Worked on enhancing the istio/api repository by improving documentation for the networking.istio.io/exportTo annotation, focusing on clarifying its semantics to support better user onboarding and reduce configuration errors. The update explicitly explained the use of the '~' character to indicate a hidden export to no namespaces and detailed support for specifying a comma-separated list of namespace names. This documentation work, implemented using Go, HTML, and YAML, addressed common sources of ambiguity for Istio users and contributors. The changes aimed to lower support overhead, streamline onboarding, and enable more accurate configuration for those relying on exportTo semantics in Istio environments.