diff --git a/SHA256SUMS b/SHA256SUMS
index 3257526..530ad83 100644
--- a/SHA256SUMS
+++ b/SHA256SUMS
@@ -8,4 +8,4 @@ ffd1790c882ca5dbcaebdfadc8f24c504159900213eebaa22e61fcdbf3facfe0  README.md
 20c584762cae3a50a498df25e11272c3c191a62c9ce823e63f8224d14637b1d4  systemd/pigway-pi-control-api.service
 35ec68e1c3040e7affad43961fbb77e9e29f3474b92aed1005502629f9acb549  systemd/pigway-pi-control.service
 7dbb498b137148c0bbc77f31c1344ea4a2954814b35f190e10e3f8151fe04603  web/index.html
-fa7ab991a7a39cce72b218e407dcefbcede99c8d8eb3d9c161a5296d506c41a9  docs/HARDWARE_PLUGIN_API.md
+73b7922be93bf57169589755137dc5ec7ec7c8059c85c2bf2ee53a344e534d7e  docs/HARDWARE_PLUGIN_API.md
diff --git a/docs/HARDWARE_PLUGIN_API.md b/docs/HARDWARE_PLUGIN_API.md
index d0f9b89..f8b1301 100644
--- a/docs/HARDWARE_PLUGIN_API.md
+++ b/docs/HARDWARE_PLUGIN_API.md
@@ -68,8 +68,11 @@ with a color picker. Plugins remain authoritative for all validation.
 
 Monitoring continues without installed or reachable plugins. Hardware plugins
 continue local temperature control without the monitor. Expired snapshots must
-not keep showing stale alerts as live faults. The Yahboom implementation displays
-MONITOR OFFLINE and requests RGB OFF; explicit detach returns to standalone mode.
+not keep showing stale alerts as live faults. The Yahboom implementation returns
+to its locally sampled home and configured normal RGB mode on expiry or detach.
+It samples CPU, memory, disk, temperature and primary network independently.
+API v1 system/network fields remain accepted for compatibility but never override
+local telemetry. Monitor connectivity only supplies additional alerts.
 Its thermal read failure and service shutdown request full fan speed as a cooling
 fallback; actual execution still depends on functioning hardware.