📝 Subsystem Deep Dive

types/

📁 types/ 📄 7 files

Tutorial: types

This project defines the core TypeScript type definitions that structure the Claude Code CLI. It establishes the contracts for an agentic workflow, unifying interactive commands, persistent session history, and a granular permission system with an extensible architecture for plugins and hooks, ensuring type safety across the application's lifecycle and telemetry reporting.

flowchart TD A0["Command Architecture"] A1["Session & Transcript Persistence"] A2["Permission & Safety System"] A3["Extensibility (Plugins & Hooks)"] A4["Input State Management"] A5["Telemetry & Event Contracts"] A4 -->|"Routes input to"| A1 A4 -->|"Stores deferred"| A2 A0 -->|"Manipulates"| A1 A0 -->|"Links to"| A3 A3 -->|"Influences"| A2 A5 -->|"Tracks"| A1

Chapters

  1. Command Architecture
  2. Session & Transcript Persistence
  3. Permission & Safety System
  4. Input State Management
  5. Extensibility (Plugins & Hooks)
  6. Telemetry & Event Contracts

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Files in this section

01_command_architecture.md
Chapter 1: Command Architecture
Welcome to the Command Architecture! In this project, a "Command" is the fundamental unit of action.
02_session___transcript_persistence.md
Chapter 2: Session & Transcript Persistence
In the previous chapter, Command Architecture, we learned how to make the agent perform actions. But an action without…
03_permission___safety_system.md
Chapter 3: Permission & Safety System
In the previous chapter, Session & Transcript Persistence, we gave our agent a long-term memory. It remembers where it…
04_input_state_management.md
Chapter 4: Input State Management
In the previous chapter, Permission & Safety System, we established the "Bouncer" that stops the agent from doing dange…
05_extensibility__plugins___hooks_.md
Chapter 5: Extensibility (Plugins & Hooks)
In the previous chapter, Input State Management, we learned how the system handles what the user types. But what if the…
06_telemetry___event_contracts.md
Chapter 6: Telemetry & Event Contracts
In the previous chapter, Extensibility (Plugins & Hooks), we learned how to let outside developers add new features to…