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AWS Introduces the ARD Federated Discovery Specification: Let Agents Search for Tools Instead of Stuffing Every Schema into Context
ARD uses a unified REST search interface and `ai-catalog.json` to describe agents, MCP servers, Skills, APIs, and workflows. AWS positions it as a cross-cloud interoperability layer for Agent Registry. The specification remains a v0.9 Proposal, and identity, ranking, and actual authorization are not standardized by the discovery layer.