implements PLN-0155

crates/console/prometeu-firmware/src/firmware/firmware.rs

@@ -9,7 +9,6 @@ use prometeu_hal::log::LogSource;
 use prometeu_hal::telemetry::CertificationConfig;
 use prometeu_hal::{InputSignals, RuntimePlatform};
 use prometeu_system::{PrometeuHub, ResidentGameState, SystemOS};
-use prometeu_vm::VirtualMachine;
 
 /// PROMETEU Firmware.
 ///
@@ -27,8 +26,6 @@ use prometeu_vm::VirtualMachine;
 /// 2. Delegates the logic update to the current active state.
 /// 3. Handles state transitions (e.g., from Loading to Playing).
 pub struct Firmware {
-    /// The execution engine (PVM) for user applications.
-    pub vm: VirtualMachine,
     /// The underlying OS services (Syscalls, Filesystem, Telemetry).
     pub os: SystemOS,
     /// The internal state of the system launcher (Hub).
@@ -46,7 +43,6 @@ impl Firmware {
     /// Initializes the firmware in the `Reset` state.
     pub fn new(cap_config: Option<CertificationConfig>) -> Self {
         Self {
-            vm: VirtualMachine::default(),
             os: SystemOS::new(cap_config),
             hub: PrometeuHub::new(),
             state: FirmwareState::Reset(ResetStep),
@@ -122,7 +118,6 @@ impl Firmware {
     /// Dispatches the `on_enter` event to the current state implementation.
     fn on_enter(&mut self, signals: &InputSignals, platform: &mut dyn RuntimePlatform) {
         let mut req = PrometeuContext {
-            vm: &mut self.vm,
             os: &mut self.os,
             hub: &mut self.hub,
             boot_target: &self.boot_target,
@@ -150,7 +145,6 @@ impl Firmware {
         platform: &mut dyn RuntimePlatform,
     ) -> Option<FirmwareState> {
         let mut req = PrometeuContext {
-            vm: &mut self.vm,
             os: &mut self.os,
             hub: &mut self.hub,
             boot_target: &self.boot_target,
@@ -173,7 +167,6 @@ impl Firmware {
     /// Dispatches the `on_exit` event to the current state implementation.
     fn on_exit(&mut self, signals: &InputSignals, platform: &mut dyn RuntimePlatform) {
         let mut req = PrometeuContext {
-            vm: &mut self.vm,
             os: &mut self.os,
             hub: &mut self.hub,
             boot_target: &self.boot_target,
@@ -532,6 +525,24 @@ mod tests {
         assert!(matches!(firmware.state, FirmwareState::LaunchHub(_)));
     }
 
+    #[test]
+    fn reset_clears_vm_sessions_and_runtime_identity() {
+        let mut firmware = Firmware::new(None);
+        let mut platform = TestPlatform::new();
+        let signals = InputSignals::default();
+
+        firmware.load_cartridge(valid_cartridge(AppMode::Game));
+        firmware.tick(&signals, &mut platform);
+
+        assert_eq!(firmware.os.sessions().vm_session_count(), 1);
+        assert_eq!(firmware.os.vm().current_cartridge_title(), "Valid Cart");
+
+        firmware.change_state(FirmwareState::Reset(ResetStep), &signals, &mut platform);
+
+        assert_eq!(firmware.os.sessions().vm_session_count(), 0);
+        assert_eq!(firmware.os.vm().current_cartridge_title(), "");
+    }
+
     #[test]
     fn load_cartridge_routes_system_apps_to_system_running() {
         let mut firmware = Firmware::new(None);

crates/console/prometeu-firmware/src/firmware/firmware_step_hub_home.rs

@@ -20,7 +20,7 @@ impl HubHomeStep {
     }
 
     pub fn on_update(&mut self, ctx: &mut PrometeuContext) -> Option<FirmwareState> {
-        let outcome = ctx.hub.update_shell_profile(ctx.os, ctx.vm, ctx.signals, ctx.platform);
+        let outcome = ctx.hub.update_shell_profile(ctx.os, ctx.platform);
         if let Some(report) = outcome.crash {
             return Some(FirmwareState::AppCrashes(AppCrashesStep { report }));
         }

crates/console/prometeu-firmware/src/firmware/firmware_step_load_cartridge.rs

@@ -38,7 +38,7 @@ impl LoadCartridgeStep {
             self.cartridge.assets.clone(),
         );
 
