diff --git a/devlog/_plan/260906_c_lane/000_plan.md b/devlog/_plan/260906_c_lane/000_plan.md
new file mode 100644
index 0000000000..8f7385965e
--- /dev/null
+++ b/devlog/_plan/260906_c_lane/000_plan.md
@@ -0,0 +1,9 @@
+# C-lane integration coordination
+
+Scope: carry public PRs #3638, #3536, #3631, #3576, #3658 with original-author attribution and user-authorized stacked PR integration into dev. No local tests, typechecks or builds.
+
+The user explicitly requires security working plans and reviews to stay in gitignored scratch. Full numbered diff-level roadmap and evidence live in `.tmp/c-lane/` of the bound d778 checkout; this neutral index is the PABCD plan-unit anchor. This storage override follows AGENTS.md and does not weaken any implementation or verification criterion.
+
+Order: roadmap → service scheduler → account persistence → OAuth configuration → Antigravity refresh/replay → quota diagnostics → final stack integration. OAuth refresh consumes the configuration layer; other layers retain the user-requested stack order. Each layer is independently reviewed and tested on a remote host before cycle close. Hosted full CI runs at each PR head and gates final bottom-up merges.
+
+Original PR and fully solved linked issues close immediately after the matching change is proven on dev. Partial diagnostic work does not close a broader unresolved report. Release branches and live account settings are out of scope.
diff --git a/docs-site/src/content/docs/fr/reference/cli/lifecycle.md b/docs-site/src/content/docs/fr/reference/cli/lifecycle.md
index ac152db316..59652bbaef 100644
--- a/docs-site/src/content/docs/fr/reference/cli/lifecycle.md
+++ b/docs-site/src/content/docs/fr/reference/cli/lifecycle.md
@@ -152,6 +152,12 @@ Invalide le cache local du sélecteur de modèles de Codex afin qu’il soit rec
Exécute opencodex comme service d’arrière-plan géré à l’ouverture de session — **launchd** sous macOS, **unité utilisateur systemd** sous Linux et **Task Scheduler** sous Windows — qui démarre automatiquement à la connexion et redémarre après un plantage. Les services définissent `OCX_SERVICE=1` afin qu’un redémarrage ne réécrive pas inutilement la configuration Codex.
+Les installations via le Planificateur de tâches Windows utilisent une priorité de processus normale (`Priority=4`).
+L’ancienne priorité d’arrière-plan (`7`, également la valeur par défaut si le paramètre est omis) peut retarder les réponses
+aux contrôles de santé en cas de contention CPU : la zone de notification affiche alors Offline même si le processus fonctionne.
+Après la mise à jour, exécutez `ocx service repair` pour migrer cette priorité enregistrée et redémarrer le service.
+Une confirmation UAC peut être nécessaire. Une priorité déjà normale ou haute ne déclenche pas, à elle seule, de réenregistrement.
+
| Sous-commande | Action |
| --- | --- |
| aucune | Installe et démarre le service s’il est absent ; sinon, actualise et redémarre le service existant. Une définition Task Scheduler Windows saine est réutilisée ; une définition obsolète peut être réenregistrée et nécessiter une élévation. |
diff --git a/docs-site/src/content/docs/ja/reference/cli/lifecycle.md b/docs-site/src/content/docs/ja/reference/cli/lifecycle.md
index d6e9425b52..b187ff7fd3 100644
--- a/docs-site/src/content/docs/ja/reference/cli/lifecycle.md
+++ b/docs-site/src/content/docs/ja/reference/cli/lifecycle.md
@@ -156,6 +156,12 @@ Codex のローカル モデル ピッカー キャッシュを無効にし、
opencodex を、ログイン時に自動起動し、クラッシュ時に自動再起動するログイン管理バックグラウンド サービス (macOS **launchd**、Linux **systemd ユーザー ユニット**、Windows **タスク スケジューラ**) として実行します。サービスは `OCX_SERVICE=1` を設定して実行されるため、再起動によって Codex 設定が変更されることはありません。
+Windows タスク スケジューラでインストールするサービスは、通常のプロセス優先度（`Priority=4`）を使用します。
+以前のバックグラウンド優先度（`7`。省略時もスケジューラの既定値は `7`）では、CPU の競合により
+ヘルスチェックへの応答が遅れ、プロセスが動作中でもトレイに Offline と表示されることがあります。
+アップグレード後に `ocx service repair` を実行すると、この登録済み優先度を移行してサービスを再起動します。
+移行時に UAC の承認が必要になる場合があります。すでに通常または高優先度の場合、優先度だけを理由に再登録しません。
+
|サブコマンド |アクション |
| --- | --- |
|なし |未インストールなら作成して開始し、既存なら更新して再起動します。正常な Windows タスク スケジューラ定義は再利用しますが、古い定義は再登録され、昇格が必要になる場合があります。 |
diff --git a/docs-site/src/content/docs/ko/reference/cli/lifecycle.md b/docs-site/src/content/docs/ko/reference/cli/lifecycle.md
index 081c791bbb..4847614674 100644
--- a/docs-site/src/content/docs/ko/reference/cli/lifecycle.md
+++ b/docs-site/src/content/docs/ko/reference/cli/lifecycle.md
@@ -203,6 +203,12 @@ Codex의 로컬 모델 선택기 캐시를 무효화하여, 활성 opencodex 카
유닛, Windows **Task Scheduler**). 로그인 시 자동 시작하고 충돌 시 자동 재시작합니다. 서비스 실행은
`OCX_SERVICE=1`을 설정하므로 재시작해도 Codex 설정이 흔들리지 않습니다.
