Expand description
The UDS wire protocol (spec §4.3): newline-delimited JSON, one request
and one response per line. The check response carries the SAME uniform
result JSON as the cold path (§8.3) — the daemon is a transport, never
a second brain. deny_unknown_fields on ingest (charter N2); versioned
so a stale daemon and a newer shim fail loudly, not weirdly.