feat(desktop): add foreground publish admission scheduler

Publish is now treated as the runtime foreground channel and AI
monitoring as background. A new in-memory publish-scheduler owns queue
selection, per-platform active locks, and 3-6s post-completion platform
cooldowns.

The runtime controller tracks lease-in-flight per kind so a monitor
lease no longer blocks a publish lease, derives total concurrency from
hardware class, current process health, and an optional
GEO_DESKTOP_MAX_TOTAL_CONCURRENCY override, and reserves a publish slot
when budgeting monitor capacity. Monitor admission returns zero whenever
publish has backlog or an in-flight lease, so a cooldown-blocked publish
queue still prevents monitor from consuming the foreground reserve.
Runtime diagnostics expose publishScheduler alongside monitorScheduler.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/desktop-client/src/main/publish-scheduler.test.ts

@@ -0,0 +1,53 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+
+import {
+  enqueuePublishTask,
+  getPublishSchedulerSnapshot,
+  initPublishScheduler,
+  notePublishTaskActivated,
+  notePublishTaskCompleted,
+  selectNextPublishTask,
+} from "./publish-scheduler";
+
+describe("publish scheduler", () => {
+  beforeEach(() => {
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date("2026-04-24T00:00:00.000Z"));
+    initPublishScheduler();
+  });
+
+  afterEach(() => {
+    vi.useRealTimers();
+    initPublishScheduler();
+  });
+
+  it("skips same-platform queued tasks while selecting an allowed platform", () => {
+    enqueuePublishTask({ taskId: "toutiao-active", platform: "toutiao", routing: "rabbitmq-primary" });
+    notePublishTaskActivated("toutiao-active", "toutiao");
+    enqueuePublishTask({ taskId: "toutiao-next", platform: "toutiao", routing: "rabbitmq-primary" });
+    enqueuePublishTask({ taskId: "zhihu-next", platform: "zhihu", routing: "rabbitmq-primary" });
+
+    const selected = selectNextPublishTask({
+      maxConcurrency: 2,
+      activeCount: 1,
+    });
+
+    expect(selected?.taskId).toBe("zhihu-next");
+    expect(getPublishSchedulerSnapshot().leasingCount).toBe(1);
+  });
+
+  it("holds same-platform tasks during completion cooldown", () => {
+    enqueuePublishTask({ taskId: "first", platform: "toutiao", routing: "rabbitmq-primary" });
+    expect(selectNextPublishTask({ maxConcurrency: 2, activeCount: 0 })?.taskId).toBe("first");
+    notePublishTaskActivated("first", "toutiao");
+    notePublishTaskCompleted("first", "toutiao");
+
+    enqueuePublishTask({ taskId: "second", platform: "toutiao", routing: "rabbitmq-primary" });
+
+    expect(selectNextPublishTask({ maxConcurrency: 2, activeCount: 0 })).toBeNull();
+
+    vi.advanceTimersByTime(6_001);
+
+    expect(selectNextPublishTask({ maxConcurrency: 2, activeCount: 0 })?.taskId).toBe("second");
+  });
+});

