How does this skill help prevent goroutine leaks?

It enforces patterns that use context.Context for cancellation and sync.WaitGroup or errgroup.Group to ensure every goroutine has a clear shutdown path and is properly waited upon.

Does it support modern Go features like errgroup.SetLimit?

Yes, it includes patterns for Go 1.20+ features, such as using SetLimit for simplified fan-out operations instead of manual worker pools.

When should I use channels vs mutexes in Go?

Use channels for transferring data ownership or coordinating goroutines. Use mutexes for protecting shared internal state, simple counters, or short critical sections.

Can this skill help with performance optimization?

Absolutely. It provides specific patterns for sync.Pool to reduce garbage collection pressure and singleflight to prevent expensive cache stampedes or redundant API calls.

Go Concurrency Patterns

Name: Go Concurrency Patterns
Author: deandum

bydeandum

0•

API Development

Implements safe, idiomatic concurrency workflows in Go using goroutines, channels, and synchronization primitives.

This skill provides specialized guidance for building high-performance Go applications using robust, production-ready concurrency patterns. It helps developers implement worker pools, pipelines, and rate limiters while strictly avoiding common pitfalls like goroutine leaks and data races. By leveraging standard library primitives and advanced tools from the golang.org/x/sync package, it ensures that concurrent code is not only fast but also maintainable, context-aware, and memory-efficient.

Key Features

01Advanced synchronization using errgroup, singleflight, and sync.Pool

02Automated detection of common concurrency anti-patterns and race conditions

03Standardized worker pool and fan-out/fan-in implementation patterns

04Production-ready rate limiting and request deduplication strategies

050 GitHub stars

06Context-aware goroutine management to prevent resource leaks

Use Cases

01Building high-throughput data processing pipelines and streaming systems

02Implementing efficient API clients with rate limiting and request deduplication

03Refactoring legacy Go code to use safe, modern concurrency primitives

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add deandum/go-claude-resources go-concurrency

For use in Claude.ai and ChatGPT

Download Skill