effect-basics

Build typed, deterministic async workflows in TypeScript using Effect instead of Promises.

5|Updated Jan 29, 2026
One-click install
npx skills add https://github.com/agentxm/axm --skill effect-basics
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: effect-basics
Source: https://github.com/agentxm/axm/tree/main/.axm/extensions/%40axm/skills/effect-basics/src
Command: npx skills add https://github.com/agentxm/axm --skill effect-basics

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Enables developers to build typed, deterministic asynchronous workflows without relying on raw Promises.

Core Features & Use Cases

  • Implement generator-based composition with Effect.gen to orchestrate asynchronous steps.
  • Use typed errors and structured error handling via Effect.tryPromise and related helpers.
  • Enable safe, testable I/O and concurrency through Effect services and combinators like Effect.all.

Quick Start

Create a simple effect with Effect.gen to read and transform a file or data source.

Frequently Asked Questions about effect-basics

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

FAQPage Schema
How do I handle async errors in TypeScript without using raw Promises?

Use Effect.tryPromise to wrap Promise-based code and produce typed, deterministic errors. This structured error handling ensures async failures are caught and managed safely within your TypeScript workflows.

What is the best way to coordinate multiple async tasks in TypeScript deterministically?

Deterministic async task coordination is achieved with Effect.all. This combinator safely runs multiple concurrent workflows together, ensuring typed results and predictable execution order without relying on raw Promises.

How does Effect.gen work for orchestrating asynchronous steps in TypeScript?

Effect.gen uses generator-based composition to orchestrate asynchronous steps in TypeScript. It allows you to write linear, readable code that sequentially executes async operations while maintaining strict type safety.

Can I use Effect for dependency injection in TypeScript async workflows?

Yes, Effect provides shared platform services for safe, testable dependency injection. This allows you to isolate external I/O dependencies and coordinate async workflows with deterministic, typed outcomes.

Why should I use Effect instead of Promises for TypeScript async code?

Effect replaces raw Promises to provide typed errors, deterministic concurrency, and structured dependency injection. This approach eliminates untyped rejections and makes complex async workflows robust and testable.