apps/desktop-client/src/main/publish-scheduler.ts

@@ -0,0 +1,202 @@
+export type PublishSchedulerRouting = "rabbitmq-primary" | "db-recovery";
+
+type PublishTaskState = "queued" | "leasing" | "active";
+
+export interface PublishSchedulerTaskRecord {
+  taskId: string;
+  platform: string;
+  routing: PublishSchedulerRouting;
+  state: PublishTaskState;
+  enqueuedAt: number;
+  updatedAt: number;
+  lastStartedAt: number | null;
+}
+
+export interface PublishSchedulerSelection {
+  taskId: string;
+  platform: string;
+  routing: PublishSchedulerRouting;
+}
+
+export interface PublishSchedulerSnapshot {
+  queueDepth: number;
+  queuedCount: number;
+  leasingCount: number;
+  activeCount: number;
+  cooldownCount: number;
+  tasks: PublishSchedulerTaskRecord[];
+  cooldownUntil: Record<string, number>;
+}
+
+interface PublishSchedulerSelectionOptions {
+  now?: number;
+  maxConcurrency: number;
+  activePlatforms?: ReadonlySet<string>;
+  activeCount: number;
+}
+
+const publishPlatformCooldownMinMs = 3_000;
+const publishPlatformCooldownMaxMs = 6_000;
+
+const tasks = new Map<string, PublishSchedulerTaskRecord>();
+const cooldownUntil = new Map<string, number>();
+
+export function initPublishScheduler(): void {
+  tasks.clear();
+  cooldownUntil.clear();
+}
+
+export function enqueuePublishTask(input: {
+  taskId: string;
+  platform: string;
+  routing: PublishSchedulerRouting;
+}): void {
+  const taskId = input.taskId.trim();
+  const platform = input.platform.trim();
+  if (!taskId || !platform) {
+    return;
+  }
+
+  const now = Date.now();
+  const existing = tasks.get(taskId);
+  tasks.set(taskId, {
+    taskId,
+    platform,
+    routing: input.routing,
+    state: existing?.state === "active" ? "active" : "queued",
+    enqueuedAt: existing?.enqueuedAt ?? now,
+    updatedAt: now,
+    lastStartedAt: existing?.lastStartedAt ?? null,
+  });
+}
+
+export function selectNextPublishTask(
+  options: PublishSchedulerSelectionOptions,
+): PublishSchedulerSelection | null {
+  const now = options.now ?? Date.now();
+  pruneCooldowns(now);
+
+  if (options.activeCount >= options.maxConcurrency) {
+    return null;
+  }
+
+  const activePlatforms = new Set(options.activePlatforms ?? []);
+  for (const task of tasks.values()) {
+    if (task.state === "active" || task.state === "leasing") {
+      activePlatforms.add(task.platform);
+    }
+  }
+
+  const candidates = [...tasks.values()]
+    .filter((task) => task.state === "queued")
+    .sort((left, right) => {
+      if (left.enqueuedAt !== right.enqueuedAt) {
+        return left.enqueuedAt - right.enqueuedAt;
+      }
+      return left.updatedAt - right.updatedAt;
+    });
+
+  for (const candidate of candidates) {
+    if (activePlatforms.has(candidate.platform)) {
+      continue;
+    }
+
+    const platformCooldown = cooldownUntil.get(candidate.platform) ?? 0;
+    if (platformCooldown > now) {
+      continue;
+    }
+
+    candidate.state = "leasing";
+    candidate.updatedAt = now;
+    tasks.set(candidate.taskId, candidate);
+    return {
+      taskId: candidate.taskId,
+      platform: candidate.platform,
+      routing: candidate.routing,
+    };
+  }
+
+  return null;
+}
+
+export function notePublishTaskActivated(taskId: string, platform: string): void {
+  const normalizedTaskId = taskId.trim();
+  const normalizedPlatform = platform.trim();
+  if (!normalizedTaskId || !normalizedPlatform) {
+    return;
+  }
+
+  const now = Date.now();
+  const existing = tasks.get(normalizedTaskId);
+  tasks.set(normalizedTaskId, {
+    taskId: normalizedTaskId,
+    platform: normalizedPlatform,
+    routing: existing?.routing ?? "db-recovery",
+    state: "active",
+    enqueuedAt: existing?.enqueuedAt ?? now,
+    updatedAt: now,
+    lastStartedAt: now,
+  });
+}
+
+export function notePublishTaskLeaseMiss(taskId: string): void {
+  tasks.delete(taskId);
+}
+
+export function notePublishTaskCompleted(taskId: string, platform?: string): void {
+  const existing = tasks.get(taskId);
+  const resolvedPlatform = (platform ?? existing?.platform ?? "").trim();
+  tasks.delete(taskId);
+
+  if (resolvedPlatform) {
+    cooldownUntil.set(resolvedPlatform, Date.now() + randomPublishCooldownMs());
+  }
+}
+
+export function notePublishTaskCanceled(taskId: string): void {
+  tasks.delete(taskId);
+}
+
+export function getPublishSchedulerSnapshot(): PublishSchedulerSnapshot {
+  const now = Date.now();
+  pruneCooldowns(now);
+  const sortedTasks = [...tasks.values()].sort((left, right) => {
+    if (left.state !== right.state) {
+      return stateRank(left.state) - stateRank(right.state);
+    }
+    return left.enqueuedAt - right.enqueuedAt;
+  });
+
+  return {
+    queueDepth: sortedTasks.filter((task) => task.state === "queued" || task.state === "leasing").length,
+    queuedCount: sortedTasks.filter((task) => task.state === "queued").length,
+    leasingCount: sortedTasks.filter((task) => task.state === "leasing").length,
+    activeCount: sortedTasks.filter((task) => task.state === "active").length,
+    cooldownCount: cooldownUntil.size,
+    tasks: sortedTasks.map((task) => ({ ...task })),
+    cooldownUntil: Object.fromEntries(cooldownUntil.entries()),
+  };
+}
+
+function pruneCooldowns(now: number): void {
+  for (const [platform, until] of cooldownUntil.entries()) {
+    if (until <= now) {
+      cooldownUntil.delete(platform);
+    }
+  }
+}
+
+function randomPublishCooldownMs(): number {
+  const spread = publishPlatformCooldownMaxMs - publishPlatformCooldownMinMs;
+  return publishPlatformCooldownMinMs + Math.floor(Math.random() * (spread + 1));
+}
+
+function stateRank(state: PublishTaskState): number {
+  if (state === "active") {
+    return 0;
+  }
+  if (state === "leasing") {
+    return 1;
+  }
+  return 2;
+}

