Agent Disco check

/.well-known/agent.json (A2A AgentCard)

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passive · Category Well-known URIs · Weight 10 · Key well_known.agent_json

Looks for an A2A AgentCard at /.well-known/agent.json (a2aprotocol.ai) and checks for the four load-bearing top-level keys: name, description, skills, endpoints. We only grade presence + shape; deep A2A capability discovery is a separate sub-product.