docs(runtime): record J0 and physical I6 evidence

Pin the exact J0 rollback, synchronize the roadmap and agent handoff files, and distinguish the observer-heavy two-gigabyte soak from the ordinary-client physical sample. Keep parsed collision graph removal explicitly behind the pending user collision and visual gate.

Co-authored-by: Codex <codex@openai.com>

AGENTS.md

@@ -174,7 +174,6 @@ six-path moving-collision entry point has an integer-indexed flat shadow port.
 The exact referee passes 13 focused tests, 7,500 installed-DAT comparisons,
 1,200 complete resolver frames, and 10,000 warmed iterations at zero managed
 bytes with no mismatch. Release build and 8,384 solution tests / 5 skips pass.
-Production remains graph-authoritative until the Slice I6 cutover.
 Slice I5 is complete: immutable near-build collision closures and strict live
 collision publication install graph and prepared-flat views under canonical
 ownership. Cancellation, demotion, rehydration, revisit, removal, and reset
@@ -182,10 +181,23 @@ gates pass. The lifecycle/reconnect and nine-stop routes sampled 14,064 exact
 queries with zero mismatch, fault, or artifact; graph/flat cell residency
 matched at every stable checkpoint and teardown converged. Release build and
 8,396 solution tests / 5 skips pass.
+Slice I6 is committed at `068a0651`: gameplay collision is flat-authoritative
+and the parsed graph is only a sampled referee. The strict dense-Arwic gate
+matched 46,309/46,309 queries, and the exact physical nine-stop lifecycle soak
+passed with all publication, retirement, upload, warmup, and class backlogs
+converged. Parsed-graph deletion remains gated on the user's final
+collision/visual acceptance. The cutover rollback is
+`git revert 068a06518dd710ca5e7f166754cbb7789ca1ed0f`.
+Slice J0 is complete at `b632672e`: `AcDream.Runtime` now provides the enforced
+presentation-independent assembly boundary without moving gameplay behavior.
+Four dependency guards, the Release build, and 8,406 tests / 5 skips pass. J1
+waits behind the I6/I7 user gate. Its rollback is
+`git revert b632672e5ccabfb44c551e08f1c411ab2669c44a`.
 Slice H's retained UI/frame, bounded-light, and pooled/borrowed/direct network
 work is complete; the exact seven-checkpoint connected lifecycle/reconnect gate
-passes. Slice I is active at I6 from
-`docs/plans/2026-07-25-modern-runtime-slice-i.md`. The exact G4 visual rollback
+passes. Slice I7 closeout is active from
+`docs/plans/2026-07-25-modern-runtime-slice-i.md`; the coherent Slice J campaign
+is pinned in `docs/plans/2026-07-25-modern-runtime-slice-j.md`. The exact G4 visual rollback
 is `git revert ef1d263337997bb030eadb7b8e71d73dc659907a`; do not revert G3 or
 the portal-warmup corrections. Evidence:
 `docs/research/2026-07-25-slice-h-closeout.md` and
@@ -194,7 +206,8 @@ the portal-warmup corrections. Evidence:
 `docs/research/2026-07-25-slice-i2-flat-collision-schema.md` and
 `docs/research/2026-07-25-slice-i3-prepared-collision-package.md` and
 `docs/research/2026-07-25-slice-i4-flat-bsp-differential.md` and
-`docs/research/2026-07-25-slice-i5-dual-collision-shadow.md`.
+`docs/research/2026-07-25-slice-i5-dual-collision-shadow.md` and
+`docs/research/2026-07-25-slice-i6-flat-production-cutover.md`.
 
 **Structural prerequisite before new M4 subsystem work:** all eight
 behavior-preserving `GameWindow` decomposition slices and the automated

