diff --git a/AGENTS.md b/AGENTS.md
index d6028aa0..7db6efbd 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -364,14 +364,19 @@ Release suite passes 8,728/5 skips. K2 completed at `7e8acb74` plus
 local-player frame sequence, complete generation-gated bot commands, and
 ordered lifecycle/entity/inventory/chat/movement/portal/combat/command event
 stream pass 411 Runtime tests, 31 Headless tests, 3,732 App tests / 3 skips,
-and 8,744 complete Release tests / 5 skips. K3's automated checkpoint landed
-across `12b500d3`, `9569dadb`, and `b6547ff3`: exact process content leases,
+and 8,744 complete Release tests / 5 skips. K3 completed across `12b500d3`,
+`9569dadb`, `b6547ff3`, and `3f340125`: exact process content leases,
 immutable magic/terrain/bounded collision sharing, presentation-free
 local-player/collision hydration, 1/5/10-session same-GUID/portal/reconnect
 isolation, and policy-fault quarantine pass 412 Runtime, 42 Headless, 3,722 App
-tests / 3 skips, and 8,758 complete Release tests / 5 skips. The
-visible-terminal Windows and Linux/WSL production gates remain before K3
-closes.
+tests / 3 skips, and 8,758 complete Release tests / 5 skips. The connected
+closeout adds direct single-session CLI launch, four-stop portal routing,
+external teleport handling, retail-correct normal Position versus
+ForcePosition projection, explicit-only collision diagnostics, visible Windows
+and native Linux production runs, user-accepted smooth retail-observer
+movement, and ACE-confirmed graceful logout. Final gates pass 412 Runtime, 47
+Headless, 3,722 App / 3 skips, and 8,764 complete Release tests / 5 skips.
+K4 1/5/10/30-session resource-ceiling and stress work is active.
 J0's rollback is
 `git revert b632672e5ccabfb44c551e08f1c411ab2669c44a`.
 J1's rollback is
@@ -435,6 +440,9 @@ K1's rollback is
 K2's rollback is, newest first,
 `git revert 38e83640d907ee3e0819f3b38ca117ca60914d6b` then
 `git revert 7e8acb74dd20931d5ba88430fd100cd074a32e4d`.
+K3's connected-closeout rollback is
+`git revert 3f3401257c83bdd9f557eb577ba08cf2e5ec9a06`; its earlier automated
+checkpoint rollbacks remain recorded in the Slice K plan.
 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 closed in
diff --git a/CLAUDE.md b/CLAUDE.md
index 292a2b8d..2bc2e102 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -362,14 +362,19 @@ Release suite passes 8,728/5 skips. K2 completed at `7e8acb74` plus
 local-player frame sequence, complete generation-gated bot commands, and
 ordered lifecycle/entity/inventory/chat/movement/portal/combat/command event
 stream pass 411 Runtime tests, 31 Headless tests, 3,732 App tests / 3 skips,
-and 8,744 complete Release tests / 5 skips. K3's automated checkpoint landed
-across `12b500d3`, `9569dadb`, and `b6547ff3`: exact process content leases,
+and 8,744 complete Release tests / 5 skips. K3 completed across `12b500d3`,
+`9569dadb`, `b6547ff3`, and `3f340125`: exact process content leases,
 immutable magic/terrain/bounded collision sharing, presentation-free
 local-player/collision hydration, 1/5/10-session same-GUID/portal/reconnect
 isolation, and policy-fault quarantine pass 412 Runtime, 42 Headless, 3,722 App
-tests / 3 skips, and 8,758 complete Release tests / 5 skips. The
-visible-terminal Windows and Linux/WSL production gates remain before K3
-closes.
+tests / 3 skips, and 8,758 complete Release tests / 5 skips. The connected
+closeout adds direct single-session CLI launch, four-stop portal routing,
+external teleport handling, retail-correct normal Position versus
+ForcePosition projection, explicit-only collision diagnostics, visible Windows
+and native Linux production runs, user-accepted smooth retail-observer
+movement, and ACE-confirmed graceful logout. Final gates pass 412 Runtime, 47
+Headless, 3,722 App / 3 skips, and 8,764 complete Release tests / 5 skips.
+K4 1/5/10/30-session resource-ceiling and stress work is active.
 J0's rollback is
 `git revert b632672e5ccabfb44c551e08f1c411ab2669c44a`.
 J1's rollback is
@@ -433,6 +438,9 @@ K1's rollback is
 K2's rollback is, newest first,
 `git revert 38e83640d907ee3e0819f3b38ca117ca60914d6b` then
 `git revert 7e8acb74dd20931d5ba88430fd100cd074a32e4d`.
+K3's connected-closeout rollback is
+`git revert 3f3401257c83bdd9f557eb577ba08cf2e5ec9a06`; its earlier automated
+checkpoint rollbacks remain recorded in the Slice K plan.
 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 closed in
diff --git a/docs/plans/2026-04-11-roadmap.md b/docs/plans/2026-04-11-roadmap.md
index e41da2d3..9ca8f387 100644
--- a/docs/plans/2026-04-11-roadmap.md
+++ b/docs/plans/2026-04-11-roadmap.md
@@ -1,6 +1,6 @@
 # acdream — strategic roadmap
 
