10 Key Lessons
- Three core components: Model (brain), Tools (hands), Instructions (rulebook)
- Choose the right model: Start with the smartest, then downgrade for cost/speed
- Well-defined tools are critical: Tested, documented tools reduce errors
- Clear instructions matter: Vague instructions create unpredictable agents
- Start simple: A single agent with multiple tools is often enough
- Multi-agent coordination: Manager agents delegate to specialists, or agents hand off to each other
- Guardrails are mandatory: Check inputs, block dangerous actions, filter PII and harmful content
- Design for humans: Start small, test, improve, plan for failures
- SDK makes it easy: OpenAI's SDK enables intuitive single-agent system creation
- Community learning: Share experiences, tips, and translated guides across languages
"Agents aren't hard to build when you follow clear structure, appropriate models, good tools, clear instructions, guardrails, and user-centered design."