Developed a cross-cutting enhancement for the raystack/frontier repository by introducing a global --header flag to all CLI subcommands, enabling users to specify custom HTTP headers for API requests. This feature was implemented in Go, focusing on robust CLI development and seamless API integration. The approach ensured consistent user experience across commands by reusing the flag logic and propagating header values throughout the request lifecycle. The work addressed integration needs with external services, proxies, and authentication flows, improving flexibility and maintainability. No major bugs were addressed during this period, as the primary focus remained on delivering production-ready, extensible tooling.