From 8af638e7e20c645b22d96da5e30665e8e9cbf6ad Mon Sep 17 00:00:00 2001
From: Marius <marius@kilocode.ai>
Date: Tue, 12 May 2026 09:27:32 +0200
Subject: [PATCH] Fix expired Codex auth recovery (#10136)

* fix: recover expired Codex auth

* fix: minimize Codex auth shared changes

* fix: format Codex auth prompt
---
 .changeset/codex-chatgpt-reauth.md            |   6 +
 .../kilo-vscode/tests/unit/errorUtils.test.ts |  21 +++
 .../src/components/chat/ErrorDisplay.tsx      |  53 ++++++++
 .../kilo-vscode/webview-ui/src/i18n/ar.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/br.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/bs.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/da.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/de.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/en.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/es.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/fr.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/ja.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/ko.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/nl.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/no.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/pl.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/ru.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/th.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/tr.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/uk.ts     |   5 +
 .../kilo-vscode/webview-ui/src/i18n/zh.ts     |   4 +
 .../kilo-vscode/webview-ui/src/i18n/zht.ts    |   4 +
 .../webview-ui/src/utils/errorUtils.ts        |  19 +++
 .../src/kilocode/provider/codex-refresh.ts    | 102 +++++++++++++++
 packages/opencode/src/plugin/codex.ts         |  19 +--
 packages/opencode/src/session/message-v2.ts   |   9 ++
 .../test/kilocode/codex-auth-refresh.test.ts  | 123 ++++++++++++++++++
 27 files changed, 430 insertions(+), 15 deletions(-)
 create mode 100644 .changeset/codex-chatgpt-reauth.md
 create mode 100644 packages/opencode/src/kilocode/provider/codex-refresh.ts
 create mode 100644 packages/opencode/test/kilocode/codex-auth-refresh.test.ts

diff --git a/.changeset/codex-chatgpt-reauth.md b/.changeset/codex-chatgpt-reauth.md
new file mode 100644
index 00000000000..50ba4d3fd1c
--- /dev/null
+++ b/.changeset/codex-chatgpt-reauth.md
@@ -0,0 +1,6 @@
+---
+"kilo-code": patch
+"@kilocode/cli": patch
+---
+
+Show ChatGPT sign-in again when Codex authentication expires.
diff --git a/packages/kilo-vscode/tests/unit/errorUtils.test.ts b/packages/kilo-vscode/tests/unit/errorUtils.test.ts
index 4667a1ba3db..aef7ae2dcb5 100644
--- a/packages/kilo-vscode/tests/unit/errorUtils.test.ts
+++ b/packages/kilo-vscode/tests/unit/errorUtils.test.ts
@@ -3,6 +3,7 @@ import type { AssistantMessage } from "@kilocode/sdk/v2"
 import {
   unwrapError,
   parseAssistantError,
+  parseProviderAuthError,
   isUnauthorizedPaidModelError,
   isUnauthorizedPromotionLimitError,
 } from "../../webview-ui/src/utils/errorUtils"
@@ -97,6 +98,26 @@ describe("parseAssistantError", () => {
   })
 })
 
+describe("parseProviderAuthError", () => {
+  it("extracts provider auth errors", () => {
+    const error: AssistantError = {
+      name: "ProviderAuthError",
+      data: { providerID: "openai", message: "Sign in again" },
+    }
+
+    expect(parseProviderAuthError(error)).toEqual({ providerID: "openai", message: "Sign in again" })
+  })
+
+  it("returns null for non-provider-auth errors", () => {
+    const error: AssistantError = {
+      name: "APIError",
+      data: { statusCode: 401, message: "Unauthorized", isRetryable: false },
+    }
+
+    expect(parseProviderAuthError(error)).toBeNull()
+  })
+})
+
 describe("isUnauthorizedPaidModelError", () => {
   it("returns true for 401 + PAID_MODEL_AUTH_REQUIRED", () => {
     expect(isUnauthorizedPaidModelError({ statusCode: 401, code: "PAID_MODEL_AUTH_REQUIRED" })).toBe(true)
diff --git a/packages/kilo-vscode/webview-ui/src/components/chat/ErrorDisplay.tsx b/packages/kilo-vscode/webview-ui/src/components/chat/ErrorDisplay.tsx
index e84d4c10f02..ef600bccfc3 100644
--- a/packages/kilo-vscode/webview-ui/src/components/chat/ErrorDisplay.tsx
+++ b/packages/kilo-vscode/webview-ui/src/components/chat/ErrorDisplay.tsx
@@ -1,16 +1,20 @@
 import { Component, createMemo, Switch, Match } from "solid-js"
 import { Card } from "@kilocode/kilo-ui/card"
 import { Collapsible } from "@kilocode/kilo-ui/collapsible"
+import { useDialog } from "@kilocode/kilo-ui/context/dialog"
 import { ErrorDetails } from "@kilocode/kilo-ui/error-details"
 import { Button } from "@kilocode/kilo-ui/button"
 import type { AssistantMessage } from "@kilocode/sdk/v2"
 import { useLanguage } from "../../context/language"
+import { useProvider } from "../../context/provider"
 import {
   unwrapError,
   parseAssistantError,
+  parseProviderAuthError,
   isUnauthorizedPaidModelError,
   isUnauthorizedPromotionLimitError,
 } from "../../utils/errorUtils"
+import ProviderConnectDialog from "../settings/ProviderConnectDialog"
 
