Inspector Updates

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Log Noise Reduction

• Fix: Reduced noisy logs in the dev server
• Update: Updated mcp-use to v1.17.4

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Widget Readiness & Iframe Global Sync Fixes

• Fix: Reset widget readiness state when widget URL changes so new iframes re-initialize correctly
• Enhancement: Improved tool output and response metadata transitions from pending to ready states
• Enhancement: Queued iframe global updates until OpenAI globals are available for more reliable widget synchronization
• Fix: Added animation frame cleanup logic to prevent memory leaks during component unmount
• Update: Updated mcp-use to v1.17.3

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Chat Conversion & Error Copy Fixes

• Fix: Copy button now copies actual error text instead of null
• Fix: Chat message conversion now falls back to parts when content is empty, with improved attachment handling
• Enhancement: Chat request streaming now uses external history for better context handling and to avoid duplicated messages
• Update: Updated mcp-use to v1.17.2

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Dependency Update

• Update: Updated mcp-use to v1.17.1

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Iframe Embedding & Reverse Proxy Support

• New: MCP_INSPECTOR_FRAME_ANCESTORS environment variable to control which origins can embed the inspector in iframes via CSP frame-ancestors
• New: mountInspector accepts devMode and sandboxOrigin options for deployment flexibility
• New: Runtime config injection (__MCP_DEV_MODE__, __MCP_SANDBOX_ORIGIN__ window globals) without rebuild
• Enhancement: Server-side widget fetches convert external proxy URLs to localhost for correct content retrieval
• Enhancement: Simplified widget asset URL rewriting for improved reverse proxy reliability
• Fix: Infinite re-render loop in MCPAppsRenderer caused by excessive useEffect dependencies
• Update: Updated mcp-use to v1.17.0

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E2E Testing & Refresh Features

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E2E Testing Infrastructure

• New: Comprehensive Playwright-based E2E test suite with full coverage for chat, connections, HMR, widgets, and command palette
• New: GitHub Actions workflow (.github/workflows/inspector-e2e.yml) for automated E2E testing across multiple modes
• New: Test fixtures for authentication servers (OAuth mock, API key, custom headers)
• New: Test helpers for connection, authentication, and debugger tools
• New: Test matrix for parameterized test scenarios across multiple inspector modes (mix, prod, builtin)
• New: Widget examples for conformance testing (weather-display, status-card, display-info, apps-sdk-only-card)
• Enhancement: Comprehensive E2E testing documentation in tests/e2e/README.md

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Testability Improvements

• Enhancement: Added data-testid attributes across 40+ UI components for reliable element selection
• Enhancement: Enhanced component accessibility for automated testing including connection forms, server list, command palette, chat interface, tool execution panels, resources/prompts/tools tabs, and elicitation/sampling displays

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UI Enhancements

• New: Refresh buttons with loading states for Tools, Resources, and Prompts tabs
• New: ListTabHeader component with refresh functionality and spinning icon animation
• Enhancement: Manual refresh capability for primitives without reconnecting to server
• Fix: Inspector now detects when server= query parameter contains a URL that’s not already connected and automatically redirects to use autoConnect= instead
• Enhancement: Added comprehensive URL parameters documentation page to inspector reference

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Widget Improvements

• Fix: Widget pending state now correctly emulated to reflect ChatGPT behavior
• Enhancement: MCPAppsRenderer and OpenAIComponentRenderer handle tool output and metadata more effectively
• Enhancement: Immediate rendering of widgets even when results are pending
• Enhancement: MessageList and ToolResultRenderer support immediate rendering of widget tools
• Enhancement: Widget props support in ToolResultDisplay

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Server Improvements

• Enhancement: Changed default port from 3001 to 3000 for production builds (dev still uses 3001)
• Enhancement: Skip telemetry (PostHog/Scarf) when NODE_ENV=test or MCP_USE_ANONYMIZED_TELEMETRY=false
• New: start-auth-servers.ts utility for running authentication test servers

