The protocol version the client specified if supported by the agent, or the latest protocol version supported by the agent.
The client should disconnect, if it doesn't support this version.
OptionalagentCapabilities supported by the agent.
OptionalauthAuthentication methods supported by the agent.
OptionalagentInformation about the Agent name and version sent to the Client.
Note: in future versions of the protocol, this will be required.
Optional_The _meta property is reserved by ACP to allow clients and agents to attach additional metadata to their interactions. Implementations MUST NOT make assumptions about values at these keys.
See protocol docs: Extensibility
Response to the
initializemethod.Contains the negotiated protocol version and agent capabilities.
See protocol docs: Initialization