What crosses between svc-gw and the app: hello, heartbeats both ways, state
snapshots of envelopes with mock flagged per message, and commands carrying an
idempotency key. TTS utterances are left for when a TTS exists.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DDwfd6Ki8UfG4hK6W5YpJz
The app<->svc-gw channels have no wire format yet. Measured USB link
drops (~3 s per power change, sleeping tablet invisible at link level)
and yukart decision 24 already fix the required fields: heartbeat,
command idempotency key, and utterance id/sequence/terminator/expiry.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
mikkeli
mikkeli