slack.createList creates a standalone List. Slack Lists require a paid workspace.
automations/create-release-list.automation.ts
Inputs
Column types are
text, message, number, select, date, user, attachment, checkbox, email, phone, channel, rating, created_by, last_edited_by, created_time, last_edited_time, vote, canvas, reference, and link. A List can have at most one primary column, and it must be text.
Output
ReturnslistId and optional metadata with Slack’s generated column IDs, subtask columns, integrations, and views. Preserve generated column IDs when creating or updating items.