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https://github.com/dliedke/claudecodeextension

A Visual Studio .NET 2022 extension that provides a better interface for Claude Code CLI and OpenAI Codex with support for multi-line prompts and image attachments.
https://github.com/dliedke/claudecodeextension

ai claude-code code-assistant codex

Last synced: 4 months ago
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A Visual Studio .NET 2022 extension that provides a better interface for Claude Code CLI and OpenAI Codex with support for multi-line prompts and image attachments.

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README 

          
# Claude Code Extension for Visual Studio



A Visual Studio extension that provides seamless integration with Claude Code, OpenAI Codex or Cursor Agent directly within the Visual Studio IDE.



Claude Code Extension Screenshot



## Features



### 🎯 **Integrated Terminal**

- Embedded terminal within Visual Studio supporting multiple AI providers

- Automatic workspace directory detection when loading solutions

- Seamless command execution without leaving the IDE



### 🤖 **Multiple AI Provider Support**

- **Claude Code**: Full support for Claude Code CLI integration

- **OpenAI Codex**: Support for Codex AI assistant running inside WSL (Windows Subsystem for Linux)

- **Cursor Agent**: Support for Cursor Agent running inside WSL (Windows Subsystem for Linux)

- **Provider Switching**: Easy dropdown menu to switch between providers

- **Smart Detection**: Automatic detection and installation instructions for each AI tool



### ⌨️ **Smart Send Controls**

- **Send with Enter**: Toggle between Enter-to-send and manual send modes

- **Shift+Enter** or **Ctrl+Enter**: Create new lines when Send with Enter is enabled

- **Manual Send Button**: Appears when Send with Enter is disabled



### 🖼️ **Image Support**

- **Clipboard Paste**: Use Ctrl+V to paste images from clipboard in the prompt area

- **File Browser**: Click "Add Image" to select images from file system

- **Image Chips**: Visual representation of attached images with remove functionality



### 🔧 **Workspace Intelligence**

- **Solution Detection**: Automatically detects and switches to solution directory

- **Dynamic Updates**: Terminal restarts when switching between solutions

- **Fallback Handling**: Smart directory resolution when no solution is open



### 💾 **Persistent Settings**

- **JSON Configuration**: Settings stored in `%LocalAppData%\..\Local\ClaudeCodeExtension\claudecode-settings.json`

- **Send with Enter State**: Remembers your preferred input mode

- **Splitter Position**: Maintains your preferred layout between sessions

- **AI Provider Selection**: Remembers your preferred AI assistant



### 🎨 **Visual Studio Integration**

- **Dark/Light Theme**: Consistent with Visual Studio's dark/light theme

- **Resizable Layout**: Adjustable splitter between prompt and terminal areas

- **Native Controls**: Follows Visual Studio UI conventions

- **Dynamic Titles**: Window title changes based on selected AI provider



## System Requirements



- Visual Studio 2022 17.14 or later

- Windows operating system

- **For Claude Code**: Claude Pro or better paid subscription + Claude Code CLI installed and accessible via `claude.cmd` in path.

  Refer to https://docs.claude.com/en/docs/claude-code/setup for Claude Code installation

- **For OpenAI Codex**: Chat GPT Plus or better paid subscription + Windows Subsystem for Linux (WSL) + Codex AI assistant installed inside WSL

  Installation instructions are provided automatically when selecting Codex without WSL/Codex installed

- **For Cursor Agent**: Windows Subsystem for Linux (WSL) + Cursor Agent installed inside WSL

  Installation instructions are provided automatically when selecting Cursor Agent without WSL/cursor-agent installed



## Installation



1. Download the latest VSIX package

2. Double-click the VSIX file to install

3. Restart Visual Studio

4. Open the extension via **View** → **Other Windows** → **Claude Code Extension**



## Quick Start



- **First Time Setup**: Ensure your preferred AI provider (Claude Code, OpenAI Codex, or Cursor Agent) is installed and accessible

- **Open Tool Window**: View → Other Windows → Claude Code Extension

- **Choose AI Provider**: Click the ⚙ (gear) button to select between Claude Code, Codex, and Cursor Agent

- **Start Chatting**: Type your prompt and press Enter

- **Add Images**: Use Ctrl+V to paste or click "Add Image" button

- **Customize**: Toggle "Send with Enter" and adjust layout as needed



## Usage



1. **Open the Tool Window**: Navigate to View → Other Windows → Claude Code Extension

2. **Select AI Provider**: Click the ⚙ (gear) button and choose your preferred AI assistant

3. **Enter Prompts**: Type your questions or requests in the prompt area

4. **Add Images**: Drag & drop, paste, or use the "Add Image" button

5. **Send Messages**: Press Enter (if enabled) or click the Send button

6. **View Responses**: See AI responses in the embedded terminal below and also interact with it directly



### AI Provider Menu

- **Settings Menu**: Click the ⚙ (gear) button in the top-right corner to access provider settings

- **Claude Code**: Switch to Claude Code CLI integration

- **Codex**: Switch to Codex AI assistant (runs inside WSL)

