solid-principles

Apply SOLID design principles to Java codebases during code reviews and refactoring.

1|1|Updated Apr 16, 2026

Search Tags:#architecture #refactoring #java #design-principles #solid #code-review #clean-code

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npx skills add https://github.com/iCesofT/awesome-ai --skill solid-principles-icesoft

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: solid-principles
Source: https://github.com/iCesofT/awesome-ai/tree/main/skills/02-design-solid-principles
Command: npx skills add https://github.com/iCesofT/awesome-ai --skill solid-principles-icesoft

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

SOLID principles provide a practical checklist and Java examples to help developers write maintainable, extensible, and robust object-oriented code by enforcing clear responsibilities and proper abstractions.

Core Features & Use Cases

Covers SRP, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion with concrete Java examples.
Guides through code reviews, refactoring, and architecture planning to improve cohesion, modularity, and testability.
Use Case: When a class is doing too much, apply SOLID principles to decompose responsibilities and swap implementations with minimal impact.

Quick Start

Refactor a monolithic service into focused components (validator, repository, notifier) and demonstrate the new class responsibilities.

Frequently Asked Questions about solid-principles

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I apply SOLID design principles during a Java code review?▼

Apply SOLID design principles during Java code reviews by checking classes for clear responsibilities and proper abstractions. Use SRP, OCP, LSP, ISP, and DIP as a practical checklist to enforce modularity and testability.

What is the best way to refactor a monolithic Java service into focused components?▼

The best way to refactor a monolithic Java service is to decompose its responsibilities into focused components like validators, repositories, and notifiers. This enforces the Single Responsibility Principle for maintainable code.

When do I need to use the Liskov Substitution Principle in Java architecture?▼

You need the Liskov Substitution Principle in Java architecture when swapping implementations or extending hierarchies. It ensures subtypes can replace base types without breaking program behavior or requiring unexpected dependencies.

Does Dependency Inversion help with Java codebase testability?▼

Dependency Inversion improves Java codebase testability by enforcing proper abstractions. High-level modules depend on interfaces rather than concrete implementations, allowing you to swap dependencies with minimal impact during testing.

Why does my Java class require refactoring when it is doing too much?▼

A Java class requires refactoring when doing too much because it violates the Single Responsibility Principle. Applying SOLID principles decomposes these overloaded responsibilities into focused, extensible, and robust object-oriented components.

Can I use Interface Segregation to improve modularity in existing Java code?▼

You can use Interface Segregation to improve modularity in existing Java code by splitting large interfaces into smaller, client-specific ones. This prevents classes from depending on methods they do not use, reducing coupling.