Scoping complete; implementation not started.
Key finding that changes the slice's shape: ClassifyAcceptedPosition already
produces the retail-exact ForcePosition route, but its ONLY production consumer
is RuntimeInitialCreateContinuationExecutor:1948 - route 1's Create
continuation. For an already-live local player receiving a Position there is no
Runtime consumer at all; LiveEntityNetworkUpdateController.OnPosition does the
work in App. Route 2 therefore has to build the accepted-Position execution
seam and then cut App over, rather than wire up an existing one.
The contract records both duplicate authorities with exact file:line, the
retail evidence (SmartBox::HandleReceivedPosition @0x00453FD0 - the
FORCE_POSITION early return preceding unset_parent and the !HasAnims-gated
SetPlacementFrame), the seven contract points, acceptance including the
complete-suite gate, and three implementer risk notes.
Called out for the implementer: the outbound AutonomousPosition ack currently
fires BEFORE any canonical commit, and its trailing isCurrent() only suppresses
the continuation - the ack has already gone out. Moving to retail's
SendPositionImmediately (an output of the executed route) fixes that by
construction, and is a real behaviour change that must be named in the commit.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