apps/desktop-client/src/main/runtime-controller.ts

@@ -1,4 +1,4 @@
-import { hostname } from "node:os";
+import { cpus, hostname, totalmem } from "node:os";
 
 import { ApiClientError } from "@geo/http-client";
 import type {
@@ -56,6 +56,16 @@ import {
   noteMonitorTaskLeased,
   selectNextMonitorTask,
 } from "./monitor-scheduler";
+import {
+  enqueuePublishTask as enqueuePublishSchedulerTask,
+  getPublishSchedulerSnapshot,
+  initPublishScheduler,
+  notePublishTaskActivated,
+  notePublishTaskCanceled,
+  notePublishTaskCompleted,
+  notePublishTaskLeaseMiss,
+  selectNextPublishTask,
+} from "./publish-scheduler";
 import {
   retainHiddenPlaywrightPage,
   startHiddenPlaywrightReaper,
@@ -126,6 +136,9 @@ const leaseExtendIntervalMs = 60_000;
 const maxActivityItems = 60;
 const monitorBusinessTimeZone = "Asia/Shanghai";
 const authRequiredMonitorPlatforms = new Set(["yuanbao", "kimi", "deepseek", "doubao", "wenxin"]);
+const publishReservedSlots = 1;
+const minimumForegroundTotalConcurrency = 2;
+const maximumRuntimeTotalConcurrency = 4;
 
 interface RuntimeTaskRecord {
   id: string;
@@ -178,6 +191,7 @@ export interface RuntimeControllerSnapshot {
 interface PendingTaskRequest {
   taskId: string;
   routing: RuntimeTaskRouting;
+  platform?: string;
   source?: "desktop_task" | "monitoring_lease";
 }
 
@@ -198,14 +212,13 @@ interface RuntimeState {
   session: DesktopRuntimeSessionSyncRequest | null;
   client: DesktopClientInfo | null;
   running: boolean;
-  publishQueue: PendingTaskRequest[];
-  queuedPublishTaskIds: Set<string>;
   tasks: Map<string, RuntimeTaskRecord>;
   accounts: DesktopAccountInfo[];
   accountProfiles: Map<string, PublishAccountProfile>;
   activity: RuntimeControllerActivity[];
   activeExecutions: Map<string, ActiveRuntimeExecution>;
-  leaseInFlight: boolean;
+  leaseInFlightKinds: Set<"publish" | "monitor">;
+  publishFallbackBackoffUntil: number;
   heartbeatTimer: ReturnType<typeof setInterval> | null;
   pullTimer: ReturnType<typeof setInterval> | null;
   dispatchWsClient: DispatchWsClient | null;
@@ -224,14 +237,13 @@ const state: RuntimeState = {
   session: null,
   client: null,
   running: false,
-  publishQueue: [],
-  queuedPublishTaskIds: new Set<string>(),
   tasks: new Map<string, RuntimeTaskRecord>(),
   accounts: [],
   accountProfiles: new Map<string, PublishAccountProfile>(),
   activity: [],
   activeExecutions: new Map<string, ActiveRuntimeExecution>(),
-  leaseInFlight: false,
+  leaseInFlightKinds: new Set<"publish" | "monitor">(),
+  publishFallbackBackoffUntil: 0,
   heartbeatTimer: null,
   pullTimer: null,
   dispatchWsClient: null,
@@ -420,6 +432,7 @@ function startRuntime(): void {
 
