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golang-idiomatic-patterns

Go (Golang) 原生工程惯用法:错误链包装、Context 生命周期、Goroutine 泄漏防御与表驱动测试。

Skill by 2428424081cn

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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

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Go (Golang) 原生工程惯用法:错误链包装、Context 生命周期、Goroutine 泄漏防御与表驱动测试。

Use cases: backend

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/golang-idiomatic-patterns

What's inside

Skill name
golang-idiomatic-patterns
Description
Go (Golang) 原生工程惯用法:错误链包装、Context 生命周期、Goroutine 泄漏防御与表驱动测试。
License
MIT
Instructions
32 lines in SKILL.md · view on GitHub

Files (2)

  • SKILL.md
  • skill.json

SKILL.md (first lines)

# Go (Golang) 官方原生工程化规范

## 1. 错误包装与解构铁律
- **必须使用 `%w` 包装上下文**:`fmt.Errorf("find user id=%d: %w", id, err)`。
- **判断特定哨兵错误**:必须使用 `errors.Is(err, sql.ErrNoRows)`,严禁 `err == sql.ErrNoRows`。
- **类型断言自定义错误**:必须使用 `errors.As(err, &customErr)`。

## 2. Context 传递与生命周期
- 函数的第一个参数始终为 `ctx context.Context`。
- 绝不在结构体内部存储 Context,必须随方法调用链传递。
- 所有的外部网络调用、DB 查询必须接收并响应 `ctx.Done()`。

## 3. 并发安全与 Goroutine 泄漏防护
- **启动 Goroutine 前必须明确其退出机制**(通过 Context 取消或 Channel 关闭信号)。
- **Channel 必须由发送方(Producer)关闭**,严禁接收方关闭。

```go
func ProcessItems(ctx context.Context, items []Item) error {
    g, ctx := errgroup.WithContext(ctx)
    g.SetLimit(10) // 严格限制最大并发工作协程数

    for _, item := range items {
        item := item // 防止闭包变量逃逸共享
        g.Go(func() error {
            return doWork(ctx, item)
        })
    }
    return g.Wait()
}
```

From 2428424081cn/Skill-mcp, MIT.

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Last commit (this folder)
Aug 24, 2026 (2 months ago)

From GitHub (fetched Oct 24, 2026).

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License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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golang-idiomatic-patterns skill. Agent Mart. https://agentmart.dev/skills/2428424081cn-golang-idiomatic-patterns (last updated 2026-10-24)