Find knowledge-graph nodes whose stored content matches q and return their ids.This is a full-text match over chunk text, which the graph payload the browser holds does not carry, so it finds nodes a title-only search bar would miss without shipping content to the client. Scoped to the effective subject. A query with no usable search terms returns an empty list rather than an error.
This route requires the read scope.A missing or invalid credential returns 401 authentication_error. A valid credential without the scope returns 403 permission_denied, and the problem body names the exact scope required.