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
OptionaldidWhether the agent wants document/didChange events, and the sync kind.
OptionaldidWhether the agent wants document/didClose events.
OptionaldidWhether the agent wants document/didFocus events.
OptionaldidWhether the agent wants document/didOpen events.
OptionaldidWhether the agent wants document/didSave events.
Document event capabilities the agent wants to receive.