Campaign P remaining-physics-divergence, placement cutover slice C3c
(docs/plans/2026-08-02-placement-cutover.md). Both production hosts now
register every initial Create through the residence + continuation-
executor + first-entry-conductor machinery (C0-C3b):
- Graphical (route 1): RegisterEntityWithInitialResidence at Create; the
shared RuntimeFirstEntryDriveController pumps both conductors from the
placement-receipt flow; MaterializeProjection and RebucketLiveEntity
are presentation-only while a residence is ACTIVE (ExecutorCompleted is
the presentation-binding receipt); post-residence entities take the
full legacy path including the prepare_to_enter_world clock edges.
PlayerModeController attaches presentation to the Runtime-published
controller; its legacy resolve/step-heights/host-construction path is
deleted; presentation-only rollback (retail has no entry-flow rollback).
- Headless (route 8): OnSpawned registers with residence when a drive
exists; content-less sessions keep the pre-flip direct registration;
SynchronizeLocalPlayer/CreateController/ApplySetupStepHeights deleted;
prepared-collision read failure is a typed AwaitingCollisionSource
retry; far remotes outside the service window complete celless.
- RuntimeLocalPlayerMovementState.Controller setter sealed internal; all
controller mutation flows through the publication lifecycle.
Fix slices landed within this cutover, each dual-gated:
- F1: live movement-stat/server-physics application routed through the
Runtime ownership seam (post-logout ingest crash on the retired
controller eliminated; RuntimeMovementSkillProjection deleted).
- F2: login activation wedge - collision-admission prefix gate factored
out of the seal (reentrant-commit RejectedAuthority), rearm generation
identity corrected, PlayerModeAutoEntry requires the Runtime-published
controller (world reveal can no longer seal unmaterialized).
- F3: landblock-prefix 0-sentinel replaced by explicit absent-id guards;
map-corner landblocks (grid row/col 0) fully legal through admission,
park/rearm/retire, quiescence, and outdoor shadow seeds.
- F5: local-player first-entry ground contact seeded by the shared
SpawnPlacementSettler (moved App->Core) at FinalizeActivation - the
retail first-gravity-frame touch (enter_world 0x00516170 carries no
seed); the legacy unconditional force-seed is overwritten by a real
floor-found contact; airborne spawns stay airborne; outbound contact
bit verified end-to-end. Fixes the standing-cast 'You can't do that
while in the air!' rejections.
- R1 (dual-review round): login constraint leash armed at the committed
placement (HandleReceivedPosition 0x00453FD0 analog); register rows
AD-61 (settle-timing compression now covering the local player) and
AD-42 (repointed off the deleted resolve split) in this commit;
residence-conversion owner API; wire-landblock guards; drive-pending
ledger in IsConverged; route attach/detach latch; executor-drain drift
model documented + source-pinned.
Gates: Runtime 1,003, App 4,039/3 skips, Headless 79, complete solution
10,816/0 failed/4 skips (Release, -m:1); connected lifecycle/reconnect
gate PASS (logs/connected-world-gate-20260802-175401; graceful exits,
world-visible, zero airborne rejections). The nine-stop soak remains red
for the pre-existing 6b28ff99 whole-world collision-clone throughput
regression (attributed with evidence; scheduled as its own slice before
C5). Dual Opus reviews (retail-conformance + adversarial): delta PASS.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Cutover slice C3a: the resumable transaction that dissolves the C3
flip's circularity finding. RuntimeLocalPlayerFirstEntryState drives the
local player's complete entry in retail's own order — authored-mover
preparation (the makeObject/set_description shape analog, via a pure
no-submit extraction TryPrepareAuthoredMover), the publication chain's
off-canonical Prepare + atomic body Commit against the residence's exact
placement token, the Evaluate/CommitActivation enter-world analog, the
Place-receipt acknowledgement as that act's virtualized completion, and
only then the executor's FIFO drain (retail: enter_world at 93824
strictly precedes ProcessObjectNetBlobs at 93831). Five stages, eight
typed statuses, exactly-once per stage under retry, no second token
copies, and an acknowledge-stage discriminator that separates
not-yet-FIFO-head (retryable) from authority-moved (typed abandonment) —
a mid-flight delete can no longer strand a retry-forever entry.
