Peter Van Dijck

" You can’t just be a designer adapting UX workflows assuming everybody else’s workflow stays the same; everything is changing with AI. "

" Evals define a shared definition of good with tests to measure it, and that is the secret sauce for building great AI products. "

" Confidence scores from the model are not a good idea because the model has no memory. "

" The Rosen Bot can turn a simple prompt into a five-week training program for your team. "

" Context design and context engineering mean figuring out and building what needs to go into that text file sent to the model. "

" If you launch in the US and politeness is an issue, first try to fix it with prompts; only if that fails should you build an eval. "

" Evals are the key to knowing when an AI’s output is good enough. "

" Workers are often worried about layoffs and their value when AI speeds up their process, while executives like the efficiency gains. "

" We devote 30 to 50 percent of the project time just on evaluation with real users and experts to ensure quality and safety. "

" Eval is the engineering word for evaluation, but also what researchers and UX designers naturally do. "