effect-ts

Implement Effect-TS functional programming patterns in TypeScript projects.

Updated Jan 22, 2026

Search Tags:#testing #patterns #effect-ts #nextjs #functional-programming #typesafe #dependency-injection

Ready to run

npx skills add https://github.com/adophilus/norahealth --skill effect-ts-adophilus

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: effect-ts
Source: https://github.com/adophilus/norahealth/tree/main/.agents/skills/effect-ts
Command: npx skills add https://github.com/adophilus/norahealth --skill effect-ts-adophilus

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides structured guidance for implementing reliable functional programming patterns using Effect-TS in TypeScript projects, helping teams design robust error handling, dependency injection, and composable services.

Core Features & Use Cases

Idiomatic error handling with Effect-TS: typed errors, effectful control flow, and test-friendly error strategies.
Dependency injection and service composition: layers, contexts, and service patterns for scalable architectures.
Patterns and best practices: code organization, testing approaches, and Next.js integration guidance.
Use in real-world projects: building APIs, React apps, and server-side logic with confidence.

Quick Start

Create a small Effect-based workflow using Effect.gen to orchestrate a simple end-to-end task.

Frequently Asked Questions about effect-ts

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

FAQPage Schema

How do I handle typed errors in TypeScript using Effect-TS?▼

Effect-TS handles typed errors through effectful control flow and typed error channels, allowing you to define specific error types and implement test-friendly error strategies in your TypeScript services.

What is the best way to structure dependency injection in a functional TypeScript app?▼

Dependency injection in functional TypeScript is best structured using Effect-TS layers and contexts, enabling composable service patterns that scale cleanly across your application architecture.

Does Effect-TS work with Next.js for server-side logic and API routes?▼

Yes, Effect-TS integrates with Next.js to build typesafe APIs and server-side logic. You can apply functional programming patterns to orchestrate complex workflows within your Next.js applications.

How do I test services built with Effect-TS dependency injection?▼

Testing Effect-TS services relies on its composable layers to swap dependencies via contexts, providing a typesafe and testable environment without mocking frameworks.

Can I use Effect-TS to build composable workflows without prior functional programming experience?▼

Effect-TS enables building composable workflows using Effect.gen, but requires understanding functional programming concepts like typed errors and dependency injection to leverage its typesafe patterns fully.

Why should I use Effect-TS instead of plain TypeScript for error handling?▼

Effect-TS provides typesafe, composable error handling that plain TypeScript lacks, ensuring typed errors are tracked at compile time and control flow remains test-friendly across complex services.