Audit MagicTile renderer-port evidence
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@ -7,6 +7,10 @@ Created on `2026-06-19`
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- first-party HyperTwist packet
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- spec-only `Phase 7D` decision/control slice
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- no implementation widening is granted by this packet
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- adjacent evidence status on `2026-06-19`: the current embedded-browser lane
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was audited in
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`docs/arch/HYPERTWIST_PHASE7D_MAGICTILE_RENDERER_PORT_EVIDENCE_AUDIT_2026-06-19.md`
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and the verdict remained explicit `No-Go`
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## Purpose
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# HyperTwist Phase 7D MagicTile renderer-port evidence audit
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Created on `2026-06-19`
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## Status
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- first-party HyperTwist packet
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- spec-only `Phase 7D` evidence/control slice
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- no implementation widening is granted by this packet
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## Purpose
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This packet audits the currently landed `MagicTile` embedded-browser lane
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against the explicit `Phase 7D` renderer-port go/no-go criteria.
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The required output is not a renderer plan. It is:
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- an evidence-backed verdict on whether native renderer widening is currently
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justified
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- an explicit record of which `Phase 7D` criteria are already satisfied only
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as prerequisites and which are still missing
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- a stable authority note that keeps future widening closed unless real new
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evidence appears
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## Current authority basis
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This audit stands on:
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- `docs/arch/HYPERTWIST_PHASE7D_MAGICTILE_RENDERER_PORT_DECISION_PACKET_2026-06-19.md`
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- `docs/arch/HYPERTWIST_PHASE7C_MAGICTILE_NATIVE_BEHAVIOR_PROOF_IMPLEMENTATION_PACKET_2026-06-19.md`
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- `docs/arch/HYPERTWIST_PHASE8B_OPTIONAL_FULL_BROWSER_CLIENT_HTTP_BACKEND_PREPARATION_PACKET_2026-06-19.md`
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- `docs/ops/HYPERTWIST_COMPREHENSIVE_RECONSTRUCTION_ROADMAP_2026-06-10.md`
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- `docs/v6_5_deep_manual_pack/HyperTwist/ROADMAP.md`
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- `docs/v6_5_deep_manual_pack/HyperTwist/ARCHITECTURE.md`
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- `docs/v6_5_deep_manual_pack/HyperTwist/FEATURE_REGISTRY.md`
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- `docs/ops/HYPERTWIST_IMPLEMENTATION_PHASE_1_KICKOFF.md`
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## Evidence reviewed
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Current embedded-browser lane evidence:
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- `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistBrowser/HyperTwistBrowserWidget.h`
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- `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistBrowser/HyperTwistBrowserWidget.cpp`
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- `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistBrowser/HyperTwistBrowserBridgeObject.h`
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- `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistBrowser/HyperTwistBrowserBridgeObject.cpp`
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- `Content/Browser/index.html`
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- `Content/Browser/src/browser-runtime-bootstrap.js`
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- `Content/Browser/src/browser-spatial-runtime-fallback.js`
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Focused automation evidence:
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- `UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistBrowserBridgeObjectTest.cpp`
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- `UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistMagicTilePhase7HostBridgeContractTest.cpp`
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- `UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistMagicTilePhase7CNativeBehaviorProofTest.cpp`
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Previously landed validation evidence:
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- Windows Unreal build succeeded on `2026-06-19` on isolated worktree
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`C:\HyperTwist_worktrees\phase10validate`
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- `HyperTwist.FirstParty.MagicTile.*` regression suite passed `7/7`
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- `HyperTwist.Browser.*` regression suite passed `4/4`
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- `HyperTwist.Permissive.MagicTile.*` regression suite passed `6/6`
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## Audit findings
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The reviewed code and tests show:
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- the current embedded-browser shell is a real first-party shipping lane, not
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a placeholder
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- `UHyperTwistBrowserWidget` already binds the authoritative browser shell and
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pushes shell state plus tiling state envelopes across the first-party bridge
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- `UHyperTwistBrowserBridgeObject` already caches and decodes typed tiling
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state envelopes through first-party training tiling helpers
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- the browser shell has bundled-runtime and fallback-runtime behavior rather
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than a brittle single-path bootstrap
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- the landed `Phase 7A` and `Phase 7B` tests already prove the current host
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decision, bridge contract, scramble normalization, and timer continuity
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- the landed `Phase 7C` proof seam already covers the key pre-renderer
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behavior vocabulary:
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- selected-cell focus
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- candidate-twist disambiguation
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- preview token derivation
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- commit or cancel semantics
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- shared scramble normalization
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- timer continuity
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No reviewed artifact demonstrated a current browser-host failure that requires
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native spherical or hyperbolic renderer ownership to proceed.
