Detected version ('v2' or 'v3')
Array of supported major versions (e.g., [2] or [2, 3])
Supported protocols
Media buy specific features
Supported extension namespaces (e.g., 'scope3', 'garm')
OptionalpublisherPublisher domains covered by this agent
OptionalchannelsSupported advertising channels
OptionallastLast updated timestamp (if provided by server)
Whether this was synthesized from tool list (v2) or from get_adcp_capabilities (v3)
Optional_Raw response from get_adcp_capabilities (only for v3)
Normalized capabilities response that works for both v2 and v3 servers