I think "context engineering" is going to stick - unlike "prompt engineering" it has an inferred definition that's much closer to the intended meaning, which is to carefully and skillfully construct the right context to get great results from LLMs https://simonwillison.net/2025/Jun/27/context-engineering/
Context engineering

The term context engineering has recently started to gain traction as a better alternative to prompt engineering. I like it. I think this one may have sticking power. Here's an …

Simon Willison’s Weblog
@simon prompt engineering ⊆ context engineering
@simon So what do you call engineers who provide context behind the scenes via tools and not prompts? 🕵️‍♀️ context engineers?
@simon Still kinda feels like a buzz word though. Is it serious engineering? If you're an expert at numpy do you become a numpy engineer? (Sorry best analogy I could think of, feel free to think of a better one)