effect-index

SKILL.md

Quick router to the right Effect skill based on your coding task.

Organized decision tree with 12 focused skills covering Effect fundamentals, error handling, concurrency, streams, dependency injection, HTTP, validation, data structures, logging, queues, and testing

Cross-skill pattern references linking common workflows (retries, resource management, graceful shutdown, service design) to both relevant skills and the 130+ pattern examples in the Patterns Hub

Local Effect source code reference guide with grep commands and file paths for searching implementations before coding

Tip to check the Patterns Hub decision tree first for "How do I...?" questions

Effect Skill Index

Use this as a quick router to the right Skill for your task. Each entry links to a focused Skill optimized for a coding agent’s limited context.

Decision Tree

I need to write or refactor some Effect code → Foundations

I need robust error handling/retries → Errors & Retries

I must run things in parallel / manage fibers → Concurrency & Fibers

This is a data pipeline / batching / backpressure → Streams & Pipelines

I need DI/services/layers or test/live wiring → Layers & Services

Opening files/sockets/servers with cleanup → Resources & Scope

Add HTTP endpoints / JSON responses → HTTP & Routing

Validate inputs / parse config → Config & Schema

Value-based equality / high-perf immutable collections → Data Structures

Time, logging, spans/tracing → Time/Tracing/Logging

Queues, PubSub, background workers → Queues & Background

Write tests/mocks for services → Testing & Mocking

Looking for specific patterns or examples → Patterns Hub (130+ patterns)