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@yiliang114 yiliang114 commented Nov 18, 2025

TLDR

qwen-code-12.10.0.4.1.1.mp4

This PR implements a comprehensive VSCode extension for Qwen Code, providing a full-featured chat interface with ACP (Agent Communication Protocol) integration. The extension enables seamless interaction with Qwen Code CLI through a modern UI, featuring file system operations, session management, real-time tool call visualization, permission controls, and extensive UI/UX improvements. This work transforms Qwen Code from a CLI-only tool into a fully integrated IDE experience.

Dive Deeper

Background

This PR introduces the VSCode IDE companion extension for Qwen Code, building upon the existing CLI tool to provide a graphical interface for AI-assisted coding. The extension implements the full ACP protocol, allowing users to interact with Qwen Code's capabilities directly within VSCode, with visual feedback, permission controls, and session management.

Core Feature Changes

Implemented Features:

  • ✅ Full ACP (Agent Communication Protocol) client implementation (acpConnection.ts)
  • ✅ JSON-RPC 2.0 based message handling
  • ✅ Support for all ACP methods: initialize, session/create, session/list, session/load, session/save, permission/request, permission/respond
  • ✅ File system operations: fs/read_text_file, fs/write_text_file
  • ✅ Bidirectional communication with CLI via stdio
  • ✅ Request/response correlation with promise-based async handling
  • ✅ Real-time session updates via session/update notifications

Technical Implementation:

  • ACP connection spawns Qwen CLI process with chat --acp mode
  • Message handler parses JSON-RPC messages from CLI stdout
  • Pending request tracking ensures responses match requests
  • Session manager handles session lifecycle (create, list, load, save)
  • File handler implements file read/write with pagination support
  • Support for both absolute and relative paths with proper normalization

Reviewer Test Plan

Quick Start

# 1. Install dependencies (first time only)
npm install

# 2. Press F5 or select "Launch Companion VS Code Extension" from debug dropdown

Debugging Options:

  • From Root (Recommended): Open project root, select "Launch Companion VS Code Extension", press F5
  • From Extension Dir: cd packages/vscode-ide-companion, open in VSCode, select "Run Extension", press F5

Note: The pre-launch task automatically compiles the extension. No manual build required.

Key Test Scenarios

1. CLI Detection & Installation

Test: Extension activation without CLI installed

  • Verify friendly installation prompt appears
  • Test "Install Now" → terminal opens → npm install runs
  • Confirm reload prompt after installation
  • Verify CLI is detected after reload

2. ACP Connection & Session Management

Test: Create and manage chat sessions

  • Open chat panel (Command: "Qwen Code: Open Chat")
  • Send first message → verify session created
  • Check session appears in session selector
  • Create new session → verify old messages cleared
  • Switch back to previous session → verify messages restored

3. File Operations & Permissions

Test: File read/write with permission control

  • Chat: "Read package.json"
    • Verify permission request appears (if interactive mode)
    • Test "Allow Once" → file contents displayed
  • Chat: "Create a test.txt file with 'Hello Qwen'"
    • Verify permission request for file write
    • Test "Always Allow" → subsequent writes don't prompt
  • Chat: "Edit package.json to add a comment"
    • Verify permission request for file edit
    • Test "Reject Once" → operation cancelled

4. Tool Call Visualization

Test: Real-time tool call status updates

  • Execute any operation (e.g., file read)
  • Verify tool call card appears with:
    • Status badge: pending → in_progress → completed
    • Appropriate icon for operation type
    • Input parameters visible
    • Collapsible sections work
  • For edit operations, verify side-by-side diff displays

5. Permission Approval Modes

Test: Cycle through approval modes

  • Click approval mode button in header
  • Verify modes cycle: Interactive → Always Allow → Always Deny → Interactive
  • In "Always Allow" mode: verify no permission prompts
  • In "Always Deny" mode: verify operations blocked
  • In "Interactive" mode: verify prompts appear

6. Authentication & Caching

Test: Auth token persistence

  • First login: complete OAuth or API key flow
  • Restart VSCode
  • Verify no re-authentication needed
  • Command: "Qwen Code: Clear Auth Cache"
  • Verify next operation prompts for auth

7. Markdown Rendering & Code Blocks

Test: Rich text and code display

  • Chat: "Show me a Python hello world example"
  • Verify markdown renders correctly
  • Verify code blocks have syntax highlighting
  • Test inline code formatting

8. Error Handling & Recovery

Test: Graceful error handling

  • Chat: "Read nonexistent-file.txt"
    • Verify error displayed in tool call card
  • Disconnect CLI (kill process)
    • Verify reconnection attempt
    • Verify clear error message if reconnection fails
  • Invalid authentication
    • Verify cache cleared
    • Verify re-authentication prompt

