Worked on the grafana/mcp-grafana repository to deliver enhancements to the Dashboard Update API, focusing on backend development and API design using Go. Introduced a remove-by-index operation for dashboard updates, enabling precise element removal and improving the reliability of dashboard modifications. Strengthened validation logic for the update_dashboard endpoint, clarifying UID usage and operation semantics to reduce invalid updates and enhance safety. Improved tool documentation and error messaging, which reduced misuse by large language models and provided clearer feedback to developers. Emphasized robust testing throughout the process, resulting in safer, more reliable dashboard updates and a better overall developer experience.