Worked on CI/CD pipeline hardening and efficiency improvements for the fern-api/docs repository, focusing on reducing unnecessary builds and strengthening security. Implemented token-driven gating to ensure that documentation previews run only for same-repo pull requests, which improved reliability and reduced pipeline costs. Integrated a Zizmor-based security analysis workflow to enhance code integrity and automate vulnerability detection within the CI process. Used Shell and YAML to configure GitHub Actions, introducing a graceful skip mechanism when the FER_TOKEN is unavailable. These changes delivered faster feedback cycles and more robust security checks, reflecting a methodical approach to DevOps and CI/CD optimization.