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Dependencies

• Update: Updated mcp-use to v1.16.4

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Dependency Update

• Update: Updated mcp-use to v1.16.3

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Inspector Fixes

• Fix: Widget pending state now correctly emulated to reflect ChatGPT behavior
• Fix: Inspector now detects when server= query parameter contains a URL that’s not already connected and automatically redirects to use autoConnect= instead
• Update: Updated mcp-use dependency to v1.16.2

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Dependency Update

• Update: Updated mcp-use dependency to v1.16.1

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Chat Prompts & Multimodal Support

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Chat Prompts

• New: Prompts in Chat - type / to open a prompt, run it, and include its result in the thread before sending
• Note: Prompts with arguments are not yet supported in this release

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Multimodal Support

• New: Image attachment support in Inspector chat
• New: Upload and send images to vision-capable LLMs (GPT-4o, Claude, Gemini) using the paperclip button
• Enhancement: MCP prompts that return images are now properly displayed instead of showing raw JSON
• Enhancement: Full multimodal support for image content in chat interface

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Dependencies

• Update: Updated mcp-use to v1.16.0

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Theme URL Parameter Fix

• Fix: Enable dark mode through theme URL parameter
• Update: Aligned with mcp-use v1.15.3

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HMR File Watcher Fix

• Fix: HMR file watcher exhausting inotify limits by properly ignoring node_modules
• Fix: Prevented ENOSPC errors in containerized environments caused by watching files inside node_modules/
• Update: Aligned with mcp-use v1.15.2

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Dependency Update

• Update: Updated mcp-use to v1.15.1

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MCP Apps Support & Landing Pages

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MCP Apps Support

• New: Dual-protocol support enabling widgets to work with both MCP Apps and ChatGPT Apps SDK
• New: MCPAppsRenderer component for advanced debugging and visualization
• New: MCPAppsDebugControls component for widget debugging
• New: Sandboxed iframe support with console logging and safe area insets for isolated widget rendering
• New: Widget adapters (MCP Apps, Apps SDK) with protocol helpers for seamless cross-protocol compatibility

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Landing Pages

• New: HTML landing page support for MCP server endpoints
• New: Connection instructions for Claude Code, Cursor, VS Code, VS Code Insiders, and ChatGPT
• Enhancement: Browser host normalization for server connections

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Bug Fixes & Security

• Fix: MCP server landing now shows the external URL instead of the internal URL
• Fix: Zod JIT compilation to prevent CSP violations in sandboxed environments
• Security: Fixed vulnerabilities in dependencies

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Dependencies

• Update: Updated mcp-use to v1.15.0

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UI Enhancements & Connection Handling

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UI Enhancements

• Enhancement: CustomHeadersEditor with improved focus management and title prop support
• Enhancement: Standardized proxy configuration - renamed customHeaders to headers in InspectorDashboard and ServerConnectionModal for consistency

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Widget Security

• Enhancement: Widget security headers with frame domain support
• Enhancement: Added frame_domains to widgetCSP interface for iframe embed control
• Enhancement: Updated getWidgetSecurityHeaders to include frame_domains in CSP for OpenAI compatibility
• Enhancement: CSP handling in OpenAIComponentRenderer prioritizes metadata from tool results and resources

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Connection Handling

• Enhancement: Improved server connection handling with new handleReconnect function
• Enhancement: UI elements reflect connection states more accurately with better hover effects and error displays
• Enhancement: Enhanced error handling for unauthorized connections with clearer user feedback
• Enhancement: State management for connecting servers in InspectorDashboard

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Dependencies

• Update: Aligned with mcp-use v1.14.2 improvements

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Tool Output Display Fix

• Fix: Inspector tool output now displays at full height for better content visibility
• Update: Aligned with mcp-use v1.14.1

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RPC Message Management & LangChain Fixes

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RPC Message Management

• New: Copy functionality for RPC messages in Prompts, Resources, and Tools tabs
• New: Reusable RpcPanel component for consistent RPC message handling across tabs
• New: Export functionality for RPC messages
• Enhancement: Improved panel management with refactored ResizablePanel components

