Agentic AI Reference Architecture

Experience · Interface

WebSocket Channel

InterfaceExperienceExperience & Human Oversightarc:WebSocketChannel

A persistent full-duplex interface, established by an HTTP upgrade handshake, over which client and server exchange messages at any time during generation.

Responsibility. Carries streamed agent output and concurrent client messages over one persistent connection.

Also known as: Bidirectional streaming channel

Variant of Streaming Transport abstract

When to choose. Choose for genuinely interactive scenarios: agents expecting mid-stream user feedback or interruption, collaborative multi-user agent sessions, or real-time dashboards whose pushed updates need client acknowledgment.

sends data tospecializesis target of alternativeToStream Interrupt Handler: sends data toStream Interrupt HandlerStreaming Transport: specializesStreaming TransportServer-Sent Events Stream: is target of alternativeToServer-Sent Events Stream
Direct neighbourhood (hover for relationship types)

Relationships

sends data to dynamic

alternative to variability

Design guidance

Classification

Patterns
Mid-stream interruptionAgent-ID-tagged multi-agent streamsServer progress status messagesClient heartbeat pings
Technologies
WebSocket
Quality attributes
Interaction capability (ISO/IEC 25010)

Sources

  1. Ch2.9: T. Nguyen, "Streaming and Real-Time Responses," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 2.9. ISBN: 9798244538229.