   initScheduler();
   initMonitorScheduler();
+  initPublishScheduler();
   startHiddenPlaywrightReaper();
   state.running = true;
   setSchedulerPhase("running");
@@ -438,7 +451,7 @@ function startRuntime(): void {
 
 function stopRuntime(): void {
   state.running = false;
-  state.leaseInFlight = false;
+  state.leaseInFlightKinds.clear();
   for (const execution of state.activeExecutions.values()) {
     execution.abortController.abort();
   }
@@ -471,8 +484,7 @@ function stopRuntime(): void {
 }
 
 function clearRuntimeState(): void {
-  state.publishQueue = [];
-  state.queuedPublishTaskIds.clear();
+  initPublishScheduler();
   state.tasks.clear();
   state.accounts = [];
   state.accountProfiles.clear();
@@ -484,6 +496,7 @@ function clearRuntimeState(): void {
   state.lastAccountsSyncAt = 0;
   state.lastServerTime = null;
   state.lastError = null;
+  state.publishFallbackBackoffUntil = 0;
   setSchedulerQueueDepth(localQueueDepth());
 }
 
@@ -646,9 +659,16 @@ function handleTaskEvent(event: DesktopTaskEventMessage): void {
     }
   }
 
+  if (
+    event.kind === "publish"
+    && (event.type === "task_completed" || event.type === "task_reconciled" || event.type === "task_canceled")
+  ) {
+    notePublishTaskCanceled(event.task_id);
+  }
+
   if (event.type === "task_available") {
     if (event.kind === "publish") {
-      enqueuePublishTask(event.task_id, "rabbitmq-primary");
+      enqueuePublishTask(next.id, next.platform, "rabbitmq-primary");
     }
     pumpExecutionLoop();
   }
@@ -1036,43 +1056,40 @@ export async function unbindRuntimeAccount(accountId: string, syncVersion: numbe
   await syncAccounts("manual");
 }
 
-function enqueuePublishTask(taskId: string, routing: RuntimeTaskRouting): void {
-  if (!taskId || state.activeExecutions.has(taskId) || state.queuedPublishTaskIds.has(taskId)) {
+function enqueuePublishTask(taskId: string, platform: string, routing: RuntimeTaskRouting): void {
+  if (!taskId || state.activeExecutions.has(taskId)) {
     return;
   }
 
-  state.publishQueue.push({ taskId, routing });
-  state.queuedPublishTaskIds.add(taskId);
+  enqueuePublishSchedulerTask({ taskId, platform, routing });
   syncSchedulerSurface();
 }
 
-function dequeuePublishTask(): PendingTaskRequest | null {
-  const next = state.publishQueue.shift() ?? null;
-  if (next) {
-    state.queuedPublishTaskIds.delete(next.taskId);
-  }
-  syncSchedulerSurface();
-  return next;
-}
-
 function pumpExecutionLoop(): void {
-  if (!state.running || state.leaseInFlight) {
+  if (!state.running) {
     return;
   }
 
   syncSchedulerSurface();
 
-  if (hasActivePublishExecution()) {
+  if (canStartAnotherPublishExecution()) {
+    const selected = selectNextPublishTask({
+      maxConcurrency: resolveAdaptiveTotalConcurrency(),
+      activePlatforms: activePublishPlatforms(),
+      activeCount: activePublishCount(),
+    });
+    if (selected) {
+      void leaseSpecificTask(selected, "publish");
+      return;
+    }
+  }
+
+  if (shouldPullPublishFallback()) {
+    void pullNextTask("publish");
     return;
   }
 
-  if (state.publishQueue.length > 0) {
-    if (state.activeExecutions.size === 0) {
-      const queuedPublish = dequeuePublishTask();
-      if (queuedPublish) {
-        void leaseSpecificTask(queuedPublish, "publish");
-      }
-    }
+  if (hasPublishBacklog()) {
     return;
   }
 
