ts-ci-github-actions

When to Use This Skill

Use when you need to:

• Set up GitHub Actions CI for a new or existing TypeScript/Next.js/Turborepo monorepo
• Add lint, typecheck, test, or build jobs that only run on packages actually affected by a PR
• Wire Turborepo remote caching into CI so builds don't redo unchanged work
• Explain why CI is slow, why a cache never hits, or why a stale lockfile passed locally but failed in CI

Requires: ts-project-foundation pnpm workspace + Turborepo layout.

Trigger keywords: GitHub Actions, CI pipeline, Turborepo remote cache, turbo run, pnpm frozen-lockfile, affected packages, monorepo CI, workflow YAML, CI is slow, cache miss, TURBO_TOKEN, setup-node, pnpm install CI, PR checks, build workflow.

Freshness rule: actions/setup-node's pnpm caching support and Turborepo's remote cache signature/env vars have both changed across major versions — recheck current docs before pinning versions in a new project.