About This Architecture

Agent orchestration architecture with centralized control plane routing requests through API Gateway and A2A Gateway to a distributed Worker Pool. The Orchestrator enforces policies, manages state, and coordinates async task execution via Queue/Bus, while integrating external LLM APIs, MCP tools, and agent-to-agent communication. This pattern enables scalable, policy-driven agent workflows with observability and artifact management across production and management zones. Fork and customize this diagram on Diagrams.so to model your own agent mesh, add provider-specific services, or document governance layers. The separation of concerns—policy enforcement, state persistence, and sandboxed execution—supports enterprise-grade multi-tenant and multi-agent deployments.

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How do you design a scalable multi-agent orchestration system with policy enforcement and external integrations?

This diagram shows a hub-and-spoke orchestration pattern where a central Orchestrator enforces policies, manages state, and routes tasks via Queue/Bus to a Worker Pool. External agents, LLM APIs, and MCP tools integrate through dedicated gateways, enabling policy-driven, observable, and fault-isolated agent workflows.