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Readme

KernelBot

AI engineering agent — a Telegram bot backed by Claude Sonnet with full OS control via tool use.

Send a message in Telegram, and KernelBot will read files, write code, run commands, and respond with the results. It's your personal engineering assistant with direct access to your machine.

How It Works

You (Telegram) → KernelBot → Claude Sonnet (Anthropic API)
                                   ↕
                             OS Tools (shell, files, directories)

KernelBot runs a tool-use loop: Claude decides which tools to call, KernelBot executes them on your OS, feeds results back, and Claude continues until the task is done. One message can trigger dozens of tool calls autonomously.

Tools

Tool	Description
`execute_command`	Run any shell command (git, npm, python, etc.)
`read_file`	Read file contents with optional line limits
`write_file`	Write/create files, auto-creates parent directories
`list_directory`	List directory contents, optionally recursive

Disclaimer

WARNING: KernelBot has full access to your operating system. It can execute shell commands, read/write files, manage processes, control Docker containers, and interact with external services (GitHub, Telegram) on your behalf. Only run KernelBot on machines you own and control. Always configure allowed_users in production to restrict who can interact with the bot. The authors are not responsible for any damage caused by misuse.

Installation

npm install -g kernelbot

Quick Start

kernelbot

That's it. On first run, KernelBot will:

Detect missing credentials and prompt for them
Save them to ~/.kernelbot/.env
Verify API connections
Launch the Telegram bot

Configuration

KernelBot auto-detects config from the current directory or ~/.kernelbot/. Everything works with zero config — just provide your API keys when prompted.

Environment Variables

Set these in .env or as system environment variables:

ANTHROPIC_API_KEY=sk-ant-...
TELEGRAM_BOT_TOKEN=123456:ABC-DEF...

`config.yaml` (optional)

Drop a config.yaml in your working directory or ~/.kernelbot/ to customize behavior:

bot:
  name: KernelBot

anthropic:
  model: claude-sonnet-4-20250514
  max_tokens: 8192
  temperature: 0.3
  max_tool_depth: 25 # max tool calls per message

telegram:
  allowed_users: [] # empty = allow all (dev mode)
  # allowed_users: [123456789]  # lock to specific Telegram user IDs

security:
  blocked_paths: # paths the agent cannot touch
    - /etc/shadow
    - /etc/passwd

logging:
  level: info
  max_file_size: 5242880 # 5 MB

conversation:
  max_history: 50 # messages per chat

Security

User allowlist — restrict bot access to specific Telegram user IDs. Empty list = dev mode (anyone can use it).
Blocked paths — files/directories the agent is forbidden from reading or writing (e.g., /etc/shadow, SSH keys).
Audit logging — every tool call is logged to kernel-audit.log with user, tool, params, result, and duration. Secrets in params are automatically redacted.
Command timeout — shell commands are killed after 30 seconds by default.

Project Structure

KernelBot/
├── bin/
│   └── kernel.js           # Entry point
├── src/
│   ├── agent.js            # Sonnet tool-use loop
│   ├── bot.js              # Telegram bot (polling, auth, message handling)
│   ├── conversation.js     # Per-chat conversation history
│   ├── prompts/
│   │   └── system.js       # System prompt
│   ├── security/
│   │   ├── auth.js         # User allowlist
│   │   └── audit.js        # Tool call audit logging
│   ├── tools/
│   │   ├── os.js           # OS tool definitions + handlers
│   │   └── index.js        # Tool registry + dispatcher
│   └── utils/
│       ├── config.js       # Config loading (auto-detect + prompt)
│       ├── display.js      # CLI display (logo, spinners, banners)
│       └── logger.js       # Winston logger
├── config.example.yaml
├── .env.example
└── package.json

Requirements

Author

Abdullah Al-Taheri

kernelbot