Continuous integration for Go projects: GitHub Actions pipelines, caching, golangci-lint setup, test/coverage gates, vulnerability scanning, build matrices, and Makefile targets. Use when: "set up CI", "GitHub Actions for Go", "add lint to the pipeline", "CI is slow", "coverage gate", "build matrix", "write a Makefile", "run govulncheck in CI". Not for: commit conventions (git-commit), choosing or auditing dependencies (go-dependency-audit), writing the tests themselves (go-test-quality).
