AI Engineer · August 19, 2026

The Era of Compound Engineering — Kieran Klaassen, Every/Cora

video AI Engineering Model Evaluation Prompt Engineering

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Why it matters

He has not written a line of code this year, and has not read most of it either, yet he ships a full email client that thousands of people trust with their inbox. Kieran Klaassen has been rebuilding Cora alone since January, and the useful part of his account is the sequence of bottlenecks he moved through.

My takeaway: The Era of Compound Engineering — Kieran Klaassen, Every/Cora is an enterprise-adoption signal. The practical read is to watch how deployment scale, data boundaries, operational ownership, and platform controls change as AI moves out of experiments.

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