ExperimentalExperimentalExperimentalResolves when the subscription reaches a terminal status. Never rejects.
ExperimentalThe last SSE id: seen, replayed as Last-Event-ID on the next connect attempt.
ExperimentalExperimentalTrue once the stream reached a terminal status and will never reconnect.
A subscription to one MCP server's standalone
GET /mcpSSE stream, with bounded reconnection. Construct through McpClient.watchNotifications so the endpoint, credentials, and live session id come from the client that negotiated them.