Topic
Layered decomposition of agent systems into prompt, context, harness, loop, and graph controls, including composition rules for model calls, agents, and multi-component systems.
A dev.to post argues the "RAG or agents" question is malformed. The interesting part is the invoice: one axis out of five justifies the premium, and most buyers never use it.
Reality
A published production loop for customer service agents shows where the cost really sits: not the model, but the classify-execute-confirm middle where a write hits a payment processor.
Reality
A dev.to essay splits agent architecture into five control layers and shows that only one of four failures in its worked example is fixable by editing instructions.
Reality