Returns routines in Research Agent sessions you can access. Without sessionId, the list includes routines reached through session ownership, a direct share, or a project grant; public-link access alone is excluded. With sessionId, the same filters, ordering, cursor, and response shape apply, and an unknown or inaccessible session returns 404.

By default the endpoint returns every unarchived routine. Use filter for active, paused, or archived routines; q searches names and instructions. The default order is newest first by createdAt. Sorting by removedAt requires filter=archived.