claude-code/README.md

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# Claude Code v2.1.88 — Full Source
Source code extracted from `@anthropic-ai/claude-code@2.1.88` npm package via source maps.
The 57MB source map (`cli.js.map`) shipped inside the npm package and pointed to a Cloudflare R2 bucket containing the full TypeScript source. No reverse engineering was performed — Anthropic published it themselves.
## How to Run
**Requirements:** Node.js 18+ and an [Anthropic API key](https://console.anthropic.com/)
```bash
git clone https://github.com/antonoly/claude-code.git
cd claude-code
node cli.js
```
That's it. On first launch you'll be prompted to log in or set `ANTHROPIC_API_KEY`.
## What's Inside
| Stat | Value |
|------|-------|
| Lines of TypeScript | 512K |
| Source files | 1,923 |
| Built-in tools | 43 |
| Package version | 2.1.88 |
### Key Findings
- **`buddy/`** — Full Tamagotchi pet system: 18 species, rarity tiers (1% legendary, 0.01% shiny legendary), 5 stats, gacha PRNG seeded per-user, ASCII art sprites. Launch gated for May 2026.
- **`utils/undercover.ts`** — Auto-activates on public repos. Injects system prompt: *"Do not blow your cover."* No force-OFF switch.
- **`outputStyles/`** — Anti-distillation defenses: strips tool lists, model info, and thinking content to prevent competitors from scraping behavior.
- **`coordinator/`** — KAIROS/Auto-Dream: autonomous multi-step planning with self-reflection loops.
- **`context/`** — 4-layer context compression: pruning → summarization → truncation → eviction.
### Source Tree
```
├── cli.js # Bundled CLI entry point (12MB)
├── package.json # Original npm package metadata
├── vendor/ # Native binaries (ripgrep, audio-capture)
├── buddy/ # BUDDY pet system
├── tools/ # 43 built-in tools
├── commands/ # Slash commands
├── components/ # React/Ink terminal UI
├── context/ # Context window management
├── coordinator/ # Multi-agent orchestration
├── hooks/ # Pre/post tool execution hooks
├── plugins/ # Plugin/skill marketplace
├── services/ # API clients, auth, billing
├── skills/ # Built-in skills
├── utils/ # Undercover mode, anti-distillation, models
│ ├── undercover.ts # "Do not blow your cover"
│ └── model/ # Model definitions, codename stripping
├── voice/ # Voice mode
└── vim/ # Vim keybindings
```
## Full Analysis
Independent architecture analysis with source code evidence:
**[verified-skill.com/insights/claude-code](https://verified-skill.com/insights/claude-code)**
## Disclaimer
This repository contains source code that was publicly exposed via npm source maps on March 31, 2026. All code was directly readable from the published npm package `@anthropic-ai/claude-code@2.1.88`. No reverse engineering, decompilation, or circumvention of technical protection measures was performed.