---
title: "Handbook Extras"
description: "Extended features and experimental tools for Claude Code Handbook."
type: skill
canonical_url: https://claudary.paisolsolutions.com/skills/readme-138
source: "Claudary"
difficulty: intermediate
author: "Claude Code Knowledge Pack"
date: 2026-07-10T11:36:10.733Z
license: CC-BY-4.0
attribution: "Handbook Extras — Claudary (https://claudary.paisolsolutions.com/skills/readme-138)"
---

# Handbook Extras
Extended features and experimental tools for Claude Code Handbook.

## Overview

# Handbook Extras

Extended features and experimental tools for Claude Code Handbook.

Companion plugin to `handbook` providing additional, experimental, or domain-specific features.

## Features

**Commands:**
- `/five-whys` - Root cause analysis using the Five Whys technique
- `/explain` - Clear explanations of code and concepts
- `/tools` - List available Claude Code tools
- `/prompt-generator` - Generate effective prompts for Claude

**Agents:**
- `deep-research-agent` - Comprehensive research with adaptive strategies
- `backend-architect` - Design reliable backend systems
- `git-diff-analyzer` - Analyze git branch differences
- `codebase-analyzer` - Understand how existing code works
- `system-architect` - Design scalable system architecture
- `pair-programmer` - Collaborative problem-solving

**Skills:**
- `structured-plan-mode` - Systematic task decomposition for complex features

## Installation

```bash
/plugin marketplace add nikiforovall/claude-code-rules
/plugin install handbook-extras
```

---

Source: [Claudary](https://claudary.paisolsolutions.com/skills/readme-138) · https://claudary.paisolsolutions.com