-        match ctx.os.sessions().load_vm_cartridge(ctx.vm, &self.cartridge) {
+        match ctx.os.sessions().load_vm_cartridge(&self.cartridge) {
             Ok(loaded) => {
                 self.loaded_task_id = Some(loaded.task_id);
                 self.loaded_app_mode = Some(loaded.app_mode);

crates/console/prometeu-firmware/src/firmware/firmware_step_reset.rs

@@ -9,7 +9,8 @@ pub struct ResetStep;
 impl ResetStep {
     pub fn on_enter(&mut self, ctx: &mut PrometeuContext) {
         ctx.os.log(LogLevel::Info, LogSource::Pos, 0, "Firmware Reset".to_string());
-        ctx.os.vm().reset(ctx.vm);
+        ctx.os.sessions().clear_vm_sessions();
+        ctx.os.vm().reset_global_runtime_state();
     }
 
     pub fn on_update(&mut self, ctx: &mut PrometeuContext) -> Option<FirmwareState> {

crates/console/prometeu-firmware/src/firmware/prometeu_context.rs

@@ -1,10 +1,8 @@
 use crate::firmware::boot_target::BootTarget;
 use prometeu_hal::{InputSignals, RuntimePlatform};
 use prometeu_system::{PrometeuHub, SystemOS};
-use prometeu_vm::VirtualMachine;
 
 pub struct PrometeuContext<'a> {
-    pub vm: &'a mut VirtualMachine,
     pub os: &'a mut SystemOS,
     pub hub: &'a mut PrometeuHub,
     pub boot_target: &'a BootTarget,

crates/console/prometeu-system/src/os/facades/sessions.rs

@@ -5,7 +5,6 @@ use crate::task::TaskId;
 use crate::vm_session::{VmSession, VmSessionError};
 use prometeu_hal::app_mode::AppMode;
 use prometeu_hal::cartridge::Cartridge;
-use prometeu_vm::VirtualMachine;
 use std::sync::Arc;
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -72,7 +71,6 @@ impl<'a> SessionsFacade<'a> {
 
     pub fn load_vm_cartridge(
         &mut self,
-        legacy_vm: &mut VirtualMachine,
         cartridge: &Cartridge,
     ) -> Result<LoadedVmCartridge, CrashReport> {
         let existing_game_task = if cartridge.app_mode == AppMode::Game {
@@ -100,7 +98,6 @@ impl<'a> SessionsFacade<'a> {
 
         if !reused_existing_session {
             self.initialize_session_cartridge(task_id, cartridge)?;
-            self.initialize_legacy_active_vm(legacy_vm, cartridge)?;
         }
 
         Ok(LoadedVmCartridge { task_id, app_mode: cartridge.app_mode, reused_existing_session })
@@ -122,6 +119,10 @@ impl<'a> SessionsFacade<'a> {
         self.os.vm_sessions.len()
     }
 
+    pub fn clear_vm_sessions(&mut self) {
+        self.os.vm_sessions.clear();
+    }
+
     fn create_vm_session_for_task(&mut self, task_id: TaskId) -> Result<(), VmSessionError> {
         let task = self.os.task_manager.get(task_id).expect("session task should exist").clone();
         let process = self
@@ -157,13 +158,4 @@ impl<'a> SessionsFacade<'a> {
         session.clear_cartridge_service_state();
         session.runtime.initialize_vm(&mut self.os.log_service, &mut session.vm, cartridge)
     }
-
-    fn initialize_legacy_active_vm(
-        &mut self,
-        legacy_vm: &mut VirtualMachine,
-        cartridge: &Cartridge,
-    ) -> Result<(), CrashReport> {
-        self.os.clear_cartridge_service_state();
-        self.os.vm_runtime.initialize_vm(&mut self.os.log_service, legacy_vm, cartridge)
-    }
 }

crates/console/prometeu-system/src/os/facades/vm.rs

@@ -5,13 +5,11 @@ use crate::vm_session::VmSession;
 use crate::{RenderWorkerConfig, RenderWorkerController};
 use prometeu_bytecode::Value;
 use prometeu_hal::app_mode::AppMode;
-use prometeu_hal::cartridge::Cartridge;
 use prometeu_hal::telemetry::{CertificationConfig, TelemetryFrame};
 use prometeu_hal::{
     FrameId, InputSignals, RenderOwnership, RenderWorkerBackend, RenderWorkerError,
     RenderWorkerFrameSink, RuntimePlatform,
 };
-use prometeu_vm::VirtualMachine;
 use std::sync::atomic::Ordering;
 