The residence retirement notification becomes an ordered multicast
(snapshot-iterated per the event-stream precedent), the lifetime
constructs the conductor with a late-bind Publication seam (transactional
unbound failure — no mutation before the throw), deletion/reset converge
the conductor automatically through the same choke points as the
executor, and its active count is in the ownership snapshot and
IsConverged. Dormant: no production Advance caller; GameRuntime binding
is C3c's first act.
Reviewed: retail-conformance PASS (the stage order verified
step-for-step against retail's entry sequence; the live-controller-on-
abandonment invariant proven structurally enforced and retail-correct —
retail has no entry-flow rollback) + architecture/adversarial PASS after
one fix round (acknowledge-stage authority discrimination; the wiring
fold; two prescribed pre-C3c hardenings). Runtime 948/948; complete
Release solution green across all nine projects.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Cutover slice C2: the dormant placement path's per-operation cost was the
recorded activation blocker for routing frame-frequency traffic through
the canonical SetPosition owner (1,880 B/op measured at 4B2, cap 2,048).
Root-cause removal, not a raised cap: the per-operation envelope is now
pooled (bounded 64, reset-at-rent, InPool double-retire guard, cleared on
session reset/dispose and surfaced as a diagnostic ownership count), the
two engine-callback closures became one cached delegate over an explicit
context stack, and the pending-projection head read no longer boxes the
sorted enumerator. Measured 2,032 -> 944 B/op; the regression gate
tightens to 1,536. The residual floor is documented at the gate: ~520 B
inside Core's PhysicsEngine.SetPosition (outside this slice's scope) and
~208 B of sorted-tree node per pending receipt.
Pooling demanded — and received — the full staleness-discipline rework:
every frame holding an operation across a reentrancy point now captures
its never-reissued token and revalidates via fresh lookup
(IsCurrentByToken / token-shaped CancelCore), because a recycled
instance reinstalled at the same key makes every reference-identity
check a tautology. All ~26 sites audited (15 remain reference-based with
per-site no-reentrancy proofs); CommitCanonical's post-callback reads
are hoisted stack locals mirroring retail's savedTransientState pattern
(handle_all_collisions bits, pseudo-C 283952), its bookkeeping writes
are token-gated, and the settle path stays deliberately identity-
agnostic because retail's SetPositionInternal runs its physical settle
unconditionally even for displaced operations.
Reviewed: retail-conformance PASS + architecture/adversarial PASS after
two fix rounds (the ground-edge recycle window, the pool's cross-reset
retention, the class-wide tautology, a self-found snapshot-reference
iteration hazard). Runtime 927/927; complete Release solution 10,722
passed / 4 intentional skips; budget test green at the tightened gate.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Cutover slice C0 (docs/plans/2026-08-02-placement-cutover.md): the seam
work that lets C3 flip hosts onto a complete receipt stream instead of
growing one mid-cutover. The executor's Released exit now publishes an
acknowledge-only ExecutorCompleted receipt through the one placement
projection stream — registered before observer dispatch, correlated to
the full execution receipt, reaped exactly once on acknowledgement/
discard/session-clear, and counted in the convergence ledger. All three
production placement sinks acknowledge-and-ignore the new kind via early
returns proven behavior-preserving for every existing kind; without them
the first such receipt at cutover would permanently wedge the exact-head
FIFO behind sinks that return false. Provably inert today: the publisher
has no production caller.
Execute's live inputs now derive from Runtime's own owners bound at
GameRuntime construction: UsePositionFromServer is retail's exact
autonomy_level != 2 (CommandInterpreter::UsePositionFromServer
0x006B3B40, startup-only knob), and PlayerDistance uses the live movement
controller's position with a null-safe fallback to the caller struct —
never a fabricated origin. TryPrepareAndSubmitAuthoredPlacement chains
the prepared-collision Setup read through PrepareMover to submission with
zero validation-semantics changes. TryCommitParent and CommitWithdrawal
gain the sibling cancellation flow (residence + ordinary placement
family); TryCommitParent deliberately omits LeaveWorld — retail's
set_parent performs its single gated leave_world (0x00515A90) and a
second would have no counterpart.
Not fully dormant: the two cancellation fixes change Runtime paths
production already calls (today as no-op-adjacent hardening, since
nothing upstream begins a residence yet); everything else is reachable
only by tests. Reviewed: retail-conformance PASS + architecture/
adversarial PASS after one fix round (sink wedge, completion-receipt
lifecycle, null-controller distance). Runtime 921/921; complete Release
solution 10,716 passed / 4 intentional skips.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
