explainthisrepo 0.2.1

ExplainThisRepo is a CLI developer tool to quickly explain GitHub repository in plain English

ExplainThisRepo

ExplainThisRepo is a CLI (Command Line Interface) tool that automatically generates plain-English explanations of GitHub repositories. It's designed to help developers quickly understand what any public GitHub repository does by analyzing its contents and creating an EXPLAIN.md file.

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🎯 Purpose

This tool solves the problem of understanding unfamiliar codebases. Instead of manually reading through code and documentation, developers can use this CLI to generate a clear, readable explanation of any GitHub repository.

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⚡ Key Features

• Fetches public GitHub repositories automatically

• Analyzes README and repository metadata to understand the project

• Generates clear explanations in plain English

• Outputs a EXPLAIN.md file in your current directory

• Simple command-line interface for ease of use

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📦 Installation

Option 1: Run with npm (recommended for most devs)

Install globally and use forever:

npm install -g explainthisrepo
explainthisrepo owner/repo

Or

npx explainthisrepo owner/repo

Option 2: You can install via pip (recommended):

Requirements: Python 3.9+

pip install explainthisrepo
explainthisrepo owner/repo

Option 3: Install with pipx

pipx install explainthisrepo
explainthisrepo owner/repo

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🧪 Usage

Basic

Generate a full explanation and saves it to EXPLAIN.md:

explainthisrepo owner/repo

Example:

explainthisrepo facebook/react

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Quick mode

Get a one-sentence definition (prints only, no file created):

explainthisrepo owner/repo --quick

Example:

explainthisrepo facebook/react --quick

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Detailed mode

Generate a more detailed explanation (includes architecture / folder structure):

explainthisrepo owner/repo --detailed

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Simple mode

Prints only the simple output (no EXPLAIN.md)

explainthisrepo owner/repo --simple

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Stack detector

Get a tech stack breakdown detected from repo signals. No AI explanation. Prints only.

explainthisrepo owner/repo --stack

Version

Print the installed version:

explainthisrepo --version

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Doctor

Check environment + connectivity (useful for debugging):

explainthisrepo --doctor

🔑 Configuration

ExplainThisRepo uses Gemini 2.5 Flash Lite model for code analysis.

Set your API key as an environment variable.

macOS / Linux

export GEMINI_API_KEY="your_api_key_here"

Windows (PowerShell)

setx GEMINI_API_KEY "your_api_key_here"

Restart your terminal after setting the key.

Termux (Android) install notes

Termux has some environment limitations that can make pip install explainthisrepo fail to create the explainthisrepo command in $PREFIX/bin.

Recommended install (Termux)

pip install --user -U explainthisrepo

Make sure your user bin directory is on your PATH:

export PATH="$HOME/.local/bin:$PATH"

Tip: Add the PATH export to your ~/.bashrc or ~/.zshrc so it persists.

Alternative (No PATH changes)

If you do not want to modify PATH, you can run ExplainThisRepo as a module:

python -m explain_this_repo owner/repo

Gemini support on Termux (Optional)

Installing Gemini support may require building Rust-based dependencies on Android, which can take time on first install:

pip install --user -U "explainthisrepo[gemini]"

Contributions

Contributions are welcome!

If you find a bug, have an idea, or want to improve the tool:

• See CONTRIBUTING for setup and guidelines
• Open an issue for bugs/feature requests
• Or submit a pull request for fixes/improvements

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License

This project is licensed under the MIT License. See the LICENSE file for details.

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Author

Caleb Wodi

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