Master programming principles to build high-quality, maintainable, testable and production-ready software following object-oriented design, Domain-Driven Design (DDD) tactical patterns, and rigorous testing standards.

Quick Start

This Skill provides comprehensive coding rules organized by category with severity levels. Before any coding task:

Read CODING-RULES.md to understand all applicable rules
STRICTLY follow this rules while producing or reviewing a source code
RESPECT rules by severity: Critical → High → Medium → Low
When conflicts arise: Higher severity wins, then defer to existing code patterns

When to Use This Skill

Writing new features or components
Refactoring legacy code
Debugging and fixing bugs (test-first approach)
Reviewing code for quality, maintainability, and standards compliance
Explaining design patterns, architectural decisions, and best practices

Quick Start

This Skill provides comprehensive coding rules organized by category with severity levels. Before any coding task:

Read CODING-RULES.md to understand all applicable rules
STRICTLY follow this rules while producing or reviewing a source code
RESPECT rules by severity: Critical → High → Medium → Low
When conflicts arise: Higher severity wins, then defer to existing code patterns

When to Use This Skill

Writing new features or components
Refactoring legacy code
Debugging and fixing bugs (test-first approach)
Reviewing code for quality, maintainability, and standards compliance
Explaining design patterns, architectural decisions, and best practices

Programming

Quick Start

When to Use This Skill

Programming

Quick Start

When to Use This Skill

Rule Categories Overview

Rule Severity Levels

Conflict Resolution

My Workflow

Create Instructions

Init

Everything Claude Code Conventions

Codebase Onboarding

Ui Demo