implements PLN-0127 async io lane boundaries

crates/console/prometeu-system/src/lib.rs

@@ -10,9 +10,10 @@ pub use prometeu_hal::{RenderWorkerBackend, RenderWorkerFrameSink};
 pub use services::async_work::{
     AsyncWorkActiveJob, AsyncWorkCancelToken, AsyncWorkJobContext, AsyncWorkJobId,
     AsyncWorkJobKind, AsyncWorkJobOutcome, AsyncWorkLane, AsyncWorkLaneConfig,
-    AsyncWorkLaneController, AsyncWorkLaneError, AsyncWorkLaneTelemetry,
+    AsyncWorkLaneController, AsyncWorkLaneError, AsyncWorkLaneTelemetry, AsyncWorkPriority,
 };
 pub use services::fs;
+pub use services::memcard::MemcardAsyncLaneOperation;
 pub use services::process;
 pub use services::task;
 pub use services::vm_runtime::{

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

@@ -29,6 +29,36 @@ pub enum AsyncWorkJobKind {
     Test,
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum AsyncWorkPriority {
+    MemcardCommitWrite,
+    FsWriteConfig,
+    AssetLoad,
+    NonCriticalReadList,
+}
+
+impl AsyncWorkPriority {
+    const fn rank(self) -> u8 {
+        match self {
+            Self::MemcardCommitWrite => 0,
+            Self::FsWriteConfig => 1,
+            Self::AssetLoad => 2,
+            Self::NonCriticalReadList => 3,
+        }
+    }
+}
+
+impl AsyncWorkJobKind {
+    pub const fn default_priority(self) -> AsyncWorkPriority {
+        match self {
+            Self::Memcard => AsyncWorkPriority::MemcardCommitWrite,
+            Self::Fs => AsyncWorkPriority::FsWriteConfig,
+            Self::Asset => AsyncWorkPriority::AssetLoad,
+            Self::Test => AsyncWorkPriority::NonCriticalReadList,
+        }
+    }
+}
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum AsyncWorkJobOutcome {
     Completed,
@@ -59,6 +89,7 @@ impl Default for AsyncWorkLaneConfig {
 pub struct AsyncWorkActiveJob {
     pub id: AsyncWorkJobId,
     pub kind: AsyncWorkJobKind,
+    pub priority: AsyncWorkPriority,
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
@@ -131,6 +162,7 @@ impl AsyncWorkCancelToken {
 pub struct AsyncWorkJobContext {
     pub job_id: AsyncWorkJobId,
     pub kind: AsyncWorkJobKind,
+    pub priority: AsyncWorkPriority,
     cancel_token: AsyncWorkCancelToken,
 }
 
@@ -145,6 +177,7 @@ type AsyncWorkFn = Box<dyn FnOnce(AsyncWorkJobContext) -> AsyncWorkJobOutcome +
 struct PendingAsyncWorkJob {
     id: AsyncWorkJobId,
     kind: AsyncWorkJobKind,
+    priority: AsyncWorkPriority,
     cancel_token: AsyncWorkCancelToken,
     work: AsyncWorkFn,
 }
@@ -152,6 +185,7 @@ struct PendingAsyncWorkJob {
 struct RunningAsyncWorkJob {
     id: AsyncWorkJobId,
     kind: AsyncWorkJobKind,
+    priority: AsyncWorkPriority,
     cancel_token: AsyncWorkCancelToken,
     work: AsyncWorkFn,
 }
@@ -177,6 +211,15 @@ impl AsyncWorkLane {
         &self,
         kind: AsyncWorkJobKind,
         work: impl FnOnce(AsyncWorkJobContext) -> AsyncWorkJobOutcome + Send + 'static,
+    ) -> Result<AsyncWorkJobId, AsyncWorkLaneError> {
+        self.submit_with_priority(kind, kind.default_priority(), work)
+    }
+
+    pub fn submit_with_priority(
+        &self,
+        kind: AsyncWorkJobKind,
+        priority: AsyncWorkPriority,
+        work: impl FnOnce(AsyncWorkJobContext) -> AsyncWorkJobOutcome + Send + 'static,
     ) -> Result<AsyncWorkJobId, AsyncWorkLaneError> {
         let mut state = self.state.lock().map_err(|_| AsyncWorkLaneError::InternalFailure)?;
         if state.shutdown_requested {
@@ -186,18 +229,52 @@ impl AsyncWorkLane {
         state.next_job_id += 1;
         let id = AsyncWorkJobId::new(state.next_job_id);
         let cancel_token = AsyncWorkCancelToken::new();
-        state.pending.push_back(PendingAsyncWorkJob {
-            id,
-            kind,
-            cancel_token,
-            work: Box::new(work),
-        });
+        let job = PendingAsyncWorkJob { id, kind, priority, cancel_token, work: Box::new(work) };
+        let insert_at = state
+            .pending
+            .iter()
+            .position(|pending| priority.rank() < pending.priority.rank())
+            .unwrap_or(state.pending.len());
+        state.pending.insert(insert_at, job);
         let pending_depth = state.pending.len();
         state.telemetry.record_submitted(id, pending_depth);
         self.ready.notify_one();
         Ok(id)
     }
 
