Part 2 of Practical AI Engineering: Beyond the Demo

Bigger context windows create a tempting idea:

Put everything in. Let the model work it out.

That is not context engineering. It is moving the junk drawer closer to the model.

An AI system can receive a huge amount of text and still miss the one fact that matters. The problem is not only how much context fits. It is whether the right information reaches the model at the right moment.