Fei Design Mode

Fei Design Mode puts an AI agent on top of your running interface so you can say something like 'make this button 8px wider and change the label to Submit Order' and watch it happen live, no code editor required. The core differentiator is the live-edit loop: you are not generating a static mockup or writing a prompt that spits out a diff — you are nudging a real running UI directly. That is a meaningfully different workflow from Figma AI, Cursor, or v0, which all require at least one context switch before you see the result. The honest reservation: it is early, and anything that agents-on-live-UI usually means 'works great on the happy path, breaks unexpectedly on complex component trees.' Worth a real test session before committing it to a production workflow. -> Best for: solo founder or SaaS team of 2-5 doing fast UI iteration without a dedicated designer.