Prompt AI Coding Assistants to Build Production-Ready Agents: 8 Essential Patterns

When you ask an AI assistant like Kiro (AWS's AI coding assistant), Claude Code, or ChatGPT to "build me an agent," you get working code. But you don't see the architecture decisions happening behind the scenes. The agent responds to queries, but it might waste tokens in reasoning loops, hallucinate answers from incomplete data, or freeze on slow APIs. These failures are silent until production. When you prompt AI coding assistants to build agents, they make architecture decisions silently—choos