# Twiced Technology Gmbh Seedr Refactoring Techniques > Refactoring Techniques - Skill: `tomevault-io/twiced-technology-gmbh-seedr-refactoring-techniques` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/twiced-technology-gmbh-seedr-refactoring-techniques` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/twiced-technology-gmbh-seedr-refactoring-techniques/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/twiced-technology-gmbh-seedr-refactoring-techniques --- # Refactoring Techniques 66 classic refactoring techniques organized into 6 categories. ## Quick Reference | Category | Count | When to Use | |----------|-------|-------------| | [Composing Methods](references/composing-methods.md) | 9 | Methods too long, complex expressions, tangled local variables | | [Moving Features](references/moving-features.md) | 8 | Features in wrong class, class does too much/little | | [Organizing Data](references/organizing-data.md) | 16 | Data fields need encapsulation, type codes, magic numbers | | [Simplifying Conditionals](references/simplifying-conditionals.md) | 8 | Complex conditionals, nested if/else, null checks | | [Simplifying Method Calls](references/simplifying-method-calls.md) | 14 | Awkward method signatures, unclear naming, side effects | | [Dealing with Generalization](references/dealing-with-generalization.md) | 12 | Inheritance hierarchy issues, duplicate code across subclasses | ## Technique Selection Guide ### For Long/Complex Methods 1. **Extract Method** - Group related code into named method 2. **Extract Variable** - Break complex expressions into named parts 3. **Replace Temp with Query** - Convert temp variables to methods 4. **Replace Method with Method Object** - When local vars prevent extraction ### For Misplaced Features 1. **Move Method/Field** - Feature used more in another class 2. **Extract Class** - Class has multiple responsibilities 3. **Inline Class** - Class does almost nothing ### For Data Organization 1. **Encapsulate Field/Collection** - Public fields need protection 2. **Replace Magic Number with Constant** - Unclear numeric literals 3. **Replace Type Code with Subclasses/State-Strategy** - Type codes controlling behavior ### For Complex Conditionals 1. **Decompose Conditional** - Long if/else blocks 2. **Replace Conditional with Polymorphism** - Type-based switching 3. **Replace Nested Conditional with Guard Clauses** - Deep nesting 4. **Introduce Null Object** - Many null checks ### For Method Signatures 1. **Introduce Parameter Object** - Repeating parameter groups 2. **Preserve Whole Object** - Passing multiple values from same object 3. **Separate Query from Modifier** - Method has side effects 4. **Replace Constructor with Factory Method** - Complex object creation ### For Inheritance Issues 1. **Pull Up Method/Field** - Duplicate code in subclasses 2. **Push Down Method/Field** - Feature only used by some subclasses 3. **Extract Superclass/Interface** - Common features across classes 4. **Replace Inheritance with Delegation** - Subclass doesn't truly extend parent ## Workflow 1. **Identify the smell** - Name the specific code smell (e.g., Long Method, Large Class, Long Parameter List, Feature Envy) 2. **Select technique** - Use the selection guide above 3. **Read technique details** - Load the appropriate reference file and cite it (e.g., "See [Composing Methods](references/composing-methods.md) for full details") 4. **Show before/after** - Always include a concrete code example showing the code before and after applying the primary technique 5. **Apply incrementally** - Make small, verifiable changes 6. **Test after each step** - Ensure behavior is preserved --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/twiced-technology-gmbh) — claim your Tome and manage your conversions.