Optional ReadonlyactionsActions rendered at the row's trailing edge, after the pills, and available whether the row is expanded or not. Use CollapsibleRowAction, which stops the click from toggling the row.
Optional ReadonlybodyContent revealed when the row is expanded (below the description).
Optional ReadonlydescriptionOne-line description; shown inline while collapsed and as a paragraph while expanded.
ReadonlyfilterLower-cased haystack used by the in-list filter.
ReadonlyidOptional ReadonlyoriginsWhere the row's entry came from, when that is not the user. Shown after the pills as the same AiConfigurationOriginBadges a collection item carries, and reachable while the row is collapsed - provenance is something you scan a list for, not something you expand rows to find.
Optional ReadonlypillsShort badges shown before the actions, e.g. an argument count or the single agent using the row.
ReadonlytitleHeader title (e.g. a variable reference, a skill name, a /command).
One expandable row of a CollapsibleList.