index-repo

Index repository content into a structured PROJECT_INDEX.md file.

Updated Dec 22, 2025
One-click install
npx skills add https://github.com/senior-sigan/llm-skills --skill index-repo-senior-sigan
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: index-repo
Source: https://github.com/senior-sigan/llm-skills/tree/main/skills/index-repo
Command: npx skills add https://github.com/senior-sigan/llm-skills --skill index-repo-senior-sigan

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Repository indexing reduces the token cost of exploring large codebases by generating a centralized PROJECT_INDEX.md that captures structure, metadata, and key entry points.

Core Features & Use Cases

  • Phase-based analysis: scans code, docs, configs, tests, and tooling to collect structured metadata.
  • Automated index generation: builds PROJECT_INDEX.md with sections like Project Structure, Entry Points, Core Modules, Configuration, and Documentation.
  • Use Case: teams can quickly onboard new contributors by providing a searchable, human-friendly index of the repository.

Quick Start

Run the index-repo skill in your repository to generate PROJECT_INDEX.md and initialize the project index.

Frequently Asked Questions about index-repo

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I reduce token usage when exploring a large codebase?▼

Repository indexing reduces token usage by generating a centralized PROJECT_INDEX.md that summarizes code structure and metadata, enabling fast onboarding and quick discovery without scanning every file.

What is the best way to generate a project index for developer onboarding?▼

Generating a project index for onboarding is best done by running an automated phase-based analysis that scans code, docs, configs, and tests to render a structured PROJECT_INDEX.md with validation.

How does automated repository indexing work for code structure analysis?▼

Automated repository indexing works through a multi-phase workflow that analyzes code, extracts metadata, and renders a structured index with validation to capture entry points, core modules, and configuration.

Can I index repository documentation and configurations along with source code?▼

Yes, repository indexing analyzes code, docs, configurations, tests, and tooling to collect structured metadata, ensuring the generated index captures all relevant project content beyond just source files.

Do I need any dependencies to generate a PROJECT_INDEX.md for my repository?▼

No dependencies are required to generate a PROJECT_INDEX.md. You can run the index-repo skill directly in your repository to analyze content and initialize the project index with no external dependencies.

What sections are included in an automated repository index file?▼

An automated repository index file includes sections like Project Structure, Entry Points, Core Modules, Configuration, and Documentation, providing a searchable, human-friendly overview of the repository.