CLAUDE.md

@@ -172,7 +172,6 @@ six-path moving-collision entry point has an integer-indexed flat shadow port.
 The exact referee passes 13 focused tests, 7,500 installed-DAT comparisons,
 1,200 complete resolver frames, and 10,000 warmed iterations at zero managed
 bytes with no mismatch. Release build and 8,384 solution tests / 5 skips pass.
-Production remains graph-authoritative until the Slice I6 cutover.
 Slice I5 is complete: immutable near-build collision closures and strict live
 collision publication install graph and prepared-flat views under canonical
 ownership. Cancellation, demotion, rehydration, revisit, removal, and reset
@@ -180,10 +179,23 @@ gates pass. The lifecycle/reconnect and nine-stop routes sampled 14,064 exact
 queries with zero mismatch, fault, or artifact; graph/flat cell residency
 matched at every stable checkpoint and teardown converged. Release build and
 8,396 solution tests / 5 skips pass.
+Slice I6 is committed at `068a0651`: gameplay collision is flat-authoritative
+and the parsed graph is only a sampled referee. The strict dense-Arwic gate
+matched 46,309/46,309 queries, and the exact physical nine-stop lifecycle soak
+passed with all publication, retirement, upload, warmup, and class backlogs
+converged. Parsed-graph deletion remains gated on the user's final
+collision/visual acceptance. The cutover rollback is
+`git revert 068a06518dd710ca5e7f166754cbb7789ca1ed0f`.
+Slice J0 is complete at `b632672e`: `AcDream.Runtime` now provides the enforced
+presentation-independent assembly boundary without moving gameplay behavior.
+Four dependency guards, the Release build, and 8,406 tests / 5 skips pass. J1
+waits behind the I6/I7 user gate. Its rollback is
+`git revert b632672e5ccabfb44c551e08f1c411ab2669c44a`.
 Slice H's retained UI/frame, bounded-light, and pooled/borrowed/direct network
 work is complete; the exact seven-checkpoint connected lifecycle/reconnect gate
-passes. Slice I is active at I6 from
-`docs/plans/2026-07-25-modern-runtime-slice-i.md`. The exact G4 visual rollback
+passes. Slice I7 closeout is active from
+`docs/plans/2026-07-25-modern-runtime-slice-i.md`; the coherent Slice J campaign
+is pinned in `docs/plans/2026-07-25-modern-runtime-slice-j.md`. The exact G4 visual rollback
 is `git revert ef1d263337997bb030eadb7b8e71d73dc659907a`; do not revert G3 or
 the portal-warmup corrections. Evidence:
 `docs/research/2026-07-25-slice-h-closeout.md` and
@@ -192,7 +204,8 @@ the portal-warmup corrections. Evidence:
 `docs/research/2026-07-25-slice-i2-flat-collision-schema.md` and
 `docs/research/2026-07-25-slice-i3-prepared-collision-package.md` and
 `docs/research/2026-07-25-slice-i4-flat-bsp-differential.md` and
-`docs/research/2026-07-25-slice-i5-dual-collision-shadow.md`.
+`docs/research/2026-07-25-slice-i5-dual-collision-shadow.md` and
+`docs/research/2026-07-25-slice-i6-flat-production-cutover.md`.
 
 **Structural prerequisite before new M4 subsystem work:** all eight
 behavior-preserving `GameWindow` decomposition slices and the automated

docs/plans/2026-04-11-roadmap.md

@@ -1666,14 +1666,20 @@ port in any phase — no separate listing here.
 > ownership. Lifecycle/reconnect plus the nine-stop route sampled 14,064
 > queries with exact state/float-bit equality, zero mismatch/fault/artifact,
 > equal graph/flat cell residency, and graceful teardown. Release build and
-> 8,396 solution tests / 5 skips pass. I6 production cutover is active.
+> 8,396 solution tests / 5 skips pass. I6 production cutover is committed:
+> gameplay is flat-authoritative, dense Arwic matched 46,309/46,309 referee
+> queries, and the physical nine-stop soak converged. Parsed-graph deletion
+> waits on the user's collision/visual acceptance. J0 established the
+> presentation-independent Runtime boundary with four enforced dependency
+> guards; Release build and 8,406 tests / 5 skips pass.
 > The historical exact cutover
 > rollback remains
 > `git revert ef1d263337997bb030eadb7b8e71d73dc659907a`. Slice H is complete:
 > retained UI/frame work, exact bounded light selection, and
 > pooled/borrowed/direct network I/O pass 8,292 Release tests / 5 skips and the
-> connected lifecycle/reconnect gate. Slice I is active at I6 from
-> [its detailed plan](2026-07-25-modern-runtime-slice-i.md).
+> connected lifecycle/reconnect gate. Slice I7 closeout remains active from
+> [its detailed plan](2026-07-25-modern-runtime-slice-i.md); Slice J is pinned
+> in [its lifetime-group plan](2026-07-25-modern-runtime-slice-j.md).
 
