The daemon uploads one cell's context, gzip, in order

A device route: the device credential; any request carrying Origin is refused. The body is the context JSON (schema_version 2, or 1 from a three-process desktop, and its header), gzip with Content-Encoding: gzip or plain, at most 2 MB compressed and 8 MB decompressed (413). from in the path must equal the header's (422). It is stored by the credential's device and its from: 202 stores it sealed under the tenant key and answers the run; 200 is a repeat of the same body; 409 context-conflict is another body for the same cell, or a cell cut on another unit than the device's day's first; 410 context-expired is past the firm's retention; an interval starting more than an hour after the service's clock is 425 context-early, which the daemon keeps and sends again later. A three-process desktop's seq and Stop are ignored: a gap in seq is no error. No route answers a context's text.