eng-define-service-boundary

What problem does it solve?

This Skill helps to introduce and manage side-effect boundaries in the Hifz Companion app, ensuring that pure functions and deterministic tests remain clean and maintainable.

Core Features & Use Cases

• Boundary Introduction: Establish clear boundaries for services like persistence, notifications, and file I/O.
• Deterministic Testing: Facilitates the creation of deterministic fakes for services, making tests reliable and reproducible.
• Use Case: When implementing a new feature that requires database access, use this Skill to define a boundary for the database interaction, ensuring that the rest of the code is pure and easy to test.

Quick Start

To introduce a new side-effect boundary for database access, use the eng-define-service-boundary skill and define an interface for the database operations. Implement the interface with a live implementation that interacts with the database, and wire it as a provider in the main application entry point.