Building Production AI Agents: The Essential Architecture and Tools Guide

AI agents are transitioning from experimental chatbots to essential infrastructure in modern applications. This guide covers the architecture and tools needed to build agents that can handle real workflows—a capability that's rapidly becoming table stakes for SaaS, internal tools, and developer platforms. Understanding these foundations is critical as teams move beyond simple integrations to building agents that can reason, plan, and execute multi-step tasks with proper safety and retrieval mechanisms.