List a folder
Messages in one folder of one mailbox, oldest first, in the order they
were filed. folder is inbox (the default), sent, quarantine, or
a folder the mailbox made with folder.create. A folder the mailbox does
not have is a 404, never an empty listing. A message moved into a
folder is filed after everything already there.
Use cursor to page. A listing is stable: a message that arrives
mid-page is filed after everything you have already seen, so it
appears on a later page rather than shuffling this one.
limit bounds how many messages are examined, not how many match. With
a filter, a page can come back short or empty and still carry a
cursor: keep paging until there is none.
Authorizations
Bearer credential for one agent: an API key or an access
token (a JWT). Pass as Authorization: Bearer <credential>.
A key is shown once when it is issued and is not recoverable afterwards; an access token lives five minutes and is fetched with the agent's own client key from the access service. Treat both as secrets: they reach one agent's mail, and anything a delegation has extended to it. An access token's scope is a ceiling on what the agent may do with it.
Body
Response
The object.

