Jylhis Go skill index
Pick the topic and read its reference before writing or reviewing Go.
| Topic | When to read | Reference |
|---|---|---|
| Modern syntax & stdlib | any vs interface{}, errors.Is/Join, slices/maps/cmp, sync.OnceFunc, context.AfterFunc/WithCancelCause, atomic generics, range-over-int, cmp.Or, http.ServeMux method+path patterns, t.Context(), omitzero, b.Loop(), iter packages, wg.Go, errors.AsType, new(value) | references/modern-syntax.md |
| Code style | idiomatic formatting, package layout, comment and doc conventions | references/code-style.md |
| Naming | identifier, package, receiver, and interface naming conventions | references/naming.md |
| Error handling | wrap vs handle vs propagate, errors.Is/As, sentinel errors, avoiding silent or duplicate logging | references/error-handling.md |
| Concurrency | goroutine lifecycle, leak-freedom, channels, sync primitives, cancellation | references/concurrency.md |
| context.Context | passing, deadlines, cancellation, values, and context propagation | references/context.md |
| Structs & interfaces | small composable interfaces, concrete return types, type design for testability | references/structs-interfaces.md |
| Performance | profile-first optimization, allocation discipline, benchmarking | references/performance.md |
| Testing | table tests, subtests, fixtures, tests as executable specs | references/testing.md |
| gopls (semantic tooling) | navigating or refactoring Go via gopls: go-to-def, find references, rename, extract/inline, diagnostics, MCP vs native LSP vs CLI | references/gopls.md |
| pkg.go.dev lookups (godig) | published-ecosystem lookups: package docs, API signatures, versions, importers, licenses, CVEs via godig | references/pkg-go-dev.md |
After reading the reference, follow its guidance for the task.