What are fibers in the context of this skill?

Fibers are lightweight threads managed by the Effect runtime, allowing for high-concurrency without the overhead of native OS threads.

Can I limit the number of parallel tasks?

Yes, the skill provides patterns for using Semaphores and concurrency options in Effect.all to strictly control parallel execution limits.

What is the difference between Effect.fork and Effect.forkDaemon?

Effect.fork creates a fiber supervised by the current scope, while forkDaemon creates a background fiber that lives independently of the parent's lifecycle.

How does this skill handle resource leaks during interruption?

It follows Effect's structured concurrency model, ensuring that child fibers are automatically interrupted and resources are cleaned up when a parent fiber finishes or fails.

Effect Concurrency & Fibers

Name: Effect Concurrency & Fibers
Author: andrueandersoncs

byandrueandersoncs

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Developer Tools

Manages high-performance parallel execution and fiber-based concurrency using structured patterns within the Effect ecosystem.

This skill empowers developers to master Effect's lightweight fiber-based concurrency model, providing specialized guidance on structured concurrency, safe interruption, and resource management. It offers implementation patterns for parallel execution using Effect.all and Effect.forEach, alongside advanced synchronization primitives like Queues, Semaphores, and PubSub. By utilizing this skill, users can build resilient, non-blocking TypeScript applications that handle complex asynchronous workflows with predictable behavior and automatic resource cleanup.

Key Features

013 GitHub stars

02Structured fiber management and supervision

03Advanced synchronization using Queues, Semaphores, and PubSub

04Racing effects for performance optimization

05Safe interruption and cancellation patterns

06Parallel execution with configurable concurrency limits

Use Cases

01Building producer-consumer patterns using concurrent Queues

02Managing complex background tasks with structured fiber supervision

03Implementing worker pools and rate-limiting for API requests

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add andrueandersoncs/claude-skill-effect-ts concurrency

For use in Claude.ai and ChatGPT

Download Skill