# Claude Code (Unofficial Source Extraction)

> **This is NOT an official Anthropic repository.**

This repository contains the extracted TypeScript source code of [Anthropic's Claude Code](https://www.anthropic.com/) CLI tool. The source was obtained by unpacking the source map (`cli.js.map`) bundled with the officially published npm package.

- **npm package:** [@anthropic-ai/claude-code v2.1.88](https://www.npmjs.com/package/@anthropic-ai/claude-code/v/2.1.88)
- **Official homepage:** [github.com/anthropics/claude-code](https://github.com/anthropics/claude-code)

## Why does this exist?

Anthropic publishes Claude Code as a bundled JavaScript CLI on npm. The published package includes a source map file (`cli.js.map`) that contains the original TypeScript source. This repository simply extracts and preserves that source for easier reading and reference.

## How to get it yourself

### Clone this repository

```bash
git clone git@github.com:chatgptprojects/claude-code.git
cd claude-code
```

### Or extract it yourself from npm

1. **Install the package:**

```bash
mkdir claude-code-extract && cd claude-code-extract
npm pack @anthropic-ai/claude-code@2.1.88
tar -xzf anthropic-ai-claude-code-2.1.88.tgz
cd package
```

2. **Run the unpack script:**

Create a file called `unpack.mjs`:

```js
import { readFileSync, writeFileSync, mkdirSync } from "fs";
import { dirname, join } from "path";

const mapFile = join(import.meta.dirname, "cli.js.map");
const outDir = join(import.meta.dirname, "unpacked");

console.log("Reading source map...");
const map = JSON.parse(readFileSync(mapFile, "utf-8"));

const sources = map.sources || [];
const contents = map.sourcesContent || [];

console.log(`Found ${sources.length} source files.`);

let written = 0;
let skipped = 0;

for (let i = 0; i < sources.length; i++) {
  const src = sources[i];
  const content = contents[i];

  if (content == null) {
    skipped++;
    continue;
  }

  const outPath = join(outDir, src.replace(/^\.\.\//g, ""));
  mkdirSync(dirname(outPath), { recursive: true });
  writeFileSync(outPath, content);
  written++;
}

console.log(`Done! Wrote ${written} files to ${outDir}`);
if (skipped > 0) console.log(`Skipped ${skipped} files with no content.`);
```

3. **Run it:**

```bash
node unpack.mjs
```

The extracted source will be in the `unpacked/` directory.

## Project Structure

```
src/
├── cli/           # CLI entrypoint and argument parsing
├── commands/      # Command implementations
├── components/    # UI components (Ink/React)
├── constants/     # App constants and configuration
├── context/       # Context management
├── hooks/         # React hooks
├── ink/           # Terminal UI (Ink framework)
├── services/      # Core services
├── skills/        # Skill definitions
├── tools/         # Tool implementations (file editing, search, etc.)
├── types/         # TypeScript type definitions
├── utils/         # Utility functions
├── main.tsx       # Main application entry
├── query.ts       # Query handling
└── ...
```

## Disclaimer

All code in this repository is the intellectual property of [Anthropic](https://www.anthropic.com/). This repository is provided for **educational and reference purposes only**. Please refer to Anthropic's [license terms](https://www.npmjs.com/package/@anthropic-ai/claude-code/v/2.1.88) for usage restrictions.

This is **not** affiliated with, endorsed by, or supported by Anthropic.