Designing Juno clarified something important about AI product management: the architecture is the product. The features users see — the query box, the cited response, the confidence indicator — are thin interfaces over a set of deeply consequential design decisions made in the retrieval and augmentation layers.
Getting the prompt schema right took longer than any other part of the design. The output format, the citation requirement, the hallucination guardrail — each one required deliberate trade-off thinking, not just prompt experimentation. That process felt more like systems design than copywriting.
The demo pitch itself was its own product lesson. Five minutes is a constraint, and constraints are clarifying. Every slide and every demo step had to justify its place. Cutting the architecture deep-dive to 45 seconds was the hardest edit — and the right one.