AI coding agent, built for the terminal.

Note: This is an enhanced fork of the original opencode with additional features for safer AI-assisted development.

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Fork Enhancements

This fork includes several enhancements over the original opencode:

🎯 Planning Mode (Shift+Tab)

• Research-only mode for safe exploration before making changes
• AI analyzes codebase using only read operations
• Generates detailed step-by-step implementation plans
• Switch to implementation mode after plan approval
• Helps prevent mistakes by thinking through changes first

💾 Automatic Checkpointing System

• Creates shadow repository snapshots before file modifications
• Automatic safety net for all AI-assisted code changes
• Easy rollback capabilities if something goes wrong
• Configurable via settings (can be disabled if needed)

🎨 Enhanced TUI Experience

• Improved theme system with better color detection
• Enhanced markdown rendering with safeguards
• Better dialog components for planning and checkpoints
• More robust error handling and display

🛠️ Developer Experience

• Added run-local.sh script for easier local development
• Better error schema handling to prevent initialization issues
• Improved TypeScript/Go client generation workflow
• Enhanced documentation with CLAUDE.md for AI assistance

These features make AI-assisted development safer and more predictable, especially for complex refactoring tasks.

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Installation

# YOLO
curl -fsSL https://opencode.ai/install | bash

# Package managers
npm i -g opencode-ai@latest        # or bun/pnpm/yarn
brew install sst/tap/opencode      # macOS
paru -S opencode-bin               # Arch Linux

Note: Remove versions older than 0.1.x before installing

Documentation

For more info on how to configure opencode head over to our docs.

Contributing

For any new features we'd appreciate it if you could open an issue first to discuss what you'd like to implement. We're pretty responsive there and it'll save you from working on something that we don't end up using. No need to do this for simpler fixes.

To run opencode locally you need.

• Bun
• Golang 1.24.x

And run.

$ bun install
$ bun run packages/opencode/src/index.ts

Development Notes

API Client: After making changes to the TypeScript API endpoints in packages/opencode/src/server/server.ts, you will need the opencode team to generate a new stainless sdk for the clients.

FAQ

How is this different than Claude Code?

It's very similar to Claude Code in terms of capability. Here are the key differences:

• 100% open source
• Not coupled to any provider. Although Anthropic is recommended, opencode can be used with OpenAI, Google or even local models. As models evolve the gaps between them will close and pricing will drop so being provider agnostic is important.
• A focus on TUI. opencode is built by neovim users and the creators of terminal.shop; we are going to push the limits of what's possible in the terminal.
• A client/server architecture. This for example can allow opencode to run on your computer, while you can drive it remotely from a mobile app. Meaning that the TUI frontend is just one of the possible clients.

What about Windows support?

There are some minor problems blocking opencode from working on windows. We are working on on them now. You'll need to use WSL for now.

What's the other repo?

The other confusingly named repo has no relation to this one. You can read the story behind it here.

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