 export interface ErrorDisplayProps {
   error: NonNullable<AssistantMessage["error"]>
@@ -19,7 +23,28 @@ export interface ErrorDisplayProps {
 
 export const ErrorDisplay: Component<ErrorDisplayProps> = (props) => {
   const { t } = useLanguage()
+  const dialog = useDialog()
+  const provider = useProvider()
   const parsed = createMemo(() => parseAssistantError(props.error))
+  const auth = createMemo(() => parseProviderAuthError(props.error))
+  const authProvider = createMemo(() => {
+    const err = auth()
+    if (!err) return
+    return provider.providers()[err.providerID]
+  })
+  const canAuth = createMemo(() => {
+    const err = auth()
+    if (!err || !authProvider()) return false
+    return (provider.authMethods()[err.providerID] ?? []).length > 0
+  })
+  const oauth = createMemo(() => {
+    const err = auth()
+    if (!err) return false
+    return (
+      err.providerID === "openai" &&
+      (provider.authMethods()[err.providerID] ?? []).some((method) => method.type === "oauth")
+    )
+  })
 
   const errorText = createMemo(() => {
     const msg = props.error.data?.message
@@ -28,6 +53,12 @@ export const ErrorDisplay: Component<ErrorDisplayProps> = (props) => {
     return unwrapError(String(msg))
   })
 
+  function connectProvider() {
+    const err = auth()
+    if (!err) return
+    dialog.show(() => <ProviderConnectDialog providerID={err.providerID} oauthOnly={oauth()} />)
+  }
+
   return (
     <Switch
       fallback={
@@ -69,6 +100,28 @@ export const ErrorDisplay: Component<ErrorDisplayProps> = (props) => {
           </Button>
         </div>
       </Match>
+      <Match when={canAuth()}>
+        <div data-component="auth-prompt">
+          <div data-slot="auth-prompt-header">
+            <span data-slot="auth-prompt-icon">↻</span>
+            <span data-slot="auth-prompt-title">
+              {oauth()
+                ? t("error.providerAuth.chatgpt.title")
+                : t("error.providerAuth.title", { provider: authProvider()?.name ?? auth()?.providerID ?? "provider" })}
+            </span>
+          </div>
+          <p data-slot="auth-prompt-description">
+            {oauth()
+              ? t("error.providerAuth.chatgpt.description")
+              : t("error.providerAuth.description", {
+                  provider: authProvider()?.name ?? auth()?.providerID ?? "provider",
+                })}
+          </p>
+          <Button variant="primary" onClick={connectProvider}>
+            {oauth() ? t("settings.providers.action.signInChatGPT") : t("common.connect")}
+          </Button>
+        </div>
+      </Match>
     </Switch>
   )
 }
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/ar.ts b/packages/kilo-vscode/webview-ui/src/i18n/ar.ts
index 5e9e559b4be..cb292f16288 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/ar.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/ar.ts
@@ -462,6 +462,11 @@ export const dict = {
   "error.promotionLimit.description":
     "سجّل مجانًا للمتابعة واستكشاف أكثر من 500 نموذج. يستغرق دقيقتين، بدون بطاقة ائتمان. أو عُد لاحقًا.",
   "error.promotionLimit.action": "التسجيل",
+  "error.providerAuth.title": "تم تسجيل خروجك من {{provider}}",
+  "error.providerAuth.description": "أعد الاتصال بـ {{provider}}، ثم أرسل رسالتك مرة أخرى.",
+  "error.providerAuth.chatgpt.title": "تسجيل الدخول باستخدام ChatGPT مرة أخرى",
+  "error.providerAuth.chatgpt.description":
+    "سجل الدخول باستخدام ChatGPT مرة أخرى، ثم أرسل رسالتك مرة أخرى لمواصلة استخدام نماذج Codex.",
 
   "error.chain.unknown": "خطأ غير معروف",
   "error.chain.causedBy": "بسبب:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/br.ts b/packages/kilo-vscode/webview-ui/src/i18n/br.ts
index afb0af7903d..c7dd24dc01c 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/br.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/br.ts
@@ -465,6 +465,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Cadastre-se gratuitamente para continuar e explorar mais de 500 modelos. Leva 2 minutos, sem cartão de crédito. Ou volte mais tarde.",
   "error.promotionLimit.action": "Cadastrar-se",
+  "error.providerAuth.title": "{{provider}} desconectou você",
+  "error.providerAuth.description": "Reconecte o {{provider}} e envie sua mensagem novamente.",
+  "error.providerAuth.chatgpt.title": "OpenAI desconectou você",
+  "error.providerAuth.chatgpt.description":
+    "Faça login no ChatGPT novamente e envie sua mensagem de novo para continuar usando os modelos Codex.",
 
