dev-go

name	dev-go
description	Phase 5 implementation in Go — language idioms, tooling, and project layout. Composes with a component skill (dev-be/dev-cli/dev-batch). Use when: the stack is Go, implementing a component skill in Go, or setting Go tooling (modules, go test) and layout.

One-Liner

The Go language layer (idioms, tooling, layout) that composes under a component skill — the component owns what, this owns how in Go.

Use with a component skill (e.g. dev-be for a service, dev-cli for a tool) — the component skill says what to build; this says how in Go. Follow ../../resources/conventions/go.md.

Delegate craft depth to the expert. For concurrency, generics, gRPC, and perf patterns load the vendored golang-pro, per ../../resources/expert-skills-map.md. This skill keeps the harness wiring; the expert supplies the depth.

Setup & tooling

• Modules (go.mod); gofmt + go vet clean; golangci-lint if the repo uses it.
• Test: _test.go, table-driven; go test ./... green before review.

Idioms

• Return error last; wrap with fmt.Errorf("...: %w", err); never discard errors.
• Pass context.Context as the first arg for cancellable/timeout-bound work.
• Small, consumer-defined interfaces; accept interfaces, return structs.
• Protect shared state; no goroutine leaks (always have a stop/return path).

Layout

• cmd/<bin>/ for entry points, internal/ for private packages, pkg/ only for shared libs.

Hand off to check-code-review then the test types selected by check-test-strategy.