The Four Layers of Agent Engineering: Prompt, Context, Harness, and Loop
blaizedsouza · x · 2026-07-03
Paraphrasing Avichawla: An agent is essentially a while loop with four layers of engineering—prompt engineering, context engineering, harness engineering, and loop engineering.
This framework clearly delineates the responsibilities of each layer when building autonomous agents, serving as a practical breakdown for understanding agent architecture and engineering practices.
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