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May 14, 2026

Formula carriers compute server-side.

Write `=SUM(A1:A3)` through the rows API and the response carries the computed value, not a bare formula string. Update a source cell and every downstream formula carrier refreshes in the same write. The engine that used to live only in the browser now runs on every row write.

Formula carriers compute server-side.
API
  • `POST /rows`, `PATCH /rows/:id`, and `PATCH /rows/bulk` all run the formula engine after applying your change. Bare `=SUM(...)` strings get persisted as a `{formula, value}` carrier with the computed value populated. No UI client needs to open the sheet for the computation to land.
  • Update a literal cell that other formulas depend on, every downstream carrier refreshes its `value` field in the same write. The cell view stops drifting from the bar.
  • Cheap pure-literal early-out: workspaces with zero formulas pay no engine cost on writes.