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Resource Properties Management

• New: Custom properties support for resources - dynamically configure resource properties
• New: PropsSelect component for intuitive property selection and management
• New: PropsConfigDialog with AI-powered property suggestions using Claude
• New: SchemaFormField component for rendering JSON schema-based forms
• New: usePropsLLM hook leveraging Claude for intelligent property suggestions
• New: useResourceProps hook for managing resource props state

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Inspector Improvements

• Enhancement: Extracted MCP prompts logic into reusable useMCPPrompts hook
• Enhancement: Server metadata display with website URLs and icons
• Enhancement: Better tool management - cleared selected tools when removed from list
• Enhancement: Enhanced JSONDisplay with improved line wrapping and font size for better readability
• Enhancement: ToolExecutionPanel now includes collapsible description section
• Enhancement: Integrated JSON metadata visualization in tool execution panel
• Enhancement: McpUIRenderer and OpenAIComponentRenderer support customProps parameter
• Enhancement: ResourceResultDisplay with dynamic property configuration UI
• Enhancement: Enhanced Prism theme support for better code highlighting
• Enhancement: Updated useMcp hook to expose mcpServerUrl for resource operations

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Bug Fixes

• Fix: Resolved Anthropic tool_use.id required error with LangChain 1.3.10 update
• Fix: Proper tool_call ID generation ensuring unique IDs for all tool_use blocks
• Fix: Improved backward compatibility by checking both ‘headers’ and ‘customHeaders’

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Dependencies

• Update: @langchain/anthropic to 1.3.10
• Update: @langchain/core to 1.1.15
• Update: langchain to 1.2.10
• Update: react-resizable-panels to 4.4.1

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Dependency Update

• Enhancement: Updated mcp-use dependency to latest version

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OAuth Proxy URL Handling Improvements

• Enhancement: Improved OAuth proxy URL derivation from callback URLs
• Enhancement: Better handling of root path callbacks in OAuth flow
• Enhancement: Clearer separation between OAuth proxy URLs and connection URLs
• Fix: Maintains valid OAuth tokens across sessions by not clearing OAuth storage before connecting

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URL Validation & LocalStorage Enhancements

• Enhancement: Automatically prepends “https://” to URLs without protocol for better user experience
• Enhancement: Improved URL validation logic in InspectorDashboard and ServerConnectionModal
• Enhancement: Added localStorage clearing functionality for MCP-related items to help with troubleshooting
• Fix: Enhanced localStorage checks to verify both existence and functional methods before usage
• Fix: Clear stale OAuth storage before connecting to ensure fresh authentication flow

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Chat Stop Functionality

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Chat Functionality

• New: Stop functionality for chat responses - users can now abort streaming responses
• New: Export stop function from useChatMessagesClientSide hook connected to abortControllerRef
• New: abortControllerRef added to useChatMessages hook for proper abort control
• Enhancement: Stop button connected to abort streaming responses for better user control

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UI & Authentication

• Enhancement: Simplified authentication button logic in InspectorDashboard
• Enhancement: Updated multi-server example to link directly to authentication URL
• Fix: Updated dependency hono to 4.11.4

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Dependency Update

• Enhancement: Updated mcp-use dependency to latest version

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OAuth & Metadata Enhancements

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OAuth & Client Info

• Enhancement: Enhanced OAuth proxy to support gateway/proxy scenarios (e.g., Supabase MCP servers)
• Enhancement: Client info support with branding displayed on OAuth consent pages
• Enhancement: Server metadata caching for immediate display on reconnect - improves UX by showing server info instantly
• Enhancement: Improved logging middleware for API routes with better debugging visibility
• Enhancement: Enabled OAuth proxy logging for better flow visibility

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Favicon Detection

• Enhancement: Enhanced favicon detector to try all subdomain levels (e.g., mcp.supabase.com → supabase.com → com)
• Enhancement: Detection of default vs custom favicons using JSON API response
• Enhancement: Prefer non-default favicons when available

