/component-flattening-analysis

name: component-flattening-analysis
description: Detects misplaced classes and fixes component hierarchy problems — finds code that should belong inside a component but sits at the root level. Use when asking "clean up component structure", "find orphaned classes", "fix module hierarchy", "flatten nested components", or analyzing why namespaces have misplaced code. Do NOT use for dependency analysis (use coupling-analysis) or domain grouping (use domain-identification-grouping).

Component Flattening Analysis

This skill identifies component hierarchy issues and ensures components exist only as leaf nodes in directory/namespace structures, removing orphaned classes from root namespaces.

How to Use

Quick Start

Request analysis of your codebase:

• **"Find orphaned classes in root namespaces"**
• **"Flatten component hierarchies"**
• **"Identify components that need flattening"**
• **"Analyze component structure for hierarchy issues"**

Usage Examples

**Example 1: Find Orphaned Classes**

User: "Find orphaned classes in root namespaces"

The skill will:
1. Scan component namespaces for hierarchy issues
2. Identify orphaned classes in root namespaces
3. Detect components built on top of other components
4. Suggest flattening strategies
5. Create refactoring plan

**Example 2: Flatten Components**

User: "Flatten component hierarchies in this codebase"

The skill will:
1. Identify components with hierarchy issues
2. Analyze orphaned classes
3. Suggest consolidation or splitting strategies
4. Create refactoring plan
5. Estimate effort

**Example 3: Component Structure Analysis**

User: "Analyze component structure for hierarchy issues"

The skill will:
1. Map component namespace structure
2. Identify root namespaces with code
3. Find components built on components
4. Flag hierarchy violations
5. Provide recommendations

Step-by-Step Process

1. **Scan Structure**: Map component namespace hierarchies 2. **Identify Issues**: Find orphaned classes and component nesting 3. **Analyze Options**: Determine flattening strategy (consolidate vs split) 4. **Create Plan**: Generate refactoring plan with steps 5. **Execute**: Refactor components to remove hierarchy

When to Use

Apply this skill when:

• After gathering common domain components (Pattern 2)
• Before determining component dependencies (Pattern 4)
• When components have nested structures
• Finding orphaned classes in root namespaces
• Preparing for domain grouping
• Cleaning up component structure
• Ensuring components are leaf nodes only

Core Concepts

Component Definition

A **component** is identified by a **leaf node** in directory/namespace structure:

• **Leaf Node**: The deepest directory containing source files
• **Component**: Source code files in leaf node namespace
• **Subdomain**: Parent namespace that has been extended

**Key Rule**: Components exist only as leaf nodes. If a namespace is extended, the parent becomes a subdomain, not a component.

Root Namespace

A **root namespace** is a namespace node that has been extended:

• **Extended**: Another namespace node added below it
• **Example**: `ss.survey` extended to `ss.survey.templates`
• **Result**: `ss.survey` becomes a root namespace (subdomain)

Orphaned Classes

**Orphaned classes** are source files in root namespaces:

• **Location**: Root namespace (non-leaf node)
• **Problem**: No definable component associated with them
• **Solution**: Move to leaf node namespace (component)

**Example**:

ss.survey/              ← Root namespace (extended by .templates)
├── Survey.js           ← Orphaned class (in root namespace)
└── templates/          ← Component (leaf node)
    └── Template.js

Flattening Strategies

**Strategy 1: Consolidate Down**

• Move code from leaf nodes into root namespace
• Makes root namespace the component
• Example: Move `ss.survey.templates` → `ss.survey`

**Strategy 2: Split Up**

• Move code from root namespace into new leaf nodes
• Creates new components from root namespace
• Example: Split `ss.survey` → `ss.survey.create` + `ss.survey.process`

**Strategy 3: Move Shared Code**

• Move shared code to dedicated component
• Creates `.shared` component
• Example: `ss.survey` shared code → `ss.survey.shared`

Analysis Process

Phase 1: Map Component Structure

Scan directory/namespace structure to identify hierarchy:

1. **Map Namespace Tree**

• Build tree of all namespaces
• Identify parent-child relationships
• Mark leaf nodes (components)

2. **Identify Root Namespaces**

• Find namespaces that have been extended
• Mark as root namespaces (subdomains)
• Note which namespaces extend them

3. **Locate Source Files**

• Find all source files in each namespace
• Map files to their namespace location
• Identify files in root namespaces

**Example Structure Mapping**:

## Component Structure Map

ss.survey/ ← Root namespace (extended) ├── Survey.js ← Orphaned class ├── SurveyProcessor.js ← Orphaned class └── templates/ ← Component (leaf node) ├── EmailTemplate.js └── SMSTemplate.js

ss.ticket/ ← Root namespace (extended) ├── Ticket.js ← Orphaned class ├── assign/ ← Component (leaf node) │ └── TicketAssign.js └── route/ ← Component (leaf node) └── TicketRoute.js

Phase 2: Identify Orphaned Classes

Find source files in root namespaces:

1. **Scan Root Namespaces**

• Check each root namespace for source files
• Identify files that are orphaned
• Count orphaned files per root namespace

2. **Classify Orphaned Classes**

• **Shared Code**: Common utilities, interfaces, abstract classes
• **Domain Code**: Business logic that should be in component
• **Mixed**: Combination of shared and domain code

3. **Assess Impact**

• How many files are orphaned?
• What functionality do they contain?
• What components depend on them?

**Example Orphaned Class Detection**:

## Orphaned Classes