context-witness

What problem does it solve?

This Skill helps teams decide when to apply the Context Tag witness (existence) versus capability patterns (behavior) for dependency injection, enabling safer coupling and clearer architecture in Effect-style code.

Core Features & Use Cases

• Decision framework for choosing Witness vs Capability in Context Tags within applications.
• Clear guidance and concrete examples for structuring schemas and runtime context to minimize hard coupling while preserving testability.
• Use Case: selecting between injecting a serial or request identifier via a witness versus embedding it in the persisted schema.

Quick Start

Start with a small TypeScript project using Effect, decide whether a Context value should be modeled as a Witness or a Capability, and implement a minimal example reflecting that choice.