9. UI Responsiveness & Theming

Test: Visual adaptation

  • Resize chat panel (narrow → wide)
    • Verify components adapt responsively
    • Verify no horizontal scrolling
  • Toggle VSCode theme (dark ↔ light)
    • Verify colors adapt correctly
    • Verify all UI elements readable

10. Session History & Rehydration

Test: Load historical conversations

  • Create session with multiple messages
  • Close VSCode
  • Reopen VSCode
  • Open session selector
  • Load previous session
  • Verify all messages restored correctly

Testing Matrix

Extension Development & Debugging

🍏 macOS 🪟 Windows 🐧 Linux
F5 Debug
Manual

Testing Coverage:

  • ✅ macOS: Full development workflow tested (F5 debug from root and extension dir)
  • ✅ macOS: Manual feature testing (CLI detection, file operations, permissions, tool calls)
  • ❓ Windows: Pending cross-platform validation
  • ❓ Linux: Pending cross-platform validation

Note: This PR focuses on the VSCode extension package. The extension runs within VSCode's extension host, so traditional runtime testing (npm run, Docker, etc.) applies only to the CLI tool, not the extension itself.

Feature Checklist

✅ Completed Features

Core Infrastructure:

  • Complete ACP (Agent Communication Protocol) implementation with JSON-RPC 2.0
  • CLI management system (detection, installation, version checking, path detection)
  • Authentication state management with secure token caching
  • Session management (create, list, load, save, delete, rehydration)
  • File operations (read/write with pagination and permission control)

UI/UX Components (70+ components):

  • React-based WebView with modern chat interface
  • Permission drawer with interactive approval modes
  • 10+ specialized tool call components (Edit, Read, Write, Search, Execute, etc.)
  • Markdown renderer with syntax highlighting
  • Message timeline with real-time updates
  • Session selector with date grouping
  • Input form with command auto-completion
  • Comprehensive icon system (40+ SVG icons)
  • Responsive design with dark/light theme support

Developer Experience:

  • esbuild + TypeScript + React build pipeline
  • Tailwind CSS integration with PostCSS
  • Hot reload and watch mode
  • Two debug configurations (root / extension dir)
  • Comprehensive README and documentation
  • ESLint and TypeScript strict mode

Testing & Quality:

  • Unit tests for CLI modules
  • Manual testing on macOS (full feature coverage)
  • Type safety with comprehensive TypeScript types
  • Error handling and logging throughout

🚧 Pending Work

Testing:

  • Automated tests for UI components (React Testing Library)
  • Integration tests for ACP message flows
  • E2E tests for user workflows
  • Cross-platform testing (Windows, Linux)

Future Enhancements:

  • Message virtualization for long conversations (performance)
  • Advanced search and filtering in session list
  • Accessibility improvements (ARIA labels, keyboard navigation)
  • Workspace-specific settings and multi-workspace support
  • Extension marketplace publication preparation

Review Focus Areas

For Reviewers

Architecture & Design:

  1. Separation of Concerns: Well-structured with dedicated modules for ACP, CLI, Session, Auth, UI
  2. Scalability: Modular architecture supports easy addition of new features
  3. Maintainability: Clear file organization, consistent naming conventions
  4. Extension Points: Hook-based architecture for easy customization

Code Quality:

  1. Type Safety: Comprehensive TypeScript types for all components (99%+ coverage)
  2. Error Handling: Try-catch blocks, error boundaries, user-friendly error messages
  3. Logging: Console logging for debugging, structured log messages
  4. Code Comments: JSDoc for public APIs, inline comments for complex logic

Testing:

  1. Unit Tests: Added for CLI detection and version management modules
  2. Integration Tests: Manual testing performed on macOS
  3. Coverage Gaps: UI components need automated tests (planned for future PR)

Performance:

  1. Caching: CLI detection, authentication tokens, session list
  2. Lazy Loading: React component lazy loading where appropriate
  3. Debouncing: Input debouncing for auto-completion
  4. Memory Management: Cleanup on component unmount, process cleanup on disconnect

Security:

  1. CSP: Content Security Policy for WebView
  2. Auth Storage: Secure storage using VSCode global state API
  3. Path Validation: File operations validate and normalize paths
  4. Command Approval: User must approve shell commands before execution

User Experience:

  1. Visual Feedback: Loading states, status indicators, progress bars
  2. Error Recovery: Clear error messages, retry options, graceful degradation
  3. Accessibility: Keyboard navigation, ARIA labels (partial implementation)
  4. Responsive Design: Works across different panel sizes

