GitHub Actions Testing & Validation

Validate workflows locally using actionlint for syntax checking, yamllint for YAML structure, and custom validation scripts to catch cache errors, path issues, and monorepo dependency problems before deployment. Run these checks in sequence before git push to prevent failing builds.

Common cache failures stem from incorrect dependency-path configuration, missing paths, and improper build sequencing in monorepos. This Skill enforces explicit cache-dependency-path settings, root-level npm ci usage, and workspace-aware build ordering to resolve resolution errors.

Yes, use act to simulate workflow execution locally, but it alone isn't sufficient. Combine act with actionlint, yamllint, and validation scripts to catch service container misconfigurations, cache issues, and monorepo build-order problems that local simulation often misses.

Service container misconfigurations are a common CI failure source. This Skill provides guidance on proper container setup, integration with validation tools, and pre-push checks using actionlint and yamllint to identify configuration issues before deployment.

Layer validation across static analysis (actionlint, yamllint), custom script enforcement (cache paths, build sequencing), and dry-run testing with act. This multi-tool approach catches 90%+ of failures locally, eliminating push-fail-fix-push cycles.

Docker is a dependency for running act and simulating workflow execution environments locally. Combined with actionlint and yamllint, it enables comprehensive pre-push validation including service container setup and cache configuration checks.