 pub struct VmFacade<'a> {
@@ -19,36 +17,6 @@ pub struct VmFacade<'a> {
 }
 
 impl<'a> VmFacade<'a> {
-    pub fn initialize(
-        &mut self,
-        vm: &mut VirtualMachine,
-        cartridge: &Cartridge,
-    ) -> Result<(), CrashReport> {
-        self.os.clear_cartridge_service_state();
-        self.os.vm_runtime.initialize_vm(&mut self.os.log_service, vm, cartridge)
-    }
-
-    pub fn tick(
-        &mut self,
-        vm: &mut VirtualMachine,
-        signals: &InputSignals,
-        platform: &mut dyn RuntimePlatform,
-    ) -> Option<CrashReport> {
-        self.deliver_pending_game_lifecycle_events();
-
-        self.os.vm_runtime.tick(
-            &mut self.os.log_service,
-            &mut self.os.fs,
-            &mut self.os.fs_state,
-            &mut self.os.memcard,
-            &mut self.os.open_files,
-            &mut self.os.next_handle,
-            vm,
-            signals,
-            platform,
-        )
-    }
-
     pub fn tick_session(
         &mut self,
         task_id: TaskId,
@@ -77,25 +45,6 @@ impl<'a> VmFacade<'a> {
         )
     }
 
-    pub fn deliver_pending_game_lifecycle_events(&mut self) {
-        if self.os.vm_runtime.current_cartridge_app_mode == AppMode::Game {
-            let resident_game_task = self.os.foreground_stack.resident_game_task();
-            let mut retained = Vec::new();
-            let mut delivered = Vec::new();
-
-            for event in self.os.game_lifecycle_events.drain(..) {
-                if Some(event.task_id) == resident_game_task {
-                    delivered.push(event);
-                } else {
-                    retained.push(event);
-                }
-            }
-
-            self.os.game_lifecycle_events = retained;
-            self.os.vm_runtime.deliver_game_lifecycle_events(delivered);
-        }
-    }
-
     fn deliver_pending_game_lifecycle_events_to_session(&mut self, task_id: TaskId) {
         let Some(session) = self.os.vm_sessions.for_task(task_id) else {
             return;
@@ -122,16 +71,9 @@ impl<'a> VmFacade<'a> {
         }
     }
 
-    pub fn reset(&mut self, vm: &mut VirtualMachine) {
+    pub fn reset_global_runtime_state(&mut self) {
-        self.os.vm_runtime.reset(vm);
+        self.os.clear_cartridge_service_state();
-    }
+        self.os.vm_runtime.clear_cartridge_state();
-
-    pub fn debug_step_instruction(
-        &mut self,
-        vm: &mut VirtualMachine,
-        platform: &mut dyn RuntimePlatform,
-    ) -> Option<CrashReport> {
-        self.os.vm_runtime.debug_step_instruction(&mut self.os.log_service, vm, platform)
     }
 
     pub fn debug_step_active_session(

crates/console/prometeu-system/src/programs/prometeu_hub/prometeu_hub.rs

@@ -6,7 +6,6 @@ use prometeu_hal::{
     FrameId, GfxUiCommand, InputPlatform, InputSignals, RenderSubmission, RuntimePlatform,
     ShellUiFramePacket,
 };
-use prometeu_vm::VirtualMachine;
 use std::path::PathBuf;
 
 const SHELL_A_BUTTON: Rect = Rect { x: 112, y: 172, w: 112, h: 32 };
@@ -175,24 +174,17 @@ impl PrometeuHub {
     pub fn update_shell_profile(
         &mut self,
         os: &mut SystemOS,
-        vm: &mut VirtualMachine,
-        signals: &InputSignals,
         platform: &mut dyn RuntimePlatform,
     ) -> SystemProfileUpdate {
-        let mut crash = None;
         let mut action = self.gui_update(os, platform);
 
-        if os.windows().focused_window().is_some() {
+        if os.windows().focused_window().is_some() && platform.input().pad().start().down {
-            if platform.input().pad().start().down {
+            action = Some(SystemProfileAction::CloseShell);
-                action = Some(SystemProfileAction::CloseShell);
-            } else if action != Some(SystemProfileAction::CloseShell) {
-                crash = os.vm().tick(vm, signals, platform);
-            }
         }
 
         self.render(os, platform);
 