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Bug Fixes

• Fix: Remove import from “mcp-use” which causes langchain import in server
• Enhancement: Enhanced synchronization for tools, prompts, and resources during HMR

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Connection Fix

• Fix: Autoconnect now correctly parses config objects in addition to string URLs

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Security Fixes & OAuth Improvements

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Security Fixes

• Security: Fixed 13 vulnerabilities (3 moderate, 10 high)
• Security: Updated langchain to 1.2.3 (fixes serialization injection vulnerability)
• Security: Updated @langchain/core to 1.1.8 (fixes serialization injection vulnerability)
• Security: Updated react-router to 7.12.0 (fixes XSS and CSRF vulnerabilities)
• Security: Added overrides for qs and preact vulnerabilities

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OAuth & Connection Improvements

• Fix: Resolved OAuth flow looping issue by removing duplicate fallback logic
• Enhancement: Simplified connection handling with consolidated state management
• Enhancement: Enhanced OAuth authentication flow with improved connection settings
• Enhancement: Improved auto-connect functionality with better proxy handling and error management
• Enhancement: Enhanced theme toggling with dropdown menu for better UX and accessibility
• Enhancement: Updated OAuth flow management in browser provider and callback handling

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Automatic Proxy Fallback & Reconnect

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Breaking Changes (with Deprecation Warnings)

• Breaking: Renamed customHeaders to headers across all APIs. Old name still works but shows deprecation warnings.
• Breaking: Renamed samplingCallback to onSampling for consistency. Old name still works but shows deprecation warnings.

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New Features

• New: Reconnect functionality for failed connections - reconnect button in InspectorDashboard UI
• New: Reconnect option in dropdown menu for failed connections
• New: Configurable clientInfo support for MCP connection initialization with full metadata
• New: Automatic Proxy Fallback - automatically retries failed connections through proxy
• New: OAuth Proxy Support with oauthProxyUrl configuration

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Improvements

• Enhancement: Better detection of OAuth discovery failures, CORS errors, and connection issues
• Enhancement: OAuth provider uses original target URL for discovery, not proxy URL
• Enhancement: HttpConnector automatic reconnection disabled, shifting responsibility to higher-level logic for better control

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Bug Fixes

• Fix: Custom headers now correctly included when copying connection configuration from saved tiles
• Fix: Headers correctly read from localStorage where stored in proxyConfig.customHeaders

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Security Update

• Security: Updated @modelcontextprotocol/sdk to 1.25.2 (fixes ReDoS vulnerability in UriTemplate regex patterns)
• Fix: Updated building script to correctly export types for inspector/client components

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Multi-Server Support & Browser Compatibility

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Breaking Changes

• Breaking: Removed winston dependency. The logging system now uses a simple console logger that works in both browser and Node.js environments.

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Multi-Server Support

• New: Multi-server management with McpClientProvider to manage multiple MCP server connections
• New: Dynamic addition and removal of servers in React applications
• New: Pluggable storage system with LocalStorageProvider and MemoryStorageProvider for flexible server configuration persistence
• Enhancement: Refactored useMcp hook for better multi-server support
• Enhancement: Removed obsolete McpContext (replaced with McpClientProvider)

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UI & UX Improvements

• Enhancement: Improved UI responsiveness with enhanced mobile and tablet layouts and adaptive component visibility
• Enhancement: Better server management with refactored server connection handling, improved icon display, and status tracking
• Enhancement: Enhanced debugging with detailed logging in Layout and useAutoConnect components for better monitoring of server connection states
• Enhancement: Simplified connection settings by removing deprecated transport types
• Enhancement: Improved server icon support and component interactions
• Enhancement: Added embedded mode support
• New: Support for passing tab as query parameter for direct navigation
• New: Prompt rendering support with enhanced display
• New: Add to Client dropdown for quickly adding MCP servers to Cursor, VS Code, Claude Desktop, and CLI tools

