Comprehensive Guide to Claude Code - Ultra‑Detail Agentic Coding Handbook

Comprehensive Guide to Claude Code

Claude Code is architected as a terminal‑native, event‑driven agentic system.

This guidebook provides an exhaustive, structured, and visually organized reference to every facet of Claude Code.

Inside the Guide

1. Claude Code Architecture

- Terminal‑native, event‑driven agent loop

- Streaming async generator core

- Permission‑gated tool‑use pipeline

- Compaction strategies for long sessions

- Layered context and memory management

2. Skills (SKILL.md, YAML, Best Practices)

- Full SKILL.md structure and YAML frontmatter

- Allowed tools, effort levels, hooks, and model selection

- Loading priorities across enterprise, personal, project, and plugin scopes

- Bundled and community skills overview

- Authoring and refinement best practices

3. Artifacts & Session System

- Plan files for multi‑step tasks

- Transcripts and memory files

- Session artifacts for reproducibility and analytics

4. MCP Servers

- Claude ↔ MCP ↔ external system architecture

- Server categories and use cases

- Configuration, authentication, and security management

5. Plugins Ecosystem

- Plugin structure and manifest (plugin.json)

- Hooks, agents, LSP servers, monitors, and commands

- Marketplace and community integration

6. Hooks & Automation

- Complete lifecycle events

- Handler types: command, HTTP, prompt, agent

- CI/CD enforcement patterns

- Protection against unsafe commands

7. Slash Commands

- Built‑in commands: /deploy, /review, /test

- Custom command creation and argument templates

- SDK integration for workflow automation

8. Version History & Models

- Opus 4.7 vs 4.6 comparison

- New features and performance improvements

- Security incident and architecture evolution

9. File Handling & Files API

- Supported formats and operations

- File limits and sandbox permissions

- Practical usage patterns for agentic workflows

Who It’s For



- Developers and AI engineers

- Technical leads and automation architects

- Teams building plugins, MCP integrations, or agent workflows

- Anyone who wants to master Claude Code beyond surface‑level usage