-        SystemProfileUpdate { crash, action }
+        SystemProfileUpdate { crash: None, action }
     }
 
     pub fn update_vm_shell_profile(

crates/console/prometeu-system/src/services/vm_session.rs

@@ -138,6 +138,10 @@ impl VmSessionRegistry {
     pub fn is_empty(&self) -> bool {
         self.sessions.is_empty()
     }
+
+    pub fn clear(&mut self) {
+        self.sessions.clear();
+    }
 }
 
 fn app_mode_for_task_and_process(

crates/host/prometeu-host-desktop-winit/src/debugger.rs

@@ -432,12 +432,11 @@ mod tests {
     }
 
     #[test]
-    fn breakpoint_commands_mutate_active_vm_session_not_legacy_vm() {
+    fn breakpoint_commands_mutate_active_vm_session() {
         let mut debugger = HostDebugger::new();
         let mut firmware = Firmware::new(None);
         let mut platform = TestPlatform::new();
         let task_id = firmware.os.sessions().create_vm_game_task(42, "Sector Crawl");
-        firmware.vm.insert_breakpoint(9);
 
         debugger.handle_command(
             DebugCommand::SetBreakpoint { pc: 123 },
@@ -445,7 +444,6 @@ mod tests {
             &mut platform,
         );
 
-        assert_eq!(firmware.vm.breakpoints_list(), vec![9]);
         assert_eq!(
             firmware
                 .os
@@ -463,7 +461,6 @@ mod tests {
             &mut platform,
         );
 
-        assert_eq!(firmware.vm.breakpoints_list(), vec![9]);
         assert!(
             firmware
                 .os