@@ -1089,30 +1106,22 @@ function pumpExecutionLoop(): void {
     }
   }
 
-  if (state.activeExecutions.size === 0) {
-    // Publish task_available is push-delivered over the dispatch WebSocket. We
-    // only fall back to the HTTP pull when the push channel is down, otherwise
-    // every scheduler tick would wake the /lease endpoint for no reason.
-    if (!state.dispatchWsConnected) {
-      void pullNextTask("publish");
-    }
-    return;
-  }
+  return;
 }
 
 async function leaseSpecificTask(
   request: PendingTaskRequest,
   expectedKind: "publish" | "monitor",
 ): Promise<void> {
-  if (!canRunLive(state.session) || state.leaseInFlight) {
+  if (!canRunLive(state.session) || isLeaseInFlight(expectedKind)) {
     return;
   }
 
-  state.leaseInFlight = true;
+  state.leaseInFlightKinds.add(expectedKind);
 
   try {
     if (expectedKind === "monitor" && request.source === "monitoring_lease") {
-      state.leaseInFlight = false;
+      state.leaseInFlightKinds.delete(expectedKind);
       await executeLeasedMonitoringTask(request.taskId, request.routing);
       return;
     }
@@ -1121,10 +1130,12 @@ async function leaseSpecificTask(
     if (!leased.task) {
       if (expectedKind === "monitor") {
         noteMonitorTaskLeaseMiss(request.taskId);
+      } else {
+        notePublishTaskLeaseMiss(request.taskId);
       }
       return;
     }
-    state.leaseInFlight = false;
+    state.leaseInFlightKinds.delete(expectedKind);
     await executeLeasedTask(leased, request.routing);
   } catch (error) {
     if (expectedKind === "monitor") {
@@ -1141,6 +1152,8 @@ async function leaseSpecificTask(
       } else {
         noteMonitorTaskLeaseMiss(request.taskId);
       }
+    } else {
+      notePublishTaskLeaseMiss(request.taskId);
     }
 
     if (isApiClientError(error, 401)) {
@@ -1152,10 +1165,10 @@ async function leaseSpecificTask(
     setSchedulerError(state.lastError);
     recordActivity("warn", "指定任务领取失败", `${request.taskId} 未能成功领取：${state.lastError}`);
   } finally {
-    if (state.leaseInFlight) {
-      state.leaseInFlight = false;
+    if (state.leaseInFlightKinds.has(expectedKind)) {
+      state.leaseInFlightKinds.delete(expectedKind);
       syncSchedulerSurface();
-      if (state.publishQueue.length > 0 || localQueueDepth() > 0) {
+      if (localQueueDepth() > 0) {
         pumpExecutionLoop();
       }
     }
@@ -1164,11 +1177,11 @@ async function leaseSpecificTask(
 
 async function pullNextTask(kind: "publish" | "monitor"): Promise<void> {
   if (kind === "monitor") {
-    if (!canRunLive(state.session) || state.leaseInFlight) {
+    if (!canRunLive(state.session) || isLeaseInFlight("monitor")) {
       return;
     }
 
-    state.leaseInFlight = true;
+    state.leaseInFlightKinds.add("monitor");
     try {
       const leased = await leaseDesktopTask({ kind: "monitor" });
       state.lastPullAt = Date.now();
@@ -1177,7 +1190,7 @@ async function pullNextTask(kind: "publish" | "monitor"): Promise<void> {
       noteSchedulerPull();
 
       if (leased.task) {
-        state.leaseInFlight = false;
+        state.leaseInFlightKinds.delete("monitor");
         await executeLeasedTask(leased, "rabbitmq-primary");
         return;
       }
@@ -1193,7 +1206,7 @@ async function pullNextTask(kind: "publish" | "monitor"): Promise<void> {
         return;
       }
     } finally {
-      state.leaseInFlight = false;
+      state.leaseInFlightKinds.delete("monitor");
       syncSchedulerSurface();
     }
 
@@ -1201,11 +1214,12 @@ async function pullNextTask(kind: "publish" | "monitor"): Promise<void> {
     return;
   }
 
-  if (!canRunLive(state.session) || state.leaseInFlight) {
+  if (!canRunLive(state.session) || isLeaseInFlight("publish")) {
     return;
   }
 
-  state.leaseInFlight = true;
+  let leasedPublishTask = false;
+  state.leaseInFlightKinds.add("publish");
 
   try {
     const leased = await leaseDesktopTask({ kind });
@@ -1215,15 +1229,19 @@ async function pullNextTask(kind: "publish" | "monitor"): Promise<void> {
     noteSchedulerPull();
 
     if (!leased.task) {
+      state.publishFallbackBackoffUntil = Date.now() + pullIntervalMs;
       return;
     }
 