 **Spec:** `docs/superpowers/specs/2026-07-05-modern-pipeline-design.md` (the
 umbrella design — read it first). **Goal:** smoothness first (no frame over
@@ -1697,11 +1703,11 @@ hitch and follows.
 | MP1a | `AcDream.Content` extraction (GL-free MeshExtractor + boundary records out of App) | ✅ SHIPPED 2026-07-05 — user-gated (renders identical, zero tripwires, perf-neutral); 8 commits `651d041e`..`b0758d77` |
 | MP1b | Pak format + `acdream-bake` CLI + mmap `PakReader` + equivalence/full-scale gate | ✅ **SHIPPED 2026-07-24** — 729,888 EnvCell keys → 17,117 unique geometries + 712,771 aliases (42.6×), 751,141 total keys / 38,370 physical blobs, zero failures, 28,192.4 MiB, 81.4 s validated atomic publish; full-DAT gate also corrected a real collision in WB's legacy geometry hash. [Report](../research/2026-07-24-slice-b-full-bake-report.md) |
 | **MP-Alloc (safe batch)** | Reuse per-frame buffers: anim pose, particle draw-list, interior partition, animatedIds/drawableCells sets | ✅ SHIPPED + USER-GATED 2026-07-05 — dense-town frame-time spikes 20–87ms → 6–10ms, alloc spikes (30–75MB single-frame) eliminated, gen2 GC 5–11/window → ~0; user confirms FPS steady. 4 commits `b8c05e2b`..`91afea24` |
-| MP-Alloc (hard sites) | EnvCell settled-camera rebuild gate + physics `Transition` reuse | 🟡 Physics half SHIPPED 2026-07-25 — retail-shaped reset-complete transition/query scratch is bit-identical and 0 B/resolve across five profiles; immutable flat collision storage, deterministic package, zero-allocation traversal, strict dual publication, and the 14,064-sample connected shadow gate are shipped; production flat cutover continues in Slice I6. |
+| MP-Alloc (hard sites) | EnvCell settled-camera rebuild gate + physics `Transition` reuse | 🟡 Physics cutover SHIPPED 2026-07-25 — retail-shaped reset-complete transition/query scratch is bit-identical and 0 B/resolve across five profiles; immutable flat collision storage, deterministic package, zero-allocation traversal, strict dual publication, and flat-authoritative production traversal are shipped. Parsed-graph deletion awaits the user collision/visual gate. |
 | MP1c | Streaming cutover to pak + hitch gate | ✅ **SHIPPED 2026-07-24** — typed package-only production source, explicit Setup probes, non-allocating Portal-first lookup, exact translucency metadata, and ordered teardown; capped/uncapped/dense physical routes + user visual gate pass. Uncapped CPU p99 7.825→6.496 ms, GPU p99 3.406→2.706 ms, portal frame max 202.9→39.9 MiB, process allocation −41.8%, zero invalid Setup probes. [Report](../research/2026-07-24-slice-c-prepared-asset-cutover-report.md) |
 | MP2 | Retail particle distance/cell-view degradation: DAT-authored range, exact infinite/finite off-view update branches, emitter-first render scan, user-requested 2× default range | ✅ SHIPPED 2026-07-17 — Aerlinthe hotspot `0x32000223` resolves to retail 64m and defaults to 128m; landscape/entity streaming distance unchanged |
 | MP3 | Arch ECS render world + delta submission (the 300-FPS lever) | ⚪ — note: does NOT fix the steady-state GC churn (that's MP-Alloc); MP3 is the draw-submission throughput lever |
-| MP4 | Zero-alloc frame loop + flat physics data (residual, post-MP-Alloc) | 🟡 ACTIVE — Slice I1 zero-allocation transition scratch, I2 immutable schema, I3 deterministic collision package, I4 exact flat traversal, and I5 strict dual publication plus connected shadow verification shipped; I6 production cutover is active. |
+| MP4 | Zero-alloc frame loop + flat physics data (residual, post-MP-Alloc) | 🟡 ACCEPTANCE — Slices I1–I6 shipped through flat-authoritative production traversal; dense-Arwic and physical nine-stop gates pass. User collision/visual acceptance gates parsed-graph deletion and I7 closeout. |
 | MP5 | Job-system parallelism | ⚪ stretch, evidence-gated |
 