discussion/index.ndjson

@@ -2,7 +2,7 @@
 {"type":"discussion","id":"DSC-0043","status":"open","ticket":"system-os-cartridge-switch-orchestrator","title":"SystemOS Cartridge Switch Orchestrator","created_at":"2026-07-03","updated_at":"2026-07-03","tags":["runtime","os","lifecycle","game","cartridge","architecture"],"agendas":[{"id":"AGD-0044","file":"AGD-0044-systemos-cartridge-switch-orchestrator.md","status":"open","created_at":"2026-07-03","updated_at":"2026-07-03"}],"decisions":[],"plans":[],"lessons":[]}
 {"type":"discussion","id":"DSC-0039","status":"abandoned","ticket":"render-pipeline-family-and-future-3d","title":"Render Pipeline Family and Future 3D","created_at":"2026-06-04","updated_at":"2026-06-04","tags":["gfx","renderer","runtime","architecture","pipeline"],"agendas":[{"id":"AGD-0039","file":"AGD-0039-render-pipeline-family-and-future-3d.md","status":"abandoned","created_at":"2026-06-04","updated_at":"2026-06-04","_override_reason":"User explicitly chose to close this agenda without a new decision because DSC-0038 already established enough architecture for future extension, and 3D is intentionally deferred."}],"decisions":[],"plans":[],"lessons":[],"_override_reason":"User explicitly chose to close this agenda without a new decision because DSC-0038 already established enough architecture for future extension, and 3D is intentionally deferred."}
 {"type":"discussion","id":"DSC-0040","status":"done","ticket":"vm-render-parallel-execution-boundary","title":"VM and Render Parallel Execution Boundary","created_at":"2026-06-04","updated_at":"2026-06-06","tags":["runtime","renderer","vm","concurrency","architecture","perf"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0048","file":"discussion/lessons/DSC-0040-vm-render-parallel-execution-boundary/LSN-0048-render-workers-need-a-closed-packet-contract.md","status":"done","created_at":"2026-06-06","updated_at":"2026-06-06"}]}
-{"type":"discussion","id":"DSC-0041","status":"in_progress","ticket":"foreground-stack-game-pause-shell-vm-backed","title":"Foreground Stack, Game Pause, and VM-Backed Shell Coexistence","created_at":"2026-06-05","updated_at":"2026-07-05","tags":["runtime","os","lifecycle","shell","game","vm","foreground","architecture"],"agendas":[{"id":"AGD-0041","file":"AGD-0041-foreground-stack-game-pause-shell-vm-backed.md","status":"accepted","created_at":"2026-06-05","updated_at":"2026-07-03"},{"id":"AGD-0046","file":"AGD-0046-vm-context-ownership-for-resident-game-and-vm-backed-shell.md","status":"accepted","created_at":"2026-07-04","updated_at":"2026-07-04"}],"decisions":[{"id":"DEC-0037","file":"DEC-0037-foreground-stack-and-game-pause-contract.md","status":"accepted","created_at":"2026-07-03","updated_at":"2026-07-03","ref_agenda":"AGD-0041"},{"id":"DEC-0038","file":"DEC-0038-vm-session-ownership-for-vm-backed-processes.md","status":"accepted","created_at":"2026-07-04","updated_at":"2026-07-04","ref_agenda":"AGD-0046"}],"plans":[{"id":"PLN-0136","file":"PLN-0136-route-desktop-home-key-outside-guest-input.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0137","file":"PLN-0137-implement-systemos-foreground-stack-state.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0138","file":"PLN-0138-specify-foreground-pause-and-home-contract.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0139","file":"PLN-0139-validate-game-home-shell-game-end-to-end.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0140","file":"PLN-0140-deliver-game-pause-resume-and-suspension.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0141","file":"PLN-0141-integrate-render-audio-and-input-pause-boundaries.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0142","file":"PLN-0142-deliver-game-lifecycle-events-to-vm-runtime.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0143","file":"PLN-0143-guarantee-cooperative-pause-budget-tick-before-suspension.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0144","file":"PLN-0144-suspend-resident-game-when-shell-takes-foreground.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0145","file":"PLN-0145-centralize-resident-game-resume-transition.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0146","file":"PLN-0146-consolidate-lifecycle-process-lookup-helpers.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0147","file":"PLN-0147-move-native-shell-profile-update-into-hub.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0148","file":"PLN-0148-introduce-vm-session-registry-and-identity.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0149","file":"PLN-0149-move-vm-runtime-state-into-vm-sessions.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0150","file":"PLN-0150-route-cartridge-loading-through-vm-sessions.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0151","file":"PLN-0151-schedule-foreground-vm-session-ticks.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0152","file":"PLN-0152-validate-game-and-vm-shell-session-coexistence.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0153","file":"PLN-0153-specify-vm-session-ownership-and-background-ready-scheduling.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0154","file":"PLN-0154-route-debugger-operations-through-vm-sessions.md","status":"done","created_at":"2026-07-05","updated_at":"2026-07-05","ref_decisions":["DEC-0038"]},{"id":"PLN-0155","file":"PLN-0155-retire-legacy-firmware-vm-runtime-bridge.md","status":"open","created_at":"2026-07-05","updated_at":"2026-07-05","ref_decisions":["DEC-0038"]},{"id":"PLN-0156","file":"PLN-0156-harden-vm-session-lifecycle-error-boundaries.md","status":"open","created_at":"2026-07-05","updated_at":"2026-07-05","ref_decisions":["DEC-0038"]}],"lessons":[]}
