A smart column's definition and run state

The column's stored definition and run state: its prompt, engine and any Deep Research provider restriction (providerIds, null when the column may use every provider), plus what a re-run would cost — refreshableRowCount rows (computed cells plus cells a cancelled run left pending or running) at creditsPerRow credits each — and hasActiveJob, true while a run is pending or processing (starting another run or editing the prompt cancels it). Only smart columns answer here; a plain custom column id is a 404. Free to call.

Errors:

• 404 LIST_NOT_FOUND — No list with that id belongs to you.
• 404 COLUMN_NOT_FOUND — No smart column with that id is on this list (a plain custom column answers this too).
• 422 VALIDATION_FAILED — The path, query or body failed validation; param names the offending field and message says why.
• 429 RATE_LIMITED — More than 120 requests per minute or 10,000 per day on the lists bucket, which every /business/lists endpoint shares; retry after Retry-After.
• 500 UNEXPECTED_ERROR — The request could not be completed; quote request_id to support.

Requires one of the following token scopes: lists.