 ---

docs/plans/2026-05-12-milestones.md

@@ -141,8 +141,16 @@ queries with zero mismatch, fault, or artifact; graph/flat cell residency
 matched at every stable checkpoint and teardown converged. Release build and
 8,396 solution tests / 5 skips pass. Slice H is complete: retained UI/frame
 work, exact bounded light selection, and pooled/borrowed/direct network I/O
-pass. Slice I is active at I6 under
+pass. Slice I6 is committed: gameplay is flat-authoritative, its dense-Arwic
+referee gate matched 46,309/46,309 queries, and the physical nine-stop soak
+converged without publication, retirement, upload, or warmup backlog. Parsed
+graph deletion remains gated on the user's collision/visual acceptance. Slice
+J0 established and enforced the presentation-independent `AcDream.Runtime`
+boundary without moving behavior; Release build and 8,406 tests / 5 skips
+pass. Slice I7 closeout is active under
 [`2026-07-25-modern-runtime-slice-i.md`](2026-07-25-modern-runtime-slice-i.md).
+The coherent Slice J campaign is pinned in
+[`2026-07-25-modern-runtime-slice-j.md`](2026-07-25-modern-runtime-slice-j.md).
 The historical exact G4 visual rollback remains
 `git revert ef1d263337997bb030eadb7b8e71d73dc659907a`.
 

docs/plans/2026-07-25-modern-runtime-slice-i.md

@@ -3,7 +3,8 @@
 **Status:** I0-I5 COMPLETE - retail oracle, zero-allocation transition
 scratch, deterministic immutable collision records, complete prepared
 package, exact flat traversal, dual publication, and connected shadow gate;
-I6 production cutover committed; visual/correctness acceptance active
+I6 production cutover, strict connected gate, and physical nine-stop soak
+complete; user collision/visual acceptance active before graph deletion
 **Parent:** `2026-07-24-modern-runtime-architecture.md`, Slice I
 **Purpose:** remove parsed DAT object graphs and steady collision allocations
 without changing one retail collision decision, float, comparison, or traversal

docs/plans/2026-07-25-modern-runtime-slice-j.md

@@ -94,7 +94,11 @@ unchanged because no runtime path changed.
 
 Evidence: four focused dependency tests pass, the Release solution builds with
 zero errors, and the complete Release suite passes 8,406 tests with five
-pre-existing skips. The exact rollback commit is recorded below after landing.
+pre-existing skips. Exact rollback:
+
+```text
+git revert b632672e5ccabfb44c551e08f1c411ab2669c44a
+```
 
 ### J1 — read, command, event, clock, and lifecycle contracts
 

docs/research/2026-07-25-slice-i6-flat-production-cutover.md

@@ -90,6 +90,49 @@ Stable result:
 The parsed graph is still resident in those memory figures. I6 graph removal
 must reduce that footprint and prove stable production graph counts are zero.
 
+## Physical-display full-route soak
+
+An exact clean worktree at source/binary `9f37d1793674a7bf5101ef22d5c5d956b8d101a2`
+completed the canonical nine-stop route on the physical display:
+
+- all nine checkpoints and every materialization passed;
+- Caul, Holtburg, and return-to-Caul movement/jump/combat exercises passed;
+- server-spawned/static lifecycle checks passed;
+- final publication, retirement, worker, destination, control, unload,
+  near/far, staged-upload, and composite-warmup backlogs were all zero;
+- graph and flat residency agreed at 175 cells in the final stable state;
+- graph retention remained intentional for the pending user gate;
+- diagnostic-route memory plateaued at 2.020 GiB in Sawato and 2.061 GiB on
+  final Caul rather than growing without bound;
+- instrumented-route GPU p95 stayed at or below 2.8 ms.
+
+The roughly 2 GiB diagnostic working set is not the ordinary client footprint:
+that route deliberately retains the old and new collision representations and
+enables the full current-path render oracle.
+
+A separate ordinary uncapped Release client at Caul with about 21,025 live
+entities, no profiler, no render oracle, and no route automation produced this
+20-sample physical-display result:
+
+- 156 FPS average (140 minimum, 166 p95, 172 maximum);
+- 6.42 ms average displayed frame time;
+- 7.50% average whole-machine CPU;
+- 27.07% average GPU 3D utilization;
+- 1.080 GiB average working set;
+- 1.291 GiB average private bytes.
+
+The uncapped GPU percentage is demand created by rendering as fast as the CPU
+can submit frames, not evidence of a GPU bottleneck: measured GPU frame p95
+remained below 3 ms while displayed frame time was about 6.4 ms. Memory remains
+above the target while both collision representations are intentionally
+resident; the accepted graph-removal step must measure the reduction.
+
+A later 20-sample repeat from the same still-connected process confirmed the
+plateau: working set stayed exactly 1.059 GiB and private bytes exactly
+1.236 GiB throughout the sample. It averaged 177.6 FPS / 5.65 ms, 7.67%
+whole-machine CPU, and 30.40% GPU 3D. The higher GPU percentage tracked the
+higher uncapped frame rate; it did not coincide with working-set growth.
+
 ## Acceptance boundary
 
 The automated cutover gate is complete. Before deleting the referee and parsed