During July 2025, contributed two security-focused features to the step-security/arm-int-tests repository, enhancing CI/CD pipeline guardrails and infrastructure monitoring. Developed a workflow in YAML and Shell that audits instance metadata access using IMDS, integrates security auditing actions, and schedules automated heartbeat checks for ongoing health monitoring. Additionally, implemented a workflow to simulate outbound network calls during Docker builds, enforcing stricter egress policies and standardizing runner versions for consistency. Leveraged AWS, GitHub Actions, and security auditing tools to deliver auditable, reproducible workflows that improve compliance and reduce risk. The work emphasized robust error handling and clear change history for maintainability.