A feature they designed ships with no major UX rework requested post-launch — engineering built exactly what was designed, and users didn't surface fundamental usability issues in the first two weeks.
User research they conducted independently changes a product decision — the PM or Tech Lead adjusts scope, priority, or design direction based on what they found.
A component or pattern they contributed to the design system is adopted by other designers or developers without modification — it's correct, complete, and documented well enough to use without explanation.
Raises a systemic UX problem — not a feature-level fix but a pattern that's causing confusion across multiple flows (e.g. Soum's listing trust signals, the cars inspection flow) — and proposes a solution with supporting evidence.
Engineering team members say their designs are consistently feasible and developer-ready — no repeated back-and-forth on implementation ambiguity.