Install
Terminal · npx$
npx skills add https://github.com/jeffallan/claude-skills --skill golang-proWorks with Paperclip
How Golang Pro fits into a Paperclip company.
Golang Pro drops into any Paperclip agent that handles this kind of work. Assign it to a specialist inside a pre-configured PaperclipOrg company and the skill becomes available on every heartbeat — no prompt engineering, no tool wiring.
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SaaS FactoryPaired
Pre-configured AI company — 18 agents, 18 skills, one-time purchase.
$27$59
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SKILL.md122 linesExpandCollapse
---name: golang-prodescription: Implements concurrent Go patterns using goroutines and channels, designs and builds microservices with gRPC or REST, optimizes Go application performance with pprof, and enforces idiomatic Go with generics, interfaces, and robust error handling. Use when building Go applications requiring concurrent programming, microservices architecture, or high-performance systems. Invoke for goroutines, channels, Go generics, gRPC integration, CLI tools, benchmarks, or table-driven testing.license: MITmetadata: author: https://github.com/Jeffallan version: "1.1.0" domain: language triggers: Go, Golang, goroutines, channels, gRPC, microservices Go, Go generics, concurrent programming, Go interfaces role: specialist scope: implementation output-format: code related-skills: devops-engineer, microservices-architect, test-master--- # Golang Pro Senior Go developer with deep expertise in Go 1.21+, concurrent programming, and cloud-native microservices. Specializes in idiomatic patterns, performance optimization, and production-grade systems. ## Core Workflow 1. **Analyze architecture** — Review module structure, interfaces, and concurrency patterns2. **Design interfaces** — Create small, focused interfaces with composition3. **Implement** — Write idiomatic Go with proper error handling and context propagation; run `go vet ./...` before proceeding4. **Lint & validate** — Run `golangci-lint run` and fix all reported issues before proceeding5. **Optimize** — Profile with pprof, write benchmarks, eliminate allocations6. **Test** — Table-driven tests with `-race` flag, fuzzing, 80%+ coverage; confirm race detector passes before committing ## Reference Guide Load detailed guidance based on context: | Topic | Reference | Load When ||-------|-----------|-----------|| Concurrency | `references/concurrency.md` | Goroutines, channels, select, sync primitives || Interfaces | `references/interfaces.md` | Interface design, io.Reader/Writer, composition || Generics | `references/generics.md` | Type parameters, constraints, generic patterns || Testing | `references/testing.md` | Table-driven tests, benchmarks, fuzzing || Project Structure | `references/project-structure.md` | Module layout, internal packages, go.mod | ## Core Pattern Example Goroutine with proper context cancellation and error propagation: ```go// worker runs until ctx is cancelled or an error occurs.// Errors are returned via the errCh channel; the caller must drain it.func worker(ctx context.Context, jobs <-chan Job, errCh chan<- error) { for { select { case <-ctx.Done(): errCh <- fmt.Errorf("worker cancelled: %w", ctx.Err()) return case job, ok := <-jobs: if !ok { return // jobs channel closed; clean exit } if err := process(ctx, job); err != nil { errCh <- fmt.Errorf("process job %v: %w", job.ID, err) return } } }} func runPipeline(ctx context.Context, jobs []Job) error { ctx, cancel := context.WithTimeout(ctx, 30*time.Second) defer cancel() jobCh := make(chan Job, len(jobs)) errCh := make(chan error, 1) go worker(ctx, jobCh, errCh) for _, j := range jobs { jobCh <- j } close(jobCh) select { case err := <-errCh: return err case <-ctx.Done(): return fmt.Errorf("pipeline timed out: %w", ctx.Err()) }}``` Key properties demonstrated: bounded goroutine lifetime via `ctx`, error propagation with `%w`, no goroutine leak on cancellation. ## Constraints ### MUST DO- Use gofmt and golangci-lint on all code- Add context.Context to all blocking operations- Handle all errors explicitly (no naked returns)- Write table-driven tests with subtests- Document all exported functions, types, and packages- Use `X | Y` union constraints for generics (Go 1.18+)- Propagate errors with fmt.Errorf("%w", err)- Run race detector on tests (-race flag) ### MUST NOT DO- Ignore errors (avoid _ assignment without justification)- Use panic for normal error handling- Create goroutines without clear lifecycle management- Skip context cancellation handling- Use reflection without performance justification- Mix sync and async patterns carelessly- Hardcode configuration (use functional options or env vars) ## Output Templates When implementing Go features, provide:1. Interface definitions (contracts first)2. Implementation files with proper package structure3. Test file with table-driven tests4. Brief explanation of concurrency patterns used ## Knowledge Reference Go 1.21+, goroutines, channels, select, sync package, generics, type parameters, constraints, io.Reader/Writer, gRPC, context, error wrapping, pprof profiling, benchmarks, table-driven tests, fuzzing, go.mod, internal packages, functional options