Metrics question

What metrics would you take into consideration for Instagram's swipe left to open camera to post a new picture? Pick one or two metrics and provide the reasons for picking them.

Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.

What this question tests

Tests picking a small number of the right metrics for a narrow gesture-based feature and justifying the choice.

Clarify the goal: the swipe-left camera shortcut should lower friction to create a Story or post, not just be discovered.
List candidate metrics: swipe discovery rate, swipe-to-capture rate, and capture-to-post or capture-to-story completion rate.
Pick two: swipe-to-capture rate, since it shows the gesture is understood, and capture-to-post rate, since it shows real value delivered.
Justify the choice: discovery alone doesn't prove value, and total posts could be reached other ways, so a funnel-specific pair isolates this entry point.
Segment by new versus existing users, since discoverability matters most for people who haven't found the gesture yet.

Picks exactly two metrics as asked and gives a clear reason for each, not a long unprioritized list.
Distinguishes a funnel-specific metric, capture-to-post from this entry point, from a global one, total posts.
Notes that raw discovery is a weak metric on its own since it doesn't prove downstream value.

Naming more than the two metrics requested or picking generic ones like total posts.
Not explaining why the chosen metrics are better than the alternatives.

How would you know if this gesture is cannibalizing use of the normal camera button?
How would you test whether users even remember this shortcut exists?