-**Status:** Living document. Updated 2026-07-27. **M3 landed; M4 is active.** M3's retail casting/UI, R6 locomotion/collision/projectile/teleport/radar rebaseline, deterministic fresh-login/portal world lifecycle, and final two-client portal observer flow are user-gated. All eight slices of the behavior-preserving ownership campaign in [`docs/architecture/code-structure.md`](../architecture/code-structure.md), their automated closeout, and the user's connected visual matrix are complete. Modern Runtime J3 canonical entity/object lifetime and J4 gameplay-state ownership are closed at `89e6b207`; J5.1 canonical selection/combat/target-mode ownership is closed at `b298f99f`, J5.2 interaction transactions at `f5f7b417`, J5.3 combat/magic intent at `20df9d15`, J5.4 local movement/outbound cadence at `aa3f4a60`, J5.5 per-session physics/remote simulation at `7e6033d0`, J5.6 projectile simulation at `2aee3356`, and J5.7 combined simulation closeout at `cdee7a4b`. J6.1 world-environment ownership is closed at `902076c0`; J6.2 canonical reveal generation and typed destination readiness is closed at `a6860d55` plus `acb845d8`; J6.3 exact F751/Position destination correlation is closed at `6a063a27`; J6.4 exact graphical-host acknowledgement and owner cleanup is closed at `18d17d8b`. J7's one graphical `GameRuntime` root is closed at `ce41efb9`, including the user's 2026-07-27 exact post-cutover visual acceptance. J8 closed Slice J at `a9a822f2` with one shared graphical/no-window root and generation-reset transaction. Slice K Linux headless/multi-session work is active; K0's tested no-presentation Windows/Linux boundary closed at `aada8a37`, K1's real portable single-session host closed at `f8cb840f`, and K2's deterministic scheduler plus complete shared bot command/event path closed at `7e8acb74` plus `38e83640`. K3's shared-content, collision-hydration, 1/5/10-session isolation, and fault-quarantine automated checkpoint landed at `12b500d3`, `9569dadb`, and `b6547ff3`; its visible-terminal Windows and Linux/WSL production gates remain. Issue #225's lifestone/particle alpha comparison remains a separate rendering visual gate.
+**Status:** Living document. Updated 2026-07-27. **M3 landed; M4 is active.** M3's retail casting/UI, R6 locomotion/collision/projectile/teleport/radar rebaseline, deterministic fresh-login/portal world lifecycle, and final two-client portal observer flow are user-gated. All eight slices of the behavior-preserving ownership campaign in [`docs/architecture/code-structure.md`](../architecture/code-structure.md), their automated closeout, and the user's connected visual matrix are complete. Modern Runtime J3 canonical entity/object lifetime and J4 gameplay-state ownership are closed at `89e6b207`; J5.1 canonical selection/combat/target-mode ownership is closed at `b298f99f`, J5.2 interaction transactions at `f5f7b417`, J5.3 combat/magic intent at `20df9d15`, J5.4 local movement/outbound cadence at `aa3f4a60`, J5.5 per-session physics/remote simulation at `7e6033d0`, J5.6 projectile simulation at `2aee3356`, and J5.7 combined simulation closeout at `cdee7a4b`. J6.1 world-environment ownership is closed at `902076c0`; J6.2 canonical reveal generation and typed destination readiness is closed at `a6860d55` plus `acb845d8`; J6.3 exact F751/Position destination correlation is closed at `6a063a27`; J6.4 exact graphical-host acknowledgement and owner cleanup is closed at `18d17d8b`. J7's one graphical `GameRuntime` root is closed at `ce41efb9`, including the user's 2026-07-27 exact post-cutover visual acceptance. J8 closed Slice J at `a9a822f2` with one shared graphical/no-window root and generation-reset transaction. Slice K Linux headless/multi-session work is active; K0's tested no-presentation Windows/Linux boundary closed at `aada8a37`, K1's real portable single-session host closed at `f8cb840f`, and K2's deterministic scheduler plus complete shared bot command/event path closed at `7e8acb74` plus `38e83640`. K3 closed at `3f340125` after the shared-content/collision/isolation checkpoint, visible-terminal Windows and native Linux production runs, four-stop portal route, external-teleport handling, and user-accepted retail-observer movement. K4 30-session resource and stability work is active. Issue #225's lifestone/particle alpha comparison remains a separate rendering visual gate.
 **Purpose:** One source of truth for where the project is and where it's going. Every observed defect or missing feature has a named phase that owns it; when something looks wrong in-game, look here to find the phase that'll address it. Implementation details live in per-phase specs under `docs/superpowers/specs/`, not in this file.
 
