What's one lesson about building AI agents that you wish you knew earlier?
After spending more time experimenting with AI agents, one thing has become clear to me:
Building the agent is usually the easy part. Building one that's actually useful is much harder.
I initially focused on adding more capabilities, multiple tools, longer prompts, memory, and complex workflows, thinking that would make the agent better.
In reality, the biggest improvements came from simplifying things:
- Giving the agent one well-defined responsibility.
- Spending more time on prompt design than adding new features.
- Improving the quality of inputs instead of increasing model complexity.
- Testing with real-world scenarios instead of ideal examples.
It reminded me that a reliable agent solving one problem consistently is often more valuable than a sophisticated agent trying to solve ten.
I'm interested to hear from others in this community:
What's one lesson you've learned while building AI agents that completely changed your approach?
Whether it's about prompting, orchestration, tool selection, memory, evaluation, or deployment, I'm sure newer builders (myself included) would benefit from hearing what actually worked in practice.