Agentic AI Reference Architecture

Orchestration · Interface

Discoverable Delegation Interface

InterfaceOrchestrationOrchestration & Toolsarc:DiscoverableDelegationInterface

A delegation interface whose agent advertises capabilities (e.g., via an Agent Card) so collaborators can discover and select it at runtime.

Responsibility. Receives delegated tasks from collaborators that discovered it by advertised capability.

Also known as: A2A endpoint, Agent Card-advertised endpoint

Variant of Agent Delegation Interface abstract

When to choose. Choose in heterogeneous systems where agent availability fluctuates or several agents offer similar capabilities with different trade-offs, requiring runtime discovery.

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Direct neighbourhood (hover for relationship types)

Relationships

is invoked by dependency

alternative to variability

Classification

Technologies
Agent-to-Agent Protocol (A2A)
Quality attributes
Flexibility (ISO/IEC 25010)Reliability (ISO/IEC 25010 | NIST AI RMF: valid and reliable)

Sources

  1. Ch1.3: T. Nguyen, "Multi-Agent Systems," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 1.3. ISBN: 9798244538229.