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Browser Compatibility

• Enhancement: Enhanced inspector components for better browser compatibility
• Enhancement: Better configuration handling and MCP proxy integration
• Enhancement: Improved browser-based MCP client with better connection handling

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Bug Fixes

• Fix: Query URL handling in built mode now preserves arguments correctly
• Fix: Server connection retrieval in OpenAIComponentRenderer to directly access connections array
• Fix: Add client SDKs to add to client dropdown
• Fix: Respect query tab parameter when existing server is already connected

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Documentation Updates - Enhancement: Updated examples and documentation

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Bug Fixes - Fix: Widget props not picked up when using Zod schemas

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Session Management & Architecture Improvements

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Breaking Changes

• Breaking: WebSocket transport support removed. Use streamable HTTP or SSE transports instead.
• Breaking: LangChain adapter moved from main entry point to mcp-use/adapters subpath.

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Session Management

• Enhancement: Support for pluggable session management architecture with Redis support
• Enhancement: Improved session persistence and connection handling
• Enhancement: Better support for distributed deployments with cross-server notifications

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Inspector Features

• Enhancement: Enhanced connection handling with automatic 404 handling and re-initialization
• Enhancement: Improved tool, resource, and prompt management
• Enhancement: Better integration with session management architecture
• Enhancement: Enhanced debugging capabilities with better error handling

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Widget Support

• Enhancement: Improved widget rendering and debugging for ChatGPT Apps
• Enhancement: Better widget data handling and state management
• Enhancement: Enhanced OpenAI component renderer with improved functionality

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UI Improvements

• Enhancement: Better connection settings UI
• Enhancement: Improved server management interface
• Enhancement: Enhanced tool result display and formatting

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Dependency Updates - Enhancement: Updated dependencies

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Dependency Updates - Enhancement: Updated dependencies

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Dependency Updates - Enhancement: Updated dependencies

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Bug Fixes - Fix: Deno 3 compatibility fixes

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Bug Fixes - Fix: Updated Zod error handling

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Bug Fixes - Fix: Zod import in official SDK - Enhancement: Added

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Elicitation Support & API Improvements

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Breaking Changes

• Breaking: Server API renamed createMCPServer() factory function to MCPServer class constructor
• Breaking: Session API replaced session.connector.tools, session.connector.callTool(), etc. with direct methods: session.tools, session.callTool(), etc.
• Breaking: OAuth environment variables standardized to MCP_USE_OAUTH_* prefix

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New Features

• New: Elicitation support in inspector - servers can request user input through clients
• New: Client Capabilities API with ctx.client.can() and ctx.client.capabilities()
• New: Session Notifications API with ctx.sendNotification() and ctx.sendNotificationToSession()
• New: Session Info API with ctx.session.sessionId to access current session ID
• New: Resource Template Flat Structure support with uriTemplate directly on definition
• New: Resource Template Callback Signatures supporting multiple signatures

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Improvements

• Enhancement: Enhanced type inference for resource template callbacks
• Enhancement: Client capabilities tracking during initialization
• Enhancement: Major documentation refactoring and restructuring
• Enhancement: Edge runtime support improvements
• Enhancement: Transport bug fixes

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Elicitation Support - New: Added support for elicitation in inspector,

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Dependency Updates - Enhancement: Updated dependencies

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Sampling Support - New: Added sampling support in inspector with LLM

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Dependency Updates - Enhancement: Updated dependencies

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Bug Fixes - Fix: Fixed bin entry issue for pnpm installation -

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OAuth Authentication System

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New Features

• New: Complete OAuth 2.0 authentication framework with built-in providers (Auth0, WorkOS, Supabase, Keycloak)
• New: OAuth middleware and routes for server-side OAuth flow handling
• New: OAuth callback component in inspector for authentication flows
• New: Context storage with async local storage for request-scoped context
• New: Response helpers for standardized HTTP responses and error handling
• New: Runtime detection utilities for Node.js, Bun, and Deno environments