-    state.leaseInFlight = false;
+    state.publishFallbackBackoffUntil = 0;
+    leasedPublishTask = true;
+    state.leaseInFlightKinds.delete("publish");
     await executeLeasedTask(leased, "db-recovery");
   } catch (error) {
     state.lastPullAt = Date.now();
     state.lastPullStatus = "failed";
     state.lastError = errorMessage(error);
+    state.publishFallbackBackoffUntil = Date.now() + pullIntervalMs;
 
     noteTransportPull(false);
     setSchedulerError(state.lastError);
@@ -1235,18 +1253,21 @@ async function pullNextTask(kind: "publish" | "monitor"): Promise<void> {
 
     recordActivity("warn", "兜底拉取失败", state.lastError);
   } finally {
-    state.leaseInFlight = false;
+    state.leaseInFlightKinds.delete("publish");
     syncSchedulerSurface();
+    if (!leasedPublishTask && state.running) {
+      queueMicrotask(() => pumpExecutionLoop());
+    }
   }
 }
 
 async function pullMonitoringTasks(routing: RuntimeTaskRouting): Promise<void> {
   const leaseLimit = resolveLegacyMonitoringLeaseLimit();
-  if (!canRunLive(state.session) || state.leaseInFlight || leaseLimit <= 0) {
+  if (!canRunLive(state.session) || isLeaseInFlight("monitor") || leaseLimit <= 0) {
     return;
   }
 
-  state.leaseInFlight = true;
+  state.leaseInFlightKinds.add("monitor");
 
   try {
     const leased = await leaseMonitoringTasks({
@@ -1272,7 +1293,7 @@ async function pullMonitoringTasks(routing: RuntimeTaskRouting): Promise<void> {
 
     recordActivity("warn", "监控任务拉取失败", state.lastError);
   } finally {
-    state.leaseInFlight = false;
+    state.leaseInFlightKinds.delete("monitor");
     syncSchedulerSurface();
   }
 }
@@ -1417,6 +1438,7 @@ async function executeLeasedMonitoringTask(
   });
   noteMonitorTaskActivated(taskId);
   syncSchedulerSurface();
+  queueMicrotask(() => pumpExecutionLoop());
 
   try {
     const execution = await executeTaskAdapter(taskRecord, abortController.signal);
@@ -1971,11 +1993,14 @@ async function executeLeasedTask(
     interruptReason: taskRecord.kind === "monitor" ? interruptReasonFromTask(taskRecord) : null,
     lastSafePointAt: taskRecord.kind === "monitor" ? Date.now() : null,
   });
-  syncSchedulerSurface();
 
   if (task.kind === "monitor") {
     noteMonitorTaskLeased(task, routing);
+  } else {
+    notePublishTaskActivated(taskRecord.id, taskRecord.platform);
   }
+  syncSchedulerSurface();
+  queueMicrotask(() => pumpExecutionLoop());
 
   const extendHandle = setInterval(() => {
     void extendActiveLease(taskRecord.id, leased.lease_token as string);
@@ -2061,6 +2086,9 @@ async function executeLeasedTask(
 
   } finally {
     clearInterval(extendHandle);
+    if (taskRecord.kind === "publish") {
+      notePublishTaskCompleted(taskRecord.id, taskRecord.platform);
+    }
     state.activeExecutions.delete(taskRecord.id);
     syncSchedulerSurface();
     noteSchedulerTaskFinished();
@@ -2551,8 +2579,9 @@ function syncSchedulerSurface(): void {
 }
 
 function localQueueDepth(): number {
-  const snapshot = getMonitorSchedulerSnapshot();
-  return state.publishQueue.length + snapshot.queuedCount + snapshot.leasingCount;
+  const publish = getPublishSchedulerSnapshot();
+  const monitor = getMonitorSchedulerSnapshot();
+  return publish.queueDepth + monitor.queuedCount + monitor.leasingCount;
 }
 
 function primaryActiveTaskId(): string | null {
@@ -2561,8 +2590,26 @@ function primaryActiveTaskId(): string | null {
   return publish?.taskId ?? active[0]?.taskId ?? null;
 }
 