+    pub fn submit_memcard_commit_write(
+        &self,
+        work: impl FnOnce(AsyncWorkJobContext) -> AsyncWorkJobOutcome + Send + 'static,
+    ) -> Result<AsyncWorkJobId, AsyncWorkLaneError> {
+        self.submit_with_priority(
+            AsyncWorkJobKind::Memcard,
+            AsyncWorkPriority::MemcardCommitWrite,
+            work,
+        )
+    }
+
+    pub fn submit_fs_write_config(
+        &self,
+        work: impl FnOnce(AsyncWorkJobContext) -> AsyncWorkJobOutcome + Send + 'static,
+    ) -> Result<AsyncWorkJobId, AsyncWorkLaneError> {
+        self.submit_with_priority(AsyncWorkJobKind::Fs, AsyncWorkPriority::FsWriteConfig, work)
+    }
+
+    pub fn submit_asset_load(
+        &self,
+        work: impl FnOnce(AsyncWorkJobContext) -> AsyncWorkJobOutcome + Send + 'static,
+    ) -> Result<AsyncWorkJobId, AsyncWorkLaneError> {
+        self.submit_with_priority(AsyncWorkJobKind::Asset, AsyncWorkPriority::AssetLoad, work)
+    }
+
+    pub fn submit_non_critical_read_list(
+        &self,
+        kind: AsyncWorkJobKind,
+        work: impl FnOnce(AsyncWorkJobContext) -> AsyncWorkJobOutcome + Send + 'static,
+    ) -> Result<AsyncWorkJobId, AsyncWorkLaneError> {
+        self.submit_with_priority(kind, AsyncWorkPriority::NonCriticalReadList, work)
+    }
+
     pub fn request_cancel(&self, job_id: AsyncWorkJobId) -> bool {
         let state = self.state.lock().unwrap();
         if state.active.is_some_and(|active| active.id == job_id) {
@@ -253,7 +330,11 @@ impl AsyncWorkLane {
             }
 
             if let Some(pending) = state.pending.pop_front() {
-                let active = AsyncWorkActiveJob { id: pending.id, kind: pending.kind };
+                let active = AsyncWorkActiveJob {
+                    id: pending.id,
+                    kind: pending.kind,
+                    priority: pending.priority,
+                };
                 state.active = Some(active);
                 state.active_cancel_token = Some(pending.cancel_token.clone());
                 let pending_depth = state.pending.len();
@@ -261,6 +342,7 @@ impl AsyncWorkLane {
                 return Some(RunningAsyncWorkJob {
                     id: pending.id,
                     kind: pending.kind,
+                    priority: pending.priority,
                     cancel_token: pending.cancel_token,
                     work: pending.work,
                 });
@@ -332,8 +414,12 @@ impl Drop for AsyncWorkLaneController {
 
 fn run_async_work_loop(lane: Arc<AsyncWorkLane>) {
     while let Some(job) = lane.wait_take() {
-        let context =
-            AsyncWorkJobContext { job_id: job.id, kind: job.kind, cancel_token: job.cancel_token };
+        let context = AsyncWorkJobContext {
+            job_id: job.id,
+            kind: job.kind,
+            priority: job.priority,
+            cancel_token: job.cancel_token,
+        };
         let result = catch_unwind(AssertUnwindSafe(|| (job.work)(context)))
             .unwrap_or(AsyncWorkJobOutcome::Failed);
         lane.record_finished(job.id, result);
@@ -379,6 +465,60 @@ mod tests {
         assert_eq!(telemetry.completed_jobs, 2);
     }
 
