During April 2025, this developer enhanced the elastic/apm-agent-go repository by implementing Unwrap support on the responseWriter, allowing the underlying http.ResponseWriter to be exposed to Go’s http.ResponseController. This technical approach provided full control over HTTP response operations and enabled the setting of read and write deadlines within test scenarios, improving the reliability and compatibility of Go HTTP instrumentation. The work focused on robust feature delivery rather than bug fixes, utilizing Go, net/http, and Go testing patterns. These changes accelerated the safe rollout of APM across services by reducing the risk of incorrect response handling and improving test coverage.