The crash (any typed key in a glass session; found via the backtick report):
the merge-reconciliation stand-down declared extern BTRIODevicePresent at
BLOCK scope inside the extern-C BTInputSuppressKey -- the declaration
inherited C linkage, _BTRIODevicePresent went UNRESOLVED, and /FORCE bound
the call to garbage (cdb: wild call into Sensor::DefaultData from
LBE4ControlsManager::Execute's suppression check). The tolerated-LNK2019
batch hid the new unresolved external -- the exact CLAUDE.md /FORCE trap.
Fix: the extern moved to file scope (C++ linkage); link verified clean of
_BTRIODevicePresent.
Backtick feature (per Cyd: backtick = 1st/3rd person): PadRIO edge-detects
VK_OEM_3 in its poll (focus-guarded, message-path-free) and the mech4 view
block consumes it beside the V action (which stands down with the binding
engine in glass mode). Verified live: two real presses -> [view] COCKPIT
eyepoint -> [view] external chase, game alive.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>