+{"type":"discussion","id":"DSC-0041","status":"in_progress","ticket":"foreground-stack-game-pause-shell-vm-backed","title":"Foreground Stack, Game Pause, and VM-Backed Shell Coexistence","created_at":"2026-06-05","updated_at":"2026-07-05","tags":["runtime","os","lifecycle","shell","game","vm","foreground","architecture"],"agendas":[{"id":"AGD-0041","file":"AGD-0041-foreground-stack-game-pause-shell-vm-backed.md","status":"accepted","created_at":"2026-06-05","updated_at":"2026-07-03"},{"id":"AGD-0046","file":"AGD-0046-vm-context-ownership-for-resident-game-and-vm-backed-shell.md","status":"accepted","created_at":"2026-07-04","updated_at":"2026-07-04"}],"decisions":[{"id":"DEC-0037","file":"DEC-0037-foreground-stack-and-game-pause-contract.md","status":"accepted","created_at":"2026-07-03","updated_at":"2026-07-03","ref_agenda":"AGD-0041"},{"id":"DEC-0038","file":"DEC-0038-vm-session-ownership-for-vm-backed-processes.md","status":"accepted","created_at":"2026-07-04","updated_at":"2026-07-04","ref_agenda":"AGD-0046"}],"plans":[{"id":"PLN-0136","file":"PLN-0136-route-desktop-home-key-outside-guest-input.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0137","file":"PLN-0137-implement-systemos-foreground-stack-state.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0138","file":"PLN-0138-specify-foreground-pause-and-home-contract.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0139","file":"PLN-0139-validate-game-home-shell-game-end-to-end.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0140","file":"PLN-0140-deliver-game-pause-resume-and-suspension.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0141","file":"PLN-0141-integrate-render-audio-and-input-pause-boundaries.md","status":"done","created_at":"2026-07-03","updated_at":"2026-07-03","ref_decisions":["DEC-0037"]},{"id":"PLN-0142","file":"PLN-0142-deliver-game-lifecycle-events-to-vm-runtime.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0143","file":"PLN-0143-guarantee-cooperative-pause-budget-tick-before-suspension.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0144","file":"PLN-0144-suspend-resident-game-when-shell-takes-foreground.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0145","file":"PLN-0145-centralize-resident-game-resume-transition.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0146","file":"PLN-0146-consolidate-lifecycle-process-lookup-helpers.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0147","file":"PLN-0147-move-native-shell-profile-update-into-hub.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0037"]},{"id":"PLN-0148","file":"PLN-0148-introduce-vm-session-registry-and-identity.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0149","file":"PLN-0149-move-vm-runtime-state-into-vm-sessions.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0150","file":"PLN-0150-route-cartridge-loading-through-vm-sessions.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0151","file":"PLN-0151-schedule-foreground-vm-session-ticks.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0152","file":"PLN-0152-validate-game-and-vm-shell-session-coexistence.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0153","file":"PLN-0153-specify-vm-session-ownership-and-background-ready-scheduling.md","status":"done","created_at":"2026-07-04","updated_at":"2026-07-04","ref_decisions":["DEC-0038"]},{"id":"PLN-0154","file":"PLN-0154-route-debugger-operations-through-vm-sessions.md","status":"done","created_at":"2026-07-05","updated_at":"2026-07-05","ref_decisions":["DEC-0038"]},{"id":"PLN-0155","file":"PLN-0155-retire-legacy-firmware-vm-runtime-bridge.md","status":"done","created_at":"2026-07-05","updated_at":"2026-07-05","ref_decisions":["DEC-0038"]},{"id":"PLN-0156","file":"PLN-0156-harden-vm-session-lifecycle-error-boundaries.md","status":"open","created_at":"2026-07-05","updated_at":"2026-07-05","ref_decisions":["DEC-0038"]}],"lessons":[]}
 {"type":"discussion","id":"DSC-0042","status":"done","ticket":"real-render-worker-establishment","title":"Real Render Worker Establishment","created_at":"2026-06-06","updated_at":"2026-06-20","tags":["runtime","renderer","worker","concurrency","host","hal","architecture"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0049","file":"discussion/lessons/DSC-0042-real-render-worker-establishment/LSN-0049-render-worker-publication-boundary.md","status":"done","created_at":"2026-06-20","updated_at":"2026-06-20"}]}
 {"type":"discussion","id":"DSC-0038","status":"done","ticket":"render-frame-packet-boundary","title":"Logical Render Pipelines and Command Packets","created_at":"2026-05-25","updated_at":"2026-06-04","tags":["gfx","renderer","runtime","frame-composer","architecture","ui","pipeline"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0047","file":"discussion/lessons/DSC-0038-render-frame-packet-boundary/LSN-0047-typed-render-submissions-preserve-domain-boundaries.md","status":"done","created_at":"2026-06-04","updated_at":"2026-06-04"}]}
 {"type":"discussion","id":"DSC-0035","status":"done","ticket":"task-owned-shell-windows","title":"Agenda - Task-Owned Shell Windows","created_at":"2026-05-15","updated_at":"2026-05-15","tags":["runtime","os","task","window-manager","shell","lifecycle"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0044","file":"discussion/lessons/DSC-0035-task-owned-shell-windows/LSN-0044-task-window-liveness-belongs-to-the-task.md","status":"done","created_at":"2026-05-15","updated_at":"2026-05-15"}]}

discussion/workflow/plans/PLN-0155-retire-legacy-firmware-vm-runtime-bridge.md

@@ -2,7 +2,7 @@
 id: PLN-0155
 ticket: foreground-stack-game-pause-shell-vm-backed
 title: Retire Legacy Firmware VM Runtime Bridge
-status: open
+status: done
 created: 2026-07-05
 ref_decisions: [DEC-0038]
 tags: [runtime, os, lifecycle, shell, game, vm, foreground, architecture]