Use when hardening Go code at API boundaries — copying slices/maps, verifying interface compliance, using defer for cleanup, time.Time/time.Duration, or avoiding mutable globals. Also use when reviewing for robustness concerns like missing cleanup or unsafe crypto usage, even if the user doesn't mention "defensive programming." Does not cover error handling strategy (see go-error-handling).
How to install go-defensive?
cxuu/golang-skills/go-defensive
$npx -y skills add cxuu/golang-skills --skill go-defensiveInstalls into the current project.
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Run `npx skills use "https://github.com/cxuu/golang-skills" --skill "cxuu/golang-skills/go-defensive"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/cxuu/golang-skills" that are relevant to the current task. Run `npx skills add "https://github.com/cxuu/golang-skills"` and select the relevant skills, then follow their instructions.
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