Building AI Agents the Right Way: Lessons from Anthropic Engineering
Why Following a Tutorial Will Make Your System Worse
2025–2026 has seen an explosion in AI Agent adoption, yet most teams keep making the same mistakes. As the Anthropic Engineering team has learned through extensive real-world experience: blindly "following a tutorial to build an Agent" will only produce a worse system.
This guide distills the core principles and practical methods for building effective, reliable Agent systems.
Principle 1: Don't Use Agents Just to Use Agents
