What problem does it solve? GitHub Actions workflows often ship with overly broad permissions, unpinned action versions, leaked secrets in logs, and inefficient caching, creating security and reliability risks in CI/CD pipelines. ## Core Features & Use Cases - Secure Defaults: Enforces least-privilege permissions, OIDC federation over long-lived credentials, and safe handling of pull_request_target triggers. - Build Quality Standards: Guides lockfile-based cache keys, pinned toolchain versions, focused matrix jobs, and shallow checkouts with fetch-depth: 1. - Deployment Governance: Structures protected environment deployments, job dependencies, and progressive rollout with rollback commands. - Use Case: When writing or reviewing a new workflow file, apply these standards to pin actions to commit SHAs, scope permissions per job, and validate triggers before merging. ## Quick Start Review my GitHub Actions workflow file and apply security and efficiency best practices to it.