+    #[test]
+    fn async_work_lane_runs_higher_priority_io_before_assets() {
+        let lane = Arc::new(AsyncWorkLane::default());
+        let (tx, rx) = mpsc::channel();
+
+        lane.submit_asset_load({
+            let tx = tx.clone();
+            move |ctx| {
+                tx.send((ctx.kind, ctx.priority)).unwrap();
+                AsyncWorkJobOutcome::Completed
+            }
+        })
+        .unwrap();
+        lane.submit_non_critical_read_list(AsyncWorkJobKind::Fs, {
+            let tx = tx.clone();
+            move |ctx| {
+                tx.send((ctx.kind, ctx.priority)).unwrap();
+                AsyncWorkJobOutcome::Completed
+            }
+        })
+        .unwrap();
+        lane.submit_memcard_commit_write({
+            let tx = tx.clone();
+            move |ctx| {
+                tx.send((ctx.kind, ctx.priority)).unwrap();
+                AsyncWorkJobOutcome::Completed
+            }
+        })
+        .unwrap();
+        lane.submit_fs_write_config({
+            let tx = tx.clone();
+            move |ctx| {
+                tx.send((ctx.kind, ctx.priority)).unwrap();
+                AsyncWorkJobOutcome::Completed
+            }
+        })
+        .unwrap();
+
+        let mut controller =
+            AsyncWorkLaneController::start(AsyncWorkLaneConfig::default(), Arc::clone(&lane));
+
+        assert_eq!(
+            rx.recv().unwrap(),
+            (AsyncWorkJobKind::Memcard, AsyncWorkPriority::MemcardCommitWrite)
+        );
+        assert_eq!(rx.recv().unwrap(), (AsyncWorkJobKind::Fs, AsyncWorkPriority::FsWriteConfig));
+        assert_eq!(rx.recv().unwrap(), (AsyncWorkJobKind::Asset, AsyncWorkPriority::AssetLoad));
+        assert_eq!(
+            rx.recv().unwrap(),
+            (AsyncWorkJobKind::Fs, AsyncWorkPriority::NonCriticalReadList)
+        );
+        controller.stop().unwrap();
+    }
+
     #[test]
     fn async_work_lane_has_one_active_job() {
         let lane = Arc::new(AsyncWorkLane::default());

crates/console/prometeu-system/src/services/fs/mod.rs

@@ -8,4 +8,4 @@ pub use fs_backend::FsBackend;
 pub use fs_entry::FsEntry;
 pub use fs_error::FsError;
 pub use fs_state::FsState;
-pub use virtual_fs::VirtualFS;
+pub use virtual_fs::{FsAsyncLaneOperation, VirtualFS};

crates/console/prometeu-system/src/services/fs/virtual_fs.rs

@@ -1,4 +1,5 @@
 use crate::fs::{FsBackend, FsEntry, FsError};
+use crate::services::async_work::{AsyncWorkJobKind, AsyncWorkPriority};
 
