Claude Code v1.0.124

What: A new permission mode that combines sandbox restrictions with automatic command approval for commands that comply with configured filesystem and network policies.

How to use:

# Enable sandboxed bash mode
claude -sb

# Or with long form
claude --sandboxed-bash

Details:

• Requires a sandbox configuration to be active in your settings.json files
• Only available when sandbox.filesystem or sandbox.network restrictions are configured
• Auto-accepts commands that comply with sandbox policies while rejecting violating commands
• Accessible via keyboard shortcut (cycles through permission modes: default → sandboxBashMode → acceptEdits → plan → bypassPermissions)
• Evidence: Permission mode added to enum at X41 line 352214, mode cycling logic in bFB() at line 427311, validation in Ku2() at line 383783

What: Claude Code now protects .git/hooks directories in all git repositories within your workspace, requiring explicit permission before modifying hook scripts.

Details:

• Scans workspace for all git repositories using .git/HEAD detection
• Automatically adds .git/hooks and .git/config to protected paths list
• Prevents unauthorized modification of pre-commit, post-checkout, and other git hooks
• Complements existing .git/config protection (present since v1.0.86)
• Evidence: New protection logic in YIA() at lines 363503-363531, filtering .git from recursive scans at line 363462

What: Server-side feature flag system that enables automatic extended thinking token allocation for specific users without requiring manual triggers.

Details:

• New API endpoint /api/oauth/claude_cli/client_data fetches user-specific configuration
• When alwaysThinking is enabled server-side, maximum thinking tokens are automatically allocated
• Thinking blocks are intelligently hidden when auto-enabled unless user explicitly requested thinking
• Does not affect manual thinking triggers or MAX_THINKING_TOKENS environment variable
• Evidence: Client data API in TWA() at line 361888, token allocation in pT() at line 362093, hiding logic at line 415872

What: API retry errors now appear as structured messages in the UI instead of console output, providing real-time feedback during retry attempts.

Details:

• Retry mechanism refactored from async function to async generator that yields error states
• New api_error system message type shows retry countdown, attempt number, and timeout settings
• Error messages include improved timeout descriptions: "Request timed out. Check your internet connection and proxy settings"
• Console logging of retries removed in favor of UI components
• Evidence: Generator function JY1() at line 394593, error message creator wQB() at line 396886, UI component YYB() at line 415692

What: The Bash tool now dynamically generates documentation based on active sandbox configuration.

Details:

• Documentation automatically includes active filesystem and network restrictions
• Shows allowed/denied paths and hosts when sandbox is configured
• Emphasizes /tmp/claude/ as the proper temporary directory in sandbox mode
• Provides clear guidance on sandbox violation handling
• Evidence: Documentation generator ql4() at line 371292, integrated into Bash tool description at line 371437

What: Permission prompts now support optional subtitles for displaying additional context.

Details:

• New subtitle parameter available in permission prompt components
• Subtitle displays next to title in a row layout with truncation support
• Currently unused but provides foundation for future enhancements (e.g., showing file paths)
• Evidence: Component rz() with subtitle at line 422454, wrapper function fO() with subtitle parameter at line 422836

What: Improved visual presentation of thinking blocks with collapsible display option.

Details:

• New "∴" (therefore) symbol for extended thinking display
• Collapsed view shows "∴ Thinking (ctrl+o to expand)" hint
• Expanded view shows "∴ Thinking…" with full content
• Smart filtering excludes tool result messages from thinking analysis
• Evidence: Display logic in BYB() at line 414832, message filter FYB() at line 415832

What: Removed unnecessary isNonInteractiveSession parameter from token counting functions.

Details:

• Functions KP2() (now NP2()) and zP2() (now LP2()) simplified
• Token counting no longer varies based on interactive vs non-interactive mode
• Evidence: Function NP2() at line 377221, function LP2() at line 377245

What: Extracted inline retry logic into dedicated helper functions for better maintainability.

