Really like how you framed the shift here — the "beyond prompts" point lands. The part I'd add from my own experience: the hardest part of context engineering in practice isn't deciding to use context, it's the unglamorous structuring decisions — chunk ordering, what to evict when the window fills, where to place the question relative to the evidence. That's where I've seen output quality actually move, often more than prompt wording. I wrote up a fuller breakdown of where prompting stops being enough and context takes over here, which complements your piece nicely: Context Engineering vs Prompt Engineering — would be curious which context-management technique you've found most underrated.