During January 2026, this developer enhanced the hashicorp/terraform-mcp-server repository by implementing a custom User-Agent header for MCP TFE API requests using Go. The new header, following Registry API conventions, allows MCP server traffic to be distinguished from other go-tfe clients, improving observability in HCP Terraform logs. This change supports more accurate usage tracking, faster debugging, and better capacity planning by enabling unified traceability and metrics for MCP server requests. The work focused on backend and API development, maintained backward compatibility, and involved cross-team collaboration through code review and co-authorship, reflecting a methodical approach to targeted infrastructure improvements.