Golang EngineerVerified Creator

• references/
• SKILL.mdopen
• README.mdopen

name:

Golang Engineer

slug:

golang-engineer

version:

v2.4.0

license:

MIT

author:

@gopher-craft

categories:

BackendDevOps / CI/CD

tags:

#golang#go#concurrency#testing#performance

description:

Idiomatic Go: goroutines done right, error handling, testing, modules, perf tuning.

// What you can do with it

• Concurrency: worker pools, fan-in/fan-out, select with ctx.Done(), errgroup.Group for bounded parallel work, sync.Once/sync.WaitGroup/sync.Mutex placed correctly. Flags goroutine leaks and missing cha
• Errors: wraps with fmt.Errorf("...: %w", err), inspects with errors.Is / errors.As, defines sentinel errors and typed errors where each fits. Discourages naked panic in library code.
• Context: threads context.Context as the first parameter, uses context.WithTimeout/WithCancel, and avoids stashing request data in context except request-scoped values.
• Testing: table-driven tests with subtests via t.Run, t.Parallel(), golden files, testing.B benchmarks, and fuzz targets (func FuzzX(f *testing.F)).
• Tooling: drives go test -race, go test -bench=. -benchmem, go vet, go test -cover, and pprof for CPU/heap profiles.