Claude Code v1.0.23

🆕 Add Directory Command (/add-dir)

A new command has been added to dynamically add working directories during your session:

/add-dir <path>

Usage Examples:

• /add-dir ../my-project - Adds a relative path as a working directory
• /add-dir /home/user/projects - Adds an absolute path as a working directory

Features:

• Validates that the path exists and is a directory
• Prevents adding directories that are already accessible within existing working directories
• Provides helpful error messages if you accidentally specify a file instead of a directory

Enhanced MCP Server Management UI

The MCP (Model Context Protocol) server management interface has been completely redesigned with improved visual indicators:

• Connection Status Icons:
• ✓ Connected (green checkmark)
• ○ Connecting... (gray radio button)
• ▲ Disconnected/Needs authentication (yellow warning triangle)
• ✗ Failed (red cross)

• Server Capabilities Display: Shows available capabilities (tools, resources, prompts) for each server

• Streamlined Authentication Flow:
• Automatic authentication prompts when needed
• Re-authentication and clear authentication options
• Better error handling and status feedback

Native Binary Installation

• Switched from npm-based installation to direct binary downloads from Google Cloud Storage
• Improved platform detection supporting Windows (x64), macOS (x64/arm64), and Linux (x64/arm64)
• Added checksum verification for downloaded binaries
• More reliable update mechanism with atomic symlink updates

File Reading Enhancements

• New token-based limits for file reading with clearer error messages
• MaxFileReadTokenExceededError class provides specific token count information
• Better handling of large files with more informative error messages suggesting use of offset/limit parameters

Hook System Extensions

• Added new hook types: PreToolUse, PostToolUse, and Notification
• Improved hook matching and filtering capabilities
• Better integration with MCP tool filtering

• Added fine-grained-tool-streaming-2025-05-14 feature flag
• Improved stream handling with PassThrough streams
• Enhanced caching mechanisms for MCP client connections
• Better error handling for architecture-specific installations
• Removed legacy migration code for home directory configurations

• Fixed symlink creation issues with atomic operations to prevent corruption
• Improved error handling for unsupported architectures
• Better cleanup of temporary files during installation
• Enhanced validation for directory operations

• The native installer no longer uses npm packages (@anthropic-ai/claude-cli-native-*)
• Direct binary downloads are now used instead, which may affect custom installation scripts