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Columns define what each row stores or produces. Start with text inputs, then add computed columns for each step in the workflow. For the full list of supported types, see Column Types.

Add a column

Click Add Column to add a new field to the sheet.
Add Column control in a Table sheet
A clear sheet usually moves left to right: inputs, generated outputs, checks or helper transforms, and reviewer notes.

Choose a computed type

Use one computed column per logical step: prompt or workflow execution, code, deterministic checks, LLM evaluation, helper transforms, or composition.
A Table with input columns followed by computed prompt, code, quality, and edge-case columns

Configure a column

Open a column menu and choose Configure column to edit its settings.
Column menu showing Configure column, Hide, Auto size, Pin, Filter, Sort, Run column, Stop column, Duplicate, and Delete actions
Use the same menu to hide, resize, pin, filter, sort, run, duplicate, or delete a column.

Map sources

Computed columns read from source columns. A Prompt Template column, for example, exposes the prompt’s input variables and lets you map each variable to a source column.
Prompt Template column configuration showing input variables mapped to source columns
Source mappings become dependencies. When a source value or computed column configuration changes, dependent computed cells can become stale. If a variable is unmapped, open the source selector and choose the source column for that variable.

Filter and sort columns

Use Filter to narrow visible rows by column value. Use Sort ascending, Sort descending, and Clear sort to reorder or reset the grid.

Pin, hide, resize, duplicate, and delete columns

Use column menu actions to manage grid layout:
  • Pin left or Pin right keeps important columns visible while scrolling.
  • Hide removes a column from the visible grid without deleting it.
  • Auto size column resizes a column to fit visible content.
  • Duplicate copies a column when you want a similar configuration.
  • Delete removes the column.

Run or stop a column

Use Run column when one computed step needs updating. If the column is queued, dispatched, or running, the menu can show Stop column.

Use composition columns

Composition columns reference another sheet or table and pull values from a chosen source column. Use composition when multiple sheets should share a reusable intermediate result instead of copying logic into every sheet.
Composition column configuration that copies values from a source column in another sheet

API references

Create column

Add a text or computed column to a sheet.

Update column

Update a column title, config, or dependencies.

List columns

List columns for a sheet.

Run operation

Queue work for a column, row, cell selection, or stale cells.