The folders this organization keeps, as this member reaches them.

An organization has MANY root folders, not one: verified against production 2026-09-02 the ai4o tenant has 17. So the answer is a list and the page renders it as one, rather than a single "the organization's folder".

Scoped to what the CALLER reaches, through the same _reachable_org_library_ids the help agent's retrieval uses. A member invited to one root must not learn the names of the other sixteen by opening the organization page: membership of a company is not membership of every filing cabinet in it, which is the exact inversion of the proxy TOS-4113 retired.

A separate call rather than a field on the organization detail. Every mutation on that page returns the whole organization, so folding the folder tree into it would re-run this query on each role change for a list that cannot have altered.