- **Cursor Agent**: Switch to Cursor Agent (runs inside WSL)

- **About**: View extension version and information



### Customization

- **Send with Enter**: Check/uncheck the checkbox to toggle sending behavior

- **Layout**: Drag the splitter to adjust the prompt/terminal ratio

- **AI Provider**: Use the context menu to switch between available providers

- **Settings persist automatically** between Visual Studio sessions



### Updating Your AI Agent



The extension includes a convenient Update Agent button (🔄️) that automatically updates your selected AI provider:



- **Claude Code**: Exits the agent and runs `claude update`

- **Codex**: Exits the agent and runs `npm install -g @openai/codex@latest` inside WSL

- **Cursor Agent**: Exits the agent and runs `cursor-agent update` inside WSL



Simply click the update button and the extension will handle the entire update process for you.



## Version History



### Version 2.1



**Codex WSL Integration & Exit Improvements:**

- Codex now runs inside WSL for better compatibility and performance

- Improved Codex exit handling: right-click terminal center before sending Ctrl+C

- Fixed AI provider switching to correctly exit the current provider (not the new one being selected)

- Smart provider tracking ensures proper exit commands for each AI assistant

- Consistent WSL-based architecture for both Codex and Cursor Agent



### Version 2.0



**Agent Update Button:**

- Added Update Agent button with refresh icon for easy agent updates

- Smart update command execution based on selected provider:

  - Claude Code: Runs `claude update` command

  - Codex: Runs `npm install -g @openai/codex@latest` inside WSL

  - Cursor Agent: Runs `cursor-agent update` inside WSL

- Convenient one-click updates without manually typing commands



### Version 1.8



**VS Restart Fix:**

- Fixed terminal not opening when Visual Studio restarts with a solution already loaded

- Extension now detects when a solution is already open on startup and initializes terminal immediately

- Improves reliability when working with solutions across VS sessions



### Version 1.7



What's New:

- Clean Single-Border Design: Redesigned the UI with elegant single borders around prompt and terminal areas - no more double borders!

- Better Contrast: Borders now use high-contrast colors (white in dark mode, black in light mode) for improved visibility

- Smarter Startup: Terminal now initializes only when you open a solution, not when the extension loads - faster and more efficient!

- Improved Solution Switching: When switching between solutions, the AI assistant properly reloads with the new workspace context

- Bug Fixes: Fixed various initialization and workspace detection issues for a smoother experience



### Version 1.6



**Cursor Agent Support:**

- Added full support for Cursor Agent running inside Windows Subsystem for Linux (WSL)

- Automatic WSL detection and path conversion for seamless integration

- Comprehensive installation guide displayed when WSL or Cursor Agent is not detected



**Improvements:**

- Better AI provider persistence across solution changes

- Enhanced provider detection and switching logic



### Version 1.5



**Behind the Scenes:**

- Major code reorganization for better maintainability (split into 13 specialized files)

- Added comprehensive documentation throughout the codebase

- No changes to functionality - everything works exactly the same!



### Version 1.4



**Stability Improvements:**

- Fixed extension re-initialization issue when switching between windows

- Prevents multiple terminal instances from being created

- More reliable overall behavior



### Version 1.3



**File Management & UI:**

- Automatic cleanup of temporary image directories on startup

- Simpler image naming: `image_1.png`, `image_2.png` instead of long timestamps

- Each prompt with images gets its own unique folder to prevent conflicts

- Fixed gear icon (⚙) display in settings button



### Version 1.2



**Multi-Provider Support:**

- Added OpenAI Codex as a second AI assistant option

- Easy switching between Claude Code and Codex via settings menu

- Window title shows which AI provider you're currently using

- Your provider choice is saved between sessions



### Version 1.1



**Visual & Usability:**

- Theme support: Extension now follows Visual Studio's light/dark theme

- Better icon display in the View menu

- Helpful installation instructions if Claude Code is not found

- Fixed image pasting issues



### Version 1.0



**Initial Release:**

- Embedded AI assistant terminal right in Visual Studio

- Send prompts with Enter (or use Shift+Enter for new lines)

- Full image support: paste, drag & drop, or browse for files

- Automatic workspace detection when opening solutions

- All your preferences saved automatically



- ## Kwown Issues



- In rare cases for some machines terminal might lauch outside the extension and

  fatal error "Stop code: KERNEL_SECURITY_CHECK_FAILURE (0x139)" can happen.

  Workaround right now is to run VS.NET 2022 as Administrator.



## License & Usage



** IMPORTANT NOTICE**



This extension is proprietary software. **Unauthorized cloning, copying, modification, or distribution is strictly prohibited** without explicit written permission from the author.



### Restrictions

- No cloning or forking of source code

- No modification or derivative works

- No redistribution or commercial use

- No reverse engineering



### Permissions

For licensing inquiries or permission requests, please contact the author.



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*Claude Code Extension for Visual Studio - Enhancing your AI-assisted development workflow*



*Build with the help of Claude Opus 4.1, Claude Code and GPT-5*