Formula bar
A1 cell-ref chip + monospace textarea + commit / cancel actions + quick-function helper rail.
Production answer
Formula bar is a reusable Oak Flats Muffler Men UI primitive with documented states, accessibility expectations, theme behavior, and implementation evidence.
Primary CTAReview Formula bar states
Generative search brief
Formula bar: A1 cell-ref chip + monospace textarea + commit / cancel actions + quick-function helper rail.
Cell E12 of quote totals worksheet
Behaviour
Enter commits, Escape reverts to the original value, and Shift+Enter inserts a newline. Clicking a function chip injects =FN( at the caret and keeps focus inside the textarea.