What is Effect-TS in the context of Claude Code?

It is a specialized skill that allows Claude to write and refactor TypeScript code using the Effect library's functional effect system, providing better reliability and type safety.

Does it support data validation?

Absolutely, it integrates Effect Schema for robust, type-safe encoding and decoding of external data from APIs or databases.

Can this skill help with dependency injection?

Yes, it provides patterns for using Context.Tag and Layers to manage service dependencies explicitly, making your TypeScript applications more modular and testable.

How does this skill handle TypeScript errors?

It uses Effect's typed error channel to track errors in the type system, allowing Claude to handle specific failure cases using patterns like catchTag and catchAll.

Is it suitable for resource management?

Yes, it implements the acquireRelease and Scope patterns to guarantee that resources like database connections or file handles are cleaned up even during failures.

Effect-TS TypeScript Development

Name: Effect-TS TypeScript Development
Author: martinffx

bymartinffx

•

API Development

Builds robust, type-safe TypeScript applications using the Effect functional effect system for error handling, dependency injection, and resource management.

The atelier-typescript-effect-ts skill empowers Claude to architect and implement high-performance TypeScript applications using the Effect-TS ecosystem. It provides deep expertise in managing complex side effects, implementing functional patterns like generators and typed errors, and handling dependency injection through Layers and Tags. Whether you are validating data with Effect Schema, managing resource lifecycles with Scopes, or building resilient systems with built-in retry and timeout logic, this skill ensures your code follows Effect's best practices for composability and type safety.

Key Features

01Performs data validation and transformation with Effect Schema

02Utilizes Effect.gen for readable, generator-based functional code

03Manages dependency injection with Context.Tag and Layer patterns

046 GitHub stars

05Ensures resource safety through Scope and acquireRelease patterns

06Implements type-safe error handling using the Effect channel

Use Cases

01Building resilient API clients with automated retries and circuit breakers

02Architecting backend services with explicit, type-safe dependency management

03Creating complex data processing pipelines with high-performance validation

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add martinffx/claude-code-atelier atelier-typescript-effect-ts

For use in Claude.ai and ChatGPT

Download Skill