The face now treats /hermes/state as the agent's heartbeat: when nothing has been
heard for agent_timeout_s (10 s) it logs "agent gone" and sleeps, so "sleeping"
really means "no agent connected". It also logs every state change, which is how
a missed wake message was found: a one-off publish before discovery matches is
lost under volatile QoS.
The live log showed the face flickering between listening and idle about twice a
second, because the detector let go after 0.4 s. Hold is now 1.2 s so pauses
between words do not drop it, and the margin 7 dB over the adaptive floor (quiet
room noise peaks sit about 3 dB over it), with tests for both.
Confirmed by the owner on the real display: gaze directions, and a mouth that
follows their live voice proportionally.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AFN8nRRCiDiMN7ChBpHJhs
kyleandClaude Sonnet 5.5
5d1ad1eff7