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## Criteria scorecard
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| `Phase 7D` criterion | Current status | Audit result |
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| --- | --- | --- |
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| Concrete first shipping target | Missing | No active renderer request currently names one puzzle/geometry family, one projection or view contract, and one bounded renderer-facing interaction surface. |
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| Real browser-host insufficiency | Missing | The landed browser shell, bridge object, bundled/fallback runtime path, and browser automation currently support the existing lane rather than proving a gap. |
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| `Phase 7C` behavior vocabulary reused as authority | Present as prerequisite | The landed proof seam already owns selected-cell focus, twist disambiguation, preview, commit/cancel, scramble normalization, and timer continuity, but that alone does not justify renderer widening. |
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| Bounded first-party renderer-only scope | Missing | No current slice narrows the future work to one renderer-only pilot above the landed browser host/bridge posture. |
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| Explicit Windows renderer validation plan | Missing | Current Windows build and regression proof validate the existing browser/proof lane, not a renderer-facing delta. |
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| Authority boundaries preserved | Present as prerequisite | Current posture stays first-party, keeps `WinForms` / `OpenTK` ownership closed, and keeps the optional full-browser client path separate from native renderer decisions. |
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## Verdict
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The current renderer-port decision remains hard `No-Go`.
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That verdict is required by the evidence, not by preference:
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- the existing embedded-browser lane is functioning as an intentional owned
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product surface
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- the landed `Phase 7C` proof seam already closes the pre-renderer behavior
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gap that previously justified caution
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- no concrete browser-host failure has been shown
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- no bounded renderer-only target has been named
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- no renderer-specific Windows build and regression plan exists yet
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## What would be required to reopen later
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Future native renderer widening may reopen only if a later packet adds all of
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the following:
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1. one explicit first shipping target:
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- one puzzle or geometry family
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- one projection or view posture
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- one bounded interaction surface above the landed `Phase 7C` seam
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2. one demonstrated browser-host failure that remains after using the landed
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shell, bridge, and state-envelope vocabulary as intended
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3. one renderer-only pilot scope that does not reopen host-shell or generic
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runtime-base ownership
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4. one explicit Windows build plus focused renderer regression plan alongside
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reruns of `HyperTwist.FirstParty.MagicTile`, `HyperTwist.Browser`, and
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`HyperTwist.Permissive.MagicTile`
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## Queue effect
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If this audit lands cleanly:
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- the `Phase 7D` decision packet remains the authority gate
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- the current embedded-browser/CEF lane remains the active shipping posture
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- the optional full-browser client branch remains a separate spec lane
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- future native renderer work remains closed until a later request supplies new
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evidence rather than speculation
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@ -405,6 +405,7 @@ Closure read:
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- [x] Require any later native renderer request to prove a real browser-host insufficiency, bounded owned-surface scope, `Phase 7C` behavior parity, and a full Windows validation plan before widening can reopen
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- [x] Keep the default posture explicit `No-Go` for broad non-Euclidean interaction-shell replacement, `WinForms` / `OpenTK` host-shell reopening, or generic runtime-base replacement
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- Spec-only decision gate frozen on `2026-06-19`: `docs/arch/HYPERTWIST_PHASE7D_MAGICTILE_RENDERER_PORT_DECISION_PACKET_2026-06-19.md` now records the authoritative future renderer-port criteria; `Phase 7C` alone no longer implies widening permission
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- Evidence audit frozen on `2026-06-19`: `docs/arch/HYPERTWIST_PHASE7D_MAGICTILE_RENDERER_PORT_EVIDENCE_AUDIT_2026-06-19.md` scored the live browser shell, bridge, and `Phase 7C` proof seam against the gate and kept the branch hard `No-Go` because no real browser-host insufficiency or bounded renderer target is currently demonstrated
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**Estimated actions:** 80–150
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**Estimated time:** 1–2 weeks
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@ -140,6 +140,9 @@ Use these as the current governing docs:
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- that packet keeps the default posture explicit `No-Go` unless a later slice proves a real
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browser-host gap, bounded owned-surface scope, `Phase 7C` behavior parity, and full Windows
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validation
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- the adjacent `2026-06-19` evidence audit kept that `No-Go` verdict in force because the live
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browser shell, browser bridge, and `Phase 7C` proof seam do not currently show a real
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browser-host failure or a bounded renderer-only target
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## Historical landed continuity chain
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@ -122,6 +122,12 @@ decision beyond that now-landed `Phase 7C` proof seam, and the default posture
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for that branch is now `No-Go` unless the separate `Phase 7D` decision packet
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criteria are satisfied.
