Claude Code v0.2.57

Based on my analysis of the diff file for version 0.2.57 of Claude Code CLI, here's the detailed changelog:

# Claude Code CLI v0.2.57 Changelog

• Project settings support: You can now configure allowed tools at the project level using .claude/settings.json
• Permissions can be defined in three scopes:
• CLI arguments (cliArg)
• Local settings (localSettings)
• NEW: Project settings (projectSettings)
• Project-level permissions are automatically loaded and respected when working in a project directory

Improved Spinner Animations

• Haiku-powered spinners: The loading spinner now generates contextual, whimsical verbs based on your input
• When typing in prompt mode, the spinner dynamically generates related action words (e.g., "Searching", "Building", "Analyzing")
• Configurable spinner styles with haiku word generation for a more engaging experience

Better Error Handling

• Enhanced error messages with clearer formatting
• New eT error class for better error content handling
• Improved truncation of long error messages in bug reports

• Shell snapshot creation: Automatically creates snapshots of shell configuration for better session persistence
• Improved shell detection and compatibility checking
• Better handling of shell configuration files (.bashrc, .zshrc, .profile)
• New tT function for setting the current working directory with validation

• (ctrl+r to expand) indicator for truncated tool results
• Cleaner output formatting for tools with image detection
• Improved visual hierarchy with better spacing and layout

• New background task management system with improved task classes:
• FL1: Base task class with status tracking
• Kb2: Background tasks using PersistentShell
• Fb2: Background tasks using new shell command system
• Better task output streaming and management

• Repository listing now warns when content exceeds 40,000 characters
• Optimized file listing with configurable ignore patterns for common directories
• Better handling of large repository structures

• Improved message validation for tool use selection
• Enhanced tool permission context management
• Better separation of concerns in permission handling

• Cleaner configuration panel with better visual organization
• Improved theme labels in settings (e.g., "Light text" instead of just "dark")
• Tab key now works alongside Enter/Space for changing settings

• New imports for better file handling: basename, extname, dirname, join, resolve
• Added EOL, platform, and homedir from OS module
• Improved stream handling with Readable and PassThrough streams

• Version bump to 0.2.57
• Updated changelog constant with current version
• Improved error tracking and telemetry
• Better handling of Git repository detection with vL1 function

• Fixed issue where messages without text or Edit tool usage were incorrectly validated
• Improved handling of shell process lifecycle
• Better error recovery in background task management

• New diffTool setting in user configuration (defaults to "terminal")
• Project settings now support permission configurations
• Enhanced settings validation with proper schemas

This update focuses on improving the developer experience with better project-level configurations, more engaging UI elements, and robust shell handling capabilities. The addition of project-level tool permissions provides better security and flexibility when working across different projects.