Worked on the temporalio/cli repository to deliver a new client authority feature for the Temporal CLI, introducing a --client-authority flag that enables explicit control over the gRPC authority header. This addition allows users to specify client identity and routing, which is particularly useful when connecting through proxies or operating in multi-tenant environments. The implementation involved wiring the new flag to set the Authority field in gRPC client ConnectionOptions, directly addressing a documented issue and aligning with secure configuration practices. The work was completed using Go, with a focus on CLI development and gRPC integration, emphasizing capability over bug fixes.