+Windows 작업 스케줄러로 설치하는 서비스는 보통 프로세스 우선순위(`Priority=4`)를 사용합니다.
+이전의 백그라운드 우선순위(`7`, 생략 시에도 스케줄러 기본값은 `7`)에서는 CPU 경합으로 상태 확인 응답이
+늦어져 프로세스가 살아 있어도 트레이에 Offline이 표시될 수 있습니다. 업그레이드 후 `ocx service repair`를
+실행하면 등록된 해당 우선순위를 변경하고 서비스를 재시작합니다. 이 과정에서 UAC 승인이 필요할 수 있습니다.
+이미 보통 또는 높음 우선순위인 경우 우선순위만을 이유로 다시 등록하지 않습니다.
+
| 하위 명령 | 동작 |
| --- | --- |
| 없음 | 서비스가 없으면 설치하고 시작하며, 이미 있으면 새로 고쳐 재시작합니다. 정상인 Windows 작업 스케줄러 정의는 재사용하지만, 오래된 정의는 다시 등록되어 관리자 권한 승인이 필요할 수 있습니다. |
diff --git a/docs-site/src/content/docs/reference/cli/lifecycle.md b/docs-site/src/content/docs/reference/cli/lifecycle.md
index 0e91777061..e75a2b6241 100644
--- a/docs-site/src/content/docs/reference/cli/lifecycle.md
+++ b/docs-site/src/content/docs/reference/cli/lifecycle.md
@@ -237,6 +237,12 @@ Run opencodex as a login-managed background service (macOS **launchd**, Linux **
Windows **Task Scheduler**) that auto-starts on login and auto-restarts on crash. Service runs set
`OCX_SERVICE=1` so a restart does not churn the Codex config.
+Windows Task Scheduler installs use normal process priority (`Priority=4`). The older background
+priority (`7`, also the scheduler default when omitted) can delay the proxy's health responses under
+CPU contention, making the tray report Offline even while the process is alive. After upgrading,
+run `ocx service repair` to migrate that registered priority and restart the service. This migration
+may request UAC approval; a priority already set to normal or high does not itself trigger replacement.
+
The Windows wrapper verifies its baked Bun runtime and CLI entry before every start attempt. If an
interrupted package update removed either file, it logs one `installation is incomplete` message and
stops instead of retrying the same missing executable every five seconds. Reinstall opencodex, then
diff --git a/docs-site/src/content/docs/ru/reference/cli/lifecycle.md b/docs-site/src/content/docs/ru/reference/cli/lifecycle.md
index 30b4e627a3..1ace7cc10f 100644
--- a/docs-site/src/content/docs/ru/reference/cli/lifecycle.md
+++ b/docs-site/src/content/docs/ru/reference/cli/lifecycle.md
@@ -220,6 +220,12 @@ unit**, Windows **Task Scheduler**), которая автоматически
перезапускается при crash. Запуски службы выставляют `OCX_SERVICE=1`, чтобы restart не дёргал
конфиг Codex.
+При установке через Windows Task Scheduler используется обычный приоритет процесса (`Priority=4`).
+Прежний фоновый приоритет (`7`, также значение планировщика по умолчанию при отсутствии параметра)
+при конкуренции за CPU может задерживать ответы проверки состояния: трей показывает Offline, хотя процесс работает.
+После обновления выполните `ocx service repair`, чтобы изменить этот зарегистрированный приоритет и перезапустить службу.
+Может потребоваться подтверждение UAC. Если уже задан обычный или высокий приоритет, сам приоритет не вызывает перерегистрацию.