Review Checklist

  • Architecture: Review separation of concerns and module boundaries
  • ACP Protocol: Verify JSON-RPC implementation correctness
  • CLI Integration: Test CLI detection and installation flow
  • Session Management: Test session creation, loading, switching
  • Permission System: Test permission requests and approval modes
  • Tool Call Display: Verify tool call rendering and diff visualization
  • Authentication: Test auth flow and token caching
  • UI/UX: Review visual design and interaction patterns
  • Error Handling: Test error scenarios and recovery
  • Performance: Check for memory leaks and bottlenecks
  • Security: Review CSP, auth storage, path validation
  • Documentation: Review README and inline documentation
  • Build System: Verify build configuration and watch mode
  • Cross-Platform: Test on Windows and Linux (if possible)

Commit Summary

This PR includes 160+ commits across multiple feature branches, consolidated into the following major areas:

Core Implementation:

  • ✅ Complete ACP protocol implementation (JSON-RPC client, message handling)
  • ✅ CLI management system (detection, installation, version checking, path detection)
  • ✅ Session management (create, list, load, save, delete, rehydration)
  • ✅ Authentication state management with secure caching
  • ✅ File read/write operations with permission control

UI/UX Components:

  • ✅ React-based WebView with 70+ components
  • ✅ Permission drawer with interactive approval modes
  • ✅ Specialized tool call components (Edit, Read, Write, Search, Execute, Bash, Think)
  • ✅ Markdown renderer with syntax highlighting
  • ✅ Message timeline with infinite scroll
  • ✅ Session selector with date grouping
  • ✅ Input form with auto-completion
  • ✅ Comprehensive icon system

Developer Experience:

  • ✅ Build system with esbuild, Tailwind CSS, PostCSS
  • ✅ Hot reload in development mode
  • ✅ Two debug configurations (from root / from extension dir)
  • ✅ ESLint and TypeScript configuration
  • ✅ Comprehensive README with setup instructions

Infrastructure:

  • ✅ Type definitions for all ACP messages and responses
  • ✅ Custom React hooks for state management
  • ✅ Utility functions (diff, time, session grouping)
  • ✅ Windows encoding fix for shell output
  • ✅ Copyright header updates (Qwen Team, Apache 2.0)

Summary

This PR delivers a production-ready VSCode extension for Qwen Code, transforming the CLI tool into a full-featured IDE integration. The implementation includes:

🎯 Core Achievements:

  • Complete ACP Integration: Full protocol implementation with JSON-RPC messaging
  • Rich UI: 70+ React components providing modern, responsive interface
  • Seamless CLI Integration: Automatic detection, installation, and version management
  • Session Management: Full lifecycle support with history and rehydration
  • Permission System: Interactive approval with always-allow/always-deny modes
  • Tool Visualization: Specialized components for each tool type with real-time status

- 新增 fs/read_text_file 和 fs/write_text_file 方法处理
- 实现精美的 Claude 风格权限请求 UI
- 优化权限请求处理逻辑,支持取消操作
- 添加日志输出以便调试
- 重构 QwenAgentManager 类,支持处理多种类型的消息更新
- 改进权限请求界面,增加详细信息展示和选项选择功能
- 新增工具调用卡片组件,用于展示工具调用相关信息
- 优化消息流处理逻辑,支持不同类型的内容块
- 调整会话切换和新会话创建的处理方式
- 新增 CliDetector 类用于检测 Qwen Code CLI 安装状态
- 在 WebViewProvider 中集成 CLI 检测逻辑
- 添加 CLI 未安装时的提示和安装引导功能
- 优化 agent 连接流程,增加 CLI 安装检测步骤
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📋 Review Summary

This PR introduces comprehensive file read/write capabilities to the Qwen Code VSCode extension with significantly improved UI/UX. The changes include new ACP protocol handlers for file operations, CLI detection and auto-installation, authentication state management, and enhanced UI components for permission requests and tool call visualization.

🔍 General Feedback

  • The implementation shows good separation of concerns with dedicated classes for different responsibilities (AuthStateManager, CliDetector, QwenAgentManager)
  • The React-based webview UI with permission requests and tool call components provides a much better user experience
  • Good use of TypeScript interfaces and type safety throughout the new components
  • The addition of CLI detection and auto-installation improves the user onboarding experience
  • Authentication caching helps reduce repeated authentication prompts
  • Comprehensive error handling and logging in the new components

🎯 Specific Feedback

🔴 Critical

No critical issues identified in this review.