 ---
@@ -1805,10 +1805,10 @@ port in any phase — no separate listing here.
 > single-session Windows/Linux host closed at `f8cb840f` after both platforms
 > completed the same real ACE connect, portal, graceful reconnect, and terminal
 > teardown gate. K2's absolute-deadline scheduler and full typed bot-command/
-> event parity closed at `7e8acb74` plus `38e83640`; K3's automated
-> shared-content/collision/isolation checkpoint landed at `12b500d3`,
-> `9569dadb`, and `b6547ff3`. Its visible-terminal Windows and Linux/WSL
-> production gates remain.
+> event parity closed at `7e8acb74` plus `38e83640`; K3 closed at
+> `3f340125` after the shared-content/collision/isolation checkpoint, visible
+> Windows and native Linux production runs, exact portal routing, graceful
+> teardown, and user-accepted retail-observer movement. K4 is active.
 > The historical exact cutover
 > rollback remains
 > `git revert ef1d263337997bb030eadb7b8e71d73dc659907a`. Slice H is complete:
@@ -1854,8 +1854,8 @@ hitch and follows.
 > **PROMOTED TO ACTIVE MODERN RUNTIME SLICES K/L.** Slice K now executes the
 > no-window Linux host and approximately 30-session target from
 > [`2026-07-26-modern-runtime-slice-k.md`](2026-07-26-modern-runtime-slice-k.md);
-> Slice L executes the graphical Linux/platform work. K0-K2 are complete and
-> K3 is active. The historical LH rows below remain the stable outcome map.
+> Slice L executes the graphical Linux/platform work. K0-K3 are complete and
+> K4 is active. The historical LH rows below remain the stable outcome map.
 
