Google releases ARD open spec for agents to discover and verify tools across orgs

谷歌发布Agentic Resource Discovery（ARD）开放规范

Google and industry partners launched ARD, an open spec that lets agents find, verify, and connect to tools and other agents across organizational boundaries. Organizations publish a catalog under their own domain; registries crawl and index those catalogs so agents can search by plain-language intent. The spec provides verifiable trust metadata before a direct connection is made. Google Cloud already ships Agent Registry inside Gemini Enterprise Agent Platform, with governance features like namespaced URNs and egress policies. The post does not disclose pricing or a GA date.

Why it matters: Google is pushing an agent interoperability spec with a concrete mechanism, not a concept paper. But this is a spec release, not a shipped product—adoption is still far off, so it stays at 78. The post doesn't list partner names, so ecosystem backing is unclear.