Comment by CapitalistCartr

Yeah, that's an improvement; if it only involves a few docs, small files, etc. it's not so bad, but what if it's hundreds? The secondary agent could be a librarian the primary agent can call, and a cheaper one, too. It passes the initially relevant stuff and a list of "available but not loaded" stuff to the primary, and if context changes needs, the primary can ask the librarian for it.