crabcode 0.0.1

(WIP) Rust AI CLI Coding Agent with a beautiful terminal UI
crabcode-0.0.1 is not a library.

crabcode

[!WARNING]
This project is very very early (like experiment-early) don't expect it to get to OpenCode level anytime soon.

A purely Rust-based AI CLI coding agent with a beautiful terminal UI for interactive AI-assisted development.

screenshot

Features

  • Terminal UI (TUI) - Beautiful, responsive interface built with ratatui
  • Agent System - Switch between PLAN (read-only analysis) and BUILD (implementation) agents with TAB
  • Multiple Model Support - Works with nano-gpt, z.ai, and other AI models via HTTP APIs
  • Command System - Intuitive commands: /sessions, /new, /connect, /models, /exit
  • Auto-suggestions - Get suggestions for commands when typing /
  • Status Bar - Shows version, current directory, git branch, active agent, and model
  • Session Management - Create and manage multiple chat sessions
  • Streaming Responses - Real-time streaming of AI responses
  • Git Integration - Detects and displays current git branch
  • Config Management - Secure API key storage in ~/.config/crabcode/api_keys.json

Installation

Install via cargo:

cargo install crabcode

Quick Start

  1. Run crabcode:

    crabcode

  2. Configure your AI model:

    /connect

  3. Start coding! Type your questions or requests and press Enter.

Usage

Commands

Command Description
/sessions List all sessions
/new [name] Create a new session
/connect <provider> Configure model provider (e.g., nano-gpt, z.ai)
/models List available models
/exit Quit crabcode

Key Bindings

Key Action
TAB Switch between PLAN and BUILD agents
Enter Submit message or execute command
Ctrl+C (once) Clear input
Ctrl+C (twice) Quit
Esc Close popup suggestions
↑/↓ Navigate in input or suggestions popup

Agent Types

  • PLAN - Read-only analysis and planning agent. Best for understanding codebases, architecture questions, and planning changes.
  • BUILD - Full access implementation agent. Best for writing code, implementing features, and making changes.

Configuration

API keys are stored securely in ~/.config/crabcode/api_keys.json.

Supported Providers

These are my priority. Will be powered by mostly aisdk + models.dev

  • nano-gpt - NanoGPT API
  • z.ai - z.ai coding plan
  • minimax.io

Development

Build from source

git clone https://github.com/blankeos/crabcode.git
cd crabcode
cargo build --release

Run tests

cargo test

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

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

Inspiration

This project was inspired by anomalyco/opencode.

Scope

  • Chat, switch models, agents
  • Minimal configurations (I want it to just feel at least like vanilla opencode)
  • The cheapest model providers (GLM, etc.)
  • A ding sound, my only opencode plugin at the moment.
  • No reverse-engineering oauth from big AI (Codex, Claude Code, Gemini), at least for now (Don't wanna get in trouble).
  • Possibly ralphy? (very far, idk how to do that)
  • ACP? (very far, idk how to do that)
  • No plugin ecosystem
  • No desktop app
  • No web sharing thing

Why?

I'm learning rust :D. Built a few TUIs as practice. Also been making AI chat apps on web, so I wanna work on this.

Repository

https://github.com/blankeos/crabcode