golang-error-handling — Skills

What it does

Sub-agent 1: Error creation — validate errors.New/fmt.Errorf usage, low-cardinality messages, custom types

Sub-agent 2: Error wrapping — audit %w vs %v, verify errors.Is/errors.As patterns

Sub-agent 3: Single handling rule — find log-and-return violations, swallowed errors, discarded errors ()

Sub-agent 4: Panic/recover — audit panic usage, verify recovery at goroutine boundaries

Sub-agent 5: Structured logging — verify slog usage at error sites, check for PII in error messages

→ See samber/cc-skills-golang@golang-samber-oops for full samber/oops API, builder patterns, and logger integration

→ See samber/cc-skills-golang@golang-observability for structured logging setup, log levels, and request logging middleware

golang error handling

Source

Repository: https://github.com/samber/cc-skills-golang

golang-error-handling FAQ

What does the golang-error-handling skill do?

Idiomatic Golang error handling — creation, wrapping with %w, errors.Is/As, errors.Join, custom error types, sentinel errors, panic/recover, the single handling rule, structured logging with slog, HTTP request logging middleware, and samber/oops for production errors. Built to make logs usable at scale with log aggregation 3rd-party tools. Apply when creating, wrapping, inspecting, or logging errors in Go code. For samber/oops specifics → See `samber/cc-skills-golang@golang-samber-oops` skill; for slog handler ecosystem → See `samber/cc-skills-golang@golang-samber-slog` skill. Sub-agent 1: Error creation — validate errors.New/fmt.Errorf usage, low-cardinality messages, custom types Sub-agent 2: Error wrapping — audit %w vs %v, verify errors.Is/errors.As patterns

How do I install golang-error-handling?

Run: npx -y skills add https://github.com/samber/cc-skills-golang --skill golang-error-handling --agent claude-code — the source lives at github.com/samber/cc-skills-golang.

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