 The governing architectural rule is that a game session must not be a hidden
 `GameWindow`. Authentication, networking, world state, movement, inventory,
diff --git a/docs/plans/2026-05-12-milestones.md b/docs/plans/2026-05-12-milestones.md
index 904632c6..25cda837 100644
--- a/docs/plans/2026-05-12-milestones.md
+++ b/docs/plans/2026-05-12-milestones.md
@@ -294,14 +294,17 @@ residency is `0/0/0` at every stable checkpoint and teardown converges. Slice I
   absolute-deadline scheduler, the shared Runtime local-player frame sequence,
   complete generation-gated bot commands, and lifecycle/entity/inventory/chat/
   movement/portal/combat/command events pass 411 Runtime, 31 Headless, 3,732
-  App / 3 skips, and 8,744 complete Release tests / 5 skips. K3's automated
-  checkpoint landed across `12b500d3`, `9569dadb`, and `b6547ff3`: exact
+  App / 3 skips, and 8,744 complete Release tests / 5 skips. K3 completed
+  across `12b500d3`, `9569dadb`, `b6547ff3`, and `3f340125`: exact
   process content leases, immutable magic/terrain/bounded collision sharing,
   presentation-free local-player/collision hydration, 1/5/10-session
-  same-GUID/portal/reconnect isolation, and policy-fault quarantine pass 412
-  Runtime, 42 Headless, 3,722 App / 3 skips, and 8,758 complete Release tests
-  / 5 skips. The visible-terminal Windows and Linux/WSL production gates
-  remain before K3 closes.
+  same-GUID/portal/reconnect isolation, and policy-fault quarantine are joined
+  by the visible-terminal Windows and native Linux/WSL production gates.
+  Direct launch, four-stop portal routing, external `teleallto`, retail-client
+  observer movement, graceful logout, and the corrected normal-position versus
+  ForcePosition routing pass. Final gates report 412 Runtime, 47 Headless,
+  3,722 App / 3 skips, and 8,764 complete Release tests / 5 skips. K4
+  1/5/10/30-session resource-ceiling and stress work is active.
 Slice-I closeout evidence is
 [`../research/2026-07-25-slice-i7-closeout.md`](../research/2026-07-25-slice-i7-closeout.md).
 Slice-J2 closeout evidence is
diff --git a/docs/plans/2026-07-26-modern-runtime-slice-k.md b/docs/plans/2026-07-26-modern-runtime-slice-k.md
index 8a26578e..88d7fcd5 100644
--- a/docs/plans/2026-07-26-modern-runtime-slice-k.md
+++ b/docs/plans/2026-07-26-modern-runtime-slice-k.md
@@ -1,6 +1,6 @@
 # Modern runtime Slice K — Linux headless and multi-session host
 
-**Status:** K0–K2 COMPLETE; K3 AUTOMATED CHECKPOINT COMPLETE, CONNECTED GATE ACTIVE 2026-07-27
+**Status:** K0–K3 COMPLETE; K4 ACTIVE 2026-07-27
 **Parent:** `2026-07-24-modern-runtime-architecture.md`, Slice K
 **Authorization:** the user approved Slices F–L on 2026-07-24
 **Purpose:** run efficient automated clients on Linux without a display, GPU,
@@ -171,11 +171,14 @@ Support non-interactive providers suitable for local automation:
 - standard-input secret stream;
 - credential file with an explicit user-only-permission check on Linux.
 
-Do not accept a plaintext password directly on the command line because process
-lists expose it. `ToString`, validation errors, logs, checkpoints, crash
-reports, and metrics contain only redacted credential IDs. Secrets are cleared
-from retained buffers when the session is disposed where the BCL representation
-allows it.
+The user additionally requires an explicit `-user`/`-password` (and long-form
+alias) launch override for local single-session automation. It is accepted only
+for `run` with exactly one configured session and intentionally carries the
+ordinary process-list exposure of command-line arguments. Configuration-based
+multi-session production continues to use the providers above. `ToString`,
+validation errors, logs, checkpoints, crash reports, and metrics never echo the
+password, and the session wraps the value in the same disposable credential
+owner used by provider-based launch.
 
 ## 6. Bot surface
 
@@ -293,7 +296,7 @@ not busy-loop.
 
 ### K3 — shared immutable content and isolation
 
-**Automated checkpoint complete at `12b500d3`, `9569dadb`, and `b6547ff3`.**
+**Complete at `12b500d3`, `9569dadb`, `b6547ff3`, and `3f340125`.**
 The process opens the exact DAT/pak/magic/terrain sources once, shares a
 bounded immutable flat-collision cache, and gives each session its own
 Runtime/physics/cache/movement/collision-neighborhood graph. The direct
@@ -301,8 +304,26 @@ accepted-state route now hydrates local-player movement and terrain, EnvCell,
 building, stab, and procedural-scenery collision without loading presentation.
 The 1/5/10-session same-GUID/portal/reconnect gate and policy-fault quarantine
 pass. Runtime passes 412 tests, Headless 42, App 3,722/3 skips, and the complete
-Release solution 8,758/5 skips. The remaining K3 work is the visible-terminal
-Windows connected gate plus the matching Linux/WSL production gate. Evidence:
+Release solution 8,758/5 skips.
+
+The connected closeout adds explicit portal-route and long-lived observer
+policies as consumers of the same `IGameRuntimeView` /
+`IGameRuntimeCommands` seam used by graphical automation. It also aligns the
+direct host with retail position routing: ordinary accepted position echoes no
+longer re-run teleport placement or stop local motion, `ForcePosition` uses
+`BlipPlayer` semantics plus an immediate position acknowledgement, and a real
+teleport performs exactly one destination placement. High-volume collision
+snap diagnostics are now explicitly opt-in.
+
+The visible Windows production terminal passed connect, collision hydration,
+lifestone recall, graceful reconnect, second-generation materialization, and
+terminal teardown. The native Linux/WSL executable then passed direct CLI
+launch, exact Aerlinthe/Caul/Rynthid/lifestone routing, external `teleallto`
+portal generations, and a retail-client observer gate. The user saw the
+headless character turn and run smoothly without rubberbanding; three accepted
+external portal generations completed before ACE confirmed graceful logout.
+The final Release gate passes 412 Runtime tests, 47 Headless tests, 3,722 App
+tests / 3 skips, and 8,764 complete-solution tests / 5 skips. Evidence:
 `docs/research/2026-07-27-slice-k3-shared-content-isolation-checkpoint.md`.
 
