diff --git a/packages/server/src/server/agent/providers/codex-app-server-agent.test.ts b/packages/server/src/server/agent/providers/codex-app-server-agent.test.ts
index 4ae8a43e96..06339278b6 100644
--- a/packages/server/src/server/agent/providers/codex-app-server-agent.test.ts
+++ b/packages/server/src/server/agent/providers/codex-app-server-agent.test.ts
@@ -66,7 +66,6 @@ interface CodexClientLike {
 type CodexTestSession = AgentSession & {
   connected: boolean;
   currentThreadId: string | null;
-  currentTurnId: string | null;
   activeForegroundTurnId: string | null;
   client: CodexClientLike | null;
 };
@@ -2799,56 +2798,6 @@ describe("Codex app-server provider", () => {
     }
   });
 
-  test("interrupts the next turn after a prior identification wait is abandoned", async () => {
-    let turnStartCount = 0;
-    const interruptedTurns: unknown[] = [];
-    const appServer = createFakeCodexAppServer({
-      "turn/start": async () => {
-        turnStartCount += 1;
-        return {};
-      },
-      "turn/interrupt": async (params) => {
-        interruptedTurns.push(params);
-        return {};
-      },
-    });
-    const session = new CodexAppServerAgentSession(
-      createConfig({ cwd: "/workspace/project" }),
-      null,
-      createTestLogger(),
-      async () => appServer.child,
-    );
-
-    try {
-      const firstResult = session.run("First turn.");
-      await vi.waitFor(() => expect(turnStartCount).toBe(1));
-      const firstInterrupt = session.interrupt();
-      appServer.completeTurn({ turnId: "turn-first" });
-      await expect(firstInterrupt).rejects.toThrow(
-        "Cannot interrupt Codex before turn/started identifies the active turn",
-      );
-      await firstResult;
-
-      const secondResult = session.run("Second turn.");
-      await vi.waitFor(() => expect(turnStartCount).toBe(2));
-      const secondInterrupt = session.interrupt();
-      appServer.startsTurn({ threadId: "thread-1", turnId: "turn-first" });
-
-      await vi.waitFor(() => expect(session.currentTurnId).toBeNull());
-      expect(interruptedTurns).toEqual([]);
-
-      appServer.startsTurn({ threadId: "thread-1", turnId: "turn-second" });
-      await secondInterrupt;
-
-      expect(interruptedTurns).toEqual([{ threadId: "thread-1", turnId: "turn-second" }]);
-      appServer.completeTurn({ turnId: "turn-second" });
-      await secondResult;
-      appServer.assertNoErrors();
-    } finally {
-      await session.close();
-    }
-  });
-
   test("rejects an interrupt before Codex initializes the thread", async () => {
     const appServer = createFakeCodexAppServer();
     const session = new CodexAppServerAgentSession(
diff --git a/packages/server/src/server/agent/providers/codex-app-server-agent.ts b/packages/server/src/server/agent/providers/codex-app-server-agent.ts
index d5b20cc5df..e17493f4e2 100644
--- a/packages/server/src/server/agent/providers/codex-app-server-agent.ts
+++ b/packages/server/src/server/agent/providers/codex-app-server-agent.ts
@@ -2264,7 +2264,6 @@ type ParsedCodexNotification =
   | { kind: "turn_started"; turnId: string; threadId: string | null }
   | {
       kind: "turn_completed";
-      turnId: string | null;
       status: string;
       errorMessage: string | null;
       threadId: string | null;
@@ -2415,7 +2414,6 @@ const CodexNotificationSchema = z.union([
     .transform(
       ({ params }): ParsedCodexNotification => ({
         kind: "turn_completed",
-        turnId: params.turn.id ?? null,
         status: params.turn.status,
         errorMessage: params.turn.error?.message ?? null,
         threadId: params.threadId ?? null,
@@ -2836,7 +2834,6 @@ const CodexNotificationSchema = z.union([
     .transform(
       ({ params }): ParsedCodexNotification => ({
         kind: "turn_completed",
-        turnId: null,
         status: "interrupted",
         errorMessage: null,
         threadId: getCodexEventThreadId(params),
@@ -2857,7 +2854,6 @@ const CodexNotificationSchema = z.union([
     .transform(
       ({ params }): ParsedCodexNotification => ({
         kind: "turn_completed",
-        turnId: null,
         status: "completed",
         errorMessage: null,
         threadId: getCodexEventThreadId(params),
@@ -3113,7 +3109,6 @@ export class CodexAppServerAgentSession implements AgentSession {
   private currentMode: string;
   private currentThreadId: string | null = null;
   private currentTurnId: string | null = null;
-  private readonly finalizedNativeTurnIds = new Set<string>();
   private pendingForegroundTurnIdentification: {
     foregroundTurnId: string;
     promise: Promise<string | null>;
@@ -5336,9 +5331,6 @@ export class CodexAppServerAgentSession implements AgentSession {
       this.emitSubAgentActivityUpdate(subAgentCallId, "running");
       return;
     }
-    if (this.finalizedNativeTurnIds.has(parsed.turnId)) {
-      return;
-    }
     this.currentTurnId = parsed.turnId;
     const pendingIdentification = this.pendingForegroundTurnIdentification;
     if (
@@ -5366,10 +5358,6 @@ export class CodexAppServerAgentSession implements AgentSession {
       this.emitSubAgentActivityUpdate(subAgentCallId, status);
       return;
     }
-    const finalizedTurnId = parsed.turnId ?? this.currentTurnId;
-    if (finalizedTurnId) {
-      this.finalizedNativeTurnIds.add(finalizedTurnId);
-    }
     if (parsed.status === "failed") {
       this.emitEvent({
         type: "turn_failed",
diff --git a/packages/server/src/server/agent/providers/codex/test-utils/fake-app-server.ts b/packages/server/src/server/agent/providers/codex/test-utils/fake-app-server.ts
index b72379abcc..e9d6a10bdc 100644
--- a/packages/server/src/server/agent/providers/codex/test-utils/fake-app-server.ts
+++ b/packages/server/src/server/agent/providers/codex/test-utils/fake-app-server.ts
@@ -51,7 +51,7 @@ export interface FakeCodexAppServer {
   waitForTurnStart(): Promise<JsonObject>;
   nextResponse(): Promise<string>;
   startsTurn(params: { threadId: string; turnId?: string }): void;
-  completeTurn(params?: { threadId?: string; turnId?: string }): void;
+  completeTurn(params?: { threadId?: string }): void;
   startsSubAgent(params: {
     callId: string;
     threadId: string;
@@ -325,7 +325,7 @@ export function createFakeCodexAppServer(
           method: "turn/completed",
           params: {
             threadId: params.threadId ?? "thread-1",
-            turn: { id: params.turnId, status: "completed" },
+            turn: { status: "completed" },
           },
         })}\n`,
       );