solid

Apply SOLID design principles to refactor software architectures for modularity.

6|2|Updated Feb 28, 2026

Search Tags:#design #architecture #refactoring #interfaces #modularity #principles #solid

Ready to run

npx skills add https://github.com/JordanCoin/codingskills --skill solid-jordancoin

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: solid
Source: https://github.com/JordanCoin/codingskills/tree/main/skills/solid
Command: npx skills add https://github.com/JordanCoin/codingskills --skill solid-jordancoin

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

SOLID provides a structured approach to designing software where modules are cohesive, decoupled, and easy to extend, reducing fragility as systems evolve.

Core Features & Use Cases

Single Responsibility: ensure modules have a single reason to change.
Open/Closed and Dependency Inversion: enable extension without modifying existing code and invert dependencies to abstractions.
Liskov Substitution & Interface Segregation: promote interchangeable implementations and lean interfaces to reduce coupling.
Use Case: refactor a monolith into focused components with stable public interfaces to improve testability and maintainability.

Quick Start

Refactor your current module so each class or function has a single responsibility and define small, cohesive interfaces that remain stable when new features are added.

Frequently Asked Questions about solid

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

FAQPage Schema

How do I refactor a monolith into modular, testable components?▼

Refactor a monolith by enforcing single responsibility for classes and defining small, cohesive interfaces. This reduces coupling and ensures modules remain decoupled, easy to extend, and stable as new features are added.

What is the best way to reduce code coupling when extending software architectures?▼

Reduce code coupling by applying interface segregation and dependency inversion. Designing lean interfaces and inverting dependencies to abstractions enables extension without modifying existing code, reducing system fragility.

How does the Liskov substitution principle promote interchangeable implementations?▼

Liskov substitution promotes interchangeable implementations by ensuring subtypes can replace their base types without altering system correctness. This allows modules to be swapped seamlessly, reducing coupling and improving resilience.

Can I apply SOLID design principles to functional programming projects?▼

SOLID principles can be applied across both object-oriented and functional projects. They guide module boundaries, dependency management, and testability to create cohesive, maintainable software architectures regardless of paradigm.

Why does my software architecture become fragile when new features are added?▼

Software architecture becomes fragile when modules lack single responsibility and depend on concrete implementations. Applying open/closed and dependency inversion principles enables extension without modification, reducing fragility.