lianghsun/open-sheet/current-sheet

Resolve "this one"

The dev server publishes the reader's position to node_modules/.open-sheet/current.json as they navigate:

{ "id": "fy26-budget", "sheet": "P&L", "cell": "B7", "updatedAt": "2026-08-18T…" }

Read that file, or GET http://localhost:5373/__open-sheet/api/current.

Using it

1. Read the file. If it is missing or updatedAt is old, the dev server is

probably not running — ask which workbook rather than guessing.

1. id gives you sheets/<id>/index.tsx.
2. cell is an A1 address for reading only. It tells you where the user is

pointing; it is not something to write into the source.

Turning a cell into a source location

The user points at a cell; you have to edit the block that produced it. Open the workbook and work out which block covers that address — usually obvious from the sheet's structure — then change the authoring construct:

Never respond by writing an address into the file. If you find yourself wanting to, re-read sheet-authoring.