   "error.chain.unknown": "Erro desconhecido",
   "error.chain.causedBy": "Causado por:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/bs.ts b/packages/kilo-vscode/webview-ui/src/i18n/bs.ts
index e80ad6075ae..461584d1240 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/bs.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/bs.ts
@@ -469,6 +469,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Registrujte se besplatno da nastavite i istražite preko 500 modela. Traje 2 minute, bez kreditne kartice. Ili se vratite kasnije.",
   "error.promotionLimit.action": "Registracija",
+  "error.providerAuth.title": "{{provider}} vas je odjavio",
+  "error.providerAuth.description": "Ponovo se povežite sa {{provider}}, a zatim ponovo pošaljite poruku.",
+  "error.providerAuth.chatgpt.title": "OpenAI vas je odjavio",
+  "error.providerAuth.chatgpt.description":
+    "Ponovo se prijavite na ChatGPT, a zatim ponovo pošaljite poruku da nastavite koristiti Codex modele.",
 
   "error.chain.unknown": "Nepoznata greška",
   "error.chain.causedBy": "Uzrok:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/da.ts b/packages/kilo-vscode/webview-ui/src/i18n/da.ts
index 419fa7e6784..77996e22001 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/da.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/da.ts
@@ -466,6 +466,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Tilmeld dig gratis for at fortsætte og udforske over 500 modeller. Tager 2 minutter, intet kreditkort nødvendigt. Eller kom tilbage senere.",
   "error.promotionLimit.action": "Tilmeld dig",
+  "error.providerAuth.title": "{{provider}} har logget dig af",
+  "error.providerAuth.description": "Forbind til {{provider}} igen, og send din besked på ny.",
+  "error.providerAuth.chatgpt.title": "OpenAI har logget dig af",
+  "error.providerAuth.chatgpt.description":
+    "Log ind med ChatGPT igen, og send din besked på ny for at fortsætte med at bruge Codex-modeller.",
 
   "error.chain.unknown": "Ukendt fejl",
   "error.chain.causedBy": "Forårsaget af:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/de.ts b/packages/kilo-vscode/webview-ui/src/i18n/de.ts
index ddebf63ce2f..231bab9d25a 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/de.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/de.ts
@@ -471,6 +471,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Registriere dich kostenlos, um weiterzumachen und über 500 Modelle zu entdecken. Dauert 2 Minuten, keine Kreditkarte nötig. Oder komm später wieder.",
   "error.promotionLimit.action": "Registrieren",
+  "error.providerAuth.title": "{{provider}} hat Sie abgemeldet",
+  "error.providerAuth.description": "Verbinden Sie {{provider}} erneut und senden Sie Ihre Nachricht noch einmal.",
+  "error.providerAuth.chatgpt.title": "OpenAI hat Sie abgemeldet",
+  "error.providerAuth.chatgpt.description":
+    "Melden Sie sich erneut bei ChatGPT an und senden Sie Ihre Nachricht noch einmal, um weiterhin Codex-Modelle zu verwenden.",
 
   "error.chain.unknown": "Unbekannter Fehler",
   "error.chain.causedBy": "Verursacht durch:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/en.ts b/packages/kilo-vscode/webview-ui/src/i18n/en.ts
index 412d8a6ed65..9770f4753e4 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/en.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/en.ts
@@ -467,6 +467,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Sign up for free to continue and explore 500 other models. Takes 2 minutes, no credit card required. Or come back later.",
   "error.promotionLimit.action": "Sign Up",
+  "error.providerAuth.title": "{{provider}} signed you out",
+  "error.providerAuth.description": "Reconnect {{provider}}, then send your message again.",
+  "error.providerAuth.chatgpt.title": "OpenAI signed you out",
+  "error.providerAuth.chatgpt.description":
+    "Sign in with ChatGPT again, then send your message again to keep using Codex models.",
 
   "error.chain.unknown": "Unknown error",
   "error.chain.causedBy": "Caused by:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/es.ts b/packages/kilo-vscode/webview-ui/src/i18n/es.ts
index 7e36eaef358..626627dadfa 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/es.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/es.ts
@@ -469,6 +469,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Regístrate gratis para continuar y explorar más de 500 modelos. Solo 2 minutos, sin tarjeta de crédito. O vuelve más tarde.",
   "error.promotionLimit.action": "Registrarse",
+  "error.providerAuth.title": "{{provider}} cerró tu sesión",
+  "error.providerAuth.description": "Vuelve a conectar {{provider}} y envía tu mensaje de nuevo.",
+  "error.providerAuth.chatgpt.title": "OpenAI cerró tu sesión",
+  "error.providerAuth.chatgpt.description":
+    "Vuelve a iniciar sesión con ChatGPT y envía tu mensaje de nuevo para seguir usando los modelos Codex.",
 