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Inspector Enhancements

• Enhancement: Enhanced useMcp hook with improved connection management and OAuth support
• Enhancement: Enhanced inspector dashboard with OAuth configuration UI
• Enhancement: Better authentication flow handling with OAuth integration
• Enhancement: Improved auto-connect with enhanced connection recovery
• Enhancement: Enhanced HTTP connectors with OAuth token handling

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UI Improvements

• Fix: Fixed scrolls in tools, resources, and prompts tab
• Fix: Fixed models and API keys box in inspector chat
• Fix: Fixed rendering of table, inline-code, code and images in inspector chat
• Fix: Fixed padding of RPC panels
• New: Added enum input display for tools
• Enhancement: Bundle minification (9.7mb → 4.2 mb)

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Bug Fixes

• Fix: Switched to fork SDK to fix Zod errors on Deno runtime
• Fix: Optimized dependencies

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Dependency Updates - Enhancement: Updated dependencies

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Dependency Updates - Enhancement: Updated dependencies

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Bug Fixes - Fix: Fixed auto-connect proxy fallback behavior - Fix:

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Notifications, Sampling & OpenAI Apps SDK Integration

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New Features

• New: Bidirectional notification support between clients and servers
• New: LLM sampling capabilities allowing MCP tools to request completions from connected clients
• New: Widget build ID support for cache busting in widget UI resources
• New: Inspector notifications tab with real-time display
• New: Server capabilities modal showing supported MCP features
• New: RPC message logging support in inspector

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OpenAI Apps SDK Integration

• New: McpUseProvider component combining React setup (StrictMode, ThemeProvider, BrowserRouter, ErrorBoundary)
• New: WidgetControls component with debug overlay and view controls (fullscreen, PIP)
• New: useWidget hook for type-safe React adapter to OpenAI Apps SDK API
• New: ErrorBoundary component for graceful error handling
• New: Image component handling data URLs and public file paths
• New: ThemeProvider for consistent theme management
• New: WidgetInspectorControls for inspector-specific debugging
• New: Console proxy toggle for iframe console logs
• New: Product search result widget template with carousel and accordion components
• New: Folder-based widget support with automatic detection
• New: Public folder support for static assets

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Inspector Enhancements

• Enhancement: Enhanced OpenAIComponentRenderer with better height calculation and theme support
• Enhancement: Enhanced ToolResultDisplay with multiple content types (text, image, audio, resource links)
• Enhancement: Resizable panels with collapse support
• Enhancement: Better widget security headers and CSP configuration
• Enhancement: Enhanced widget data handling and state management

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Improvements

• Enhancement: Refactored HTTP transport to reuse sessions across requests
• Enhancement: Session management with tracking and automatic cleanup
• Enhancement: Roots support in connectors and session API
• Enhancement: Enhanced search_tools with metadata
• Enhancement: Improved SSR configuration with proper Vite settings

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Bug Fixes

• Fix: Fixed iframe height calculation issues
• Fix: Fixed theme flashing on widget load
• Fix: Fixed CSP header generation for dev mode
• Fix: Fixed asset loading in dev widget proxy
• Fix: Fixed console logging in iframe
• Fix: Fixed widget state inspection
• Fix: Fixed resizable panel collapse behavior

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Bug Fixes & Improvements - Fix: Fixed auto-connect proxy fallback

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Code Mode Support - New: Code Mode feature allowing agents to execute

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Bug Fixes - Fix: Various bug fixes and improvements

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Edge Runtime Support - Major: Migrated to Hono framework for edge

• New: Enhanced inspector dashboard with improved connection handling - Enhancement: Better auto-connection logic with error handling and retry mechanisms

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Bug Fixes & Improvements - Fix: Various bug fixes and stability

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Bug Fixes & Improvements - Fix: Various bug fixes and stability

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Bug Fixes - Fix: Various bug fixes and improvements

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LangChain 1.0.0 Support - Major: Support for LangChain 1.0.0 - Fix:

​

Dependency Updates - Enhancement: Updated dependencies

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Dependency Updates - Enhancement: Updated dependencies

