# Go

> Go (Golang) with goroutines, channels, interfaces, and idiomatic patterns. Use for .go files. Use when this capability is needed.

- Skill: `tomevault-io/go-3` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/go-3`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/go-3/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/go-3

---


# Go

A simple, fast, and concurrent language developed by Google.

## When to Use

- Microservices / Cloud-native apps
- Network tools (servers, proxies)
- High-performance systems
- CLIs

## Quick Start

```go
package main

import "fmt"

func main() {
    fmt.Println("Hello, World!")

    ch := make(chan string)
    go func() {
        ch <- "from goroutine"
    }()

    msg := <-ch
    fmt.Println(msg)
}
```

## Core Concepts

### Goroutines

Lightweight threads managed by the Go runtime.

```go
go doSomething()
```

### Channels

Typed conduits for communication between goroutines.

### Interfaces

Implicitly implemented. If a struct has the methods, it implements the interface.

## Best Practices

**Do**:

- Handle errors explicitly (check `if err != nil`)
- Use `gofmt` to format code
- Keep extensive comments for public APIs
- Use context for cancellation and timeouts

**Don't**:

- Ignore errors (using `_`) blindly
- Use panic/recover for normal error handling
- Create large interfaces (keep them small)

## References

- [Go Documentation](https://go.dev/doc/)
- [Effective Go](https://go.dev/doc/effective_go)

---
> Converted and distributed by [TomeVault](https://tomevault.io/claim/g1joshi) — claim your Tome and manage your conversions.
<!-- tomevault:4.0:skill_md:2026-04-15 -->