🟡 High

  1. File: packages/vscode-ide-companion/src/acp/AcpConnection.ts:245 - In the handleReadTextFile method, the error handling for file reading could be more specific. Consider catching specific error types (e.g., file not found, permission denied) and providing more detailed error messages to the user.

  2. File: packages/vscode-ide-companion/src/acp/AcpConnection.ts:307 - In the handleWriteTextFile method, there's a potential security concern with automatic directory creation. While convenient, automatically creating directories could be used maliciously. Consider adding validation or user confirmation for directory creation.

  3. File: packages/vscode-ide-companion/src/auth/AuthStateManager.ts:65 - The authentication cache duration is hardcoded to 24 hours. Consider making this configurable or using a more dynamic approach based on the authentication method.

🟢 Medium

  1. File: packages/vscode-ide-companion/src/utils/CliDetector.ts:52 - The CLI installation command uses npm install -g which requires elevated permissions. Consider providing alternative installation methods for users who cannot use global installations.

  2. File: packages/vscode-ide-companion/src/agents/QwenAgentManager.ts:120 - The retry logic for CLI detection could be improved with exponential backoff to avoid overwhelming the system with repeated attempts.

  3. File: packages/vscode-ide-companion/src/webview/components/ToolCall.tsx:105 - The diff view component could benefit from syntax highlighting for code content to improve readability.

  4. File: packages/vscode-ide-companion/src/WebViewProvider.ts:150 - There's some code duplication in the permission request handling. Consider refactoring to reduce duplication.

🔵 Low

  1. File: packages/vscode-ide-companion/src/acp/AcpConnection.ts:190 - Consider adding JSDoc comments to the new ACP handler methods for better documentation.

  2. File: packages/vscode-ide-companion/src/webview/App.css - The CSS file is quite large. Consider splitting it into smaller, more modular files for better maintainability.

  3. File: packages/vscode-ide-companion/src/webview/components/PermissionRequest.tsx:45 - The icon mapping could be extracted to a constants file for easier maintenance.

  4. File: packages/vscode-ide-companion/package.json - Consider adding a command to clear the authentication cache directly from the command palette for better user accessibility.

✅ Highlights

  • Excellent implementation of file read/write capabilities with proper error handling
  • Well-designed permission request UI that provides clear information to users
  • Comprehensive tool call visualization with status tracking and diff views
  • Smart CLI detection and auto-installation flow that improves user experience
  • Good authentication state management with caching to reduce repeated prompts
  • Clean React component structure with proper TypeScript typing
  • Thoughtful session management improvements with historical session loading

@tanzhenxin
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tanzhenxin commented Nov 18, 2025

This change has no impact on end users, as long as its scope is limited to the vscode-ide-companion package—and we don’t plan to publish new release to the VS Code Marketplace.

Therefore, it’s safe to merge all such commits for now. The implementation is still a bit rough, we can refine the details once the MVP version is ready. @pomelo-nwu

- 将 WebView 调整到编辑器右侧
- 添加 ChatHeader 组件,实现会话下拉菜单
- 替换模态框为紧凑型下拉菜单
- 更新会话切换逻辑,显示当前标题
- 清理旧的会话选择器样式
基于 Claude Code v2.0.43 UI 分析实现。
- 抽离初始化代理连接逻辑到单独的方法中
- 优化面板恢复时的代理连接流程
- 移除 EmptyState 组件中的信息横幅
- 在 App 组件中添加可关闭的信息横幅
- 调整输入表单样式,移除冗余样式
- 抽离初始化代理连接逻辑到单独的方法中
- 优化面板恢复时的代理连接流程
- 移除 EmptyState 组件中的信息横幅
- 在 App 组件中添加可关闭的信息横幅
- 调整输入表单样式,移除冗余样式
…jinjing/implement-ui-from-cc-vscode-extension
- 更新文件命名规则,使用小写字母和下划线
- 修复部分代码导入路径
- 删除未使用的 WEBVIEW_PIN_FEATURE.md 文件
- 新增多个工具调用组件,分别处理不同类型的工具调用
- 优化工具调用卡片的样式和布局
- 添加加载状态和随机加载消息
- 重构 App 组件,支持新的工具调用显示逻辑
- 修改了 WebViewProvider 中的逻辑,先尝试通过 ACP 加载旧会话
- 如果加载失败,则创建新会话作为回退方案
- 在 AcpConnection 中添加了初始化响应的日志输出
- 在 QwenAgentManager 中添加了新的 loadSessionViaAcp 方法,用于测试 ACP 的 session/load 功能
- 在 esbuild.js 中添加 SCSS 文件处理逻辑
- 在 package.json 中添加 sass 依赖
- 新增代码使用 sass 编译 SCSS 文件,并将其注入到页面中
- 移动权限请求组件到抽屉中,优化用户体验
- 为权限选项添加编号,提高可识别性
- 实现错误对象的特殊处理,提取更有意义的错误信息
- 优化工具调用错误内容的展示,提高错误信息的可读性
- 实现了与 Claude Code 类似的代码编辑功能
- 添加了文件打开、保存等操作的支持
- 优化了消息显示,增加了代码高亮和文件路径点击功能
- 改进了用户界面,增加了编辑模式切换和思考模式功能
…jinjing/implement-ui-from-cc-vscode-extension
this.sendToWebView({
type: 'sessionTitleUpdated',
data: {
sessionId: this.currentConversationId,