Details:

• CQB(): New sleep function with AbortSignal support (line 394549)
• OE6(): Extracts retry-after header from API responses (line 394669)
• SE6(): Calculates max retries from options or environment variable (line 394738)
• Improves code organization without changing retry behavior
• Evidence: Sleep function CQB() at line 394549, header extraction OE6() at line 394669

What: Removed isNonInteractiveSession parameter from web fetch operations.

Details:

• Function jJB() (now rJB()) simplified to remove session type parameter
• Web fetching behavior now consistent across all session types
• Evidence: Function rJB() at line 417265

What: Added debug logging for slash commands included in the SlashCommand tool.

Details:

• Logs list of available slash commands when generating tool description
• Helps diagnose issues with command availability
• Evidence: Logging in w4B() at line 413120

What: Prompt history now deduplicates pasted content to reduce storage usage.

Details:

• Only stores pasted content <= 1024 characters in history
• Larger pastes are excluded from the history record
• Evidence: Content filtering in CoQ() at line 361367, size limit KoQ at line 361273

What: Session resume now supports loading messages from session history database.

Details:

• New function sb() can resume from session ID with database lookup
• Converts database message records to internal message format
• Supports resuming with checkpoints and file history snapshots
• Evidence: Resume function sb() at line 413024, message converter Fk6() at line 413062

What: Better distinction between system messages and tool result messages in error categorization.

Details:

• New cQB() function identifies post_tool_hook_feedback messages
• Function AN6() (formerly TE6()) now correctly categorizes these messages
• Evidence: Message type checker cQB() at line 396567, categorizer AN6() at line 396395

What: Improved parsing of environment variables to handle boolean types natively.

Details:

• Function aA() (formerly _B()) now accepts boolean values directly
• Previously only handled string values
• Evidence: Enhanced parser aA() at line 340564

What: Removed unnecessary isNonInteractiveSession parameter from API key functions.

Details:

• Function RX() (now PX()) no longer requires session type parameter
• Function QZB() (now CZB()) simplified similarly
• Evidence: Function PX() at line 440221, function CZB() at line 440217

What: OAuth account metadata collection function no longer requires API key parameter.

Details:

• Function AM1() (now CM1()) simplified to remove unused parameter
• Evidence: Function CM1() at line 368533

What: Removed context parameter from multi-command permission checking.

Details:

• Function Ki4() (now vi4()) and mP2() (now oP2()) no longer require context parameter
• Evidence: Function vi4() at line 378258, function oP2() at line 371695

What: Removed isNonInteractiveSession parameter from IDE tab management.

Details:

• Function IVB() (now OVB()) simplified to only require tab name and IDE client
• Evidence: Function OVB() at line 422924

What: Removed session type parameter from git history analysis.

Details:

• Function cV5() (now $F5()) no longer varies behavior by session type
• Evidence: Function $F5() at line 429518

What: Simplified bash command path extraction to remove session type dependency.

Details:

• Function wT2() (now jT2()) no longer requires isNonInteractiveSession parameter
• Evidence: Function jT2() at line 372008

What: Removed notification parameter from status bar component.

Details:

• Function LFB() (now mFB()) simplified status bar rendering
• Notification display logic integrated differently
• Evidence: Function mFB() at line 427595

What: Removed the unified rate limit status check function QQB() that was called before each API request.

Details:

• Previously checked rate limit headers before making requests
• Rate limiting now handled entirely through retry mechanism
• Evidence: Function QQB() removed from line 394273 in v1.0.123

What: Minor update to the Claude Code Review GitHub Actions workflow template.

Details:

• Variable renamed from FZB to OZB
• Content remains identical
• Evidence: Variable OZB at line 407460

What: Removed unused stream module import.

Details:

• Import statement for OFQ from "stream" removed
• Replaced with more specific PassThrough import from "stream" at line 445118
• Evidence: Removed import at line 338191 in v1.0.123, new import Lt5 at line 445118

Note: Many function and variable names changed in this release due to JavaScript minification/bundling. The functionality described above focuses on user-visible changes and meaningful internal improvements rather than cosmetic identifier changes.