 /// Virtual Filesystem (VFS) interface for Prometeu.
 ///
@@ -13,6 +14,29 @@ pub struct VirtualFS {
     backend: Option<Box<dyn FsBackend>>,
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum FsAsyncLaneOperation {
+    Write,
+    Delete,
+    Config,
+    Read,
+    ListDir,
+    Exists,
+}
+
+impl FsAsyncLaneOperation {
+    pub const fn job_kind(self) -> AsyncWorkJobKind {
+        AsyncWorkJobKind::Fs
+    }
+
+    pub const fn priority(self) -> AsyncWorkPriority {
+        match self {
+            Self::Write | Self::Delete | Self::Config => AsyncWorkPriority::FsWriteConfig,
+            Self::Read | Self::ListDir | Self::Exists => AsyncWorkPriority::NonCriticalReadList,
+        }
+    }
+}
+
 impl Default for VirtualFS {
     fn default() -> Self {
         Self::new()
@@ -242,4 +266,18 @@ mod tests {
         assert!(matches!(vfs.delete("/"), Err(FsError::PermissionDenied)));
         assert_eq!(calls.delete.load(Ordering::Relaxed), 0);
     }
+
+    #[test]
+    fn fs_async_lane_operations_classify_priority_without_public_api_changes() {
+        assert_eq!(FsAsyncLaneOperation::Write.job_kind(), AsyncWorkJobKind::Fs);
+        assert_eq!(FsAsyncLaneOperation::Write.priority(), AsyncWorkPriority::FsWriteConfig);
+        assert_eq!(FsAsyncLaneOperation::Delete.priority(), AsyncWorkPriority::FsWriteConfig);
+        assert_eq!(FsAsyncLaneOperation::Config.priority(), AsyncWorkPriority::FsWriteConfig);
+        assert_eq!(FsAsyncLaneOperation::Read.priority(), AsyncWorkPriority::NonCriticalReadList);
+        assert_eq!(
+            FsAsyncLaneOperation::ListDir.priority(),
+            AsyncWorkPriority::NonCriticalReadList
+        );
+        assert_eq!(FsAsyncLaneOperation::Exists.priority(), AsyncWorkPriority::NonCriticalReadList);
+    }
 }

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

@@ -1,4 +1,5 @@
 use crate::fs::{FsError, VirtualFS};
+use crate::services::async_work::{AsyncWorkJobKind, AsyncWorkPriority};
 use std::collections::HashMap;
 
 pub const MEMCARD_SLOT_COUNT: usize = 32;
@@ -50,6 +51,30 @@ pub struct MemcardWriteResult {
     pub bytes_written: u32,
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum MemcardAsyncLaneOperation {
+    SlotWrite,
+    SlotCommit,
+    SlotClear,
+    SlotRead,
+    SlotStat,
+}
+
+impl MemcardAsyncLaneOperation {
+    pub const fn job_kind(self) -> AsyncWorkJobKind {
+        AsyncWorkJobKind::Memcard
+    }
+
+    pub const fn priority(self) -> AsyncWorkPriority {
+        match self {
+            Self::SlotWrite | Self::SlotCommit | Self::SlotClear => {
+                AsyncWorkPriority::MemcardCommitWrite
+            }
+            Self::SlotRead | Self::SlotStat => AsyncWorkPriority::NonCriticalReadList,
+        }
+    }
+}
+
 #[derive(Debug, Clone)]
 struct SlotImage {
     payload: Vec<u8>,
@@ -428,4 +453,29 @@ mod tests {
         let stat = mem.slot_stat(&fs, 7, 2);
         assert_eq!(stat.state, MemcardSlotState::Corrupt);
     }
+
+    #[test]
+    fn memcard_async_lane_operations_classify_priority_without_changing_public_api() {
+        assert_eq!(MemcardAsyncLaneOperation::SlotWrite.job_kind(), AsyncWorkJobKind::Memcard);
+        assert_eq!(
+            MemcardAsyncLaneOperation::SlotWrite.priority(),
+            AsyncWorkPriority::MemcardCommitWrite
+        );
+        assert_eq!(
+            MemcardAsyncLaneOperation::SlotCommit.priority(),
+            AsyncWorkPriority::MemcardCommitWrite
+        );
+        assert_eq!(
+            MemcardAsyncLaneOperation::SlotClear.priority(),
+            AsyncWorkPriority::MemcardCommitWrite
+        );
+        assert_eq!(
+            MemcardAsyncLaneOperation::SlotRead.priority(),
+            AsyncWorkPriority::NonCriticalReadList
+        );
+        assert_eq!(
+            MemcardAsyncLaneOperation::SlotStat.priority(),
+            AsyncWorkPriority::NonCriticalReadList
+        );
+    }
 }

