CI/CD specialist for TypeScript DDD projects on GitHub Actions. Use this skill whenever: a GitHub Actions workflow is failing or missing; `tsc` reports type errors in CI; Vitest tests are red in the pipeline; the user wants to verify the project is ready to deploy or merge; or any combination of "CI is broken", "types are failing", "tests won't pass", "fix the pipeline", "deploy ready", "prepare for production", "make CI green". Covers scaffolding missing workflow files, diagnosing and fixing TypeScript errors, diagnosing and fixing Vitest failures, and running a pre-deploy readiness gate. Always invoke before touching any .yml, tsconfig, or test file in a CI context.
2026-05-29