ci-cd-and-automation

Create a workflow file at .github/workflows/ci.yml that triggers on pull requests and pushes to main. Add sequential steps for npm ci, lint, tsc --noEmit, tests with coverage, build, and npm audit, using actions/setup-node with dependency caching.

Define a postgres service container in the job with health checks, expose port 5432, and store credentials in GitHub Secrets. Run migrations with prisma migrate deploy, then execute integration tests against the service using the DATABASE_URL environment variable.

Slow pipelines usually lack dependency caching and run jobs sequentially. Apply caching via setup-node, split lint, typecheck, and test into parallel jobs, use path filters to skip unrelated work, and shard large test suites across matrix runners.

No, trivial changes frequently break builds and CI runs quickly for small diffs anyway. The skill treats every gate as mandatory—fix lint errors rather than disabling rules, and fix failing tests rather than skipping them.

Feature flags decouple deployment from release by gating new code behind runtime checks, enabling canary rollouts and instant rollback without redeploying. Flags should follow a lifecycle from creation through full rollout to removal, since permanent flags become technical debt.

Copy the specific failure output and feed it to your AI agent with instructions to fix and verify locally before pushing. Lint failures map to npm run lint --fix, type errors to the reported location, and test failures to a debugging workflow.