Concurrency

Orchestrate concurrent Effect-TS tasks using fibers, queues, and promises.

8|Updated Jan 23, 2026

Search Tags:#concurrency #Effect-TS #parallel-execution #Queue #fibers #Deferred #Semaphore

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npx skills add https://github.com/andrueandersoncs/claude-skill-effect-ts --skill concurrency-andrueandersoncs

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: Concurrency
Source: https://github.com/andrueandersoncs/claude-skill-effect-ts/tree/main/skills/concurrency
Command: npx skills add https://github.com/andrueandersoncs/claude-skill-effect-ts --skill concurrency-andrueandersoncs

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill helps developers understand and apply concurrency patterns in Effect-TS, enabling reliable parallel execution, fiber management, and synchronization primitives.

Core Features & Use Cases

Understand Fibers, forking, joining, and supervision in Effect-TS.
Use concurrency helpers like Effect.all, Effect.forEach, and queues, semaphores, and published-subscribe patterns to coordinate work.
Use case: orchestrate multiple IO-bound tasks in parallel, collect results safely, and ensure clean cancellation on failure.

Quick Start

Install the Effect-TS library and create a program that runs tasks concurrently using Effect.all or Effect.forEach.

Frequently Asked Questions about Concurrency

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

FAQPage Schema

How do I orchestrate concurrent tasks in Effect-TS?▼

Effect-TS provides built-in helpers like Effect.all and Effect.forEach to run tasks concurrently. These tools manage parallel data fetching and coordinate work safely using structured concurrency principles.

What is structured concurrency in Effect-TS and when do I need it?▼

Structured concurrency in Effect-TS ensures parallel tasks are safely managed and canceled on failure. You need it when orchestrating multiple IO-bound tasks to guarantee clean resource lifecycle handling and safe synchronization.

How do I use a Semaphore to limit parallel data fetching in Effect-TS?▼

A Semaphore in Effect-TS restricts the number of concurrently running fibers during parallel data fetching. This synchronization primitive controls throughput and prevents resource exhaustion.

Can I use queues and PubSub patterns for task coordination in Effect-TS?▼

Yes, Queue and PubSub patterns coordinate work between concurrent Effect-TS fibers. These primitives facilitate published-subscribe messaging and manage task lifecycles with proper error handling.

How do I handle fiber cancellation and errors during parallel execution in Effect-TS?▼

Handle fiber cancellation and errors during parallel execution by applying structured concurrency to ensure safe cancellation on failure. Effect-TS supervision and joining mechanisms manage clean fiber lifecycles.

When should I use a Deferred or Latch for synchronization in Effect-TS?▼

Use a Deferred or Latch for synchronization in Effect-TS when you need to coordinate fibers waiting for a specific condition or promise to resolve. These primitives manage task lifecycles and ensure safe execution.