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Open Code: A Terminal-Based AI Coder - Summary

Key Concepts:

• Terminal-based AI coders (Claude Code, Ader, Open Code)
• Provider models (OpenAI, Anthropic Claude, Google Gemini, AWS Bedrock, Groq, Azure OpenAI, Open Router)
• Session management
• Tool integration (command execution, file search, code modification)
• Built-in Vim editor
• LSP (Language Server Protocol) integration
• Custom commands (workflows)
• Configuration file
• King Bench app (example application)

1. Introduction to Open Code

Open Code is presented as a new terminal-based AI coder aiming to address the shortcomings of existing tools like Claude Code and Ader. The main problem with Claude Code is that it can't use any other provider model. Ader can get quite heavy and takes quite some time to load. It is designed to be faster, quicker, and more versatile.

2. Key Features and Advantages

• Speed and Performance: Built on Go, Open Code is significantly faster and snappier than Ader and Claude Code. It's described as the "Zed of terminal-based AI coders."
• Interactive Terminal Interface: Uses a Bubble Tea-based interface for an interactive experience.
• Provider Model Support: Supports a wide range of provider models, including OpenAI, Anthropic Claude, Google Gemini, AWS Bedrock, Groq, Azure OpenAI, and Open Router.
• Session Management: Offers robust session management, a feature lacking in Ader and Claude Code. It allows users to create, save, and navigate between multiple sessions.
• Tool Integration: Integrates tools for command execution, file searching, and code modification.
• Built-in Vim Editor: Includes a built-in Vim editor for direct file navigation and editing, with AI assistance.
• SQLite Database: Uses an SQLite database for storing conversations and sessions.
• LSP Integration: Provides LSP integration, displaying code errors similar to VS Code.
• External Editor Support: Allows users to open their preferred editor for composing messages.
• Change Tracking and Visualization: Tracks and visualizes changes as they are made.
• Custom Commands: Supports custom commands, which are essentially workflows similar to those in Windsurf or Klein.

3. Installation and Setup

Open Code can be installed using the following methods:

• Direct commands (specific commands not provided in the transcript)
• Homebrew (for Mac users)
• Go package manager

After installation, users need to set up their API keys. This can be done by:

• Exporting environment API keys in the terminal.
• Storing the API key in the Open Code configuration file. The presenter recommends using it with Gemini 1.5 Pro.

4. User Interface and Functionality

Upon opening Open Code with the open code command, the interface displays:

• Main chat window
• Current working directory details
• Session information
• LSP status
• Modified files
• Selected model
• Context and cost incurred

Shortcuts:

• Ctrl + ?: Displays available shortcuts.
• Ctrl + L: Opens logs about messages (SQLite database dump).
• Ctrl + C: Quits Open Code.
• Ctrl + S: Navigates between existing sessions.
• Ctrl + N: Creates a new session.
• Ctrl + F: Selects files to upload with the prompt.
• Ctrl + O: Selects the model to use.
• Theme option: Allows choosing between pre-made themes (e.g., catppuccin).
• @: Mentions a file in the prompt.
• Ctrl + E: Opens the preferred editor for writing prompts.

5. Custom Commands

Custom commands are workflows defined in markdown files. They allow users to automate tasks. Open Code includes two default commands:

• initialize: Initializes a new project.
• compact session: Summarizes the current session's context and creates a new session with that context.

6. Example Usage

The presenter demonstrates Open Code by asking it to create a light theme option in a "King Bench" app. The process involves:

• Open Code edits the file.
• The user approves the operation.
• Open Code completes the task quickly and efficiently.

The presenter emphasizes the speed and smoothness of Open Code compared to Claude Code and Ader.

7. LSP and MCP Server Integration

Open Code supports LSP and MCP servers. LSP integration allows users to see errors in files, similar to VS Code. The presenter does not go into detail about MCP server integration.

8. Conclusion

The presenter concludes that Open Code outperforms Claude Code and Ader due to its speed, snappiness, and overall polish. They plan to switch to Open Code as their main terminal coder, using it with Gemini 1.5 Pro. The presenter encourages viewers to try Open Code.

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