   "error.chain.unknown": "Error desconocido",
   "error.chain.causedBy": "Causado por:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/fr.ts b/packages/kilo-vscode/webview-ui/src/i18n/fr.ts
index 81eb548966f..159e32340c2 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/fr.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/fr.ts
@@ -473,6 +473,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Inscrivez-vous gratuitement pour continuer et explorer plus de 500 modèles. 2 minutes, sans carte bancaire. Ou revenez plus tard.",
   "error.promotionLimit.action": "S'inscrire",
+  "error.providerAuth.title": "{{provider}} vous a déconnecté",
+  "error.providerAuth.description": "Reconnectez {{provider}}, puis renvoyez votre message.",
+  "error.providerAuth.chatgpt.title": "OpenAI vous a déconnecté",
+  "error.providerAuth.chatgpt.description":
+    "Reconnectez-vous à ChatGPT, puis renvoyez votre message pour continuer à utiliser les modèles Codex.",
 
   "error.chain.unknown": "Erreur inconnue",
   "error.chain.causedBy": "Causé par :",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/ja.ts b/packages/kilo-vscode/webview-ui/src/i18n/ja.ts
index b46b36598c9..a6a13784a65 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/ja.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/ja.ts
@@ -463,6 +463,11 @@ export const dict = {
   "error.promotionLimit.description":
     "無料でサインアップして、500以上のモデルを探索しましょう。2分で完了、クレジットカード不要。または後でお戻りください。",
   "error.promotionLimit.action": "サインアップ",
+  "error.providerAuth.title": "{{provider}} からログアウトしました",
+  "error.providerAuth.description": "{{provider}} に再接続してから、メッセージを再送信してください。",
+  "error.providerAuth.chatgpt.title": "OpenAI からログアウトしました",
+  "error.providerAuth.chatgpt.description":
+    "Codex モデルを引き続き使用するには、ChatGPT に再度ログインしてから、メッセージを再送信してください。",
 
   "error.chain.unknown": "不明なエラー",
   "error.chain.causedBy": "原因:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/ko.ts b/packages/kilo-vscode/webview-ui/src/i18n/ko.ts
index 41171ac67da..2367e50cc87 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/ko.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/ko.ts
@@ -465,6 +465,11 @@ export const dict = {
   "error.promotionLimit.description":
     "무료로 가입하여 500개 이상의 모델을 탐색하세요. 2분이면 완료, 신용카드 불필요. 또는 나중에 다시 오세요.",
   "error.promotionLimit.action": "가입하기",
+  "error.providerAuth.title": "{{provider}}에서 로그아웃되었습니다",
+  "error.providerAuth.description": "{{provider}}에 다시 연결한 후 메시지를 다시 보내주세요.",
+  "error.providerAuth.chatgpt.title": "OpenAI에서 로그아웃되었습니다",
+  "error.providerAuth.chatgpt.description":
+    "ChatGPT에 다시 로그인한 후 메시지를 다시 보내 Codex 모델을 계속 사용하세요.",
 
   "error.chain.unknown": "알 수 없는 오류",
   "error.chain.causedBy": "원인:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/nl.ts b/packages/kilo-vscode/webview-ui/src/i18n/nl.ts
index 55244598e57..6c93dc790a1 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/nl.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/nl.ts
@@ -469,6 +469,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Registreer je gratis om door te gaan en 500 andere modellen te ontdekken. Duurt 2 minuten, geen creditcard vereist. Of kom later terug.",
   "error.promotionLimit.action": "Registreren",
+  "error.providerAuth.title": "{{provider}} heeft je afgemeld",
+  "error.providerAuth.description": "Verbind opnieuw met {{provider}} en stuur je bericht nog een keer.",
+  "error.providerAuth.chatgpt.title": "OpenAI heeft je afgemeld",
+  "error.providerAuth.chatgpt.description":
+    "Meld je opnieuw aan bij ChatGPT en stuur je bericht nog een keer om Codex-modellen te blijven gebruiken.",
 
   "error.chain.unknown": "Onbekende fout",
   "error.chain.causedBy": "Veroorzaakt door:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/no.ts b/packages/kilo-vscode/webview-ui/src/i18n/no.ts
index 9c7c00a004c..a7b08921e48 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/no.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/no.ts
@@ -470,6 +470,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Registrer deg gratis for å fortsette og utforske over 500 modeller. Tar 2 minutter, ingen kredittkort nødvendig. Eller kom tilbake senere.",
   "error.promotionLimit.action": "Registrer deg",
+  "error.providerAuth.title": "{{provider}} logget deg ut",
+  "error.providerAuth.description": "Koble til {{provider}} på nytt, og send meldingen din igjen.",
+  "error.providerAuth.chatgpt.title": "OpenAI logget deg ut",
+  "error.providerAuth.chatgpt.description":
+    "Logg på ChatGPT igjen, og send meldingen din på nytt for å fortsette å bruke Codex-modeller.",
 
