Multi-Agent Systems
Scaling Multi-Agent Systems
Scalable agent products depend on queues, model routing, tool contracts, monitoring, caching, and evaluation loops.
8 min read29 June 2026Ubaith Sherif
Scale map
GatewayWorkersCacheEval
Service boundaries
Separate product workflows, model calls, retrieval, and external integrations so each part can be monitored and improved independently.
Product UI
API gateway
Workflow service
Model service
Database
Observability
Tool contracts
Each tool should define inputs, outputs, failure states, retry behavior, and audit events.
type ToolContract = {
name: string;
inputSchema: unknown;
retryable: boolean;
auditLevel: "standard" | "sensitive";
};Key takeaways
- Scalability starts with boundaries.
- Observability is required for model-backed systems.
- Evaluation should run alongside shipping.