-function hasActivePublishExecution(): boolean {
-  return [...state.activeExecutions.values()].some((item) => item.kind === "publish");
+function isLeaseInFlight(kind: "publish" | "monitor"): boolean {
+  return state.leaseInFlightKinds.has(kind);
+}
+
+function activePublishCount(): number {
+  return [...state.activeExecutions.values()].filter((item) => item.kind === "publish").length;
+}
+
+function activePublishPlatforms(): Set<string> {
+  const platforms = new Set(
+    [...state.activeExecutions.values()]
+      .filter((item) => item.kind === "publish")
+      .map((item) => item.platform),
+  );
+  for (const task of getPublishSchedulerSnapshot().tasks) {
+    if (task.state === "active" || task.state === "leasing") {
+      platforms.add(task.platform);
+    }
+  }
+  return platforms;
 }
 
 function activeMonitorCount(): number {
@@ -2591,8 +2638,42 @@ function activeMonitorQuestionKeys(): Set<string> {
   );
 }
 
+function hasPublishBacklog(): boolean {
+  const snapshot = getPublishSchedulerSnapshot();
+  return snapshot.queuedCount + snapshot.leasingCount > 0;
+}
+
+function activeAdmissionCount(): number {
+  const publish = getPublishSchedulerSnapshot();
+  const monitor = getMonitorSchedulerSnapshot();
+  return state.activeExecutions.size
+    + publish.leasingCount
+    + monitor.leasingCount
+    + state.leaseInFlightKinds.size;
+}
+
+function hasTotalCapacityForNewExecution(): boolean {
+  return activeAdmissionCount() < resolveAdaptiveTotalConcurrency();
+}
+
+function canStartAnotherPublishExecution(): boolean {
+  const snapshot = getPublishSchedulerSnapshot();
+  return snapshot.queuedCount > 0
+    && !isLeaseInFlight("publish")
+    && hasTotalCapacityForNewExecution();
+}
+
+function shouldPullPublishFallback(): boolean {
+  return !state.dispatchWsConnected
+    && Date.now() >= state.publishFallbackBackoffUntil
+    && !isLeaseInFlight("publish")
+    && !hasPublishBacklog()
+    && activePublishCount() === 0
+    && hasTotalCapacityForNewExecution();
+}
+
 function canStartAnotherMonitorExecution(): boolean {
-  if (state.publishQueue.length > 0 || hasActivePublishExecution()) {
+  if (hasPublishBacklog() || isLeaseInFlight("publish") || isLeaseInFlight("monitor")) {
     return false;
   }
   const limit = resolveAdaptiveMonitorConcurrency();
@@ -2600,7 +2681,8 @@ function canStartAnotherMonitorExecution(): boolean {
     return false;
   }
   const scheduler = getMonitorSchedulerSnapshot();
-  return activeMonitorCount() + scheduler.leasingCount < limit;
+  return activeMonitorCount() + scheduler.leasingCount < limit
+    && hasTotalCapacityForNewExecution();
 }
 
 function resolveLegacyMonitoringLeaseLimit(): number {
@@ -2623,6 +2705,11 @@ function resolveLegacyMonitoringLeaseLimit(): number {
 }
 
 function resolveAdaptiveMonitorConcurrency(): number {
+  const backgroundBudget = resolveMonitorBackgroundBudget();
+  if (backgroundBudget <= 0) {
+    return 0;
+  }
+
   const monitorAccountCount = state.accounts.filter((account) =>
     isAIPlatformId(account.platform)
     && getProjectedAccountHealth({
@@ -2633,12 +2720,12 @@ function resolveAdaptiveMonitorConcurrency(): number {
     }).health === "live",
   ).length;
   if (monitorAccountCount <= 1) {
-    return monitorAccountCount;
+    return Math.min(monitorAccountCount, backgroundBudget);
   }
 
   const metrics = getProcessMetricsSnapshot().latestSample;
   if (!metrics) {
-    return 1;
+    return Math.min(1, backgroundBudget);
   }
 
   const totalCPUUsage = metrics.processes.reduce((sum, item) => sum + item.percentCPUUsage, 0);
@@ -2652,12 +2739,92 @@ function resolveAdaptiveMonitorConcurrency(): number {
     || mainPrivateBytesKB >= 1_000_000
     || processCount >= 40
   ) {
-    return 1;
+    return Math.min(1, backgroundBudget);
   }
 
