cli-use

Easily build agentic CLI tools

cli-use is a powerful framework for building stunning terminal applications. It combines the ease of React for standard TUIs with a high-performance Native Rust/Ratatui engine for advanced, AI-powered interfaces.

🎯 Overview

• React: Build interactive CLIs using React components (Tables, Lists, Markdown, Flexbox).
• Rust/Ratatui: Experience ultra-fast, native TUI performance for specialized tools like our AI terminal.

✨ Features

• 🤖 AI-Powered Terminal - Integrated Google Gemini AI chat client (Native Rust).
• 🎨 Beautiful Styling - CSS-like properties for stunning interfaces.
• 📊 Rich Components - Tables, Lists, Markdown, and Layouts out of the box.
• ⚡ Hybrid Architecture - Uses Node.js for flexibility and Rust for raw TUI performance.
• 🔧 TypeScript - Full type safety and excellent IDE support.

🚀 Quick Start

1. Install via NPM

npm install -g @cli-use/tui

2. Configure AI (Optional)

To use the AI features (cli-use code), you need to set your Google Gemini API key.

1. Get a Google AI Studio API Key.
2. Set it in your environment:

# Set in your current session
export GOOGLE_API_KEY=your_key_here

# OR create a .env file in the directory where you run the command
echo "GOOGLE_API_KEY=your_key_here" > .env

# OR create a global config file in your home directory (Recommended)
echo "GOOGLE_API_KEY=your_key_here" > ~/.cli-use-env

3. Run the AI Terminal

Launch the high-performance AI chat interface:

cli-use code

🤖 CLI CODE (AI Terminal)

The cli-use code command launches a native Rust application that integrates with Google Gemini.

• Splash Screen: Instant startup with a stylized "CLI CODE" ASCII art.
• Instant Input: Start typing your query immediately on the home screen.
• Streaming Responses: Real-time AI streaming powered by Vercel AI SDK (Node.js) and Ratatui (Rust).
• Performance: Zero-latency UI rendering thanks to the native Rust backend.

Prerequisites for Native Features:

• Rust installed (automatically detected and built during install).

💡 React Examples

You can also build standard React-based CLIs.

Basic App

import React from 'react';
import { render, Box, Text } from '@cli-use/tui';

const App = () => (
  <Box borderStyle="round" padding={1}>
    <Text bold>Hello from cli-use!</Text>
  </Box>
);

render(<App />);

Interactive Counter

import React, { useState } from 'react';
import { render, Box, Text, useInput } from '@cli-use/tui';

const Counter = () => {
  const [count, setCount] = useState(0);

  useInput((input, key) => {
    if (key.return) setCount((c) => c + 1);
  });

  return (
    <Box>
      <Text>Count: {count}</Text>
      <Text dim>Press Enter to increment</Text>
    </Box>
  );
};

render(<Counter />);

📦 API

Core Components

• Box - Container component for layout and styling
• Text - Text rendering with colors and styles
• render() - Render cli-use apps to terminal
• useInput() - Handle keyboard input
• useApp() - App instance management

🧰 Development

# Install dependencies
npm install

# Build the project (including Rust native binary)
npm run build

# Run the AI Terminal (Dev Mode)
npm run demo:rust

# Run React Examples
npm run demo:cli-use

📁 Project Structure

cli-use/
├── native/              # Rust/Ratatui source code
│   └── src/
│       └── main.rs      # Native TUI entry point
├── src/
│   ├── ai-worker.ts     # Node.js AI Bridge (Vercel AI SDK)
│   ├── cli/             # CLI Entry point
│   ├── components/      # React components
│   └── examples/        # Example apps
│       └── cli-use-demo.tsx # React/cli-use Demo
├── package.json
└── README.md

🧠 Philosophy & Strategy

cli-use is not just a framework; it's a movement towards Agent-First Software. We believe the future of AI is not in chat windows, but in specialized, interactive CLI agents distributed instantly via SSH.

• 📖 Read the Manifesto: Why software must be instant, ephemeral, and terminal-native.
• 📊 Market Analysis: Why we are building the "Agent Economy" and the "Steam for AI Agents".
• ⚔️ Competitive Analysis: How we win against Replit, Lovable, and LangChain.

The Vision

graph TD
    Problem[AI struggles with Complex Apps] -->|Reason| Context[Context Overload]
    Context -->|Caused by| BigApps[Bigger Applications]
    BigApps -->|Generate| Boilerplate[Unnecessary Boilerplate]

    Question[Future of Software?] -->|Answer| Solution[Simpler, Smaller, Replaceable]
    Solution -->|Enables| CLI[CLI Use]

    CLI -->|Action| Terminal[Ship via Terminal]
    Terminal -->|Removes| Boilerplate

    CLI -->|Unlocks| AINative[True AI Native Experience]
    AINative -->|Allows Agents to| Resources[Harness Computer Resources]
    Resources -->|Enables| Evolution[Learn & Evolve]
    Evolution -->|Result| FullLife[Agents have a full life]

    Trend[Market Trend] -->|Examples| Examples[Claude Code, Open Claw]
    Examples -->|Validates| CLI

    CLI -->|Ultimate Goal| Objective[Ship TRUE AI-native Applications]

    style Problem fill:#ffcccc,stroke:#333,stroke-width:2px
    style CLI fill:#ccffcc,stroke:#333,stroke-width:4px
    style Objective fill:#ccccff,stroke:#333,stroke-width:2px

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The Context Problem

graph TD
    Start[1. Desire for Complex App] -->|Leads to| Scale[2. Application Grows]
    Scale -->|Creates| Context[3. Massive Context Required]
    Context -->|Generates| Boilerplate[4. Unnecessary Boilerplate]
    Boilerplate -->|Causes| Overflow{5. Context Window Overflow}
    Overflow -->|Result| Failure[6. AI Cannot Maintain]
    Failure -->|Outcome| Confusion[7. Agents & Humans Confused]

    style Overflow fill:#ff9999,stroke:#f00,stroke-width:2px
    style Failure fill:#ffcccc,stroke:#333

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The Agent Economy

graph TD
    Data[1. Synthetic Sandbox] -->|Trains| Agent[2. Expert Agent]
    Agent -->|Published to| Market[3. Agent Marketplace]
    Market -->|Rented by| User[4. Consumer]
    User -->|Via| SSH[5. SSH Runtime]
    SSH -->|Pays| Creator[6. Creator Monetization]

    style Market fill:#ccffcc,stroke:#333
    style SSH fill:#ccccff,stroke:#333

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🤝 Contributing

Contributions welcome! Please read our contributing guidelines before submitting PRs.

📄 License

MIT © 2025 cli-use contributors

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Built with ❤️, React, and Rust