How to Build AI Agent that survive the real World.
The headline says an agent can now take on an hour of your work. That figure is measured at a fifty per cent success rate - a coin flip.
Ask how long one manages reliably and the answer was minutes. Four things decide whether yours survives real work, and the model is not one of them.
Context Engineering.
A million tokens is about 555,000 words - and your assistant re-reads all of it, from the top, on every single turn.
That is why the long chat goes vague. Every fix the labs use for it is already a button in the app you pay for.
Prompt engineering, context engineering, harness engineering, and now loop and graph engineering. Five names for one job in six years - and they are not five fashions competing with each other.