Google, Microsoft, Salesforce, NVIDIA launch ARD spec for agent tool discovery and governance
Google and a consortium of major tech companies—Microsoft, GitHub, Hugging Face, Cisco, Databricks, GoDaddy, NVIDIA, Salesforce, ServiceNow, and Snowflake—announced the Agentic Resource Discovery (ARD) Specification, an open standard for AI agents to discover, verify, and invoke external tools and APIs across organizational boundaries. ARD complements existing protocols like the Model Context Protocol (MCP), which defines how agents invoke tools; ARD addresses the earlier discovery layer: how agents find tools in the first place.
The spec introduces two core constructs: catalogs and registries. Organizations publish a machine-readable ai-catalog.json file describing available capabilities (tools, APIs, skills, agent endpoints). Registries aggregate these catalogs and enable agents to search by task intent rather than hardcoded integrations. Trust is central: ARD includes domain-based verification mechanisms so agents validate authenticity before connecting to third-party services. The design acknowledges that in enterprises, discovery 'can't just be find something that works'—it must be governed with security and identity built in.
Early implementations are already live: GitHub's Agent Finder in Copilot and Hugging Face's Discover Tool both leverage ARD for runtime capability discovery. The specification is open and includes reference implementations, schemas, trust mechanisms, and guidelines for federation across discovery services. Contributions are expected from the community to extend governance and schema.
For platform engineers and infrastructure teams building agent frameworks, ARD signals a shift from monolithic agent definition to distributed, discoverable capability networks. The standard removes the burden of hardcoding integrations and enables autonomous capability negotiation at runtime. For vendors (Salesforce, ServiceNow), it makes their service catalogs machine-readable and tool-discoverable by agents. The broader implication: agents are moving from single-tenant orchestration to multi-tenant, federated resource discovery.
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- Google and Industry Partners Announce Agentic Resource Discovery Specification for AI Agents
“Google and industry partners have announced the Agentic Resource Discovery (ARD) Specification, an open standard designed to enable AI agents to publish, discover, and verify external tools, APIs, and services”