   "error.chain.unknown": "Ukjent feil",
   "error.chain.causedBy": "Forårsaket av:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/pl.ts b/packages/kilo-vscode/webview-ui/src/i18n/pl.ts
index 7ac1250f64e..84550227de4 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/pl.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/pl.ts
@@ -467,6 +467,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Zarejestruj się za darmo, aby kontynuować i odkryć ponad 500 modeli. Zajmie to 2 minuty, bez karty kredytowej. Lub wróć później.",
   "error.promotionLimit.action": "Zarejestruj się",
+  "error.providerAuth.title": "{{provider}} wylogował Cię",
+  "error.providerAuth.description": "Połącz się ponownie z {{provider}}, a następnie wyślij wiadomość jeszcze raz.",
+  "error.providerAuth.chatgpt.title": "OpenAI wylogowało Cię",
+  "error.providerAuth.chatgpt.description":
+    "Zaloguj się ponownie do ChatGPT, a następnie wyślij wiadomość jeszcze raz, aby kontynuować korzystanie z modeli Codex.",
 
   "error.chain.unknown": "Nieznany błąd",
   "error.chain.causedBy": "Spowodowany przez:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/ru.ts b/packages/kilo-vscode/webview-ui/src/i18n/ru.ts
index dab90d88b53..baf9174e0d4 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/ru.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/ru.ts
@@ -466,6 +466,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Зарегистрируйтесь бесплатно, чтобы продолжить и исследовать более 500 моделей. Займёт 2 минуты, кредитная карта не нужна. Или вернитесь позже.",
   "error.promotionLimit.action": "Зарегистрироваться",
+  "error.providerAuth.title": "Сеанс {{provider}} завершен",
+  "error.providerAuth.description": "Подключитесь к {{provider}} снова, затем отправьте сообщение еще раз.",
+  "error.providerAuth.chatgpt.title": "Сеанс OpenAI завершен",
+  "error.providerAuth.chatgpt.description":
+    "Войдите в ChatGPT снова, затем отправьте сообщение еще раз, чтобы продолжить использование моделей Codex.",
 
   "error.chain.unknown": "Неизвестная ошибка",
   "error.chain.causedBy": "Причина:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/th.ts b/packages/kilo-vscode/webview-ui/src/i18n/th.ts
index d2065e63a4d..5438042d7ee 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/th.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/th.ts
@@ -464,6 +464,11 @@ export const dict = {
   "error.promotionLimit.description":
     "สมัครฟรีเพื่อดำเนินการต่อและสำรวจโมเดลกว่า 500 รายการ ใช้เวลา 2 นาที ไม่ต้องใช้บัตรเครดิต หรือกลับมาทีหลัง",
   "error.promotionLimit.action": "สมัครสมาชิก",
+  "error.providerAuth.title": "{{provider}} ออกจากระบบของคุณแล้ว",
+  "error.providerAuth.description": "เชื่อมต่อ {{provider}} อีกครั้ง จากนั้นส่งข้อความของคุณใหม่",
+  "error.providerAuth.chatgpt.title": "OpenAI ออกจากระบบของคุณแล้ว",
+  "error.providerAuth.chatgpt.description":
+    "เข้าสู่ระบบ ChatGPT อีกครั้ง จากนั้นส่งข้อความของคุณใหม่เพื่อใช้งานโมเดล Codex ต่อไป",
 
   "error.chain.unknown": "ข้อผิดพลาดที่ไม่รู้จัก",
   "error.chain.causedBy": "สาเหตุ:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/tr.ts b/packages/kilo-vscode/webview-ui/src/i18n/tr.ts
index 6b306c13c9d..8a7d0c756ae 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/tr.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/tr.ts
@@ -466,6 +466,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Devam etmek ve 500'den fazla modeli keşfetmek için ücretsiz kayıt olun. 2 dakika sürer, kredi kartı gerekmez. Ya da daha sonra gelin.",
   "error.promotionLimit.action": "Kayıt Ol",
+  "error.providerAuth.title": "{{provider}} oturumunuzu kapattı",
+  "error.providerAuth.description": "{{provider}} bağlantısını yeniden kurun ve mesajınızı tekrar gönderin.",
+  "error.providerAuth.chatgpt.title": "OpenAI oturumunuzu kapattı",
+  "error.providerAuth.chatgpt.description":
+    "Codex modellerini kullanmaya devam etmek için ChatGPT ile tekrar giriş yapın ve mesajınızı yeniden gönderin.",
 
   "error.chain.unknown": "Bilinmeyen hata",
   "error.chain.causedBy": "Nedeni:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/uk.ts b/packages/kilo-vscode/webview-ui/src/i18n/uk.ts
index 99a692dd7b3..e2f36ebc4a3 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/uk.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/uk.ts
@@ -470,6 +470,11 @@ export const dict = {
   "error.promotionLimit.description":
     "Зареєструйтеся безкоштовно для продовження та доступу до 500+ моделей. Займе 2 хвилини, кредитна картка не потрібна. Або поверніться пізніше.",
   "error.promotionLimit.action": "Зареєструватися",
+  "error.providerAuth.title": "Сеанс {{provider}} завершено",
+  "error.providerAuth.description": "Підключіться до {{provider}} знову, а потім надішліть повідомлення ще раз.",
+  "error.providerAuth.chatgpt.title": "Сеанс OpenAI завершено",
+  "error.providerAuth.chatgpt.description":
+    "Увійдіть у ChatGPT знову, а потім надішліть повідомлення ще раз, щоб продовжити використання моделей Codex.",
 