discussion/index.ndjson

@@ -18,7 +18,7 @@
 {"type":"discussion","id":"DSC-0006","status":"open","ticket":"vm-owned-random-service","title":"Agenda - VM-Owned Random Service","created_at":"2026-03-27","updated_at":"2026-03-27","tags":[],"agendas":[{"id":"AGD-0005","file":"AGD-0005-vm-owned-random-service.md","status":"open","created_at":"2026-03-27","updated_at":"2026-03-27"}],"decisions":[],"plans":[],"lessons":[]}
 {"type":"discussion","id":"DSC-0007","status":"open","ticket":"app-home-filesystem-surface-and-semantics","title":"Agenda - App Home Filesystem Surface and Semantics","created_at":"2026-03-27","updated_at":"2026-03-27","tags":[],"agendas":[{"id":"AGD-0006","file":"AGD-0006-app-home-filesystem-surface-and-semantics.md","status":"open","created_at":"2026-03-27","updated_at":"2026-03-27"}],"decisions":[],"plans":[],"lessons":[]}
 {"type":"discussion","id":"DSC-0008","status":"done","ticket":"perf-runtime-telemetry-hot-path","title":"Agenda - [PERF] Runtime Telemetry Hot Path","created_at":"2026-03-27","updated_at":"2026-06-04","tags":[],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0026","file":"discussion/lessons/DSC-0008-perf-runtime-telemetry-hot-path/LSN-0026-push-based-telemetry-model.md","status":"done","created_at":"2026-04-10","updated_at":"2026-04-10"}]}
-{"type":"discussion","id":"DSC-0009","status":"in_progress","ticket":"perf-async-background-work-lanes-for-assets-and-fs","title":"Agenda - [PERF] Async Background Work Lanes for Assets and FS","created_at":"2026-03-27","updated_at":"2026-06-28","tags":["perf","asset","fs","async","scheduler","runtime"],"agendas":[{"id":"AGD-0008","file":"AGD-0008-perf-async-background-work-lanes-for-assets-and-fs.md","status":"accepted","created_at":"2026-03-27","updated_at":"2026-06-28"}],"decisions":[{"id":"DEC-0034","file":"DEC-0034-async-work-lane-and-asset-backlog-contract.md","status":"accepted","created_at":"2026-06-28","updated_at":"2026-06-28","ref_agenda":"AGD-0008"}],"plans":[{"id":"PLN-0123","file":"PLN-0123-async-work-lane-specification-propagation.md","status":"done","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]},{"id":"PLN-0124","file":"PLN-0124-async-work-lane-runtime-infrastructure.md","status":"done","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]},{"id":"PLN-0125","file":"PLN-0125-asset-backlog-and-stable-slot-handles.md","status":"done","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]},{"id":"PLN-0126","file":"PLN-0126-asset-backlog-public-api-and-status-surface.md","status":"done","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]},{"id":"PLN-0127","file":"PLN-0127-async-lane-memcard-and-fs-integration-boundaries.md","status":"open","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]},{"id":"PLN-0128","file":"PLN-0128-async-asset-pipeline-contract-tests-and-telemetry.md","status":"open","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]}],"lessons":[]}
+{"type":"discussion","id":"DSC-0009","status":"in_progress","ticket":"perf-async-background-work-lanes-for-assets-and-fs","title":"Agenda - [PERF] Async Background Work Lanes for Assets and FS","created_at":"2026-03-27","updated_at":"2026-06-28","tags":["perf","asset","fs","async","scheduler","runtime"],"agendas":[{"id":"AGD-0008","file":"AGD-0008-perf-async-background-work-lanes-for-assets-and-fs.md","status":"accepted","created_at":"2026-03-27","updated_at":"2026-06-28"}],"decisions":[{"id":"DEC-0034","file":"DEC-0034-async-work-lane-and-asset-backlog-contract.md","status":"accepted","created_at":"2026-06-28","updated_at":"2026-06-28","ref_agenda":"AGD-0008"}],"plans":[{"id":"PLN-0123","file":"PLN-0123-async-work-lane-specification-propagation.md","status":"done","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]},{"id":"PLN-0124","file":"PLN-0124-async-work-lane-runtime-infrastructure.md","status":"done","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]},{"id":"PLN-0125","file":"PLN-0125-asset-backlog-and-stable-slot-handles.md","status":"done","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]},{"id":"PLN-0126","file":"PLN-0126-asset-backlog-public-api-and-status-surface.md","status":"done","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]},{"id":"PLN-0127","file":"PLN-0127-async-lane-memcard-and-fs-integration-boundaries.md","status":"done","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]},{"id":"PLN-0128","file":"PLN-0128-async-asset-pipeline-contract-tests-and-telemetry.md","status":"open","created_at":"2026-06-28","updated_at":"2026-06-28","ref_decisions":["DEC-0034"]}],"lessons":[]}
 {"type":"discussion","id":"DSC-0010","status":"done","ticket":"perf-host-desktop-frame-pacing-and-presentation","title":"Agenda - [PERF] Host Desktop Frame Pacing and Presentation","created_at":"2026-03-27","updated_at":"2026-04-20","tags":[],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0036","file":"discussion/lessons/DSC-0010-perf-host-desktop-frame-pacing-and-presentation/LSN-0036-frame-publication-and-host-invalidation-must-be-separate.md","status":"done","created_at":"2026-04-20","updated_at":"2026-04-20"}]}
 {"type":"discussion","id":"DSC-0011","status":"abandoned","ticket":"perf-gfx-render-pipeline-and-dirty-regions","title":"Agenda - [PERF] GFX Render Pipeline and Dirty Regions","created_at":"2026-03-27","updated_at":"2026-06-28","tags":[],"agendas":[{"id":"AGD-0010","file":"AGD-0010-perf-gfx-render-pipeline-and-dirty-regions.md","status":"abandoned","created_at":"2026-03-27","updated_at":"2026-06-28","_override_reason":"User explicitly chose to remove this agenda because it no longer applies to the current render scenario; future optimizations can be discussed when needed."}],"decisions":[],"plans":[],"lessons":[],"_override_reason":"User explicitly chose to abandon this discussion because it no longer applies to the current render scenario; future optimizations can be discussed when needed."}
 {"type":"discussion","id":"DSC-0012","status":"done","ticket":"perf-runtime-introspection-syscalls","title":"Agenda - [PERF] Runtime Introspection Syscalls","created_at":"2026-03-27","updated_at":"2026-04-19","tags":["perf","runtime","syscall","telemetry","debug","asset"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0034","file":"discussion/lessons/DSC-0012-perf-runtime-introspection-syscalls/LSN-0034-host-owned-debug-boundaries.md","status":"done","created_at":"2026-04-19","updated_at":"2026-04-19"}]}