+
| Подкоманда | Действие |
| --- | --- |
| none | Установить и запустить службу, если её нет; иначе обновить и перезапустить существующую службу. Исправная конфигурация Windows Task Scheduler используется повторно; устаревшая может быть перерегистрирована и потребовать повышения прав. |
diff --git a/docs-site/src/content/docs/tr/reference/cli/lifecycle.md b/docs-site/src/content/docs/tr/reference/cli/lifecycle.md
index e26f4c8662..6a7a565139 100644
--- a/docs-site/src/content/docs/tr/reference/cli/lifecycle.md
+++ b/docs-site/src/content/docs/tr/reference/cli/lifecycle.md
@@ -244,6 +244,12 @@ kullanıcı birimi**, Windows **Görev Zamanlayıcı**) olarak çalıştırın.
çalıştırmaları `OCX_SERVICE=1` ayarlar, böylece bir yeniden başlatma Codex
yapılandırmasını dalgalandırmaz.
+Windows Görev Zamanlayıcı kurulumları normal işlem önceliğini (`Priority=4`) kullanır. Eski arka plan
+önceliği (`7`; değer belirtilmediğinde de zamanlayıcının varsayılanı `7` olur), CPU çekişmesi sırasında
+sağlık denetimi yanıtlarını geciktirebilir ve işlem çalışırken bile sistem tepsisinde Offline görünmesine neden olabilir.
+Güncellemeden sonra kayıtlı bu önceliği değiştirmek ve servisi yeniden başlatmak için `ocx service repair` komutunu çalıştırın.
+UAC onayı gerekebilir. Zaten normal veya yüksek öncelik ayarlanmışsa yalnızca öncelik nedeniyle yeniden kayıt yapılmaz.
+
| Alt komut | Eylem |
| --- | --- |
| none | Servis yoksa kurup başlatın; varsa yenileyip yeniden başlatın. Sağlıklı bir Windows Task Scheduler tanımı yeniden kullanılır; eski bir tanım yeniden kaydedilebilir ve yükseltme gerektirebilir. |
diff --git a/docs-site/src/content/docs/zh-cn/reference/cli/lifecycle.md b/docs-site/src/content/docs/zh-cn/reference/cli/lifecycle.md
index dfae403438..f0c6ee5a59 100644
--- a/docs-site/src/content/docs/zh-cn/reference/cli/lifecycle.md
+++ b/docs-site/src/content/docs/zh-cn/reference/cli/lifecycle.md
@@ -153,6 +153,10 @@ ocx status --json
将 opencodex 作为登录管理的后台服务运行（macOS **launchd**、Linux **systemd user unit**、Windows **Task Scheduler**），在登录时自动启动，在崩溃时自动重启。服务运行会设置 `OCX_SERVICE=1`，因此重启时不会反复改动 Codex 配置。
+Windows 任务计划程序安装使用普通进程优先级（`Priority=4`）。旧的后台优先级（`7`，省略时调度器也默认使用 `7`）
+可能在 CPU 竞争时延迟健康检查响应，导致进程仍存活时托盘显示 Offline。升级后运行 `ocx service repair`，
+即可迁移该注册优先级并重启服务；过程中可能需要批准 UAC 提示。已设为普通或高优先级时，不会仅因优先级而重新注册。
+
| 子命令 | 操作 |
| --- | --- |
| none | 服务不存在时安装并启动；已存在时刷新并重启。正常的 Windows 任务计划程序定义会复用；过时定义可能会重新注册并需要提升权限。 |
diff --git a/docs-site/src/content/docs/zh-tw/reference/cli/lifecycle.md b/docs-site/src/content/docs/zh-tw/reference/cli/lifecycle.md
index bb377466fd..71d575e774 100644
--- a/docs-site/src/content/docs/zh-tw/reference/cli/lifecycle.md
+++ b/docs-site/src/content/docs/zh-tw/reference/cli/lifecycle.md
@@ -147,6 +147,10 @@ ocx status --json
將 opencodex 作為登入管理的背景服務執行（macOS **launchd**、Linux **systemd user unit**、Windows **Task Scheduler**），在登入時自動啟動並在崩潰時自動重啟。服務執行時設定 `OCX_SERVICE=1`，使重啟不會折騰 Codex 設定。
+Windows 工作排程器安裝使用一般處理程序優先順序（`Priority=4`）。舊的背景優先順序（`7`，省略時排程器也預設使用 `7`）
+可能在 CPU 競爭時延遲健康檢查回應，導致處理程序仍在執行時系統匣顯示 Offline。升級後執行 `ocx service repair`，
+即可遷移該註冊優先順序並重新啟動服務；過程中可能需要核准 UAC 提示。已設為一般或高優先順序時，不會僅因優先順序而重新註冊。
+
| 子指令 | 動作 |
| --- | --- |
| 無 | 服務不存在時安裝並啟動；已存在時重新整理並重啟。正常的 Windows 工作排程器定義會沿用；過時的定義可能會重新註冊並需要提高權限。 |
diff --git a/src/service.ts b/src/service.ts
index b37e88c3db..fa8770ec55 100644
--- a/src/service.ts
+++ b/src/service.ts
@@ -1926,7 +1926,7 @@ export function buildWindowsTaskXml(
true
false
PT0S
- 7
+ 4
PT1M
3
@@ -2972,6 +2972,10 @@ export async function repairService(deps: RepairServiceDeps = {}): Promise
const identityUpgradeNeeded = registrationHealthy
&& preferredSid !== undefined
&& !windowsTaskHasSessionRecoveryTriggers(triggers, preferredSid);
+ // Omitted Priority also defaults to 7; background priority can starve health probes under CPU load.