 - Introduce a process content owner with leases and exact last-user disposal.
@@ -402,9 +423,10 @@ git revert 38e83640d907ee3e0819f3b38ca117ca60914d6b
 git revert 7e8acb74dd20931d5ba88430fd100cd074a32e4d
 ```
 
-K3 automated-checkpoint rollback, newest first:
+K3 rollback, newest first:
 
 ```text
+git revert 3f3401257c83bdd9f557eb577ba08cf2e5ec9a06
 git revert b6547ff38c375328417855200f41c8af6436f246
 git revert 9569dadb578b299b24e30aec85eee86ec0c2b3fb
 git revert 12b500d38362e8aae0a23a4f9712b86367006f76
diff --git a/docs/research/2026-07-27-slice-k3-shared-content-isolation-checkpoint.md b/docs/research/2026-07-27-slice-k3-shared-content-isolation-checkpoint.md
index 01344677..29273a93 100644
--- a/docs/research/2026-07-27-slice-k3-shared-content-isolation-checkpoint.md
+++ b/docs/research/2026-07-27-slice-k3-shared-content-isolation-checkpoint.md
@@ -1,8 +1,8 @@
-# Slice K3 shared-content and isolation checkpoint
+# Slice K3 shared-content and isolation closeout
 
 **Date:** 2026-07-27
-**Status:** Automated checkpoint complete; connected Windows/Linux gate remains
-**Commits:** `12b500d3`, `9569dadb`, `b6547ff3`
+**Status:** Complete
+**Commits:** `12b500d3`, `9569dadb`, `b6547ff3`, `3f340125`
 
 ## Outcome
 
@@ -43,21 +43,52 @@ attributed safely across sessions.
   array, and bounded collision source are shared; mutable physics/cache/
   movement owners are not.
 
-## Remaining K3 gate
+## Connected production evidence
 
-1. Run the production Release executable against local ACE in a visible
-   terminal with no window, renderer, audio, or UI assemblies.
-2. Observe initial collision hydration, lifestone recall, reconnect, and exact
-   final content-lease disposal.
-3. Repeat the production gate on Linux/WSL.
-4. Add the connected resource evidence and close K3 before deriving K4's
-   numeric 1/5/10/30-session ceilings.
+The Windows visible-terminal Release host connected to local ACE without a
+window, renderer, audio, or UI assembly. It hydrated collision, completed a
+lifestone recall, performed the absolute-deadline graceful reconnect, entered
+the second generation, and converged through ACE-confirmed graceful logout.
+
+The native Linux/WSL Release host then connected through the same production
+composition using direct single-session `-user`/`-password` launch. The fixed
+portal-route policy completed Aerlinthe, Caul, Rynthid, and lifestone stops.
+The long-lived observer policy entered Rynthid, accepted two further external
+`teleallto` destinations, and continued to issue typed turn/run intents.
+A retail client observed the same server-visible character and the user
+accepted its smooth movement without rubberbanding.
+
+The live run exposed two connected-only defects and corrected them at their
+owner boundaries:
+
+- zero-delta collision snap tracing wrote every frame; production now leaves
+  the explicit diagnostic sink unset;
+- every ordinary local Position echo re-ran full teleport synchronization,
+  stopping motion and snapping the headless controller. Direct projection now
+  ignores normal Apply echoes, blips only `ForcePosition`, acknowledges the
+  force immediately, and retains one full placement for real teleports.
+
+The accepted Linux run completed three external portal generations and then
+produced `graceful logout requested`, `graceful logout confirmed`, stopped,
+and disposed records. The bot policies contain no private movement or world
+model: they consume `IGameRuntimeView`, `IGameRuntimeCommands`, and the same
+Runtime local-player frame and outbound serializers as the graphical host.
+
+Final automated evidence after the corrections:
+
+- Release build: zero warnings and zero errors.
+- Runtime: 412 passed.
+- Headless: 47 passed.
+- App: 3,722 passed / 3 skipped.
+- Complete solution: 8,764 passed / 5 skipped.
+- Native Ubuntu .NET 10 Release build: zero warnings and zero errors.
 