​

Dependency Updates - Enhancement: Updated dependencies

​

Dependency Updates - Enhancement: Updated dependencies

​

Dependency Updates - Enhancement: Updated dependencies

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Dependency Updates - Enhancement: Updated dependencies

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Dependency Updates - Enhancement: Updated dependencies

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Dependency Updates - Enhancement: Updated dependencies

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Bug Fixes - Fix: Fixed inspector chat formatting

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Bug Fixes - Fix: Fixed inspector chat - Fix: Fixed inspector shadow

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Major Refactoring & Apps SDK Support

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Major Refactoring

• Refactor: Server architecture refactored with major improvements to routing and middleware
• Refactor: Removed legacy mcp-inspector.ts file in favor of modular architecture
• Refactor: Added new cli.ts for improved command-line interface handling
• Refactor: Added utils.ts and shared-utils-browser.ts for better code organization
• Refactor: Enhanced shared-routes.ts with improved route handling and error management

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Apps SDK Support

• Enhancement: Enhanced widget data handling and state management
• New: Added readResource method in MCPInspector for fetching resources based on server ID
• Enhancement: Enhanced OpenAI component renderer to utilize serverId and readResource
• Enhancement: Improved safe data serialization for widget state management

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UI/UX Improvements

• Enhancement: Enhanced ConnectionSettingsForm with copy configuration feature
• Enhancement: Updated OpenAIComponentRenderer to dynamically adjust iframe height
• Enhancement: Improved resource display with duration metrics and enhanced badge styling
• Enhancement: Enhanced LayoutHeader with dynamic badge styling
• Fix: Fixed scrollable tool parameters for better user experience
• Enhancement: Added mobile-responsive hiding features

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Bug Fixes

• Fix: Fixed inspector mounting logic by simplifying server URL handling
• Fix: Fixed linting issues across multiple components
• Fix: Fixed server configuration for improved stability

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Auto-Connection & Multi-Server Support - New: Auto-connection

• New: Multi-server support - enhanced support for connecting to multiple MCP servers simultaneously - New: Client-side chat functionality with improved message handling - New: Resource handling with enhanced chat components - Enhancement: Streamlined routing with refactored server and client routing - Enhancement: Enhanced connection handling with improved auto-connection logic - Enhancement: Better UI components with updated Layout, ChatTab, and ToolsTab components - Fix: Fixed connection handling in InspectorDashboard - Fix: Improved error messages in useMcp hook

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Bug Fixes - Fix: Minor fixes and improvements

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Major Refactor & Apps SDK Initial Integration

​

Major Refactoring

• Refactor: Migrated from CommonJS to ESM format
• Refactor: Added input validation for port and URL
• Refactor: Improved error handling and logging
• Refactor: Added open package for cross-platform browser launching
• Refactor: Reorganized component structure (moved to src/client/components/)
• Refactor: Refactored ChatTab to use streaming API and custom hooks
• Refactor: Enhanced InspectorDashboard with auto-connect functionality
• Refactor: Improved CommandPalette with better item selection
• Refactor: Updated routing to use query parameters

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New Components

• New: Chat components: AssistantMessage, UserMessage, ToolCallDisplay, MCPUIResource, MessageList
• New: UI components: aurora-background, text-shimmer, sheet, switch, kbd, shimmer-button, status-dot
• New: Form components: ConnectionSettingsForm, ServerDropdown
• New: Tool components: ToolExecutionPanel, ToolResultDisplay, SaveRequestDialog
• New: Resource components: ResourceResultDisplay, ResourcesList

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Apps SDK Integration

• New: OpenAI Apps SDK integration with UI resource type
• New: Enhanced MCP-UI adapter for Apps SDK metadata
• New: Resource URI format supporting ui://widget/ scheme

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Bug Fixes

• Fix: Fixed CLI binary format and package configuration
• Fix: Changed CLI build format from CommonJS to ESM
• Fix: Added input validation for port and URL arguments
• Fix: Improved error logging in API routes
• Fix: Fixed async/await bugs in static file serving