+ const priorityUpgradeNeeded = registrationHealthy && taskXmlOptionalValueEquals(
+ taskXmlSection(taskXmlWithoutCommentsAndCdata(registeredXml), "Settings"), "Priority", "7",
+ );
const refreshableLegacy = windowsTaskRegistrationRefreshableLegacy(
registeredXml,
deps.schedulerWscript,
@@ -2998,7 +3002,7 @@ export async function repairService(deps: RepairServiceDeps = {}): Promise
// Re-register only when the registered XML is actually stale, so the ordinary repair
// stays free of `schtasks /create` and its UAC prompt.
let startExpectedXml = registeredXml;
- if (!registrationHealthy || identityUpgradeNeeded) {
+ if (!registrationHealthy || identityUpgradeNeeded || priorityUpgradeNeeded) {
// The task was stopped above, so a failed replacement must not exit here: `/create /f`
// can be rejected, elevation can be cancelled, and staging or verification can fail.
// Any of those would leave a previously runnable proxy stopped and the user worse off
diff --git a/tests/service/service.test.ts b/tests/service/service.test.ts
index e36a2785b6..2eadf7f4fc 100644
--- a/tests/service/service.test.ts
+++ b/tests/service/service.test.ts
@@ -491,6 +491,7 @@ describe("Windows service task", () => {
expect(xml).toContain("false");
expect(xml).toContain("false");
expect(xml).toContain("PT0S");
+ expect(xml).toContain("4");
expect(xml).toContain("");
expect(xml).toContain("PT1M");
expect(xml).toContain("3");
@@ -2601,6 +2602,37 @@ describe("service repair", () => {
expect(calls).toEqual(["env", "auth", "stop", "assets", "reregister", "start", "state"]);
});
+ test.each(["7", "omitted", "4", "1"])("repair migrates only the background scheduler priority (%s)", async priority => {
+ const calls: string[] = [];
+ const previousXml = buildWindowsTaskXml().replace(/\d<\/Priority>/,
+ priority === "omitted" ? "" : `${priority}`);
+ const shouldUpgrade = priority === "7" || priority === "omitted";
+ let attemptNonce = "";
+ await repairService({
+ platform: "win32",
+ diagnose: () => baseDiag,
+ assertEnv: () => {},
+ assertAuth: () => {},
+ resolveExpectedUserId: () => TEST_WINDOWS_TASK_SID,
+ stopScheduler: () => { calls.push("stop"); },
+ writeSchedulerAssets: () => { calls.push("assets"); },
+ readSchedulerXml: () => attemptNonce
+ ? buildWindowsTaskXml(undefined, undefined, attemptNonce)
+ : previousXml,
+ reregisterScheduler: async (nonce, registeredXml) => {
+ expect(registeredXml).toBe(previousXml);
+ expect(buildWindowsTaskXmlDocument()).toContain("4");
+ calls.push("reregister");
+ attemptNonce = nonce;
+ },
+ startScheduler: () => { calls.push("start"); },
+ writeSchedulerState: () => { calls.push("state"); },
+ });
+ expect(calls).toEqual(shouldUpgrade
+ ? ["stop", "assets", "reregister", "start", "state"]
+ : ["stop", "assets", "start", "state"]);
+ });
+
test("repair migrates an exact legacy account name to the preferred SID", async () => {
const calls: string[] = [];
const sid = "S-1-5-21-111-222-333-1001";