   "error.chain.unknown": "Невідома помилка",
   "error.chain.causedBy": "Спричинено:",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/zh.ts b/packages/kilo-vscode/webview-ui/src/i18n/zh.ts
index 1f3aa2431ad..9d55d18cfa9 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/zh.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/zh.ts
@@ -459,6 +459,10 @@ export const dict = {
   "error.promotionLimit.title": "您需要注册才能继续",
   "error.promotionLimit.description": "免费注册以继续探索500多个模型。只需2分钟，无需信用卡。或稍后再来。",
   "error.promotionLimit.action": "注册",
+  "error.providerAuth.title": "{{provider}} 已将您登出",
+  "error.providerAuth.description": "请重新连接 {{provider}}，然后再次发送消息。",
+  "error.providerAuth.chatgpt.title": "OpenAI 已将您登出",
+  "error.providerAuth.chatgpt.description": "请再次登录 ChatGPT，然后重新发送消息以继续使用 Codex 模型。",
 
   "error.chain.unknown": "未知错误",
   "error.chain.causedBy": "原因：",
diff --git a/packages/kilo-vscode/webview-ui/src/i18n/zht.ts b/packages/kilo-vscode/webview-ui/src/i18n/zht.ts
index 8add4703792..4cddda95852 100644
--- a/packages/kilo-vscode/webview-ui/src/i18n/zht.ts
+++ b/packages/kilo-vscode/webview-ui/src/i18n/zht.ts
@@ -459,6 +459,10 @@ export const dict = {
   "error.promotionLimit.title": "您需要註冊才能繼續",
   "error.promotionLimit.description": "免費註冊以繼續探索500多個模型。只需2分鐘，無需信用卡。或稍後再來。",
   "error.promotionLimit.action": "註冊",
+  "error.providerAuth.title": "{{provider}} 已將您登出",
+  "error.providerAuth.description": "請重新連接 {{provider}}，然後再次發送訊息。",
+  "error.providerAuth.chatgpt.title": "OpenAI 已將您登出",
+  "error.providerAuth.chatgpt.description": "請再次登入 ChatGPT，然後重新發送訊息以繼續使用 Codex 模型。",
 
   "error.chain.unknown": "未知錯誤",
   "error.chain.causedBy": "原因：",
diff --git a/packages/kilo-vscode/webview-ui/src/utils/errorUtils.ts b/packages/kilo-vscode/webview-ui/src/utils/errorUtils.ts
index ba2d965cad7..a498668d66e 100644
--- a/packages/kilo-vscode/webview-ui/src/utils/errorUtils.ts
+++ b/packages/kilo-vscode/webview-ui/src/utils/errorUtils.ts
@@ -53,6 +53,11 @@ export interface ParsedError {
   message?: string
 }
 
+export interface ParsedProviderAuthError {
+  providerID: string
+  message: string
+}
+
 export function parseAssistantError(error: AssistantMessage["error"] | null | undefined): ParsedError | null {
   if (!error) return null
   if (error.name !== "APIError") return null
@@ -81,6 +86,20 @@ export function parseAssistantError(error: AssistantMessage["error"] | null | un
   return { statusCode, code, message }
 }
 
