Step 1: Review llms.txt Specification

  • Review the official specification at https://llmstxt.org/ to ensure full compliance
  • Understand the required format structure and guidelines
  • Note the specific markdown structure requirements

Step 2: Repository Structure Analysis

  • Examine the complete repository structure using appropriate tools
  • Identify the primary purpose and scope of the repository
  • Catalog all important directories and their purposes
  • List key files that would be valuable for LLM understanding

Step 3: Content Discovery

  • Identify README files and their locations
  • Find documentation files (.md files in /docs/, /spec/, etc.)
  • Locate specification files and their purposes
  • Discover configuration files and their relevance
  • Find example files and code samples
  • Identify any existing documentation structure

Step 4: Create Implementation Plan

Based on your analysis, create a structured plan that includes:

  • Repository purpose and scope summary
  • Priority-ordered list of essential files for LLM understanding
  • Secondary files that provide additional context
  • Organizational structure for the llms.txt file

Implementation Requirements

Format Compliance

The llms.txt file must follow this exact structure per the specification:

  1. H1 Header: Single line with repository/project name (required)
  2. Blockquote Summary: Brief description in blockquote format (optional but recommended)
  3. Additional Details: Zero or more markdown sections without headings for context
  4. File List Sections: Zero or more H2 sections containing markdown lists of links

Content Requirements

Required Elements

  • Project Name: Clear, descriptive title as H1
  • Summary: Concise blockquote explaining the repository's purpose
  • Key Files: Essential files organized by category (H2 sections)

File Link Format

Each file link must follow: [descriptive-name](relative-url): optional description

Section Organization

Organize files into logical H2 sections such as:

  • Documentation: Core documentation files
  • Specifications: Technical specifications and requirements
  • Examples: Sample code and usage examples
  • Configuration: Setup and configuration files
  • Optional: Secondary files (special meaning - can be skipped for shorter context)

Content Guidelines

Language and Style

  • Use concise, clear, unambiguous language
  • Avoid jargon without explanation
  • Write for both human and LLM readers
  • Be specific and informative in descriptions

File Selection Criteria

Include files that:

  • Explain the repository's purpose and scope
  • Provide essential technical documentation
  • Show usage examples and patterns
  • Define interfaces and specifications
  • Contain configuration and setup instructions

Exclude files that:

  • Are purely implementation details
  • Contain redundant information
  • Are build artifacts or generated content
  • Are not relevant to understanding the project

Execution Steps

Step 1: Repository Analysis

  1. Examine the repository structure completely
  2. Read the main README.md to understand the project
  3. Identify all documentation directories and files
  4. Catalog specification files and their purposes
  5. Find example files and configuration files

Step 2: Content Planning

  1. Determine the primary purpose statement
  2. Write a concise summary for the blockquote
  3. Group identified files into logical categories
  4. Prioritize files by importance for LLM understanding
  5. Create descriptions for each file link

Step 3: File Creation

  1. Create the llms.txt file in the repository root
  2. Follow the exact format specification
  3. Include all required sections
  4. Use proper markdown formatting
  5. Ensure all links are valid relative paths

Step 4: Validation

  1. Verify compliance with https://llmstxt.org/ specification
  2. Check that all links are valid and accessible
  3. Ensure the file serves as an effective LLM navigation tool
  4. Confirm the file is both human and machine readable

Quality Assurance

Format Validation

  • ✅ H1 header with project name
  • ✅ Blockquote summary (if included)
  • ✅ H2 sections for file lists
  • ✅ Proper markdown link format
  • ✅ No broken or invalid links
  • ✅ Consistent formatting throughout

Content Validation

  • ✅ Clear, unambiguous language
  • ✅ Comprehensive coverage of essential files
  • ✅ Logical organization of content
  • ✅ Appropriate file descriptions
  • ✅ Serves as effective LLM navigation tool

Specification Compliance

  • ✅ Follows https://llmstxt.org/ format exactly
  • ✅ Uses required markdown structure
  • ✅ Implements optional sections appropriately
  • ✅ File located at repository root (/llms.txt)

Example Structure Template

# [Repository Name]

> [Concise description of the repository's purpose and scope]

[Optional additional context paragraphs without headings]

## Documentation

- [Main README](README.md): Primary project documentation and getting started guide
- [Contributing Guide](CONTRIBUTING.md): Guidelines for contributing to the project
- [Code of Conduct](CODE_OF_CONDUCT.md): Community guidelines and expectations

## Specifications

- [Technical Specification](spec/technical-spec.md): Detailed technical requirements and constraints
- [API Specification](spec/api-spec.md): Interface definitions and data contracts

## Examples

- [Basic Example](examples/basic-usage.md): Simple usage demonstration
- [Advanced Example](examples/advanced-usage.md): Complex implementation patterns

## Configuration

- [Setup Guide](docs/setup.md): Installation and configuration instructions
- [Deployment Guide](docs/deployment.md): Production deployment guidelines

## Optional

- [Architecture Documentation](docs/architecture.md): Detailed system architecture
- [Design Decisions](docs/decisions.md): Historical design decision records

Success Criteria

The created llms.txt file should:

  1. Enable LLMs to quickly understand the repository's purpose
  2. Provide clear navigation to essential documentation
  3. Follow the official llms.txt specification exactly
  4. Be comprehensive yet concise
  5. Serve both human and machine readers effectively
  6. Include all critical files for project understanding
  7. Use clear, unambiguous language throughout
  8. Organize content logically for easy consumption

Frequently asked questions about Create LLMs.txt File

Similar skills