Comprehensive documentation of the Claude Code CLI (v2.1.88) source code, reconstructed from npm package source maps.

This analysis covers ~1884 TypeScript files across ~200 directories, documenting the architecture, tools, commands, services, utilities, UI components, and advanced features of the Claude Code CLI.

• Architecture Overview - High-level system architecture

• Main Entrypoint - CLI entry, initialization, command parsing
• Tool System - Tool abstraction & registry
• Query Engine - Query processing, LLM interaction
• Command System - Command dispatch
• State Management - AppState & state flow

• AgentTool - Sub-agent orchestration
• AskUserQuestionTool - User prompting
• BashTool - Shell command execution
• BriefTool - Context summarization
• ConfigTool - Configuration management
• EnterPlanModeTool - Plan mode activation
• EnterWorktreeTool - Git worktree creation
• ExitPlanModeTool - Plan mode deactivation
• ExitWorktreeTool - Worktree cleanup
• FileEditTool - Search-and-replace editing
• FileReadTool - File reading
• FileWriteTool - File writing
• GlobTool - Glob pattern matching
• GrepTool - Regex search
• LSPTool - Language Server Protocol
• ListMcpResourcesTool - MCP resource listing
• MCPTool - MCP tool invocation
• McpAuthTool - MCP authentication
• NotebookEditTool - Jupyter notebook editing
• PowerShellTool - PowerShell execution
• ReadMcpResourceTool - MCP resource reading
• REPLTool - Interactive REPL (Ant-only)
• RemoteTriggerTool - Remote trigger handling
• SendMessageTool - Inter-agent messaging
• SkillTool - Skill invocation
• ScheduleCronTool - Cron job management
• SyntheticOutputTool - Synthetic output generation
• TaskCreateTool - Task creation
• TaskGetTool - Task retrieval
• TaskListTool - Task listing
• TaskOutputTool - Task output retrieval
• TaskStopTool - Task cancellation
• TaskUpdateTool - Task status updates
• TeamCreateTool - Team creation
• TeamDeleteTool - Team deletion
• TodoWriteTool - Todo list management
• ToolSearchTool - Tool discovery
• TungstenTool - Tungsten integration
• WebFetchTool - URL fetching
• WebSearchTool - Web search
• KAIROS/Ant-only Tools - Feature-gated tools

• Session Commands - Session lifecycle
• Clear/Exit Commands - Session cleanup
• Config Commands - Configuration
• Settings Commands - Runtime settings
• Auth Commands - Authentication
• Review Commands - Code review
• Branch/Issue Commands - Git & issues
• MCP Commands - MCP management
• Feature Commands - Feature-specific
• Interaction Commands - Interactive session
• UI Commands - Information display
• Debug Commands - Debugging
• Remote Commands - Remote sessions
• Integration Commands - External integrations
• Misc Commands - Miscellaneous

• API Service - API client
• Analytics Service - Telemetry
• OAuth Service - Authentication
• MCP Service - MCP integration
• LSP Service - Language Server Protocol
• Compact Service - Context compaction
• Plugins Service - Plugin system
• Settings Sync Service - Cloud sync
• Team Memory Sync Service - Team memory
• Policy Limits Service - Rate limiting
• Remote Managed Settings - MDM
• Auto Dream Service - Proactive suggestions
• Extract Memories Service - Memory extraction
• Tips Service - User guidance
• Tool Use Summary Service - Usage tracking

• Auth | Config | Git
• Permissions | Settings
• Shell | Bash
• Model | Memory
• MCP | Skills
• Swarm | Telemetry
• Task | Todo
• Secure Storage | Sandbox
• GitHub | File Persistence
• Hooks | Effort/Fast Mode
• Teleport | Ultraplan
• Computer Use | Deep Link
• Worktree Mode | Advisor/Attribution

• Ink Framework - Terminal UI framework
• Components Overview - React components
• Design System - Design tokens
• Messages Components - Message rendering
• Permissions Components - Permission dialogs
• Keybindings System - Keyboard shortcuts
• Vim Mode - Vim emulation
• Spinner Components - Loading indicators

• Coordinator Mode - Multi-agent coordination
• Assistant Mode - KAIROS assistant
• Buddy System - AI companion
• Plugins System - Plugin architecture
• Skills System - Skills framework
• Voice Mode - Voice interaction

• Bootstrap - Application startup
• Migrations - Database migrations
• Hooks System - React hooks
• Context Providers - React context
• Native TS Modules - Native modules
• Schemas - Zod schemas
• Types System - TypeScript types
• Vendor Modules - Vendor code

• Message Flow - User input to LLM response
• Permission Flow - Permission request lifecycle
• Tool Execution Flow - Tool execution lifecycle
• Session Lifecycle - Session management

• Original Package: @anthropic-ai/claude-code
• Version: 2.1.88
• Source Files: ~1884 TypeScript files
• Restoration Method: Extracted from cli.js.map sourcesContent field