Transport: TCP. Shared encodings and frame fields are described in Logging and producers.
decoded: Array of per-direction frames: direction, command, status, payload, truncated
Writes set status (STORED, END, ERROR, CLIENT_ERROR, VERSION). set frames aggregate the command line plus the data chunk. A command line longer than 8 KiB keeps its first 8 KiB and sets truncated; the rest of that line is dropped.