Golang Concurrency Patterns

What it does

This skill enables AI agents to generate idiomatic, production-ready Go code that leverages concurrency primitives like goroutines, channels, and sync packages. It ensures implementations follow established patterns for safe data sharing and efficient parallel processing without race conditions.

When to use it

• Building high-throughput microservices that require handling thousands of simultaneous connections.
• Creating background workers or job queues where tasks must be processed concurrently.
• Designing pipelines that need to stream data between stages using buffered channels.
• Optimizing CPU-bound applications by distributing work across multiple cores safely.

Key capabilities

• Generates code utilizing goroutines for lightweight, concurrent execution.
• Implements safe communication between routines via channels.
• Applies synchronization mechanisms like mutex, waitgroup, and atomic operations.
• Structures error handling to prevent goroutine leaks during shutdown.
• Writes context-aware cancellation logic for graceful termination of long-running tasks.

Example prompts

• "Write a Go function that processes a list of URLs concurrently using goroutines and channels, returning results in order."
• "Create a worker pool pattern in Go with N workers processing jobs from a channel, ensuring proper shutdown via context."
• "Implement a fan-out/fan-in pattern to aggregate logs from multiple services into a single output stream safely."

Tips & gotchas

Ensure your prompts specify the desired number of goroutines or buffer sizes, as defaults may not suit high-load scenarios. Always request explicit handling of context.Context to avoid resource leaks in long-running services.