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The adjacent `Phase 7D` evidence audit on `2026-06-19` kept that verdict in
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force after reviewing the live browser shell, browser bridge, bundled/fallback
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runtime path, host-bridge tests, and `Phase 7C` proof seam: the current lane
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does not yet show a real browser-host insufficiency or a bounded renderer-only
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target.
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## Canonical product lanes
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### 1. Physical cube pipeline
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@ -270,7 +270,7 @@ repo.
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| Embedded browser host decision for non-Euclidean tiling | Implemented now | landed first-party `MagicTile` `Phase 7A` | Current bounded `MagicTile` host posture routes live non-Euclidean interaction through the already-landed embedded browser/CEF shell with retained `three.js` and `react-three-fiber`, while native spherical/hyperbolic renderer ownership and the legacy `WinForms` / `OpenTK` host shell remain deferred. |
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| Tiling browser state bridge, shared scramble normalization, and unified timer transport | Implemented now | landed first-party `MagicTile` `Phase 7B` | First-party tiling state envelopes, bridge-contract descriptors, browser widget/bridge decoding, scramble normalization, and training-timer continuity are live above the embedded-browser host posture without reopening generic runtime-base replacement. |
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| Native MagicTile behavior proof contract and probe | Implemented now | landed first-party `MagicTile` `Phase 7C` | First-party native behavior proof contract/probe now carry selected-cell focus, candidate-twist disambiguation, preview token, commit or cancel semantics, and timer continuity above the landed browser host/bridge seam without claiming renderer-port or legacy host ownership. |
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| Optional native MagicTile renderer-port path above the landed proof seam | Deep-source grounded retained | landed first-party `MagicTile` `Phase 7D` decision packet | This branch is now defined only as an explicit go/no-go lane. Default posture remains `No-Go` unless a later packet proves a real browser-host insufficiency, bounded owned-surface scope, `Phase 7C` behavior parity, and full Windows validation. |
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| Optional native MagicTile renderer-port path above the landed proof seam | Deep-source grounded retained | landed first-party `MagicTile` `Phase 7D` decision packet | This branch is now defined only as an explicit go/no-go lane. Default posture remains `No-Go` unless a later packet proves a real browser-host insufficiency, bounded owned-surface scope, `Phase 7C` behavior parity, and full Windows validation. The adjacent `2026-06-19` evidence audit kept the branch closed because the live browser shell, bridge, and `Phase 7C` proof seam currently show no demonstrated host failure and no bounded renderer target. |
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| Dedicated `120-cell` family runtime profile and persistence boundary | Implemented now | landed `Magic120Cell` packet | Current bounded family-specific widening is live beneath the retained `Hyperspeedcube` runtime anchor. |
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| Dedicated `120-cell` symmetry-aware focus view profiles | Implemented now | landed `Magic120Cell` `Phase 6R-AL` | Current bounded settings-derived projection, symmetry preset, logical-visibility, per-cell visibility, and center-cell focus posture are live above the landed dedicated `120-cell` runtime-profile seam without widening into renderer, host-shell, or generic topology ownership. |
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| Dedicated `5D` family runtime profile and persistence boundary | Implemented now | landed `MagicCube5D` packet | Current bounded family-specific widening is live beneath the retained `Hyperspeedcube` runtime anchor. |
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@ -102,6 +102,11 @@ Current consolidated milestone snapshot:
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that keeps the default posture `No-Go` and requires explicit browser-host
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insufficiency, bounded owned-surface scope, `Phase 7C` behavior parity, and
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full Windows validation before any native renderer widening can reopen
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- the current `Phase 7D` evidence audit also remains frozen on `2026-06-19`:
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the live browser shell, browser bridge, and `Phase 7C` proof seam were
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scored against the gate and kept native renderer widening at explicit
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`No-Go` because no real browser-host failure or bounded renderer target is
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currently evidenced
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- classic-cube `Phase 9A` replay recording is now closed through first-party
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runtime capture, `.json` replay persistence, local playback reconstruction,
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schema-light replay normalization across save/load/viewer import, and live
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