Cursor cloud agent recreates Slack UI motion as code by checking against the live app

Matt Pocock shows a Cursor cloud agent recreating Slack's UI motion as video code, checking its output against the real Slack app running on a Linux desktop.

The agent runs an inner loop of building, comparing and fixing, while humans supply references, preferences and access in an outer loop, according to a post by meng shao (@shao__meng) on X. Repeated successful runs are then saved as a reusable Skill. The report includes no metrics on accuracy or time saved.