discussion/workflow/agendas/AGD-0006-app-home-filesystem-surface-and-semantics.md

@@ -26,6 +26,16 @@ Sem um contrato claro de `home` por app, a API tende a crescer com semantica inc
    agenda deve decidir a API publica de FS considerando essa lane, mas a
    existencia da lane ja esta fechada por `DEC-0034`.
 
+## Fronteira com a Async IO Lane
+
+`DEC-0034` fecha a existencia de uma lane serial para trabalho async de IO. FS
+pode consumir essa lane internamente para escrita, configuracao, leitura ou
+listagem, conforme prioridade operacional definida pelo runtime.
+
+Esta agenda continua dona da decisao sobre API publica de FS para `app home`.
+Portanto, a existencia da lane nao implica criar agora request handles, polling
+publico ou novas syscalls de FS. Esses shapes permanecem em aberto aqui.
+
 ## Alvo da Discussao
 
 Fechar a superficie e semantica funcional de `fs` para perfil `app`, com sandbox por `app_id` e transporte de bytes via decisao `003`.

discussion/workflow/plans/PLN-0127-async-lane-memcard-and-fs-integration-boundaries.md

@@ -2,7 +2,7 @@
 id: PLN-0127
 ticket: perf-async-background-work-lanes-for-assets-and-fs
 title: Async Lane Memcard and FS Integration Boundaries
-status: open
+status: done
 created: 2026-06-28
 completed:
 ref_decisions: [DEC-0034]