Check failure

Code scanning / CodeQL

Insecure randomness High

This uses a cryptographically insecure random number generated at
Math.random()
in a security context.
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image

There seems to be such logic in the core directory, won't it be checked by github?

@yiliang114 yiliang114 changed the title Add File Read/Write Support and Enhanced UI to VSCode Extension feat(vscode-ide-companion): import chat customEditor to vscode extension folder Dec 8, 2025
…onfigurations

- Remove .claude from .gitignore
- Update CSS file path in eslint config
- Simplify VS Code extension title
- Remove unused keybinding for openChat command
- Delete unused auth constants file
- Simplify ACP connection by removing backend parameter
- Move authMethod to acpTypes
- Restrict ACP backend to Qwen only
- Remove backend property from connection state
- Minor formatting update in webview index.tsx
…ve mode handling

- Create new approvalModeTypes.ts with ApprovalMode enum and helper functions
- Replace hardcoded string literals with ApprovalModeValue type
- Consolidate mode mapping logic using new helper functions
… past conversations

- Add rehydratingSessionId flag to track session loading state
- Route message chunks as discrete messages during rehydration instead of streaming
- Update session handlers to properly manage conversation switching
- Improve session manager documentation
…ening

- Ignore messages during checkpoint saves in WebViewProvider
- Move diff auto-opening logic from useEffect to useWebViewMessages hook
- Remove unused imports and variables in EditToolCall component
- Enhance tool call handling for edit operations with diff content
- Remove commented out error handling code in acpMessageHandler
- Simplify session update handler by removing redundant comments
- Clean up chat types interface definitions
- Simplify null check in MessageRouter
- Improve type safety in SettingsMessageHandler with ApprovalModeValue type
- Remove max-width constraint from EmptyState component wrapper
- Improve responsive layout for empty state view
…pability

- Add overloaded showDiff method to support calling with only newContent
- Implement readOldContentFromFs helper to read existing file content
- Simplify IDE server openDiff tool to use minimal call site
- Improve diff manager documentation and code clarity
- Add NEXT_APPROVAL_MODE constant for cyclic mode mapping
- Remove 'plan' mode from public toggle sequence
- Simplify handleToggleEditMode implementation using NEXT_APPROVAL_MODE mapping
- Update import statements to include NEXT_APPROVAL_MODE
- Remove unused comment about plan mode in toggle sequence
…cleanup

- Add panelGroupViewColumn tracking for precise group identification
- Implement improved tab capture mechanism with delayed execution
- Add robust group cleanup logic to close empty locked columns
- Implement focusGroupByColumn helper for reliable group focusing
- Add proper error handling and fallback mechanisms for group operations
- Remove redundant file reading logic from ide-server
- Leverage diffManager's new capability to read old content internally
- Simplify openDiff tool call site to pass only newContent
- Update comments to reflect the simplified implementation
@yiliang114 yiliang114 changed the title feat(vscode-ide-companion): import chat customEditor to vscode extension folder feat: VSCode Extension Implementation Dec 9, 2025
yiliang114 and others added 4 commits December 10, 2025 01:31
…endency and improve cli version checking with semver package
…ui improvements

chore(vscode-ide-companion): remove unused todo comment in auth state manager
…tViaCommand method

refactor(vscode-ide-companion/webview): improve message handling during checkpoint saves
feat(vscode-ide-companion/markdown): enhance file path link handling with line numbers support
feat(vscode-ide-companion/message): add enableFileLinks prop to MessageContent component
feat(vscode-ide-companion/user-message): disable file links in user messages
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@yiliang114 Awesome work — this feature is super exciting! I've tested it thoroughly and everything works perfectly. This is going to be a huge help for so many IDE users. Thanks a ton for your contribution!

@pomelo-nwu pomelo-nwu merged commit a02c4b2 into QwenLM:main Dec 10, 2025
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3 participants