+export function parseProviderAuthError(
+  error: AssistantMessage["error"] | null | undefined,
+): ParsedProviderAuthError | null {
+  if (!error) return null
+  if (error.name !== "ProviderAuthError") return null
+
+  const data = error.data
+  if (!data) return null
+  const providerID = typeof data.providerID === "string" ? data.providerID : undefined
+  const message = typeof data.message === "string" ? data.message : undefined
+  if (!providerID || !message) return null
+  return { providerID, message }
+}
+
 export function isUnauthorizedPaidModelError(parsed: ParsedError | null): boolean {
   if (!parsed) return false
   return parsed.statusCode === 401 && parsed.code === errorCodes.PAID_MODEL_AUTH_REQUIRED
diff --git a/packages/opencode/src/kilocode/provider/codex-refresh.ts b/packages/opencode/src/kilocode/provider/codex-refresh.ts
new file mode 100644
index 00000000000..81a160a3411
--- /dev/null
+++ b/packages/opencode/src/kilocode/provider/codex-refresh.ts
@@ -0,0 +1,102 @@
+import type { PluginInput } from "@kilocode/plugin"
+
+export class CodexAuthExpiredError extends Error {
+  constructor(
+    message = "Your ChatGPT sign-in expired or was revoked. Sign in with ChatGPT again to continue using Codex models.",
+  ) {
+    super(message)
+    this.name = "CodexAuthExpiredError"
+  }
+}
+
+type Auth = {
+  type: "oauth"
+  refresh: string
+  access: string
+  expires: number
+  accountId?: string
+}
+
+type Tokens = {
+  id_token: string
+  access_token: string
+  refresh_token: string
+  expires_in?: number
+}
+
+type Input = {
+  input: PluginInput
+  getAuth: () => Promise<unknown>
+  auth: Auth
+  refresh: (refresh: string) => Promise<Tokens>
+  account: (tokens: Tokens) => string | undefined
+}
+
+const pending = new Map<string, Promise<Auth>>()
+
+function valid(auth: Auth) {
+  return auth.access && auth.expires > Date.now()
+}
+
+function usable(auth: Auth, refresh: string) {
+  return auth.refresh !== refresh || valid(auth)
+}
+
+function oauth(auth: unknown): Auth | undefined {
+  if (!auth || typeof auth !== "object" || !("type" in auth) || auth.type !== "oauth") return
+  return auth as Auth
+}
+
+function assign(auth: Auth, next: Auth) {
+  auth.access = next.access
+  auth.refresh = next.refresh
+  auth.expires = next.expires
+  auth.accountId = next.accountId
+}
+
+function recoverable(err: unknown) {
+  return err instanceof Error && /^Token refresh failed: 401\b/.test(err.message)
+}
+
+export async function refreshCodexAuth(input: Input) {
+  const inflight = pending.get(input.auth.refresh)
+  if (inflight) {
+    const next = await inflight
+    assign(input.auth, next)
+    return next
+  }
+
+  const promise = (async () => {
+    const fresh = await input.getAuth()
+    const current = oauth(fresh)
+    if (current && valid(current)) return current
+
+    try {
+      const base = current && current.refresh !== input.auth.refresh ? current : input.auth
+      const tokens = await input.refresh(base.refresh)
+      const id = input.account(tokens) || base.accountId
+      const next = {
+        type: "oauth" as const,
+        refresh: tokens.refresh_token,
+        access: tokens.access_token,
+        expires: Date.now() + (tokens.expires_in ?? 3600) * 1000,
+        ...(id && { accountId: id }),
+      }
+      await input.input.client.auth.set({ path: { id: "openai" }, body: next })
+      return next
+    } catch (err) {
+      if (!recoverable(err)) throw err
+
+      const latest = await input.getAuth()
+      const next = oauth(latest)
+      if (next && usable(next, input.auth.refresh)) return next
+
+      throw new CodexAuthExpiredError()
+    }
+  })().finally(() => pending.delete(input.auth.refresh))
+
+  pending.set(input.auth.refresh, promise)
+  const next = await promise
+  assign(input.auth, next)
+  return next
+}
diff --git a/packages/opencode/src/plugin/codex.ts b/packages/opencode/src/plugin/codex.ts
index d24a0fa959b..fc3701618ac 100644
--- a/packages/opencode/src/plugin/codex.ts
+++ b/packages/opencode/src/plugin/codex.ts
@@ -1,11 +1,11 @@
 import type { Hooks, PluginInput } from "@kilocode/plugin"
 import * as Log from "@opencode-ai/core/util/log"
-import { Installation } from "../installation"
 import { InstallationVersion } from "@opencode-ai/core/installation/version"
 import { OAUTH_DUMMY_KEY } from "../auth"
 import os from "os"
 import { setTimeout as sleep } from "node:timers/promises"
 import { createServer } from "http"
+import { refreshCodexAuth } from "@/kilocode/provider/codex-refresh" // kilocode_change
 
 const log = Log.create({ service: "plugin.codex" })
 
@@ -439,20 +439,9 @@ export async function CodexAuthPlugin(input: PluginInput): Promise<Hooks> {
             // Check if token needs refresh
             if (!currentAuth.access || currentAuth.expires < Date.now()) {
               log.info("refreshing codex access token")
-              const tokens = await refreshAccessToken(currentAuth.refresh)
-              const newAccountId = extractAccountId(tokens) || authWithAccount.accountId
-              await input.client.auth.set({
-                path: { id: "openai" },
-                body: {
-                  type: "oauth",
-                  refresh: tokens.refresh_token,
-                  access: tokens.access_token,
-                  expires: Date.now() + (tokens.expires_in ?? 3600) * 1000,
-                  ...(newAccountId && { accountId: newAccountId }),
-                },
-              })
-              currentAuth.access = tokens.access_token
-              authWithAccount.accountId = newAccountId
+              // kilocode_change start
+              await refreshCodexAuth({ input, getAuth, auth: currentAuth, refresh: refreshAccessToken, account: extractAccountId })
+              // kilocode_change end
             }
 
