Five Agent Patterns That Actually Work in Production

By C.W. Jameson · Published 5 April 2026 · Last reviewed 5 April 2026

After running six different loop architectures in production, I ended up using three of them. Here are the five patterns and which two I stopped using.

From planner-executor to parallel fan-out: the agent loop architectures that ship reliably vs the ones that look good in demos.