Codewith is a command-line coding agent from Hasna that runs locally on your computer.

Codewith is a modified derivative of OpenAI Codex. Codewith is not affiliated with, sponsored by, or endorsed by OpenAI.

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Quickstart

Installing and running Codewith

Run the following on Mac, Linux, or Windows to install Codewith:

bun install -g @hasna/codewith

Codewith can also be installed through npm:

npm install -g @hasna/codewith

Then run codewith to get started. Codewith stores its local state in ~/.codewith by default.

For building from source and all install options, see Installing & building.

Download a prebuilt binary instead

Each GitHub Release contains many executables, but in practice, you likely want one of these:

• macOS
  • Apple Silicon/arm64: codewith-aarch64-apple-darwin.tar.gz
  • x86_64 (older Mac hardware): codewith-x86_64-apple-darwin.tar.gz
• Linux
  • x86_64: codewith-x86_64-unknown-linux-musl.tar.gz
  • arm64: codewith-aarch64-unknown-linux-musl.tar.gz

Each archive contains a single entry with the platform baked into the name (e.g., codewith-x86_64-unknown-linux-musl), so you likely want to rename it to codewith after extracting it.

Using Codewith with your ChatGPT plan

Run codewith and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codewith as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.

You can also use Codewith with an API key.

Features

Interactive Terminal UI

Codewith provides a rich terminal-based interface with:

• Slash commands: Use / to access commands like /model, /profile, /config, /review, and /diff
• Session management: Resume, fork, and archive previous conversations
• Markdown rendering: Display code, diffs, tables, and model responses in the terminal
• Vim mode: Optional Vim-style editing for the composer
• Custom keybindings: Remap TUI shortcuts to your preference
• Theme selection: Choose from multiple syntax highlighting themes

Authentication Profiles

Save and switch between multiple local authentication profiles:

codewith login --auth-profile work
codewith login --auth-profile personal
codewith profile list
codewith --auth-profile work

Execution Modes

• Interactive mode: Run codewith for the full TUI experience
• Exec mode: Run codewith exec "your prompt" for non-interactive tasks
• Review mode: Run codewith review for code review assistance
• Apply mode: Run codewith apply to apply diffs from previous sessions

Sandbox Security

Codewith can run commands under platform-specific sandboxing:

• macOS: Uses Seatbelt sandboxing
• Linux: Uses Landlock and bubblewrap (bwrap) sandboxing
• Windows: Uses Windows sandbox with private desktop

MCP (Model Context Protocol) Integration

Extend Codewith with external tools via MCP servers:

codewith mcp list
codewith mcp add <server-name>

Skills System

Enhance Codewith's capabilities with reusable skill definitions:

• Create .codewith/CODEWITH.md for project-specific instructions
• Install and manage skills through configured skill sources
• Use /skills to browse and manage available skills

Session Tools

Use built-in session tools while working:

• /plan switches to planning mode
• /goal tracks long-running objectives
• /loop, /schedule, and /monitor manage recurring work and lightweight monitors
• /agent and /side organize parallel or side conversations

Docs

• Changelog - Release notes for Codewith product versions
• Authentication - Auth profiles, login methods, and credential management
• Configuration - Config files, settings, and customization
• Contributing - Development setup and contribution guidelines
• Getting started - First-run workflow and common commands
• Slash Commands - TUI command reference
• Sandbox & Security - Security model and sandbox configuration
• Installing & building - Installation methods and building from source
• Skills - Creating and using Codewith skills
• Open source fund - Open source licensing and attribution

License

This repository is licensed under the Apache-2.0 License. See NOTICE, MODIFICATIONS.md, and THIRD_PARTY_NOTICES.md for attribution, modification, and bundled third-party notices. The Apache-2.0 license covers this codebase; it does not grant rights to OpenAI trademarks, services, accounts, subscriptions, models, or APIs.