             // Build headers
diff --git a/packages/opencode/src/session/message-v2.ts b/packages/opencode/src/session/message-v2.ts
index 83287e63c0e..53b5dc23abc 100644
--- a/packages/opencode/src/session/message-v2.ts
+++ b/packages/opencode/src/session/message-v2.ts
@@ -23,6 +23,7 @@ import type { SystemError } from "bun"
 import type { Provider } from "@/provider/provider"
 import { ModelID, ProviderID } from "@/provider/schema"
 import { SessionNetwork } from "./network" // kilocode_change
+import { CodexAuthExpiredError } from "@/kilocode/provider/codex-refresh" // kilocode_change
 import { Effect, Schema, Types } from "effect"
 import { zod, ZodOverride } from "@/util/effect-zod"
 import { NonNegativeInt, withStatics } from "@/util/schema"
@@ -1240,6 +1241,14 @@ export function fromError(
         },
         { cause: e },
       ).toObject()
+    case e instanceof CodexAuthExpiredError: // kilocode_change start
+      return new AuthError(
+        {
+          providerID: "openai",
+          message: e.message,
+        },
+        { cause: e },
+      ).toObject() // kilocode_change end
     case SessionNetwork.disconnected(e): // kilocode_change start
       return new APIError(
         {
diff --git a/packages/opencode/test/kilocode/codex-auth-refresh.test.ts b/packages/opencode/test/kilocode/codex-auth-refresh.test.ts
new file mode 100644
index 00000000000..33d4ed7b3c3
--- /dev/null
+++ b/packages/opencode/test/kilocode/codex-auth-refresh.test.ts
@@ -0,0 +1,123 @@
+import { describe, expect, test } from "bun:test"
+import { CodexAuthExpiredError, refreshCodexAuth } from "../../src/kilocode/provider/codex-refresh"
+import type { PluginInput } from "@kilocode/plugin"
+import { MessageV2 } from "../../src/session/message-v2"
+import { ProviderID } from "../../src/provider/schema"
+
+type Auth = {
+  type: "oauth"
+  refresh: string
+  access: string
+  expires: number
+  accountId?: string
+}
+
+const expired = (): Auth => ({
+  type: "oauth",
+  access: "old-access",
+  refresh: "old-refresh",
+  expires: 0,
+})
+
+function plugin(persist: (auth: Auth) => void): PluginInput {
+  const set = async (req: { body: Auth }) => {
+    persist(req.body)
+  }
+  return {
+    client: {
+      auth: { set },
+    },
+  } as unknown as PluginInput
+}
+
+describe("Codex auth refresh", () => {
+  test("serializes expired Codex auth as ProviderAuthError", () => {
+    const result = MessageV2.fromError(new CodexAuthExpiredError(), { providerID: ProviderID.make("openai") })
+
+    expect(result).toStrictEqual({
+      name: "ProviderAuthError",
+      data: {
+        providerID: "openai",
+        message: "Your ChatGPT sign-in expired or was revoked. Sign in with ChatGPT again to continue using Codex models.",
+      },
+    })
+  })
+
+  test("coalesces concurrent refreshes and persists rotated tokens", async () => {
+    const calls: string[] = []
+    const writes: Auth[] = []
+    const first = expired()
+    const second = expired()
+    const refresh = async (token: string) => {
+      calls.push(token)
+      await new Promise((resolve) => setTimeout(resolve, 1))
+      return { id_token: "", access_token: "next-access", refresh_token: "next-refresh", expires_in: 60 }
+    }
+
+    const [a, b] = await Promise.all([
+      refreshCodexAuth({
+        input: plugin((auth) => writes.push(auth)),
+        getAuth: async () => first,
+        auth: first,
+        refresh,
+        account: () => undefined,
+      }),
+      refreshCodexAuth({
+        input: plugin((auth) => writes.push(auth)),
+        getAuth: async () => second,
+        auth: second,
+        refresh,
+        account: () => undefined,
+      }),
+    ])
+
+    expect(calls).toEqual(["old-refresh"])
+    expect(writes).toHaveLength(1)
+    expect(a.access).toBe("next-access")
+    expect(b.refresh).toBe("next-refresh")
+    expect(first.access).toBe("next-access")
+    expect(second.access).toBe("next-access")
+  })
+
+  test("uses a newer stored token after refresh 401", async () => {
+    const fresh = {
+      type: "oauth" as const,
+      access: "fresh-access",
+      refresh: "fresh-refresh",
+      expires: Date.now() + 60_000,
+    }
+    const auth = expired()
+    let count = 0
+    const getAuth = async () => {
+      count++
+      return count === 1 ? auth : fresh
+    }
+
+    const result = await refreshCodexAuth({
+      input: plugin(() => {}),
+      getAuth,
+      auth,
+      refresh: async () => {
+        throw new Error("Token refresh failed: 401")
+      },
+      account: () => undefined,
+    })
+
+    expect(result).toBe(fresh)
+  })
+
+  test("throws reauth error when refresh 401 has no newer stored token", async () => {
+    const auth = expired()
+    await expect(
+      refreshCodexAuth({
+        input: plugin(() => {}),
+        getAuth: async () => auth,
+        auth,
+        refresh: async () => {
+          throw new Error("Token refresh failed: 401")
+        },
+        account: () => undefined,
+      }),
+    ).rejects.toBeInstanceOf(CodexAuthExpiredError)
+  })
+})