assertions

What problem does it solve?

This Skill provides a centralized, project-specific assertion utility for PHP to ensure data validity and type safety across the domain layer, reducing bugs and boilerplate in value objects, aggregates, and domain services.

Core Features & Use Cases

• Custom Assert class that extends Webmozart\Assert with project-specific behavior and error handling.
• Enforces domain invariants within value object factories, aggregates, and guard clauses.
• Guides consistent usage, messaging, and testing to maintain invariant enforcement across the codebase.

Quick Start

Install project dependencies via Composer and begin using the custom Assert in your domain classes to validate inputs, enforce constraints, and throw the project's InvalidArgumentException on failure.