 ## Exact rollback
 
 Newest first:
 
 ```text
+git revert 3f3401257c83bdd9f557eb577ba08cf2e5ec9a06
 git revert b6547ff38c375328417855200f41c8af6436f246
 git revert 9569dadb578b299b24e30aec85eee86ec0c2b3fb
 git revert 12b500d38362e8aae0a23a4f9712b86367006f76
diff --git a/memory/project_modern_runtime_headless.md b/memory/project_modern_runtime_headless.md
new file mode 100644
index 00000000..671f259e
--- /dev/null
+++ b/memory/project_modern_runtime_headless.md
@@ -0,0 +1,67 @@
+# Modern Runtime headless continuation
+
+## Current checkpoint
+
+Slice J is closed. Slice K0-K3 are closed; K4 is active.
+
+K3's production closeout commit is `3f340125`. Its automated predecessors are
+`12b500d3`, `9569dadb`, and `b6547ff3`.
+
+The Windows visible-terminal host and native Linux/WSL host both connected to
+local ACE without loading presentation assemblies. Linux completed the
+Aerlinthe/Caul/Rynthid/lifestone route, accepted external `teleallto`
+destinations, remained visible to a retail observer, turned and ran smoothly,
+and shut down through ACE-confirmed graceful logout. The user accepted the
+observer movement gate on 2026-07-27.
+
+## Important connected correction
+
+`RuntimeLiveEntitySessionController` passes the exact accepted
+`PositionTimestampDisposition` to the direct world projection.
+
+- Normal `Apply` echoes update canonical state but do not reset the local
+  headless movement controller.
+- `ForcePosition` uses `BlipPosition`, preserves active movement semantics, and
+  sends an immediate autonomous-position acknowledgement.
+- A real teleport performs one full synchronization from
+  `PrepareDestination`.
+
+Do not reintroduce full local-player synchronization for every accepted
+Position packet; it stops movement and causes retail observers to see repeated
+run/snap-back rubberbanding.
+
+Collision `[snap]` output is high volume and must remain behind the explicit
+`PhysicsEngine.DiagnosticLog` sink.
+
+## Automation seam
+
+Graphical automation and headless policies use `IGameRuntimeView`,
+`IGameRuntimeCommands`, `IRuntimeEventSource`, and the same
+`RuntimeLocalPlayerFrameController`/outbound serializers. The route and
+observer policies are diagnostic consumers, not a second bot world or
+movement implementation.
+
+The user requires optional direct single-session CLI launch with
+`-user`/`-password` or the long-form aliases. Multi-session configuration
+continues to use credential providers.
+
+## Next work
+
+Execute K4 from `docs/plans/2026-07-26-modern-runtime-slice-k.md`:
+
+1. capture reproducible 1/5/10-session warm resource baselines;
+2. derive and commit numeric per-session/process ceilings;
+3. build the 30-session connected stress configuration and workload;
+4. run the two-hour Linux soak with recurring movement, use, combat/cast,
+   chat, portal, cancellation, and reconnect;
+5. prove stable final-hour plateaus and exact teardown convergence;
+6. close Slice K, then start Slice L Linux graphical/platform work.
+
+Final K3 automated counts: Runtime 412, Headless 47, App 3,722 / 3 skips,
+complete Release 8,764 / 5 skips.
+
+K3 connected-closeout rollback:
+
+```text
+git revert 3f3401257c83bdd9f557eb577ba08cf2e5ec9a06
+```