Defensive Golang coding against accidental bugs — nil panics, typed-nil interfaces, `append` backing-array aliasing, silent int64-to-int32 truncation, float `==` comparison, `defer` inside loops, defensive copies of slices and maps, and usable zero values.
Install
npx skills add samber/cc-skills-golang --skill golang-safetynpx skills add samber/cc-skills-golang --skill golang-safety -a claude-code -gnpx skills add samber/cc-skills-golang --skill golang-safety -a codex -ggemini skills install https://github.com/samber/cc-skills-golang.git --path skills/golang-safetygh skill install samber/cc-skills-golang golang-safetygit clone --depth 1 https://github.com/samber/cc-skills-golang /tmp/samber__cc-skills-golang
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/samber__cc-skills-golang/skills/golang-safety ~/.claude/skills/golang-safety # Claude Code
cp -R /tmp/samber__cc-skills-golang/skills/golang-safety ~/.agents/skills/golang-safety # Codex, Cursor, Gemini CLI, Copilot, OpenCode