+  return Math.min(2, backgroundBudget);
+}
+
+function resolveMonitorBackgroundBudget(): number {
+  if (hasPublishBacklog() || isLeaseInFlight("publish")) {
+    return 0;
+  }
+  return Math.max(0, resolveAdaptiveTotalConcurrency() - publishReservedSlots);
+}
+
+function resolveAdaptiveTotalConcurrency(): number {
+  const hardwareCap = resolveHardwareTotalConcurrency();
+  const runtimeCap = resolveRuntimeHealthTotalConcurrency(hardwareCap);
+  const featureFlagCap = resolveFeatureFlagTotalConcurrency() ?? maximumRuntimeTotalConcurrency;
+  return clampInteger(
+    Math.min(hardwareCap, runtimeCap, featureFlagCap),
+    featureFlagCap <= 1 ? 1 : minimumForegroundTotalConcurrency,
+    maximumRuntimeTotalConcurrency,
+  );
+}
+
+function resolveHardwareTotalConcurrency(): number {
+  const cpuCount = Math.max(1, cpus().length);
+  const memoryGB = totalmem() / 1024 / 1024 / 1024;
+
+  if (cpuCount >= 10 && memoryGB >= 32) {
+    return 4;
+  }
+  if (cpuCount >= 6 && memoryGB >= 16) {
+    return 3;
+  }
   return 2;
 }
 
+function resolveRuntimeHealthTotalConcurrency(hardwareCap: number): number {
+  const metrics = getProcessMetricsSnapshot().latestSample;
+  if (!metrics) {
+    return Math.min(hardwareCap, minimumForegroundTotalConcurrency);
+  }
+
+  const totalCPUUsage = metrics.processes.reduce((sum, item) => sum + item.percentCPUUsage, 0);
+  const totalPrivateBytesKB = metrics.totals.privateBytes;
+  const processCount = metrics.totals.processCount;
+  const mainPrivateBytesKB = metrics.mainProcess.memory?.private ?? 0;
+
+  if (
+    totalCPUUsage >= 180
+    || totalPrivateBytesKB >= 2_500_000
+    || mainPrivateBytesKB >= 1_000_000
+    || processCount >= 40
+  ) {
+    return minimumForegroundTotalConcurrency;
+  }
+
+  if (
+    totalCPUUsage >= 120
+    || totalPrivateBytesKB >= 1_800_000
+    || mainPrivateBytesKB >= 750_000
+    || processCount >= 32
+  ) {
+    return Math.min(hardwareCap, 3);
+  }
+
+  return hardwareCap;
+}
+
+function resolveFeatureFlagTotalConcurrency(): number | null {
+  const raw = process.env.GEO_DESKTOP_MAX_TOTAL_CONCURRENCY?.trim();
+  if (!raw) {
+    return null;
+  }
+
+  const parsed = Number.parseInt(raw, 10);
+  if (!Number.isFinite(parsed)) {
+    return null;
+  }
+  return clampInteger(parsed, 1, maximumRuntimeTotalConcurrency);
+}
+
+function clampInteger(value: number, min: number, max: number): number {
+  return Math.min(max, Math.max(min, Math.floor(value)));
+}
+
 function handleAuthExpired(error: unknown): void {
   const message = errorMessage(error);
   state.lastError = message;

apps/desktop-client/src/main/runtime-snapshot.ts

@@ -7,6 +7,7 @@ import { collectRecoverySnapshot } from "./crash-recovery";
 import { getKeepAlivePlan } from "./keep-alive";
 import { getLeaseManagerSnapshot } from "./lease-manager";
 import { getMonitorSchedulerSnapshot } from "./monitor-scheduler";
+import { getPublishSchedulerSnapshot } from "./publish-scheduler";
 import { getObservedRequestSnapshot } from "./network-observer";
 import { getHiddenPlaywrightSnapshot } from "./playwright-cdp";
 import { getRateLimiterSnapshot } from "./rate-limiter";
@@ -169,6 +170,7 @@ function createLiveRuntimeSnapshot(controller: ReturnType<typeof getRuntimeContr
         lastError: controller.lastError,
       },
       scheduler,
+      publishScheduler: getPublishSchedulerSnapshot(),
       monitorScheduler: getMonitorSchedulerSnapshot(),
       sessions,
       hotViews,